CN103309260B - A kind of control system of SVG/APF parallel running and method - Google Patents
A kind of control system of SVG/APF parallel running and method Download PDFInfo
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- CN103309260B CN103309260B CN201310242708.3A CN201310242708A CN103309260B CN 103309260 B CN103309260 B CN 103309260B CN 201310242708 A CN201310242708 A CN 201310242708A CN 103309260 B CN103309260 B CN 103309260B
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Abstract
The control system that the invention discloses a kind of SVG/APF parallel running, comprising: the two or more SVG equipment that comprises controller parallel with one another, or the two or more APF equipment that comprises controller parallel with one another; The LAN connection device being connected with the controller in every SVG equipment or APF equipment; Be placed on bus the voltage transformer that output is connected with the controller in every SVG equipment or APF equipment simultaneously; Be placed on bus, output seals in the current transformer of the controller in every SVG equipment or APF successively. The invention also discloses a kind of control method of SVG/APF parallel running. The present invention can reduce the requirement of SVG/APF equipment to real-time communication, and can realize the failure tolerant of each SVG/APF equipment in parallel, and when improving equipment dependability, simplified apparatus hardware configuration, reaches optimum compensation effect and utilization rate of equipment and installations.
Description
Technical field
The present invention relates to power electronics control technology field, more particularly, relate to a kind of SVG(StaticVarGenerator, static reacance transmitter)/APF(ActivePowerFilter, Active Power Filter-APF)The control system of parallel running and method.
Background technology
(ActivePowerFilter has SVG (StaticVarGenerator, static reacance generator)/APFActive power filter) etc. power electronic equipment be subject to power device withstand voltage level, current capacity, switching frequency,The restriction of manufacturing process, price and connection in series-parallel technology etc., it is very large that single-machine capacity can not do, and works as systemWhen the electric current that need compensate exceedes the specified compensation ability of single device, conventionally can select multiple devices parallel connectionThe mode of operation, parallel running mode is as one of vast capacity supply of material solution at present. In addition,The mode of parallel running also can be used under other situation, as user has used the electric power such as SVG/APFElectronic equipment, while carrying out dilatation again, also can select the mode of multiple devices parallel running, and for example existsSpecial reliability requirement occasion, also will use multiple devices parallel running while requiring complete machine N+1 redundancy runningMode.
The connected mode of many traditional SVG/APF equipment, as depicted in figs. 1 and 2. Fig. 1 is positionPreferential offset-type, equipment 1 is received respectively on bus to equipment N, and the method is to apply in industry spotMany methods, because its control is simple, extended capability is strong, reliability is high, each equipment room does not need interconnectedLine; But it is poor that the shortcoming of the method maximum is dynamic property, and the equipment dropping into is at first due to for a long timeIn oepration at full load state and very easily aging, and intermodule lacks to coordinate equipment self is producedHarmonic wave can not be eliminated, and also needs to be equipped with separately a set of user's current sensor to every equipment. Fig. 2 is pointLoose control type is that the double measurement line of user's current sensor is by the side of connecting with the main distinction of Fig. 1Formula taps into each equipment, only needs a set of user's current sensor. Under this parallel way, separate unit fortuneWhen row, control system keeps track load current and send offset current, when parallel running, control system keeps track and taken advantage of benefitThe load current of repaying coefficient sends offset current, and wherein penalty coefficient can be according to the number of units of equipment in parallel and eachThe calculation of capacity of equipment in parallel obtains. Under these two kinds of methods of operation, the control mode of each equipment and separate unit fortuneControl mode when row there is no essential distinction, and each equipment independent operating, does not have communication each other, does not knowOther equipment of road have been sent out how many electric currents, also do not know system power situation, and compensation effect is poor. And when eachWhen equipment does not have whole full-load run, if certain equipment fault is out of service, other equipment also do not know,Thereby can not improve accordingly self output, waste compensation capacity. And these two kinds of modes all can not expireThe method of operation of the SVG constant voltage control of foot wind-powered electricity generation, idle instruction trace can not support dispatching of power netwoks time,Make the application scenario of equipment parallel running have limitation.
Summary of the invention
In view of this, the invention provides a kind of control system and method for SVG/APF parallel running, canReduce the requirement of SVG/APF equipment to real-time communication, and can realize each SVG/APF in parallel and establishStandby failure tolerant, when improving equipment dependability, simplified apparatus hardware configuration, reaches optimum benefitRepay effect and utilization rate of equipment and installations.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of static reacance generator/The control system of Parallel Operation of Active, comprising:
Two or more static reacance generator equipment parallel with one another and that all comprise controller,Or two or more Active Power Filter-APF equipment parallel with one another and that all comprise controller;
Based on ethernet communication and with every static reacance generator equipment in controller, or with everyThe connected LAN connection device of controller in Active Power Filter-APF equipment;
Be placed on bus, and output simultaneously with described every static reacance generator equipment in controlDevice, or the voltage transformer being connected with the controller in described every Active Power Filter-APF equipment simultaneously;
Be placed on bus, and output seals in the control in described every static reacance transmitter device successivelyDevice processed, or import successively the current transformer of the controller in described every Active Power Filter-APF equipment into.
Preferably, the controller in described static reacance generator equipment or Active Power Filter-APF equipmentInclude: the first digital signal processor unit, the second digital signal processor unit, field-programmableGate array unit, analog data interface unit and Ethernet interface unit; Wherein:
Described analog data interface unit is connected with described current transformer with described voltage transformer;
Described the first digital signal processor unit is connected with described analog data interface unit;
Described the first digital signal processor unit is connected with described the second digital signal processor unit;
Described the second digital signal processor unit is connected with described Ethernet interface unit;
Described the first digital signal processor unit and described the second digital signal processor unit respectively with instituteStating field programmable gate array unit is connected;
Described Ethernet interface unit is connected with described LAN connection device.
Preferably, described analog data interface unit comprises: voltage detection terminal and current detecting terminal;Wherein:
The output of described voltage transformer is in parallel with described voltage detection terminal;
The described current detecting terminal of output series connection access of described current transformer.
A control method for static reacance generator/Parallel Operation of Active, described controlling partyMethod is applied to aforementioned control system, and described control method comprises:
Control in controller or Active Power Filter-APF equipment in every static reacance generator equipmentDevice, obtains respectively the voltage and current signal of electrical network by voltage transformer summation current transformer, and according toThe voltage and current signal of electrical network draws the current acquisition amount of described control system;
Control in controller or Active Power Filter-APF equipment in every static reacance generator equipmentDevice, sends the status information of self to connected LAN connection device, and passes through described LANConnection device receives controller or the Active Power Filter-APF equipment in other static reacance generator equipmentIn controller send status information;
Control in controller or Active Power Filter-APF equipment in every static reacance generator equipmentDevice, according to the status information of himself, the controller in other static reacance generator equipment receivingOr the status information that the controller in Active Power Filter-APF equipment sends, and described control systemCurrent acquisition amount, calculates the current component that needs compensation automatically, and output needs the electric current of compensation.
Preferably, the controller in described every static reacance generator equipment or every active electric power filterController in ripple device equipment, by voltage transformer summation current transformer obtain respectively electrical network voltage andCurrent signal, and draw the current acquisition amount of described control system according to the voltage and current signal of electrical networkStep is specially:
The first digital signal processor unit in controller, by the voltage detecting of analog data interfaceTerminal and current detecting terminal gather the voltage and current signal of electrical network, and according to the voltage and current of electrical networkSignal draws the current acquisition amount of described control system.
Preferably, the controller in described every static reacance generator equipment or every active electric power filterController in ripple device equipment, to the status information of connected LAN connection device transmission self,And receive the controller in other static reacance generator equipment or have by described LAN connection deviceThe step of the status information that the controller in active power filter equipment sends is specially:
The second digital signal processor unit in controller sends the state letter of self by Ethernet interfaceCease, and receive the status information of other controller by Ethernet interface.
Preferably, controller or the Active Power Filter-APF in described every static reacance generator equipmentController in equipment, according to the status information of self, other static reacance generator equipment receivingIn controller or the status information that sends of controller in Active Power Filter-APF equipment, and described inThe current acquisition amount of control system, calculates the current component that needs compensation automatically, and output need to compensateElectric current is specially:
The second digital signal processor unit in controller is according to the status information of self and other controllerStatus information, set up the networking controller parameter list that comprises tractor parameter, networking parameter and control parameter;
The second digital signal processor unit in controller is according to the described networking controller parameter list of setting upAdd up and calculate the penalty coefficient of self, and described penalty coefficient and control parameter can be compiled by sceneJourney gate array unit is sent to the first digital signal processor unit;
The first digital signal processor unit according to the described penalty coefficient that receives, control parameter and described inThe current acquisition amount of control system calculates the current component that self need to compensate, and by the electricity of needs compensationFlow point amount is sent to field programmable gate array unit;
Field programmable gate array unit, according to the current component of the needs compensation receiving, carries out electric current and closesRing compensation, output needs the electric current of compensation.
Preferably, described the first digital signal processor unit is according to the described penalty coefficient, the control that receiveThe current acquisition amount of parameter processed and described control system calculates the step of the current component that self need to compensateBe specially:
The first digital signal processor unit is by described penalty coefficient, described control parameter and described control systemThe current acquisition amount of system multiplies each other and obtains current component;
The first digital signal processor unit, according to controlling target, carries out conventional reactive current to current componentCalculate with harmonic wave Current Decomposition, obtain the current component that self need to compensate.
Preferably, described the first digital signal processor unit is according to the described penalty coefficient, the control that receiveIt is concrete that the current acquisition amount of parameter processed and described control system calculates the current component that self need to compensateFor:
The first digital signal processor unit is according to the current acquisition amount of controlling target and described control system,Carry out conventional reactive current and harmonic wave Current Decomposition and calculate, obtain the current value of total needs compensation;
The first digital signal processor unit by the current value of total needs compensation be multiplied by described penalty coefficient andDescribed control parameter, obtains the current component that self need to compensate.
Preferably, described penalty coefficient refers to:
Wherein, kiRepresent i platform static reacance generator equipment, or Active Power Filter-APF equipmentPenalty coefficient, SiRepresent i platform static reacance generator equipment, or the volume of Active Power Filter-APF equipmentConstant volume, BiRepresent i platform static reacance generator equipment, or the operation of Active Power Filter-APF equipmentStatus information; Wherein, i platform static reacance generator equipment, or Active Power Filter-APF equipment equipmentWhen operation, Bi=1; I platform static reacance generator equipment, or Active Power Filter-APF equipment does not moveTime, Bi=0。
Can find out the control of a kind of SVG/APF parallel running disclosed by the invention from above-mentioned technical schemeSystem and method processed, by LAN connection device, has reduced SVG between SVG equipment or APF equipmentEquipment or the requirement of APF equipment to real-time communication, realized each SVG equipment in parallel or APFThe failure tolerant of equipment, has improved the reliability of equipment, and only need pass through a set of current transformer and electricityPress transformer just can complete the compensate function of complete equipment, simplified device hardware configuration, reached optimumCompensation effect and utilization rate of equipment and installations.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below will be to realityThe accompanying drawing of executing required use in example or description of the Prior Art is briefly described, apparently, belowAccompanying drawing in description is only some embodiments of the present invention, for those of ordinary skill in the art,Do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the preferential offset-type system in the disclosed position of prior art;
Fig. 2 is the structural representation of the disclosed decentralised control type of prior art system;
Fig. 3 is that the structure of the control system of the disclosed a kind of SVG/APF parallel running of the embodiment of the present invention is shownIntention;
Fig. 4 is the knot of the control system of the disclosed a kind of SVG/APF parallel running of another embodiment of the present inventionStructure schematic diagram;
Fig. 5 is the structural representation of the disclosed controller of a upper embodiment;
Fig. 6 is the wiring schematic diagram of the disclosed voltage transformer summation current transformer of a upper embodiment;
Fig. 7 is the flow process of the control method of the disclosed a kind of SVG/APF parallel running of the embodiment of the present inventionFigure;
Fig. 8 is the stream of the control method of the disclosed a kind of SVG/APF parallel running of another embodiment of the present inventionCheng Tu.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried outDescribe clearly and completely, obviously, described embodiment is only a part of embodiment of the present invention,Instead of whole embodiment. Based on the embodiment in the present invention, those of ordinary skill in the art are not havingMake the every other embodiment obtaining under creative work prerequisite, all belong to the scope of protection of the invention.
The embodiment of the invention discloses a kind of control system and method for SVG/APF parallel running, can fallThe requirement of low SVG/APF equipment to real-time communication, and can realize each SVG/APF equipment in parallelFailure tolerant, improve when equipment dependability, simplified apparatus hardware configuration, reaches optimum compensationEffect and utilization rate of equipment and installations. In embodiments of the present invention, the "/" symbol in " SVG/APF " all representsOr meaning.
As shown in Figure 3, be the control system of the disclosed a kind of SVG/APF parallel running of the embodiment of the present invention,Comprise:
Two or more SVG equipment 11 parallel with one another and that all comprise controller 111, orTwo or more APF equipment 11 parallel with one another and that all comprise controller 111;
Based on ethernet communication and with every SVG equipment 11 in controller 111, or with every APFThe connected LAN connection device 12 of controller 111 in equipment 11;
Be placed on bus, and output simultaneously with every SVG equipment 11 in controller 111, orVoltage transformer 13 simultaneously that be connected with the controller 111 in every APF equipment 11;
Be placed on bus, and output seals in every controller 111 in SVG equipment 11 successively, orPerson seals in the current transformer 14 of every controller 111 in APF equipment 11 successively.
The operation principle of above-described embodiment is: the controller 111 in every SVG equipment 11, or everyController 111 in APF equipment 11, obtains electrical network by voltage transformer 13 summation current transformers 14Voltage and current signal, and draw the current acquisition of control system according to the voltage and current signal of electrical networkAmount.
Controller 111 in every SVG equipment 11, or controller 111 in every APF equipment 11,To connected LAN connection device 12, send the status information of self, and connect by LANEquipment 12 receives the controller 111 in other SVG equipment 11, or control in APF equipment 11The status information that device 111 sends, wherein, described status information comprises tractor parameter, networking parameter and controlParameter processed.
Controller 111 in SVG equipment 11, or controller 111 in APF equipment 11, according toController 111 in self status information, other SVG equipment 11 of receiving, or APF establishesThe status information that controller 111 in standby 11 sends, and according to the voltage and current letter of the electrical network obtainingThe current acquisition amount of the control system number drawing, calculates the current component that self need to compensate automatically, defeatedGo out to need the electric current of compensation.
In the above-described embodiments, control system and the method for SVG equipment or the parallel running of APF equipment,Reduce SVG equipment or the requirement of APF equipment to real-time communication, realized each SVG in parallelThe failure tolerant of equipment or APF equipment, improved the reliability of equipment, and control system only need be led toCross the compensate function that a set of current transformer and voltage transformer just can complete complete equipment, simplified equipmentHardware configuration, has reached optimum compensation effect and utilization rate of equipment and installations.
As shown in Figure 4, be the control of the disclosed a kind of SVG/APF parallel running of another embodiment of the present inventionSystem, comprising:
Two or more SVG equipment 21 parallel with one another and that all comprise controller 211, orTwo or more APF equipment 21 parallel with one another and that all comprise controller 211;
Based on ethernet communication and with every SVG equipment 21 in controller 211, or with every APFThe connected LAN connection device 22 of controller 211 in equipment 21;
Be placed on bus, and output simultaneously with every SVG equipment 21 in controller 211, orVoltage transformer 23 simultaneously that be connected with the controller 211 in every APF equipment 21;
Be placed on bus, output seals in every controller 211 in SVG equipment 21 successively, or complies withThe inferior current transformer 24 that seals in every controller 211 in APF equipment 21; Wherein:
As shown in Figure 5, controller 211 includes: the first digital signal processor unit 2111, secondDigital signal processor unit 2112, field programmable gate array unit 2113, analog data interface listUnit 2114 and Ethernet interface unit 2115; Wherein:
Analog data interface unit 2114 is connected with voltage transformer 23 summation current transformers 24;
The first digital signal processor unit 2111 is connected with analog data interface unit 2114;
The first digital signal processor unit 2111 is connected with the second digital signal processor unit 2112;
The second digital signal processor unit 2112 is connected with Ethernet interface unit 2115;
The first digital signal processor unit 2111 and the second digital signal processor unit 2112 respectively withField programmable gate array unit 2113 is connected;
Ethernet interface unit 2115 is connected with the LAN connection device 22 based on ethernet communication.
Concrete, analog data interface unit 2114 comprises: voltage detection terminal and current detecting terminal;Wherein:
The output of voltage transformer 23 is in parallel with voltage detection terminal;
The output series connection access current detecting terminal of current transformer 24.
The operation principle of above-described embodiment is: the first digital signal processor unit in controller 2112111, by voltage detection terminal and the current detecting terminal of analog data interface 2114, gather electrical networkVoltage and current signal, show that according to the voltage signal gathering and current signal the electric current of control system adoptsCollection amount.
The second digital signal processor unit 2112 in controller 211 is by Ethernet interface unit 2115Send the status information of self to the LAN connection device 22 based on ethernet communication, and pass through EthernetInterface unit 2115 receives, the status information of other controller 211 in LAN connection device 22, itsIn, described status information comprises complete machine nominal parameter, networking parameter and controls parameter.
The second digital signal processor unit 2112 in controller 211, according to the status information of self andController 211 in other SVG equipment 21 receiving, or controller 211 in APF equipment 21The status information sending, sets up the networking controller ginseng that comprises tractor parameter, networking parameter and control parameterNumber table.
The second digital signal processor unit 2112 is added up and is calculated according to the networking controller parameter list of setting upGo out the bucking-out system of self, and penalty coefficient and control parameter are passed through to field programmable gate array unit2113 are sent to the first digital signal processor unit 2111.
The first digital signal processor unit 2111 according to the penalty coefficient receiving, control parameter andAccording to the current acquisition amount of the voltage signal gathering and the control system that draws of current signal, calculate selfNeed the current component of compensation, and the current component of needs compensation is sent to field programmable gate array listUnit 2113.
Field programmable gate array unit 2113, according to the current component of the needs compensation receiving, carries out electricityStream closed loop compensation, output needs the electric current of compensation.
Above-mentioned voltage detection terminal comprises R, S, tri-power input terminals of T, current detecting terminal bagContaining IR+, IR-, IS+, IS-, IT+, six input and output terminals of IT-.
The output of voltage transformer is in parallel with the voltage detection terminal in every controller respectively; Electric current is mutualThe output of sensor accesses the current detecting terminal of every controller successively, forms current detecting ring. As Fig. 6Shown in, taking R, mutually as example, the R phase voltage signal of voltage transformer secondary side accesses respectively each controllerR binding post; The sub-IR+ of current output terminal of R phase current mutual inductor, the IR+ of access First controller,Then the IR-of First controller meets the IR+ of second controller, and the rest may be inferred, until the control of N-1 platformThe IR-of device processed receives the IR+ of N platform controller, finally by the IR-access R electricity mutually of N platform controllerThe current detecting input terminal IR-of current transformer. The voltage and current signal wiring of other S, T phase two-phase withR is mutually similar.
The first above-mentioned digital signal processor unit is according to the penalty coefficient receiving, control parameter, electricityThe voltage and current calculated signals of net goes out the current component that self need to compensate and can pass through following two kinds of sidesFormula:
First kind of way is first by the first digital signal processor unit, penalty coefficient, control to be joinedThe current acquisition amount of number and control system multiplies each other and obtains current component, then by the first Digital Signal ProcessingDevice unit, according to controlling target, carries out conventional reactive current and the calculating of harmonic wave Current Decomposition to current component,Obtain the current component that self need to compensate.
The second way is first to pass through the first digital signal processor unit according to controlling target and controlThe current acquisition amount of system, carries out conventional reactive current and harmonic wave Current Decomposition and calculates, and obtains total needsThe current value of compensation; Then the current value by the first digital signal processor unit, total needs being compensatedBe multiplied by penalty coefficient and control parameter, obtaining the current component that self need to compensate.
Above-mentioned penalty coefficient refers to:
Wherein, kiRepresent the penalty coefficient of i platform SVG equipment, or the penalty coefficient of APF equipment;SiRepresent the rated capacity of i platform SVG equipment, or the rated capacity of APF equipment; BiRepresent iThe running state information of platform SVG equipment, or the running state information of APF equipment; Wherein, i platformSVG equipment when operation, or when the operation of APF equipment, Bi=1; When i platform SVG equipment does not move,Or when APF equipment does not move, Bi=0。
As shown in Figure 7, be the control method of the disclosed a kind of SVG/APF parallel running of the embodiment of the present invention,Comprise:
Controller in controller or every APF equipment in S101, every SVG equipment, by electricityPressure transformer summation current transformer obtains respectively the voltage and current signal of electrical network, and according to the voltage of electrical networkDraw the current acquisition amount of control system with current signal;
Controller in controller or every APF equipment in S102, every SVG equipment, Xiang YuqiThe LAN connection device based on ethernet communication connecting sends the status information of self, and by based onThe LAN connection device of ethernet communication receives in the controller or APF equipment in other SVG equipmentController send status information;
Controller in S103, every SVG equipment or the controller in APF equipment, according to himselfStatus information, the controller in other SVG equipment receiving or the controller in APF equipment are sent outThe status information of sending, and the current acquisition amount of control system, automatically calculate and need the electric current of compensation to divideAmount, output needs the electric current of compensation.
In the above-described embodiments, the controller in every SVG equipment, or control in every APF equipmentDevice processed, obtains respectively the voltage and current signal of electrical network root by voltage transformer summation current transformerDraw the current acquisition amount of control system according to the voltage and current signal of electrical network.
Controller in every SVG equipment, or controller in every APF equipment, Xiang Yuqi connectsLAN connection device, send the status information of self, and receive other by LAN connection deviceController in SVG equipment, or the status information that sends of controller in other APF equipment, wherein,Described status information comprises tractor parameter, networking parameter and controls parameter.
Controller in SVG equipment, or controller in APF equipment according to the status information of self,Controller in other SVG equipment receiving, or the state letter that sends of controller in APF equipmentBreath, and the current acquisition amount of the control system drawing according to the voltage and current signal of the electrical network obtaining,Automatically calculate the current component that self need to compensate, output needs the electric current of compensation.
In the above-described embodiments, control system and the method for SVG equipment or the parallel running of APF equipment,Reduce SVG equipment or the requirement of APF equipment to real-time communication, realized each SVG in parallelThe failure tolerant of equipment or each APF equipment in parallel, has improved the reliability of equipment, and controls systemSystem only need just can complete by a set of current transformer and voltage transformer the compensate function of complete equipment, letterChange device hardware configuration, reached optimum compensation effect and utilization rate of equipment and installations.
Another embodiment of the present invention also discloses a kind of control method of SVG/APF parallel running, as figureShown in 8, comprising:
The first digital signal processor unit in S201, controller, by the electricity of analog data interfacePress the voltage and current signal of detection terminal and current detecting terminal collection electrical network, and according to the voltage of electrical networkDraw the current acquisition amount of control system with current signal;
The second digital signal processor unit in S202, controller sends self by Ethernet interfaceStatus information, and receive the status information of other controller by Ethernet interface;
The second digital signal processor unit in S203, controller is according to the status information of self and otherThe status information of controller, sets up the networking controller that comprises tractor parameter, networking parameter and control parameterParameter list;
The second digital signal processor unit in S204, controller is according to the networking controller parameter of setting upThe penalty coefficient of self is added up and calculated to table, and penalty coefficient and control parameter are passed through to field-programmableGate array unit is sent to the first digital signal processor unit;
S205, the first digital signal processor unit according to the penalty coefficient that receives, control parameter and beThe current acquisition amount of system calculates the current component that self need to compensate, and by the current component of needs compensationBe sent to field programmable gate array unit;
S206, field programmable gate array unit, according to the current component of the needs compensation receiving, carry outCurrent closed-loop compensation, output needs the electric current of compensation.
In the above-described embodiments, the first digital signal processor unit in controller, by analog quantity numberAccording to voltage detection terminal and the current detecting terminal of interface, gather the voltage and current signal of electrical network, according toThe voltage signal gathering and current signal draw the current acquisition amount of control system.
The second digital signal processor unit in controller by Ethernet interface unit to based on EthernetThe LAN connection device of communication sends the status information of self, and receives by Ethernet interface unit,The status information of other controller in LAN connection device based on ethernet communication, wherein, described shapeState information comprises complete machine nominal parameter, networking parameter and controls parameter.
The second digital signal processor unit in controller, according to the status information of self with receiveController in other SVG equipment, or the status information that sends of controller in other APF equipment,Foundation comprises tractor parameter, networking parameter and controls the networking controller parameter list of parameter.
The second digital signal processor unit is added up and is calculated certainly according to the networking controller parameter list of setting upThe bucking-out system of body, and penalty coefficient and control parameter are sent to by field programmable gate array unitThe first digital signal processor unit.
The first digital signal processor unit according to the penalty coefficient that receives, control parameter and according toThe current acquisition amount of the control system that the voltage signal gathering and current signal draw, calculates self needsThe current component of compensation, and the current component of needs compensation is sent to field programmable gate array unit.
Field programmable gate array unit, according to the current component of the needs compensation receiving, carries out electric current and closesRing compensation, output needs the electric current of compensation.
In above-mentioned steps 205, the first digital signal processor unit is according to the penalty coefficient, the control that receiveThe voltage and current calculated signals of parameter processed, electrical network go out the current component that self need to compensate can by withLower two kinds of modes:
First kind of way is first by the first digital signal processor unit, penalty coefficient, control to be joinedThe current acquisition amount of number and control system multiplies each other and obtains current component, then by the first Digital Signal ProcessingDevice unit, according to controlling target, carries out conventional reactive current and the calculating of harmonic wave Current Decomposition to current component,Obtain the current component that self need to compensate.
The second way is first to pass through the first digital signal processor unit according to controlling target and controlThe current acquisition amount of system, carries out conventional reactive current and harmonic wave Current Decomposition and calculates, and obtains total needsThe current value of compensation; Then the current value by the first digital signal processor unit, total needs being compensatedBe multiplied by penalty coefficient and control parameter, obtaining the current component that self need to compensate.
Above-mentioned penalty coefficient refers to:
Wherein, kiRepresent the penalty coefficient of i platform SVG equipment, or the penalty coefficient of APF equipment;SiRepresent the rated capacity of i platform SVG equipment, or the rated capacity of APF equipment; BiRepresent iThe running state information of platform SVG equipment, or the running state information of APF equipment; Wherein, i platformSVG equipment when operation, or when the operation of APF equipment, Bi=1; When i platform SVG equipment does not move,Or when APF equipment does not move, Bi=0。
In this description, each embodiment adopts the mode of going forward one by one to describe, and each embodiment stressesBe and the difference of other embodiment, between each embodiment identical similar part mutually referring to.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field can be realized or useThe present invention. To be aobvious and easy for those skilled in the art to the multiple amendment of these embodimentSee, General Principle as defined herein can be in the situation that not departing from the spirit or scope of the present invention,Realize in other embodiments. Therefore, the present invention will can not be restricted to these embodiment shown in this article,But to meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a control system for static reacance generator/Parallel Operation of Active, its feature existsIn, comprising:
Two or more static reacance generator equipment parallel with one another and that all comprise controller,Or two or more Active Power Filter-APF equipment parallel with one another and that all comprise controller;
Based on ethernet communication and with every static reacance generator equipment in controller, or with everyThe connected LAN connection device of controller in Active Power Filter-APF equipment;
Be placed on bus, and output simultaneously with described every static reacance generator equipment in controlDevice, or the voltage transformer being connected with the controller in described every Active Power Filter-APF equipment simultaneously;
Be placed on bus, and output seals in the control in described every static reacance transmitter device successivelyDevice processed, or seal in successively the current transformer of the controller in described every Active Power Filter-APF equipment.
2. control system according to claim 1, is characterized in that, described static reacance generatorController in equipment or Active Power Filter-APF equipment includes: the first digital signal processor unit,The second digital signal processor unit, field programmable gate array unit, analog data interface unit andEthernet interface unit; Wherein:
Described analog data interface unit is connected with described current transformer with described voltage transformer;
Described the first digital signal processor unit is connected with described analog data interface unit;
Described the first digital signal processor unit is connected with described the second digital signal processor unit;
Described the second digital signal processor unit is connected with described Ethernet interface unit;
Described the first digital signal processor unit and described the second digital signal processor unit respectively with instituteStating field programmable gate array unit is connected;
Described Ethernet interface unit is connected with described LAN connection device.
3. control system according to claim 2, is characterized in that, described analog data interfaceUnit comprises: voltage detection terminal and current detecting terminal; Wherein:
The output of described voltage transformer is in parallel with described voltage detection terminal;
The described current detecting terminal of output series connection access of described current transformer.
4. a control method for static reacance generator/Parallel Operation of Active, its feature existsIn, described control method is applied to the control system described in the claims 3, described control method bagDraw together:
Control in controller or Active Power Filter-APF equipment in every static reacance generator equipmentDevice, obtains respectively the voltage and current signal of electrical network by voltage transformer summation current transformer, and according toThe voltage and current signal of electrical network draws the current acquisition amount of described control system;
Control in controller or Active Power Filter-APF equipment in every static reacance generator equipmentDevice, sends the status information of self to connected LAN connection device, and passes through described LANConnection device receives controller or the Active Power Filter-APF equipment in other static reacance generator equipmentIn controller send status information;
Control in controller or Active Power Filter-APF equipment in every static reacance generator equipmentDevice, according to the status information of himself, the controller in other static reacance generator equipment receivingOr the status information that the controller in Active Power Filter-APF equipment sends, and described control systemCurrent acquisition amount, calculates the current component that needs compensation automatically, and output needs the electric current of compensation.
5. control method according to claim 4, is characterized in that, described every static reacance is sent outController in raw device equipment or the controller in every Active Power Filter-APF equipment, mutual by voltageSensor summation current transformer obtains respectively the voltage and current signal of electrical network, and according to the voltage of electrical network and electricityStream signal show that the step of the current acquisition amount of described control system is specially:
The first digital signal processor unit in controller, by the voltage detecting of analog data interfaceTerminal and current detecting terminal gather the voltage and current signal of electrical network, and according to the voltage and current of electrical networkSignal draws the current acquisition amount of described control system.
6. control method according to claim 4, is characterized in that, described every static reacance is sent outController in raw device equipment or the controller in every Active Power Filter-APF equipment, Xiang Yuqi connectsLAN connection device send self status information, and receive it by described LAN connection deviceController in controller or Active Power Filter-APF equipment in its static reacance generator equipment sendsThe step of status information be specially:
The second digital signal processor unit in controller sends the state letter of self by Ethernet interfaceCease, and receive the status information of other controller by Ethernet interface.
7. control method according to claim 4, is characterized in that, described every static reacance is sent outController in raw device equipment or the controller in Active Power Filter-APF equipment, according to the shape of himselfState information, controller or Active Power Filter-APF in other static reacance generator equipment receivingThe status information that controller in equipment sends, and the current acquisition amount of described control system, automatically meterCalculate the current component that needs compensation, output needs the step of the electric current of compensation to be specially:
The second digital signal processor unit in controller is according to the status information of self and other controllerStatus information, set up the networking controller parameter list that comprises tractor parameter, networking parameter and control parameter;
The second digital signal processor unit in controller is according to the described networking controller parameter list of setting upAdd up and calculate the penalty coefficient of self, and described penalty coefficient and control parameter can be compiled by sceneJourney gate array unit is sent to the first digital signal processor unit;
The first digital signal processor unit according to the described penalty coefficient that receives, control parameter and described inThe current acquisition amount of control system calculates the current component that self need to compensate, and by the electricity of needs compensationFlow point amount is sent to field programmable gate array unit;
Field programmable gate array unit, according to the current component of the needs compensation receiving, carries out electric current and closesRing compensation, output needs the electric current of compensation.
8. control method according to claim 7, is characterized in that, described the first data signal placeReason device unit is according to the current acquisition of the described penalty coefficient receiving, control parameter and described control systemThe step that amount calculates the current component that self need to compensate is specially:
The first digital signal processor unit is by described penalty coefficient, described control parameter and described control systemThe current acquisition amount of system multiplies each other and obtains current component;
The first digital signal processor unit, according to controlling target, carries out conventional reactive current to current componentCalculate with harmonic wave Current Decomposition, obtain the current component that self need to compensate.
9. control method according to claim 7, is characterized in that, described the first data signal placeReason device unit is according to the current acquisition of the described penalty coefficient receiving, control parameter and described control systemThe step that amount calculates the current component that self need to compensate is specially:
The first digital signal processor unit is according to the current acquisition amount of controlling target and described control system,Carry out conventional reactive current and harmonic wave Current Decomposition and calculate, obtain the current value of total needs compensation;
The first digital signal processor unit by the current value of total needs compensation be multiplied by described penalty coefficient andDescribed control parameter, obtains the current component that self need to compensate.
10. according to the control method described in any one in claim 7-9, it is characterized in that described benefitRepaying coefficient refers to:
Wherein, kiRepresent i platform static reacance generator equipment, or the benefit of Active Power Filter-APF equipmentRepay coefficient, SiRepresent i platform static reacance generator equipment, or Active Power Filter-APF equipment is specifiedCapacity, BiRepresent i platform static reacance generator equipment, or the operation shape of Active Power Filter-APF equipmentState information; Wherein, i platform static reacance generator equipment, or Active Power Filter-APF equipment when operation,Bi=1; I platform static reacance generator equipment, or Active Power Filter-APF equipment is not while moving, Bi=0。
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| CN104218584B (en) * | 2014-09-16 | 2016-04-06 | 东南大学 | A kind of active harmonic control device multi-machine parallel connection capacity optimum allocation method |
| CN105958491A (en) * | 2016-05-13 | 2016-09-21 | 四川英杰电气股份有限公司 | CAN bus based active power filter host-free parallel control method |
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| WO2007025726A1 (en) * | 2005-09-03 | 2007-03-08 | Bosch Rexroth Ag | Active network filter |
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