CN110350591B - Diesel generating set parallel operation system - Google Patents
Diesel generating set parallel operation system Download PDFInfo
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- CN110350591B CN110350591B CN201910668187.5A CN201910668187A CN110350591B CN 110350591 B CN110350591 B CN 110350591B CN 201910668187 A CN201910668187 A CN 201910668187A CN 110350591 B CN110350591 B CN 110350591B
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- 238000000034 method Methods 0.000 claims abstract description 27
- 238000005259 measurement Methods 0.000 claims description 24
- 238000001514 detection method Methods 0.000 claims description 20
- 230000001360 synchronised effect Effects 0.000 claims description 19
- 239000004973 liquid crystal related substance Substances 0.000 claims description 10
- 238000000819 phase cycle Methods 0.000 claims description 6
- 230000017525 heat dissipation Effects 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims description 3
- 230000002146 bilateral effect Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/32—Mounting of devices therein
- H02B1/34—Racks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/40—Synchronising a generator for connection to a network or to another generator
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/40—Synchronising a generator for connection to a network or to another generator
- H02J3/42—Synchronising a generator for connection to a network or to another generator with automatic parallel connection when synchronisation is achieved
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P2101/00—Special adaptation of control arrangements for generators
- H02P2101/25—Special adaptation of control arrangements for generators for combustion engines
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Control Of Eletrric Generators (AREA)
- Inverter Devices (AREA)
Abstract
The invention discloses a parallel operation system of a diesel generator set, which comprises a control cabinet body and a subsystem, wherein a front cabinet door and a rear cabinet door are respectively hinged to two sides of the control cabinet body, fixing grooves which are longitudinally arranged are fixed on the inner walls of the two sides of the control cabinet body, and a first mounting plate, a second mounting plate, a third mounting plate and a fourth mounting plate are arranged on the two sides of each fixing groove in a sliding manner. The invention solves the technical problem of inconvenient wiring in the control cabinet body in the prior art, controls the rectification module and the inverter power module to correspondingly adjust the voltage, frequency and phase parameters of the diesel generator through the control module, can not supply power to an electric appliance load until the parallel operation standard is met, simultaneously sends an instruction to the execution module by the central processing unit, controls the bus protection module by the execution module to prevent the bus of the generator set from generating faults in the voltage, frequency and phase parameter adjustment process, and solves the technical problem of unsuccessful parallel operation caused by unstable oil temperature and oil pressure when a new diesel generator is parallel operated in the prior art.
Description
Technical Field
The invention relates to the technical field of diesel generating sets, in particular to a parallel operation system of a diesel generating set.
Background
The diesel generator set uses a diesel engine as a prime mover to drive a synchronous generator to generate electricity, and is a power generation device which is quick in starting, convenient to operate and maintain, low in investment and strong in environmental adaptability.
Patent document (201610466506.0) discloses a diesel generator parallel control system, which reduces hardware such as a grid parameter detection module and two phase detection modules on a diesel generator controller, and changes a software control method accordingly, thereby reducing hardware cost and simplifying the control method on the premise of ensuring reliable operation of the system. However, the diesel generator parallel control system does not consider that the parallel operation is easy to fail due to the fact that voltage, frequency and phase parameters in the diesel generator are not matched in the parallel operation process of a new diesel generator, and meanwhile, the parallel operation is inconvenient in the wiring process.
Disclosure of Invention
The invention aims to provide a diesel generating set parallel operation system, which solves the following technical problems: (1) the first mounting plate, the third mounting plate and the fourth mounting plate which can be adjusted in height are arranged, so that the height of the mounting plates can be adjusted according to the length of an external wire in the control cabinet body, the situation that the wire cannot be connected due to the fact that the length of the external wire is insufficient or the wire is easy to wind due to the fact that the length of the external wire is too long is avoided, and the technical problem that wiring in the control cabinet body is inconvenient in the prior art is solved; (2) the control module controls the rectification module and the inverter power module to correspondingly adjust voltage, frequency and phase parameters of the diesel generator until parallel operation standards are met, power can be supplied to an electric appliance load, meanwhile, the central processing unit sends an instruction to the execution module, and the execution module controls the bus protection module to prevent a generator set bus from being out of order in the voltage, frequency and phase parameter adjustment process, so that the technical problem that parallel operation is unsuccessful due to unstable oil temperature and oil pressure when a new diesel generator is parallel operated in the prior art is solved.
The purpose of the invention can be realized by the following technical scheme:
a diesel generating set parallel operation system comprises a control cabinet body and a subsystem, wherein two sides of the control cabinet body are respectively hinged with a front cabinet door and a rear cabinet door, the inner walls of two sides of the control cabinet body are respectively fixed with a fixing groove which is longitudinally arranged, the two sides of the fixing groove are slidably provided with a first mounting plate, a second mounting plate, a third mounting plate and a fourth mounting plate, a plurality of power grid bus breakers are installed on the surface of the first mounting plate at equal intervals, an insulating terminal is fixedly installed above the power grid bus breakers, wire grooves are arranged on the outer sides of the power grid bus breakers and the insulating terminal, the wire grooves are fixed on the surface of the first mounting plate, a dehumidifier is fixed on the surface of the second mounting plate, a control switch is installed on the surface of the third mounting plate, four power generator bus breakers are installed on the surface of the fourth mounting plate at equal intervals, two heat dissipation fans are fixedly installed on the top wall of the control cabinet body, the system comprises a control cabinet body, a power supply, a subsystem and a power supply, wherein the bottom of an inner cavity of the control cabinet body is fixedly provided with the power supply, the two sides of the power supply are symmetrically provided with ventilation nets arranged on the side wall of the control cabinet body, the output end of the subsystem is electrically connected with an electrical load, the input end of the subsystem is electrically connected with a diesel engine generator, the output end of the subsystem is electrically connected with a generating set bus, the generating set bus is electrically connected with the electrical load, and the subsystem comprises a bus protection module, an execution module, a central processing unit, a data measurement module, a liquid crystal display module, a control module, a rectification module, an inverter power module and a synchronous detection module;
the input end of the bus protection module is electrically connected with the execution module, the input end of the execution module is electrically connected with the central processing unit, the central processing unit is used for receiving data information of the synchronous detection module and the data measurement module and analyzing and processing the data information, the synchronous detection module is used for detecting voltage, frequency, phase and phase sequence of the bus and reading network frequency and phase parameters on the detected bus into the central processing unit, the output end of the central processing unit is electrically connected with the control module, the control module is used for adjusting the parameters of the voltage, the frequency, the phase and the phase sequence of the diesel generator and sending parameter adjusting information to the rectification module, the output end of the rectification module is electrically connected with the inverter power module, the output end of the inverter power module is electrically connected with the synchronous detection module, and the inverter power module is used for controlling the output power of the bus generator set, the output end of the central processing unit is electrically connected with the liquid crystal display module, the input end of the central processing unit is electrically connected with the data measuring module, and the data measuring module is used for detecting the power, the oil temperature and the oil pressure of the diesel generator.
Furthermore, the rear cabinet door lateral surface is close to top position fixed mounting and has the measurement table group, the measurement table group is used for showing power, oil temperature and the oil pressure of data measurement module.
Furthermore, the dehumidifier and the input end of the subsystem are electrically connected with a power supply through wires.
Furthermore, the display screen is fixedly installed on the outer side wall of the front cabinet door close to the top, and the input end of the display screen is electrically connected with the liquid crystal display module through a wire.
Further, bolts are installed at four corners of the first installation plate, the second installation plate, the third installation plate and the fourth installation plate, and the bolts are locked with through holes formed in the surface of the fixing groove in a matched mode.
The control method of the control system comprises the following steps:
the method comprises the following steps: the diesel generator completes power supply to an electrical appliance load through the subsystem, and when a new diesel generator is added, the synchronous detection module detects voltage, frequency and phase information from the bus and reads the detected network frequency and phase parameters on the bus into the central processing unit;
step two: the central processing unit compares the voltage, frequency and phase parameters of the bus with the parameters of the diesel engine, the central processing unit sends an instruction to the control module when any one of the parameters is unqualified, and the control module controls the rectification module and the inverter power module to correspondingly adjust the voltage, frequency and phase parameters of the diesel generator until the parallel operation standard is met, so that power can be supplied to an electric appliance load;
step three: and meanwhile, the central processing unit sends an instruction to the execution module, the execution module controls the bus protection module to prevent the bus of the generator set from being out of order in the voltage, frequency and phase parameter adjustment process, the parallel operation process data measurement module sends oil temperature, oil temperature and oil pressure data of the diesel generator to the central processing unit, and the central processing unit respectively displays the oil temperature, the oil temperature and the oil pressure data of the diesel generator through the display screen and the measurement gauge set.
The invention has the beneficial effects that:
(1) according to the diesel generating set parallel operation system, the first mounting plate, the third mounting plate and the fourth mounting plate are adjusted and slid according to the length of an external lead, the first mounting plate, the third mounting plate and the fourth mounting plate are fixed with the fixing groove through bolts after adjustment is finished, external leads are respectively connected into a power grid bus circuit breaker, a control switch, a generator bus circuit breaker, a display screen and a measuring meter set, redundant leads pass through an insulating terminal and a wire groove to be wound, a front cabinet door is closed, and lead arrangement is finished. The parallel operation system has the advantages that through the arrangement of the first mounting plate, the third mounting plate and the fourth mounting plate which can be adjusted in height, the height of the mounting plates can be adjusted according to the length of an external wire in the control cabinet body, the situation that the wire cannot be wired due to the fact that the length of the external wire is insufficient or the wire is easy to wind due to the fact that the length of the external wire is too long is avoided, meanwhile, the insulating terminal and the wire groove are arranged, so that the wire can be fixed, and the wire is prevented from being wound in the wiring process;
(2) the power supply of the electrical appliance load is completed through the parallel operation system of the diesel generator, when a new diesel generator is added, the synchronous detection module detects the voltage, frequency and phase information from the bus, the detected network frequency and phase parameters on the bus are read into the central processing unit, the central processing unit compares the voltage, frequency and phase parameters of the bus with the parameters of the diesel engine, the central processing unit which has unqualified any parameter sends an instruction to the control module, the control module controls the rectification module and the inverter power module to correspondingly adjust the voltage, frequency and phase parameters of the diesel generator until the parallel operation standard is met, the central processing unit can not supply power to the electrical appliance load, meanwhile, the central processing unit sends an instruction to the execution module, and the execution module controls the bus protection module to prevent the bus generator set from generating faults in the voltage, frequency and phase parameter adjustment process, the data measurement module sends oil temperature, oil temperature and oil pressure data of the diesel generator to the central processing unit in the parallel operation process, and the central processing unit respectively displays the oil temperature and the oil pressure data of the diesel generator through the display screen and the measurement gauge set. The voltage and the frequency of the diesel generator are adjusted in time when the new diesel generator set is added in the working process of the parallel operation system, so that the new diesel generator can quickly meet parallel operation conditions, and the parallel operation process is safer and more efficient.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic structural diagram of a parallel operation system of a diesel generator set;
FIG. 2 is a front elevational view of the present invention with the front cabinet door removed;
FIG. 3 is a rear view of the present invention with the rear cabinet door removed;
FIG. 4 is a schematic view of a rear cabinet door according to the present invention;
fig. 5 is a system block diagram of the parallel machine system of the present invention.
In the figure: 1. a control cabinet body; 2. a front cabinet door; 3. a rear cabinet door; 4. fixing grooves; 5. a first mounting plate; 51. a grid bus breaker; 6. a wire slot; 61. an insulated terminal; 7. a dehumidifier; 8. a second mounting plate; 9. a third mounting plate; 91. a control switch; 10. a generator bus breaker; 11. a fourth mounting plate; 12. a display screen; 13. a heat dissipation fan; 14. a ventilation net; 15. a measurement table group; 16. a power source; 17. a subsystem; 18. an electrical load; 19. a generator set bus; 20. a bus protection module; 21. an execution module; 22. a central processing unit; 23. a data measurement module; 24. a liquid crystal display module; 25. a control module; 26. a rectification module; 27. an inverter power module; 28. a synchronous detection module; 29. a diesel generator.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the invention is a parallel operation system of a diesel generator set, comprising a control cabinet 1 and a subsystem 17, wherein two sides of the control cabinet 1 are respectively hinged with a front cabinet door 2 and a rear cabinet door 3, and the inner walls of two sides of the control cabinet 1 are respectively fixed with a fixing groove 4 which is longitudinally arranged, two sides of the fixing groove 4 are slidably provided with a first mounting plate 5, a second mounting plate 8, a third mounting plate 9 and a fourth mounting plate 11, a plurality of grid bus breakers 51 are equidistantly installed on the surface of the first mounting plate 5, an insulating terminal 61 is fixedly installed above the grid bus breakers 51, a wire casing 6 is arranged outside the grid bus breakers 51 and the insulating terminal 61, the wire casing 6 is fixed on the surface of the first mounting plate 5, a dehumidifier 7 is fixed on the surface of the second mounting plate 8, a control switch 91 is installed on the surface of the third mounting plate 9, four generator bus breakers 10 are equidistantly installed on the surface of the fourth mounting plate 11, the top wall of the control cabinet body 1 is fixedly provided with two heat dissipation fans 13, the bottom of the inner cavity of the control cabinet body 1 is fixedly provided with a power supply 16, two sides of the power supply 16 are symmetrically provided with ventilating nets 14 arranged on the side wall of the control cabinet body 1, the output end of a subsystem 17 is electrically connected with an electrical load 18, the input end of the subsystem 17 is electrically connected with a diesel engine generator 29, the output end of the subsystem 17 is electrically connected with a generator set bus 19, the generator set bus 19 is electrically connected with the electrical load 18, and the subsystem 17 comprises a bus protection module 20, an execution module 21, a central processing unit 22, a data measurement module 23, a liquid crystal display module 24, a control module 25, a rectification module 26, an inverter power module 27 and a synchronous detection module 28;
the input end of the bus protection module 20 is electrically connected with the execution module 21, the input end of the execution module 21 is electrically connected with the central processor 22, the central processor 22 is used for receiving the data information of the synchronous detection module 28 and the data measurement module 23 and analyzing and processing the data information, the synchronous detection module 28 is used for detecting the voltage, the frequency, the phase and the phase sequence of the bus, then reading the detected network frequency and phase parameters on the bus into the central processor 22, the output end of the central processor 22 is electrically connected with the control module 25, the control module 25 is used for adjusting the voltage, the frequency, the phase and the phase sequence of the diesel generator 29 and sending the parameter adjustment information to the rectification module 26, the output end of the rectification module 26 is electrically connected with the inverter power module 27, the output end of the inverter power module 27 is electrically connected with the synchronous detection module 28, and the inverter power module 27 is used for controlling the output power of the generator set bus 19, the output end of the central processing unit 22 is electrically connected with the liquid crystal display module 24, the input end of the central processing unit 22 is electrically connected with the data measuring module 23, and the data measuring module 23 is used for detecting the power, the oil temperature and the oil pressure of the diesel generator 29.
Specifically, a measurement meter group 15 is fixedly mounted on the outer side surface of the rear cabinet door 3 close to the top, and the measurement meter group 15 is used for displaying the power, the oil temperature and the oil pressure of the data measurement module 23. The input ends of the dehumidifier 7 and the subsystem 17 are electrically connected with the power supply 16 through wires. The outer side wall of the front cabinet door 2 is fixedly provided with a display screen 12 close to the top, and the input end of the display screen 12 is electrically connected with the liquid crystal display module 24 through a wire. Bolts are installed at four corners of the first installation plate 5, the second installation plate 8, the third installation plate 9 and the fourth installation plate 11, and the bolts are locked with through holes formed in the surface of the fixing groove 4 in a matched mode. The control method of the control system comprises the following steps:
the method comprises the following steps: the diesel generator 29 completes power supply to the electrical load 18 through the subsystem 17, and when a new diesel generator 29 is added, the synchronous detection module 28 detects voltage, frequency and phase information from the bus and reads the detected network frequency and phase parameters on the bus into the central processing unit 22;
step two: the central processing unit 22 compares the voltage, frequency and phase parameters of the bus with the parameters of the diesel engine, the central processing unit 22 sends an instruction to the control module 25 when any one of the parameters is unqualified, and the control module 25 controls the rectification module 26 and the inverter power module 27 to correspondingly adjust the voltage, frequency and phase parameters of the diesel generator 29 until the parallel operation standard is met, so that power can not be supplied to the electrical load 18;
step three: meanwhile, the central processing unit 22 sends an instruction to the execution module 21, the execution module 21 controls the bus protection module 20 to prevent the generator set bus 19 from being out of order in the voltage, frequency and phase parameter adjusting process, the data measurement module 23 sends oil temperature, oil temperature and oil pressure data of the diesel generator 29 to the central processing unit 22 in the parallel operation process, and the central processing unit 22 respectively displays the oil temperature, the oil temperature and the oil pressure data of the diesel generator 29 through the display screen 12 and the measurement gauge set 15.
Referring to fig. 1-5, the wire layout and working process of the parallel operation system of the diesel generator set of the present embodiment are as follows:
the method comprises the following steps: the front cabinet door 2 is opened, the first mounting plate 5, the third mounting plate 9 and the fourth mounting plate 11 are adjusted and slid according to the length of an external lead, the first mounting plate 5, the third mounting plate 9, the fourth mounting plate 11 and the fixing groove 4 are fixed through bolts after adjustment is finished, external leads are respectively connected into the power grid bus circuit breaker 51, the control switch 91, the generator bus circuit breaker 10, the display screen 12 and the measuring meter group 15, redundant leads pass through the insulating terminal 61 and the wire groove 6 to be wound, the front cabinet door 2 is closed, and lead arrangement is finished;
step two: the diesel generator 29 completes power supply to the electrical load 18 through the parallel system 17, when a new diesel generator 29 is added, the synchronous detection module 28 detects voltage, frequency and phase information from the bus, the detected network frequency and phase parameters on the bus are read into the central processor 22, the central processor 22 compares the voltage, frequency and phase parameters of the bus with the diesel engine parameters, the central processor 22 with unqualified any parameter sends an instruction to the control module 25, the control module 25 controls the rectification module 26 and the inverter power module 27 to correspondingly adjust the voltage, frequency and phase parameters of the diesel generator 29 until the parallel standard is met, the electrical load 18 can not be supplied, meanwhile, the central processor 22 sends an instruction to the execution module 21, and the execution module 21 controls the bus protection module 20 to prevent voltage, frequency, phase and phase parameters, The generator set bus 19 has a fault in the phase parameter adjusting process, the data measuring module 23 sends the oil temperature, the oil temperature and the oil pressure data of the diesel generator 29 to the central processor 22 in the parallel operation process, and the central processor 22 respectively displays the oil temperature, the oil temperature and the oil pressure data of the diesel generator 29 through the display screen 12 and the measuring gauge set 15.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
Claims (1)
1. The utility model provides a diesel generating set parallel operation system, includes the control cabinet body (1) and subsystem (17), its characterized in that, the both sides of the control cabinet body (1) are equallyd divide and are articulated respectively have preceding cabinet door (2), back cabinet door (3), just the inner wall all is fixed with vertical fixed slot (4) that set up in the both sides of the control cabinet body (1), fixed slot (4) both sides are slided and are provided with first mounting panel (5), second mounting panel (8), third mounting panel (9), fourth mounting panel (11), a plurality of electric wire netting generating line circuit breakers (51) are installed to first mounting panel (5) surface equidistance, fixed mounting has insulating terminal (61) above electric wire netting generating line circuit breaker (51), electric wire netting generating line circuit breaker (51) and insulating terminal (61) outside are provided with wire casing (6), wire casing (6) are fixed in first mounting panel (5) surface, second mounting panel (8) fixed surface has dehumidifier (7), third mounting panel (9) surface mounting has control switch (91), fourth mounting panel (11) surface mounting has four generator bus circuit breakers (10) that the equidistance set up, control cabinet body (1) roof fixed mounting has two heat dissipation fans (13), control cabinet body (1) inner chamber bottom fixed mounting has power (16), power (16) bilateral symmetry is provided with ventilation net (14) of installing in control cabinet body (1) lateral wall, subsystem (17) output electric connection has electrical load (18), and its input electric connection has diesel generator (29), subsystem (17) output electric connection has generating set (19), generating set bus (19) electric connection electrical load (18), subsystem (17) include bus protection module (20), The device comprises an execution module (21), a central processing unit (22), a data measurement module (23), a liquid crystal display module (24), a control module (25), a rectification module (26), an inverter power module (27) and a synchronous detection module (28);
the bus protection device is characterized in that the input end of the bus protection module (20) is electrically connected with an execution module (21), the input end of the execution module (21) is electrically connected with a central processing unit (22), the central processing unit (22) is used for receiving data information of a synchronous detection module (28) and a data measurement module (23) and analyzing and processing the data information, the synchronous detection module (28) is used for detecting voltage, frequency, phase and phase sequence of a bus, then network frequency and phase parameters on the detected bus are read into the central processing unit (22), the output end of the central processing unit (22) is electrically connected with a control module (25), the control module (25) is used for adjusting the parameters of voltage, frequency, phase and phase sequence of a diesel generator (29) and sending parameter adjustment information to a rectification module (26), and the output end of the rectification module (26) is electrically connected with an inverter power module (27), the output end of the inverter power module (27) is electrically connected with the synchronous detection module (28), the inverter power module (27) is used for controlling the output power of the generating set bus (19), the output end of the central processing unit (22) is electrically connected with the liquid crystal display module (24), the input end of the central processing unit (22) is electrically connected with the data measurement module (23), and the data measurement module (23) is used for detecting the power, the oil temperature and the oil pressure of the diesel generator (29);
a measuring meter group (15) is fixedly mounted on the outer side surface of the rear cabinet door (3) close to the top, and the measuring meter group (15) is used for displaying the power, the oil temperature and the oil pressure of the data measuring module (23);
the input ends of the dehumidifier (7) and the subsystem (17) are electrically connected with a power supply (16) through leads;
a display screen (12) is fixedly arranged on the outer side wall of the front cabinet door (2) close to the top, and the input end of the display screen (12) is electrically connected with a liquid crystal display module (24) through a lead;
bolts are arranged at the four corners of the first mounting plate (5), the second mounting plate (8), the third mounting plate (9) and the fourth mounting plate (11), and are matched and locked with through holes formed in the surface of the fixing groove (4);
the control method of the parallel machine system comprises the following steps:
the method comprises the following steps: the diesel generator (29) completes power supply to the electrical load (18) through the subsystem (17), and when a new diesel generator (29) is added, the synchronous detection module (28) detects voltage, frequency and phase information from the bus and reads the detected network frequency and phase parameters on the bus into the central processing unit (22);
step two: the central processing unit (22) compares the voltage, frequency and phase parameters of the bus with the parameters of the diesel engine, the central processing unit (22) which has unqualified any parameter sends an instruction to the control module (25), and the control module (25) controls the rectification module (26) and the inverter power module (27) to correspondingly adjust the voltage, frequency and phase parameters of the diesel generator (29) until the parallel operation standard is met, and then the electric appliance load (18) can not be supplied with power;
step three: meanwhile, the central processing unit (22) sends an instruction to the execution module (21), the execution module (21) controls the bus protection module (20) to prevent the generator set bus (19) from generating faults in the voltage, frequency and phase parameter adjusting process, the data measurement module (23) sends power, oil temperature and oil pressure data of the diesel generator (29) to the central processing unit (22) in the parallel operation process, and the central processing unit (22) respectively displays the power, the oil temperature and the oil pressure data of the diesel generator (29) through the display screen (12) and the measurement gauge set (15).
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| CN201910668187.5A CN110350591B (en) | 2019-07-23 | 2019-07-23 | Diesel generating set parallel operation system |
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| CN201910668187.5A CN110350591B (en) | 2019-07-23 | 2019-07-23 | Diesel generating set parallel operation system |
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| CN110350591B true CN110350591B (en) | 2021-08-03 |
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| CN111509786B (en) * | 2020-04-29 | 2021-08-17 | 合肥康尔信电力系统有限公司 | Parallel operation and parallel operation control system of diesel generating set |
| CN111509779B (en) * | 2020-04-29 | 2021-09-07 | 合肥康尔信电力系统有限公司 | Parallel bus multi-output power supply and switching control system of diesel generating set |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105978028A (en) * | 2016-06-23 | 2016-09-28 | 太原理工大学 | Diesel generator parallel control system |
| CN208656427U (en) * | 2018-08-01 | 2019-03-26 | 天津润亨动力科技股份有限公司 | A kind of diesel generating set and cabinet |
| CN208797594U (en) * | 2018-04-10 | 2019-04-26 | 浙江幸福航天科技有限公司 | Diesel generating set parallel connection device and system |
| CN208874166U (en) * | 2018-10-22 | 2019-05-17 | 中国石油集团济柴动力有限公司再制造分公司 | A kind of mobile power station generating set control screen |
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2019
- 2019-07-23 CN CN201910668187.5A patent/CN110350591B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105978028A (en) * | 2016-06-23 | 2016-09-28 | 太原理工大学 | Diesel generator parallel control system |
| CN208797594U (en) * | 2018-04-10 | 2019-04-26 | 浙江幸福航天科技有限公司 | Diesel generating set parallel connection device and system |
| CN208656427U (en) * | 2018-08-01 | 2019-03-26 | 天津润亨动力科技股份有限公司 | A kind of diesel generating set and cabinet |
| CN208874166U (en) * | 2018-10-22 | 2019-05-17 | 中国石油集团济柴动力有限公司再制造分公司 | A kind of mobile power station generating set control screen |
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