CN103236800A - Novel topological structure voltage source type inverter and adjusting method - Google Patents

Novel topological structure voltage source type inverter and adjusting method Download PDF

Info

Publication number
CN103236800A
CN103236800A CN2013101773939A CN201310177393A CN103236800A CN 103236800 A CN103236800 A CN 103236800A CN 2013101773939 A CN2013101773939 A CN 2013101773939A CN 201310177393 A CN201310177393 A CN 201310177393A CN 103236800 A CN103236800 A CN 103236800A
Authority
CN
China
Prior art keywords
inverter
component
phase
centerdot
idle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN2013101773939A
Other languages
Chinese (zh)
Other versions
CN103236800B (en
Inventor
查晓明
李尚盛
宫金武
戴喜良
孙建军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan University WHU
Original Assignee
Wuhan University WHU
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhan University WHU filed Critical Wuhan University WHU
Priority to CN201310177393.9A priority Critical patent/CN103236800B/en
Publication of CN103236800A publication Critical patent/CN103236800A/en
Application granted granted Critical
Publication of CN103236800B publication Critical patent/CN103236800B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The invention relates to a novel topological structure voltage source type inverter and an adjusting method. The structure is a star-like topological structure and is formed by connecting a three-phase bridge type inverter in series at a neutral point of cascaded inverters connected in a star shape. Compared with the conventional cascaded inverters connected in the star shape, the novel topological structure theoretically has a function of completely compensating negative sequence current; and compared with the conventional three-phase bridge type inverter, the novel topological structure can realize extended application under high voltage level without using a device cascade or MMC (Multilevel Converter) structure. In the novel topological structure, a direct current side of the three-phase bridge type inverter can be connected with a direct current network, energy storage equipment or a power grid through a current transformer; the inverter can be widely applied to the fields of flexible direct current power transmission, new energy connection, high voltage frequency converter and the like; and the application prospect of the voltage source type inverter in the corresponding field is expanded. The novel topological structure has good generalization performance based on mature unit cascade and three-phase inverter structure and control technology.

Description

A kind of new topological structure voltage source inverter and control method
Technical field
The present invention relates to a kind of voltage source inverter and control method, especially relate to a kind of new topological structure voltage source inverter and control method.
Background technology
Along with power system development, power quality problem more and more causes people's attention.Based on the voltage source inverter of full-control type device, with its response speed and superior compensation performance fast, more and more used in fields such as power system reactive power compensation, electric machine speed regulation, direct current transportation.
The main topological structure of voltage source inverter has following two kinds at present:
First kind is the three-phase bridge structure.The three-phase bridge structure can realize functions such as positive sequence reactive power compensation, negative-sequence current compensation, harmonic compensation and meritorious adjusting easily, but is subject to topological structure and device parameters, and it is used and also has significant limitation.The most basic three-phase bridge structure is the three-phase half-bridge structure, and it has structure and control is simple, designs advantages such as easy, but the harmonic content of output is higher relatively, and is subjected to the restriction of device voltage withstand class, is used for the occasion of low-pressure reactive compensation more.In order further to widen the range of application of three-phase bridge structure, technology such as the many level of diode clamp, the many level of striding capacitance, device series connection, MMC have successively appearred.Wherein, the many level of diode clamp, the many level of striding capacitance are owing to the topological structure complexity, and level number and practical electric pressure have certain restriction; Device series connection and MMC technology have solved the problem that inverter under high pressure moves well, and wherein the MMC technology also can realize the function of many level simultaneously, but both control is complicated, only is applied in the minority engineering.
Second kind is the cascade connection type structure.The cascade connection type structure is based on the cascaded structure of single-phase full bridge module, on the basis that does not increase the individual unit design level, has realized inverter application under high pressure.This structure proposes in electrical converter, has become the main flow topological structure of mesohigh STATCOM, electrical converter at present.The cascade connection type structure can be divided into the cascaded inverter of triangle connection and Y-connection again according to different connected modes.Both do not have difference substantially on the idle compensation effect of positive sequence; Aspect the negative-sequence current compensation, the triangle syndeton in theory can the full remuneration unsymmetrical current, and the Y-connection structure can only guarantee the uneven stable operation of self down, can't accomplish to compensate completely; Aspect harmonic compensation, the inverter of Y-connection is simpler in control.
Summary of the invention
Above-mentioned technical problem of the present invention is mainly solved by following technical proposals:
A kind of new topological structure voltage source inverter is characterized in that, comprises based on the inverter of single-phase bridge cascade structure and based on the inverter of three-phase bridge structure; Described inverter based on the single-phase bridge cascade structure is three-phase, and the three-phase cascaded inverter inserts three-phase bridge structure inverter simultaneously and connects into star structure at the neutral point place; Or three-phase bridge structure inverter is positioned at the neutral point of three-phase cascaded inverter.
In above-mentioned a kind of new topological structure voltage source inverter, each constitutes the inverter of cascade structure by N H bridge is unit cascaded, and its DC side can only connect electric capacity or connect DC network or by current transformer incoming transport network.
In above-mentioned a kind of new topological structure voltage source inverter, the inverter of described three-phase bridge structure adopts three-phase half-bridge structure formula inverter or three phase full bridge structural formula inverter or many level of diode clamp structural formula inverter or many level of striding capacitance structural formula inverter or device cascaded structure formula inverter or many level of module combinations structural formula inverter.
In above-mentioned a kind of new topological structure voltage source inverter, the DC side of the inverter of described three-phase bridge structure can only connect electric capacity or connect DC network or pass through current transformer incoming transport network.
The present invention is in conjunction with two kinds of inverters of cascade connection type of three-phase bridge and Y-connection, a kind of new voltage source inverter topological structure of creationary proposition, this structure had both had the wide characteristics of three-phase bridge compensation range, had the high advantage of cascaded inverter applied voltage grade again.Topological classification and the application prospect of voltage source inverter have been enriched in the proposition of this topological structure.
A kind of control method based on new topological structure voltage source inverter is characterized in that, comprises following control method:
Control method one: cascaded inverter and three-phase bridge inverter direct-flow side only connect dc capacitor, finish idle and full remuneration negative-sequence current, and concrete steps are:
Step 1: under the stable state, the inverter voltage drop that connects in the reactance of being incorporated into the power networks is used
Figure BDA00003189081500033
Expression can be decomposed into positive sequence component With negative sequence component
Figure BDA00003189081500035
, the inverter output current is used
Figure BDA00003189081500036
Expression can be decomposed into the positive sequence idle component
Figure BDA00003189081500037
With negative sequence component
Figure BDA00003189081500038
Wherein:
Figure BDA00003189081500039
With access point place voltage
Figure BDA000031890815000310
Phase place is identical, is used for the positive sequence reactive current of bucking-out system;
Figure BDA000031890815000311
Be used for the negative-sequence current of bucking-out system; According to the reactor characteristic, the positive sequence voltage component Leading forward-order current component 90 ° in phase place, the negative sequence voltage component Leading negative-sequence current component 90 ° in phase place;
Step 2: for cascaded inverter, can stable operation for guaranteeing it, its output voltage Must and output current
Figure BDA000031890815000317
Become 90 ° phase relation, then be decomposed into positive sequence component
Figure BDA000031890815000318
With negative sequence component
Figure BDA000031890815000319
For three-phase bridge type converter, under stable state, its output voltage
Figure BDA000031890815000320
With output current
Figure BDA000031890815000321
Between phase relation adjustable, can be decomposed into positive sequence component equally With negative sequence component
Step 3: in the realization of idle and negative sequence component, the main principle that need follow:
U · L + = U · S - U · 1 + - U · 2 +
U · L - = - ( U · 1 - + U · 2 - )
Therefore, can realize the reasonable distribution that bridge architecture and cascade structure contravarianter voltage are exported with the negative phase-sequence instruction current according to idle, thus the control device output current
Figure BDA000031890815000324
, to reach idle and full remuneration negative sequence component.
Control method two: the cascaded inverter DC side only connects electric capacity, and three-phase bridge type converter is by current transformer incoming transport electrical network, and can realize meritorious and idle adjusting this moment, and concrete steps are:
Step 1: under the stable state, the inverter voltage drop that connects in the reactance of being incorporated into the power networks is used
Figure BDA00003189081500043
Expression can be decomposed into real component
Figure BDA00003189081500044
With idle component
Figure BDA00003189081500045
Wherein:
Figure BDA000031890815000425
With access point place voltage
Figure BDA00003189081500047
Phase place is identical, is used for regulating idle output;
Figure BDA00003189081500048
Be used for regulating meritorious output, output current is used
Figure BDA00003189081500049
Expression can be decomposed into real component
Figure BDA000031890815000410
With idle component
Figure BDA000031890815000411
, according to the reactor characteristic, the voltage real component
Figure BDA000031890815000412
The leading current real component
Figure BDA000031890815000413
90 ° in phase place, the voltage power-less component
Figure BDA000031890815000414
The leading current idle component
Figure BDA000031890815000415
90 ° in phase place;
Step 2: for cascade structure, can stable operation for guaranteeing it, its output voltage
Figure BDA000031890815000416
Must and output current
Figure BDA000031890815000417
Become 90 ° phase relation, then be decomposed into real component With idle component
Figure BDA000031890815000419
For three-phase bridge type converter, under stable state, its output voltage
Figure BDA000031890815000420
With output current
Figure BDA000031890815000421
Between phase relation adjustable, can be decomposed into real component equally
Figure BDA000031890815000422
With idle component
Step 3: in the realization of meritorious and idle component, the main principle that need follow:
U · Lq = U · s - U · 1 q - U · 2 q
U · Lp = - ( U · 1 p + U · 2 p )
Therefore, can realize the reasonable distribution that bridge architecture and cascade structure contravarianter voltage are exported with idle instruction current according to meritorious, thus the control device output current
Figure BDA000031890815000424
, to reach the adjusting of meritorious and idle component.
Therefore, the present invention has following advantage: can realize the expanded application under the voltage levels 1.; 2. in the new topological structure, the three-phase bridge type converter DC side can insert DC network, energy storage device or insert electrical network by current transformer, can be widely used in fields such as flexible DC power transmission, new forms of energy access, high voltage converter, widen the application prospect of voltage source inverter in corresponding field.New topological structure has good generalization based on structure and the control technology of unit cascaded, the three-phase inverter of maturation.
Description of drawings
Fig. 1 is the structure chart of patent of the present invention.
Fig. 2 is the cascaded inverter structure chart of patent of the present invention.
Fig. 3 a is the three-phase bridge type converter structure chart (three-phase half-bridge structure formula inverter) of patent of the present invention.
Fig. 3 b is the three-phase bridge type converter structure chart (three phase full bridge structural formula inverter) of patent of the present invention.
Fig. 3 c is the three-phase bridge type converter structure chart (many level of diode clamp structural formula inverter) of patent of the present invention.
Fig. 3 d is the three-phase bridge type converter structure chart (many level of striding capacitance structural formula inverter) of patent of the present invention.
Fig. 3 e is the three-phase bridge type converter structure chart (device cascaded structure formula inverter) of patent of the present invention.
Fig. 3 f is the three-phase bridge type converter structure chart (many level of module combinations structural formula inverter) of patent of the present invention.
Fig. 4 is the structure chart of patent of the present invention when being applied to meritorious the adjusting.
Fig. 5 is the fundamental diagram of patent of the present invention when being applied to the compensation of fundamental wave reactive power and negative-sequence current.
Fig. 6 is the fundamental diagram of patent of the present invention when being applied to meritorious and idle the adjusting.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment:
Below structure and the operation principle of patent of the present invention just are described by reference to the accompanying drawings.
1. the composition of new voltage source inverter topological structure.
Referring to Fig. 1, the voltage source inverter topology diagram for new is characterized in that: on the cascaded inverter basis of Y-connection, the neutral point place inserts three-phase bridge type converter.Whole device inserts electrical network by connecting reactance.For the ease of analysis afterwards, in each amount and reference directions thereof such as this device specifies electric current, line voltage, connection reactance voltage, device output voltages.This topological structure combines the advantage of cascade connection type structure and bridge architecture: when DC side only connects capacitor, possess the compensation ability of idle, harmonic wave and negative-sequence current, and can work under the electric pressure conditions of higher; When DC side inserts DC network or passes through current transformer incoming transport network, can realize the adjusting of active power.
2. the composition of cascaded inverter structure.
Referring to Fig. 2, be the cascaded inverter structure chart.Its each basic the H bridge is unit cascaded forms by N, and three-phase adopts star-like connected mode, outlet a, b, c respectively with the u of three-phase bridge type converter output a, u b, u cThree-phase links to each other.By certain modulation technique, can make its output harmonic wave content less, the waveform that switching frequency is higher, but because the self structure restriction, it does not possess the ability of full remuneration negative-sequence current.
3. the composition of three-phase bridge type converter structure.
Referring to Fig. 3 a to Fig. 3 f, be the various forms of structure charts of three-phase bridge type converter.Wherein comprise multiple versions such as three-phase half-bridge, three phase full bridge, the many level of diode clamp, the many level of striding capacitance, device series connection, MMC.Figure (3-a) is basic three-phase half-bridge inverter, is made up of three basic single-phase semi-bridge unit; Figure (3-b) is three-phase full-bridge inverter, is made up of three single-phase full bridge unit; Figure (3-c) is diode clamp type three-level inverter, mainly is to have increased diode clamping circuit in basic three-phase bridge structure, thereby has realized many level outputs; Figure (3-d) is the striding capacitance three-level inverter, mainly is to have increased capacitive branch at each brachium pontis, utilizes discharging and recharging of electric capacity can realize many level outputs; Figure (3-e) is device tandem type structure, and wherein each unit is composed in series by several switching devices respectively, can effectively improve the capacity of device output; Figure (3-f) is MMC type inverter, and its each elementary cell is the single-phase semi-bridge inversion device, can improve device electric pressure and output level number.The u of every kind of structure output a, u b, u cThree-phase voltage links to each other with a, b, the c three-phase of cascade structure output respectively, thereby is built into new topological structure.
4. the composition when new voltage source inverter is applied to meritorious the adjusting.
Referring to Fig. 4, the composition when being applied to meritorious the adjusting for new voltage source inverter.The cascaded inverter DC side only connects electric capacity, and the three-phase bridge inverter is by current transformer incoming transport electrical network.Its characteristics are, can be according to the flexible combination of cascade connection type module and three-phase bridge module, realize interconnected between the AC network of different electric pressures.
5. the idle realization that compensates with negative-sequence current.
Referring to Fig. 5, the phasor diagram when being used for fundamental wave reactive power and negative sequence compensation for new voltage source inverter under the stable state is reference frame with the positive sequence component, and negative sequence component rotates with the twice rated frequency clockwise in this coordinate system lower edge.
The ground that is without loss of generality, this phasor diagram obtains under following two assumed conditions:
(1) ignores device and circuit active loss, namely suppose all resistance R=0;
(2) after the negative-sequence current full remuneration, only there is positive sequence component in the system voltage.
Under the stable state, the inverter voltage drop that connects in the reactance of being incorporated into the power networks is used
Figure BDA00003189081500071
Expression can be decomposed into positive sequence component
Figure BDA00003189081500072
With negative sequence component Output current is used
Figure BDA00003189081500074
Expression can be decomposed into positive sequence component
Figure BDA00003189081500075
With negative sequence component
Figure BDA00003189081500076
Wherein:
Figure BDA00003189081500077
With access point place voltage Phase place is identical, is used for the positive sequence reactive current of bucking-out system;
Figure BDA00003189081500079
Be used for the negative-sequence current of bucking-out system.According to the reactor characteristic, the positive sequence voltage component
Figure BDA000031890815000710
Leading forward-order current component
Figure BDA000031890815000711
90 ° in phase place, the negative sequence voltage component
Figure BDA000031890815000712
Leading negative-sequence current component
Figure BDA000031890815000723
90 ° in phase place.
For cascade structure, can stable operation for guaranteeing it, its output voltage
Figure BDA000031890815000713
Must and output current
Figure BDA000031890815000714
Become 90 ° phase relation, can be decomposed into positive sequence component With negative sequence component
Figure BDA000031890815000716
For three-phase bridge type converter, under stable state, its output voltage
Figure BDA000031890815000717
With output current
Figure BDA000031890815000718
Between phase relation adjustable, can be decomposed into positive sequence component equally
Figure BDA000031890815000719
With negative sequence component
Figure BDA000031890815000720
In the realization of idle and negative sequence component, the main principle that need follow:
U · L + = U · S - U · 1 + - U · 2 +
U · L - = - ( U · 1 - + U · 2 - )
Therefore, can realize the reasonable distribution that bridge architecture and cascade structure contravarianter voltage are exported with the negative phase-sequence instruction current according to idle, thus the control device output current
Figure BDA00003189081500081
, to reach idle and full remuneration negative sequence component.
6. the realization of idle and meritorious adjusting.
Referring to Fig. 6, when being used for fundamental wave reactive power with meritorious the adjusting for new voltage source inverter, the phasor diagram under the stable state.Only consider on the topology that the three-phase bridge DC side is connected to the situation in merit source, cascade connection type unit DC side direct capacitance.
The ground that is without loss of generality, this phasor diagram obtains under following assumed condition:
(1) ignores device and circuit active loss, namely suppose all resistance R=0;
(2) do not contain negative sequence component in the system.
Under the stable state, the inverter voltage drop that connects in the reactance of being incorporated into the power networks is used
Figure BDA00003189081500082
Expression can be decomposed into real component
Figure BDA00003189081500083
With idle component
Figure BDA00003189081500084
Wherein: With access point place voltage Phase place is identical, is used for regulating idle output;
Figure BDA00003189081500087
Be used for regulating meritorious output.Output current is used
Figure BDA00003189081500088
Expression can be decomposed into real component
Figure BDA00003189081500089
With idle component
Figure BDA000031890815000810
According to the reactor characteristic, the voltage real component
Figure BDA000031890815000811
The leading current real component
Figure BDA000031890815000812
90 ° in phase place, the voltage power-less component The leading current idle component
Figure BDA000031890815000814
90 ° in phase place.By control λ angle, just can realize meritorious energy flowing between system.
For cascade structure, can stable operation for guaranteeing it, its output voltage Must and output current
Figure BDA000031890815000816
Become 90 ° phase relation, can be decomposed into real component
Figure BDA000031890815000817
With idle component
For three-phase bridge type converter, under stable state, its output voltage
Figure BDA000031890815000819
With output current
Figure BDA000031890815000820
Between phase relation adjustable, can be decomposed into real component equally With idle component
Figure BDA000031890815000822
In the realization of meritorious and idle component, the main principle that need follow:
U · Lq = U · s - U · 1 q - U · 2 q
U · Lp = - ( U · 1 p + U · 2 p )
Therefore, can realize the reasonable distribution that bridge architecture and cascade structure contravarianter voltage are exported with idle instruction current according to meritorious, thus the control device output current
Figure BDA00003189081500091
, to reach the adjusting of meritorious and idle component.
Specific embodiment described herein only is that the present invention's spirit is illustrated.Those skilled in the art can make various modifications or replenish or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.

Claims (5)

1. a new topological structure voltage source inverter is characterized in that, comprises based on the inverter of single-phase bridge cascade structure and based on the inverter of three-phase bridge structure; Described inverter based on the single-phase bridge cascade structure is three-phase, and the three-phase cascaded inverter inserts three-phase bridge structure inverter simultaneously and connects into star structure at the neutral point place; Or three-phase bridge structure inverter is positioned at the neutral point of three-phase cascaded inverter.
2. a kind of new topological structure voltage source inverter according to claim 1, it is characterized in that, the inverter of cascade structure is every to be constituted by N H bridge is unit cascaded, and its DC side only connects electric capacity or connects DC network or by current transformer incoming transport network.
3. a kind of new topological structure voltage source inverter according to claim 1, it is characterized in that the inverter of described three-phase bridge structure adopts three-phase half-bridge structure formula inverter or three phase full bridge structural formula inverter or many level of diode clamp structural formula inverter or many level of striding capacitance structural formula inverter or device cascaded structure formula inverter or many level of module combinations structural formula inverter.
4. a kind of new topological structure voltage source inverter according to claim 3 is characterized in that, the DC side of the inverter of described three-phase bridge structure only connects electric capacity or connects DC network or pass through current transformer incoming transport network.
5. the control method based on new topological structure voltage source inverter is characterized in that, comprises following control method:
Control method one: cascaded inverter and three-phase bridge type converter DC side only connect dc capacitor, finish idle and full remuneration negative-sequence current, and concrete steps are:
Step 1: under the stable state, the inverter voltage drop that connects in the reactance of being incorporated into the power networks is used
Figure FDA00003189081400011
Expression, and be decomposed into positive sequence component
Figure FDA00003189081400012
With negative sequence component
Figure FDA00003189081400013
, the inverter output current is used Expression, and be decomposed into the positive sequence idle component
Figure FDA00003189081400015
With negative sequence component
Figure FDA00003189081400016
Wherein:
Figure FDA00003189081400017
With access point place voltage
Figure FDA00003189081400018
Phase place is identical, is used for the positive sequence reactive current of bucking-out system;
Figure FDA00003189081400019
Be used for the negative-sequence current of bucking-out system; According to the reactor characteristic, the positive sequence voltage component
Figure FDA000031890814000110
Leading forward-order current component
Figure FDA000031890814000111
90 ° in phase place, the negative sequence voltage component
Figure FDA000031890814000112
Leading negative-sequence current component
Figure FDA000031890814000113
90 ° in phase place;
Step 2: for cascaded inverter, can stable operation for guaranteeing it, its output voltage
Figure FDA000031890814000114
Must and output current
Figure FDA000031890814000115
Become 90 ° phase relation, then be decomposed into positive sequence component With negative sequence component
Figure FDA000031890814000117
For three-phase bridge type converter, under stable state, its output voltage
Figure FDA000031890814000118
With output current
Figure FDA000031890814000119
Between phase relation adjustable, be decomposed into positive sequence component equally
Figure FDA000031890814000120
With negative sequence component
Figure FDA000031890814000121
Step 3: in the realization of idle and negative sequence component, the main principle that need follow:
U · L + = U · S - U · 1 + - U · 2 +
U · L - = - ( U · 1 - + U · 2 - )
Realize the reasonable distribution that bridge architecture and cascade structure contravarianter voltage are exported according to idle with the negative phase-sequence instruction current, thus the control device output current
Figure FDA00003189081400022
, to reach idle and full remuneration negative sequence component;
Control method two: the cascaded inverter DC side only connects electric capacity, and three-phase bridge type converter can be realized adjusting meritorious and idle component this moment by current transformer incoming transport electrical network, and concrete steps are:
Step 1: under the stable state, the inverter voltage drop that connects in the reactance of being incorporated into the power networks is used
Figure FDA00003189081400023
Expression, and be decomposed into real component
Figure FDA00003189081400024
With idle component
Figure FDA00003189081400025
Wherein:
Figure FDA00003189081400026
With access point place voltage
Figure FDA00003189081400027
Phase place is identical, is used for regulating idle output;
Figure FDA00003189081400028
Be used for regulating meritorious output, output current is used
Figure FDA00003189081400029
Expression, and be decomposed into real component
Figure FDA000031890814000210
With idle component , according to the reactor characteristic, the voltage real component
Figure FDA000031890814000212
The leading current real component
Figure FDA000031890814000213
90 ° in phase place, the voltage power-less component
Figure FDA000031890814000214
The leading current idle component
Figure FDA000031890814000215
90 ° in phase place;
Step 2: for cascade structure, can stable operation for guaranteeing it, its output voltage Must and output current
Figure FDA000031890814000217
Become 90 ° phase relation, then be decomposed into real component
Figure FDA000031890814000218
With idle component
Figure FDA000031890814000219
For three-phase bridge type converter, under stable state, its output voltage
Figure FDA000031890814000220
With output current
Figure FDA000031890814000221
Between phase relation adjustable, be decomposed into real component equally
Figure FDA000031890814000222
With idle component
Figure FDA000031890814000223
Step 3: in the realization of meritorious and idle component, the main principle that need follow:
U · Lq = U · s - U · 1 q - U · 2 q
U · Lp = - ( U · 1 p + U · 2 p )
Realize the reasonable distribution that bridge architecture and cascade structure contravarianter voltage are exported according to meritorious with idle instruction current, thus the control device output current
Figure FDA000031890814000226
, to reach the adjusting of meritorious and idle component.
CN201310177393.9A 2013-05-14 2013-05-14 Novel topological structure voltage source type inverter and adjusting method Active CN103236800B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310177393.9A CN103236800B (en) 2013-05-14 2013-05-14 Novel topological structure voltage source type inverter and adjusting method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310177393.9A CN103236800B (en) 2013-05-14 2013-05-14 Novel topological structure voltage source type inverter and adjusting method

Publications (2)

Publication Number Publication Date
CN103236800A true CN103236800A (en) 2013-08-07
CN103236800B CN103236800B (en) 2015-04-15

Family

ID=48884823

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310177393.9A Active CN103236800B (en) 2013-05-14 2013-05-14 Novel topological structure voltage source type inverter and adjusting method

Country Status (1)

Country Link
CN (1) CN103236800B (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103986358A (en) * 2014-04-25 2014-08-13 哈尔滨工业大学 Novel modular multi-level converter topology
CN104218592A (en) * 2014-02-26 2014-12-17 锦州拓新电力电子有限公司 Direct current capacitor voltage control method for power units of SVG (static VAR generator)
CN104600971A (en) * 2013-10-31 2015-05-06 台达电子工业股份有限公司 Compensating circuit and control method of voltage balance
CN104716656A (en) * 2014-12-31 2015-06-17 哈尔滨工业大学 Cascading static synchronous reactive compensator topology with energy exchange unit and control method thereof
US9318974B2 (en) 2014-03-26 2016-04-19 Solaredge Technologies Ltd. Multi-level inverter with flying capacitor topology
WO2016066169A1 (en) * 2014-10-27 2016-05-06 Vestas Wind Systems A/S Wind-turbine converter control for modular string converters
US9941813B2 (en) 2013-03-14 2018-04-10 Solaredge Technologies Ltd. High frequency multi-level inverter
CN108206638A (en) * 2018-02-06 2018-06-26 中国西电电气股份有限公司 A kind of flexible DC power transmission full-bridge valve section
US10218285B2 (en) 2015-10-19 2019-02-26 Siemens Aktiengesellschaft Medium voltage hybrid multilevel converter and method for controlling a medium voltage hybrid multilevel converter
CN109510488A (en) * 2018-12-07 2019-03-22 常州天曼智能科技有限公司 A kind of three-phase bidirectional electric energy converting means and its control method
CN110212547A (en) * 2019-04-16 2019-09-06 清华大学 Hybrid cascade SVG topology and its control method
CN110518821A (en) * 2019-07-01 2019-11-29 山东大学 A kind of six level converter of high-frequency and its topological circuit and modulator approach
WO2020211458A1 (en) * 2019-04-17 2020-10-22 山东大学 Hybrid cascaded apf topology structure and control method thereof

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101494425A (en) * 2009-01-19 2009-07-29 上海海事大学 Three-phase mixing multi-level inverter circuit
CN201323528Y (en) * 2008-12-03 2009-10-07 中国电力科学研究院 Active power quality regulator
CN102157940A (en) * 2011-03-28 2011-08-17 荣信电力电子股份有限公司 Device for eliminating voltage harmonics of power system
CN102593841A (en) * 2011-12-31 2012-07-18 泰州师范高等专科学校 Current separation compensation-based cascaded H-bridge distribution static synchronous compensator (DSTATCOM) device and separation compensation method
CN102723734A (en) * 2012-06-29 2012-10-10 西安交通大学 Voltage control method of Y-type connected direct-current bus of serially-connected H bridge multi-level grid-connected inverter
CN102931854A (en) * 2012-10-25 2013-02-13 株洲变流技术国家工程研究中心有限公司 Cascaded high-voltage inverter
CN103095167A (en) * 2012-12-13 2013-05-08 国网智能电网研究院 Three-phase modulation multi-level converter energy balance control method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201323528Y (en) * 2008-12-03 2009-10-07 中国电力科学研究院 Active power quality regulator
CN101494425A (en) * 2009-01-19 2009-07-29 上海海事大学 Three-phase mixing multi-level inverter circuit
CN102157940A (en) * 2011-03-28 2011-08-17 荣信电力电子股份有限公司 Device for eliminating voltage harmonics of power system
CN102593841A (en) * 2011-12-31 2012-07-18 泰州师范高等专科学校 Current separation compensation-based cascaded H-bridge distribution static synchronous compensator (DSTATCOM) device and separation compensation method
CN102723734A (en) * 2012-06-29 2012-10-10 西安交通大学 Voltage control method of Y-type connected direct-current bus of serially-connected H bridge multi-level grid-connected inverter
CN102931854A (en) * 2012-10-25 2013-02-13 株洲变流技术国家工程研究中心有限公司 Cascaded high-voltage inverter
CN103095167A (en) * 2012-12-13 2013-05-08 国网智能电网研究院 Three-phase modulation multi-level converter energy balance control method

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11742777B2 (en) 2013-03-14 2023-08-29 Solaredge Technologies Ltd. High frequency multi-level inverter
US11545912B2 (en) 2013-03-14 2023-01-03 Solaredge Technologies Ltd. High frequency multi-level inverter
US9941813B2 (en) 2013-03-14 2018-04-10 Solaredge Technologies Ltd. High frequency multi-level inverter
CN104600971B (en) * 2013-10-31 2017-05-10 台达电子工业股份有限公司 Compensating circuit and control method of voltage balance
CN104600971A (en) * 2013-10-31 2015-05-06 台达电子工业股份有限公司 Compensating circuit and control method of voltage balance
CN104218592A (en) * 2014-02-26 2014-12-17 锦州拓新电力电子有限公司 Direct current capacitor voltage control method for power units of SVG (static VAR generator)
US10886831B2 (en) 2014-03-26 2021-01-05 Solaredge Technologies Ltd. Multi-level inverter
US10680505B2 (en) 2014-03-26 2020-06-09 Solaredge Technologies Ltd. Multi-level inverter
US11855552B2 (en) 2014-03-26 2023-12-26 Solaredge Technologies Ltd. Multi-level inverter
US11632058B2 (en) 2014-03-26 2023-04-18 Solaredge Technologies Ltd. Multi-level inverter
US10153685B2 (en) 2014-03-26 2018-12-11 Solaredge Technologies Ltd. Power ripple compensation
US9318974B2 (en) 2014-03-26 2016-04-19 Solaredge Technologies Ltd. Multi-level inverter with flying capacitor topology
US11296590B2 (en) 2014-03-26 2022-04-05 Solaredge Technologies Ltd. Multi-level inverter
US10404154B2 (en) 2014-03-26 2019-09-03 Solaredge Technologies Ltd Multi-level inverter with flying capacitor topology
US10886832B2 (en) 2014-03-26 2021-01-05 Solaredge Technologies Ltd. Multi-level inverter
US10700588B2 (en) 2014-03-26 2020-06-30 Solaredge Technologies Ltd. Multi-level inverter
US10680506B2 (en) 2014-03-26 2020-06-09 Solaredge Technologies Ltd. Multi-level inverter
CN103986358B (en) * 2014-04-25 2016-06-22 哈尔滨工业大学 A kind of modularization multi-level converter topology
CN103986358A (en) * 2014-04-25 2014-08-13 哈尔滨工业大学 Novel modular multi-level converter topology
US10250042B2 (en) 2014-10-27 2019-04-02 Vestas Wind Systems A/S Wind-turbine converter control for modular string converters
WO2016066169A1 (en) * 2014-10-27 2016-05-06 Vestas Wind Systems A/S Wind-turbine converter control for modular string converters
CN104716656A (en) * 2014-12-31 2015-06-17 哈尔滨工业大学 Cascading static synchronous reactive compensator topology with energy exchange unit and control method thereof
US10218285B2 (en) 2015-10-19 2019-02-26 Siemens Aktiengesellschaft Medium voltage hybrid multilevel converter and method for controlling a medium voltage hybrid multilevel converter
CN108206638A (en) * 2018-02-06 2018-06-26 中国西电电气股份有限公司 A kind of flexible DC power transmission full-bridge valve section
CN108206638B (en) * 2018-02-06 2019-04-23 中国西电电气股份有限公司 A kind of flexible DC transmission full-bridge valve section
CN109510488A (en) * 2018-12-07 2019-03-22 常州天曼智能科技有限公司 A kind of three-phase bidirectional electric energy converting means and its control method
CN109510488B (en) * 2018-12-07 2021-11-09 常州天曼智能科技有限公司 Three-phase bidirectional electric energy conversion device and control method thereof
CN110212547A (en) * 2019-04-16 2019-09-06 清华大学 Hybrid cascade SVG topology and its control method
CN111564851B (en) * 2019-04-16 2022-01-04 清华大学 Hybrid cascaded SVG topology
CN111564851A (en) * 2019-04-16 2020-08-21 清华大学 Hybrid cascaded SVG topology
US11368018B2 (en) 2019-04-17 2022-06-21 Shandong University Hybrid cascaded APF topology and control method therefor
WO2020211458A1 (en) * 2019-04-17 2020-10-22 山东大学 Hybrid cascaded apf topology structure and control method thereof
CN110518821A (en) * 2019-07-01 2019-11-29 山东大学 A kind of six level converter of high-frequency and its topological circuit and modulator approach

Also Published As

Publication number Publication date
CN103236800B (en) 2015-04-15

Similar Documents

Publication Publication Date Title
CN103236800B (en) Novel topological structure voltage source type inverter and adjusting method
CN110350564B (en) High-voltage direct-hanging energy storage device and power control method
CN106253728B (en) Multi-port modular multi-level converter for Multi-end flexible direct current transmission application
CN107196539B (en) A kind of MMC zero DC voltage fault traversing control method under bridge arm parameter unbalance state
CN102723734B (en) Voltage control method of Y-type connected direct-current bus of serially-connected H bridge multi-level grid-connected inverter
Wang et al. An overview introduction of VSC-HVDC: State-of-art and potential applications in electric power systems
CN103647302A (en) Multi-sub microgrid-contained mixed microgrid system and control method thereof
CN105406500A (en) Asymmetric operational control method of direct current side monopolar grounding fault of MMC-HVDC system
CN103190070A (en) HVDC converter with neutral-point connected zero-sequence dump resistor
CN102611108A (en) Three-level three-phase four-wire active power filter and control method thereof
CN103401459B (en) Triangularly connected chain H bridge suspended type inverter interphase DC side voltage balancing control method
CN103620942A (en) Converter
CN103715930B (en) A kind of method promoting flexible direct current power transmission system capacity
CN204835971U (en) Multiport power electronic transformer
CN104410260A (en) Fault-tolerance-capability-equipped MMC sub-module structure capable of realizing DC fault self-protection, and MMC modulation method thereof
CN103457271A (en) Chained static synchronous compensator with active power adjusting capacity and cascading unit thereof
CN105048788A (en) Multi-port power electronic transformer of mixed cascading structure, and control method thereof
CN104953589A (en) Combined three-phase microgrid system with serially-connected microsource inverters
CN104167947B (en) Z-source three-level T-type inverter and neutral-point balance control method thereof
Wang et al. Control of a three-stage three-phase cascaded modular power electronic transformer
CN102545675A (en) Hybrid series H-bridge multi-level grid-connected inverter direct current bus voltage control method
WO2016029824A1 (en) Direct current voltage conversion device and bridge arm control method therefor
CN105337281A (en) DC side capacitance voltage control method for star-shaped chained active power filter
CN107046297A (en) DC series permanent magnetism wind power plant topological structure and its control method
CN105024578A (en) Three-phase modular multilevel converter parallel system and control method thereof

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant