CN107332231A - Suitable for MW grades of high-power grid simulator topological structure - Google Patents
Suitable for MW grades of high-power grid simulator topological structure Download PDFInfo
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- CN107332231A CN107332231A CN201710444024.XA CN201710444024A CN107332231A CN 107332231 A CN107332231 A CN 107332231A CN 201710444024 A CN201710444024 A CN 201710444024A CN 107332231 A CN107332231 A CN 107332231A
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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
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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
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
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Abstract
The invention discloses a kind of high-power grid simulator topological structure for being applied to MW grades, occurs the series connection of module group it is characterized in that MW grades of high-power grid simulator is resolved into fundamental wave and occurs module harmonic, harmonic wave occurs module group and is made up of multiple harmonic waves generation modular unit, fundamental wave occurs module and realizes the high-power requirement of high-power grid simulator using the MW level three-phase PWM inverters of high power low switching frequency, and the control bandwidth that module improves high-power grid simulator using the three-phase PWM inverter of the high switching frequency of multiple low-power occurs for harmonic wave.The present invention as the line voltage generating means in the grid-connected research of distributed power generation, solve MW grade high-power grid simulator control bandwidth it is narrow the problem of, the power grid environment needed for offer can be studied for distributed power generation is grid-connected, to meet the demand of research.
Description
Technical field
The invention belongs to power quality analysis and control field, it is related to a kind of high-power grid simulator for being applied to MW grades
Topology, solve MW grades high-power grid simulator control bandwidth it is narrow the problem of, distributed power generation research in, be that system is carried
The generating means of power supply network environment.
Technical background
With the increase of distributed generation system power, for providing the grid simulator power of power grid environment for system
With increase.But during designing high-power grid simulator topological structure, can shadow due to being limited by switching frequency
Its control bandwidth is rung, causes simulator hydraulic performance decline.Therefore in order to adapt to the development of distributed generation system, in the urgent need to providing
A kind of high-power grid simulator topology for being applied to MW grades.
At present, the research of grid simulator has become the hot issue of distributed power generation research, such as utility model patent
Document《A kind of full energy feedback type grid simulator》(publication number CN203911496U) and《Series-type voltage quality disturbing occurs
Device》(publication number CN 1058955A), wherein：
Chinese utility model patent CN203911496U is in disclosed in 29 days October in 2014《A kind of full energy feedback type electricity
Net simulator》, the utility model can realize that line voltage gradual change, no-voltage are passed through, (deficient) pressure of gradual frequency change, mistake, cross (deficient)
The simulation of the functions such as frequency, can meet the various electric performance tests of photovoltaic DC-to-AC converter and electric network fault simulation；
Chinese utility model patent CN1058955A is in disclosed in 8 days November in 2006《Series-type voltage quality disturbing is sent out
Generating apparatus》, the utility model can produce voltage dip under series modulation pattern, temporarily liter, overvoltage, under-voltage, three-phase are uneven
The multiple voltage quality disturbance type such as weighing apparatus, voltage fluctuation and flicker, wave distortion.
Existing related grid simulator granted patent is made a general survey of, the technical problem that it is present is as follows：
1st, existing related data is very few for the research of MW grades of high-power grid simulator topology, for high-power electricity
The problem of net simulator control bandwidth is low does not provide effective solution yet；
2nd, with the increase of distributed generation system power, some existing grid simulators, which can not be provided, to be devices under
Required test environment.
The content of the invention
The invention aims to solve the problem of high-power grid simulator control bandwidth is narrow in the prior art, thinking is
MW grades of high-power grid simulator is resolved into fundamental wave and occurs the generation module group series connection of module harmonic, module group occurs for harmonic wave
Occur modular unit by multiple harmonic waves to constitute, the MW level three-phase PWM inversions that module uses high power low switching frequency occur for fundamental wave
Device realizes the high-power requirement of high-power grid simulator, and the three-phase that module uses the high switching frequency of multiple low-power occurs for harmonic wave
PWM inverter is controlled to the bandwidth of high-power power network.
The object of the present invention is achieved like this.The invention provides a kind of high-power grid simulator for being applied to MW grades
Topological structure, occurs module, harmonic wave generation module group, three-phase series manifold type transformer group and threephase load by fundamental wave and constitutes；
Harmonic wave occurs module group and is made up of n harmonic wave generation modular unit, and three-phase series manifold type transformer group is by n three
The manifold type transformer unit that is in series is constituted, and each harmonic wave generation modular unit harmonic wave occurred in module group is designated as harmonic wave
Each three-phase series manifold type transformer unit in generation modular unit i, three-phase series manifold type transformer group is designated as three
Be in series manifold type transformer unit i, i=1,2,3...n；
The fundamental wave occurs module and occurs module DC source by fundamental wave, and module three-phase tri-level PWM inverter occurs for fundamental wave,
Module three-phase LC wave filters occur for fundamental wave, and module three-phase STS static state switching switch compositions occur for fundamental wave；Module occurs for the fundamental wave
The DC side input that with fundamental wave module three-phase tri-level PWM inverter occurs for DC source is connected, and module three occurs for the fundamental wave
Phase three-level pwm inverter output end occurs module three-phase LC filter inductances input one-to-one corresponding with the fundamental wave and is connected,
Module three-phase LC filter capacities output end occurs for the fundamental wave and fundamental wave generation module three-phase STS static state switching switches are defeated
Enter side and correspond connected, the fundamental wave generation module three-phase STS static state switching switch outlet sides and the change of three-phase series manifold type
The secondary input side of depressor unit 1 connects one to one；
The harmonic wave occurs module group and is made up of n harmonic wave generation modular unit, and harmonic wave occurs modular unit i and sent out by harmonic wave
Module three-phase tri-level PWM inverter i occurs for raw module DC source i, harmonic wave, and it is harmonious that module three-phase LC wave filters i occurs for harmonic wave
Module three-phase STS static state switching switch i compositions occur for ripple；The harmonic wave occurs module DC source i and occurs module with the harmonic wave
Three-phase tri-level PWM inverter i DC side is connected, the harmonic wave occur module three-phase tri-level PWM inverter i output ends with
Harmonic wave occurs module three-phase LC wave filter i inputs and corresponds connected, the harmonic wave generation module three-phase LC wave filters i outputs
End is corresponded with harmonic wave generation module three-phase STS static state switching switch i input sides to be connected, the harmonic wave generation module three
Phase STS static state switching switch i outlet sides are corresponded with the three-phase series manifold type transformer unit i primary sides input side to be connected
Connect, module three-phase LC wave filter i electric capacity neutral points N occurs for the harmonic waveiIt is former with the three-phase series manifold type transformer unit i
Side outlet side short circuit；
Described three-phase series manifold type transformer group is made up of n three-phase series manifold type transformer unit, wherein i-th
Individual three-phase series manifold type transformer unit is three-phase series manifold type transformer unit i secondary outlet side and (i+1) individual three
Be in series the i.e. three-phase series manifold type transformer unit (i+1) of manifold type transformer unit secondary input side correspond phase
Even, n-th of three-phase series manifold type transformer unit is three-phase series manifold type transformer unit n secondary outlet side and three-phase
Load, which is corresponded, to be connected.
It is preferred that, it is that module three-phase tri-level occurs for harmonic wave that module three-phase tri-level PWM inverter, which occurs, for i-th of harmonic wave
PWM inverter i switching frequencies fiIt is harmonic wave hair to occur module three-phase tri-level PWM inverter less than or equal to (i+1) individual harmonic wave
The switching frequency f of raw module three-phase tri-level PWM inverter (i+1)(i+1)Half, i.e.,：
Relative to existing technology, beneficial effects of the present invention are：
1st, MW grades of high-power grid simulator is resolved into fundamental wave generation module harmonic generation module group string by the present invention
Connection；
2nd, fundamental wave generation module realizes high-power power network mould using the MW level three-phase PWM inverters of high power low switching frequency
Intend the high-power requirement of device；
3rd, harmonic wave generation module improves high-power power network using the three-phase PWM inverter of the high switching frequency of multiple low-power
The control bandwidth of simulator, successfully solve MW grades high-power grid simulator control bandwidth it is narrow the problem of, can for distribution
Power grid environment needed for the research offer of formula electricity generation grid-connecting, to meet the demand of research.
Brief description of the drawings
Fig. 1 is a kind of high-power grid simulator topology diagram for being applied to MW grades；
Fig. 2 is 2MW grid simulator topological structure system emulation figures in the embodiment of the present invention.
Each several part label and part corresponding relation are as follows in figure：
10- fundamental waves occur module 20- harmonic waves and occur module group
30- three-phase series manifold type transformer group 40- threephase loads.
Embodiment
MATLAB/Simulink emulation platform buildings 2MW high-power grid simulator topology system is utilized in the present embodiment
System, as shown in Figure 2.
By fundamental wave module 10, harmonic wave occur for the high-power grid simulator topological structure for being applied to MW grades in the present embodiment
Generation module group 20, three-phase series manifold type transformer group 30 and threephase load 40 are constituted.
Harmonic wave occurs module group 20 and is made up of n harmonic wave generation modular unit, and three-phase series manifold type transformer group 30 is by n
Individual three-phase series manifold type transformer unit is constituted, and harmonic wave to that each harmonic wave in module group 20 occur and occurs modular unit note
Occurs each three-phase series manifold type transformer list in modular unit i, three-phase series manifold type transformer group 30 for harmonic wave
Member is designated as three-phase series manifold type transformer unit i, i=1,2,3...n.In the present embodiment, n=2.I.e. module occurs for harmonic wave
Occur modular unit comprising 2 harmonic waves in group 20, harmonic wave is designated as respectively and occurs the harmonic of modular unit 1 generation modular unit 2, three
It is in series in manifold type transformer group 30 comprising 2 three-phase series manifold type transformer units, three-phase series coupling is designated as respectively
Formula transformer unit 1 and three-phase series manifold type transformer unit 2.
The fundamental wave occurs module 10 and occurs module DC source by fundamental wave, and module three-phase tri-level PWM inversions occur for fundamental wave
Module three-phase LC wave filters occur for device, fundamental wave, and module three-phase STS static state switching switch compositions occur for fundamental wave, and the fundamental wave occurs
Module three-phase tri-level PWM inverter uses the MW level three-phase PWM inverters of high power low switching frequency；Base is taken in the present embodiment
Module DC source voltage 1100V occurs for ripple, and module three-phase tri-level PWM inverter power 2MW, switching frequency occur for fundamental wave
Module three-phase LC filter parameters L=0.075mH, C=334uF occur for 2.5KHz, fundamental wave；Module DC source occurs for the fundamental wave
The DC side input for occurring module three-phase tri-level PWM inverter with fundamental wave is connected, and the electricity of module three-phase three occurs for the fundamental wave
Flat PWM inverter output end occurs module three-phase LC filter inductances input one-to-one corresponding with the fundamental wave and is connected, the base
Ripple occurs module three-phase LC filter capacities output end and occurs module three-phase STS static state switching switch input sides one with the fundamental wave
One correspondence is connected, and module three-phase STS static state switching switch outlet sides and the three-phase series manifold type transformation occur for the fundamental wave
The secondary input side of device unit 1 connects one to one.
The harmonic wave occurs module group 20 and is made up of n harmonic wave generation modular unit, and modular unit i occurs for harmonic wave by harmonic wave
Generation module DC source i, harmonic wave occur module three-phase tri-level PWM inverter i, harmonic wave occur module three-phase LC wave filters i and
Module three-phase STS static state switching switch i compositions occur for harmonic wave, and the harmonic wave occurs module three-phase tri-level PWM inverter i and used
Module three-phase tri-level PWM inverter i switch occurs for the three-phase tri-level PWM inverter of the high switching frequency of low-power, harmonic wave
Frequency fiLess than or equal to the switching frequency f that module three-phase tri-level PWM inverter (i+1) occurs for harmonic wave(i+1)Half.This implementation
N=2 is taken in example, the voltage 800V of module DC source 1 occurs for harmonic wave, and the power of module three-phase tri-level PWM inverter 1 occurs for harmonic wave
The parameter L of module three-phase LC wave filters 1 occurs for 100KW, switching frequency 8KHz, harmonic wave1=0.12mH, C1=30uF；Mould occurs for harmonic wave
Module three-phase tri-level PWM inverter 2 power 20KW, switching frequency 16KHz, harmonic wave occur for the voltage 600V of block DC source 2, harmonic wave
The parameter L of generation module three-phase LC wave filters 22=0.12mH, C2=30uF.
As shown in Fig. 2 module DC source 1 and harmonic wave generation module three occur for the harmonic wave that modular unit 1 occurs for harmonic wave
The DC side of phase three-level pwm inverter 1 is connected, the harmonic wave occur the output end of module three-phase tri-level PWM inverter 1 with
The input one-to-one corresponding that module three-phase LC wave filters 1 occur for harmonic wave is connected, and module three-phase LC wave filters 1 occur for the harmonic wave
Output end is corresponded with the input side that module three-phase STS static state switchings switch 1 occurs for harmonic wave to be connected, and module occurs for the harmonic wave
A pair of the primary side input side 1 of the static outlet sides for switching switch 1 of three-phase STS and the three-phase series manifold type transformer unit 1
It should connect, the electric capacity neutral point N of module three-phase LC wave filters 1 occurs for the harmonic wave1With the three-phase series manifold type transformer
The primary side outlet side short circuit of unit 1.It is inverse that with the harmonic wave module three-phase tri-level PWM occurs for the DC source 2 of harmonics generation unit
The DC side for becoming device 2 is connected, and the output end of module three-phase tri-level PWM inverter 2 occurs for the harmonic wave and the harmonic wave occurs
The inputs of module three-phase LC wave filters 2, which is corresponded, to be connected, the harmonic wave occur the output ends of module three-phase LC wave filters 2 with
The input side one-to-one corresponding that module three-phase STS static state switchings switch 2 occurs for the harmonic wave is connected, and module three-phase occurs for the harmonic wave
The outlet side of STS static state switchings switch 2 and the primary side input side of the three-phase series manifold type transformer unit 2 are corresponded and connected
Connect, the electric capacity neutral point N of module three-phase LC wave filters 2 occurs for the harmonic wave2With the three-phase series manifold type transformer unit 2
Primary side outlet side short circuit.
The three-phase series manifold type transformer group 30 is made up of n three-phase series manifold type transformer unit, wherein i-th
Individual three-phase series manifold type transformer unit is three-phase series manifold type transformer unit i secondary outlet side and (i+1) individual three
Be in series the i.e. three-phase series manifold type transformer unit (i+1) of manifold type transformer unit secondary input side correspond phase
Even, n-th of three-phase series manifold type transformer unit is three-phase series manifold type transformer unit n secondary outlet side and three-phase
Load 40, which is corresponded, to be connected；N=2 is taken in the present embodiment, threephase load is 0.5 Ω resistive loads；Three-phase series manifold type becomes
The secondary outlet side of depressor unit 1 is corresponded with the secondary input side of three-phase series manifold type transformer unit 2 to be connected, three-phase
The secondary outlet side of series coupled formula transformer unit 2 is corresponded with threephase load 40 to be connected.
Claims (2)
1. a kind of high-power grid simulator topological structure for being applied to MW grades, it is characterised in that described MW grades high-power electricity
Net simulator topological structure occurs module, harmonic wave generation module group, three-phase series manifold type transformer group and three-phase by fundamental wave and born
Carry composition；
Harmonic wave occurs module group and is made up of n harmonic wave generation modular unit, and three-phase series manifold type transformer group is by n three-phase string
Join manifold type transformer unit to constitute, each harmonic wave generation modular unit harmonic wave occurred in module group is designated as harmonic wave
Each three-phase series manifold type transformer unit in modular unit i, three-phase series manifold type transformer group is designated as three-phase string
Join manifold type transformer unit i, i=1,2,3...n；
The fundamental wave occurs module and occurs module DC source by fundamental wave, and module three-phase tri-level PWM inverter, fundamental wave occur for fundamental wave
Module three-phase STS static state switching switch compositions occur for generation module three-phase LC wave filters, fundamental wave；Module direct current occurs for the fundamental wave
The DC side input that with fundamental wave module three-phase tri-level PWM inverter occurs for source is connected, and module three-phase three occurs for the fundamental wave
Level PWM inverter output end occurs module three-phase LC filter inductances input one-to-one corresponding with the fundamental wave and is connected, described
Fundamental wave occurs module three-phase LC filter capacities output end and occurs module three-phase STS static state switching switch input sides with the fundamental wave
Correspond and be connected, module three-phase STS static state switching switch outlet sides and three-phase series manifold type transformer occur for the fundamental wave
The secondary input side of unit 1 connects one to one；
The harmonic wave occurs module group and is made up of n harmonic wave generation modular unit, and harmonic wave occurs modular unit i and occurs mould by harmonic wave
Module three-phase tri-level PWM inverter i occurs for block DC source i, harmonic wave, and module three-phase LC wave filter i harmonics hair occurs for harmonic wave
Raw module three-phase STS static state switching switch i compositions；The harmonic wave occurs module DC source i and occurs module three-phase with the harmonic wave
Three-level pwm inverter i DC side is connected, and module three-phase tri-level PWM inverter i output ends and harmonic wave occur for the harmonic wave
Generation module three-phase LC wave filter i inputs, which are corresponded, to be connected, the harmonic wave occur module three-phase LC wave filter i output ends with
The harmonic wave occurs module three-phase STS static state switching switch i input side one-to-one corresponding and is connected, and module three-phase occurs for the harmonic wave
STS static state switching switch i outlet sides connect one to one with the three-phase series manifold type transformer unit i primary side input sides,
Module three-phase LC wave filter i electric capacity neutral points N occurs for the harmonic waveiWith the three-phase series manifold type transformer unit i primary sides
Outlet side short circuit；
The three-phase series manifold type transformer group is made up of n three-phase series manifold type transformer unit, wherein i-th of three-phase
Series coupled formula transformer unit is three-phase series manifold type transformer unit i secondary outlet side and (i+1) individual three-phase string
Connection manifold type transformer unit is that the secondary input side one-to-one corresponding of three-phase series manifold type transformer unit (i+1) is connected, n-th
Individual three-phase series manifold type transformer unit is three-phase series manifold type transformer unit n secondary outlet side and threephase load one
One correspondence is connected.
2. a kind of high-power grid simulator topological structure for being applied to MW grades according to claim 1, it is characterised in that
It is that module three-phase tri-level PWM inverter i switch frequencies occur for harmonic wave that module three-phase tri-level PWM inverter, which occurs, for i-th of harmonic wave
Rate fiIt is that module three-phase tri-level occurs for harmonic wave to occur module three-phase tri-level PWM inverter less than or equal to (i+1) individual harmonic wave
The switching frequency f of PWM inverter (i+1)(i+1)Half, i.e.,：
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1
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| CN201710444024.XA CN107332231A (en) | 2017-06-13 | 2017-06-13 | Suitable for MW grades of high-power grid simulator topological structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109193749A (en) * | 2018-07-23 | 2019-01-11 | 合肥工业大学 | Harmonic wave generating device and control method based on recursive discrete Fourier transformation |
| CN110429590A (en) * | 2019-07-24 | 2019-11-08 | 合肥科威尔电源***股份有限公司 | A kind of harmonic wave analog control method suitable for power grid analog power |
| CN112688364A (en) * | 2020-12-22 | 2021-04-20 | 南京理工大学 | Current transformation topological structure for large-megawatt-level power grid characteristic real-time simulation device |
| CN112886828A (en) * | 2021-01-13 | 2021-06-01 | 江苏金风科技有限公司 | Power grid simulator topological structure and control method thereof |
| CN114256845A (en) * | 2021-12-07 | 2022-03-29 | 阳光电源股份有限公司 | Power grid simulation device and high-frequency harmonic current control method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102185337A (en) * | 2011-05-06 | 2011-09-14 | 深圳市禾望电气有限公司 | Grid stimulating device |
| CN204228843U (en) * | 2014-09-25 | 2015-03-25 | 上海市质量监督检验技术研究院 | A kind of AC network simulator topological structure |
| CN106487240A (en) * | 2015-08-28 | 2017-03-08 | 中国电力科学研究院 | A kind of grid simulator with accurate harmonic voltage and virtual impedance control |
-
2017
- 2017-06-13 CN CN201710444024.XA patent/CN107332231A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102185337A (en) * | 2011-05-06 | 2011-09-14 | 深圳市禾望电气有限公司 | Grid stimulating device |
| CN204228843U (en) * | 2014-09-25 | 2015-03-25 | 上海市质量监督检验技术研究院 | A kind of AC network simulator topological structure |
| CN106487240A (en) * | 2015-08-28 | 2017-03-08 | 中国电力科学研究院 | A kind of grid simulator with accurate harmonic voltage and virtual impedance control |
Non-Patent Citations (2)
| Title |
|---|
| 张炳达 等: "基于PWM技术的功率负荷模拟器", 《电力电子技术》 * |
| 朱虹 等: "大功率电网模拟器***研究", 《电源学报》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109193749A (en) * | 2018-07-23 | 2019-01-11 | 合肥工业大学 | Harmonic wave generating device and control method based on recursive discrete Fourier transformation |
| CN110429590A (en) * | 2019-07-24 | 2019-11-08 | 合肥科威尔电源***股份有限公司 | A kind of harmonic wave analog control method suitable for power grid analog power |
| CN110429590B (en) * | 2019-07-24 | 2022-12-27 | 科威尔技术股份有限公司 | Harmonic simulation control method suitable for power grid simulation power supply |
| CN112688364A (en) * | 2020-12-22 | 2021-04-20 | 南京理工大学 | Current transformation topological structure for large-megawatt-level power grid characteristic real-time simulation device |
| CN112886828A (en) * | 2021-01-13 | 2021-06-01 | 江苏金风科技有限公司 | Power grid simulator topological structure and control method thereof |
| CN112886828B (en) * | 2021-01-13 | 2022-08-12 | 江苏金风科技有限公司 | Power grid simulator topological structure and control method thereof |
| CN114256845A (en) * | 2021-12-07 | 2022-03-29 | 阳光电源股份有限公司 | Power grid simulation device and high-frequency harmonic current control method thereof |
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