CN103616584B - The adjustment method of a kind of frequency converter test platform and frequency converter test platform - Google Patents
The adjustment method of a kind of frequency converter test platform and frequency converter test platform Download PDFInfo
- Publication number
- CN103616584B CN103616584B CN201310577235.2A CN201310577235A CN103616584B CN 103616584 B CN103616584 B CN 103616584B CN 201310577235 A CN201310577235 A CN 201310577235A CN 103616584 B CN103616584 B CN 103616584B
- Authority
- CN
- China
- Prior art keywords
- frequency converter
- test platform
- power transformer
- impedance
- converter test
- 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.)
- Active
Links
Abstract
The embodiment of the invention discloses the adjustment method of a kind of frequency converter test platform and frequency converter test platform, relate to wind power generation field, the complexity of frequency converter test platform can be reduced, cost, floor area and electric and mechanical loss.Specifically comprise: power transformer and impedance regulon, power transformer while be connected with electrical network by switch element, the another side of power transformer is connected with the first end of impedance regulon, second end of impedance regulon is connected with the generator-side converter of tested frequency converter, the side that switch element is connected with electrical network is also connected with the grid side current transformer of tested frequency converter, by the disconnection of switch element and being incorporated into the power networks of Closed control frequency converter test platform.Embodiments of the invention are applied to the structure of frequency converter test platform.
Description
Technical field
The present invention relates to wind power generation field, particularly relate to a kind of with the AC and DC hybrid transmission system test platform of intermediate DC link and the adjustment method of frequency converter test platform.
Background technology
Frequency converter, as a kind of electric energy control device of voltage regulation and frequency modulation, has been widely used in various industrial automation.And in wind-powered electricity generation field, the AC and DC hybrid transmission system of band intermediate DC link, as the critical component of double-fed wind power generator group, is responsible for converting the mechanical energy that blower fan wind wheel inputs the electric energy of constant frequency and constant voltage to and inputing on electrical network.It is not only related to the quality of power supply, the wind energy utilization efficiency of whole wind power generating set, also directly determines the availability of Wind turbines, reliability and life-span.Therefore sufficient performance test, particularly full load test and temperature rise test must be carried out to it before frequency converter dispatches from the factory.
Frequency converter test platform common at present comprises: with the high-power double-fed generator of the Wind turbines capacity matching control object as tested frequency converter; With Wind turbines capacity quite or higher high-power drive motor and one for controlling the big-power transducer of this dragging motor, for simulating Wind turbines actual operating mode, double-fed generator is dragged on specific rotation speeds and active power point; According to power system capacity, line voltage demand, also need to increase relevant switching device and power transformer.These testing apparatuss, for simulating the operating condition of actual wind power generating set, carry out the grid-connected experiment of frequency converter, load test, system protection experiment and temperature rise experiment.
State in realization in the process of testing frequency converter, inventor finds existing frequency converter test platform, and equipment is complicated, investment is large, and occupation area of equipment is large, maintenance cost is high, electrically and mechanical loss also all larger.
Summary of the invention
Embodiments of the invention provide the adjustment method of a kind of frequency converter test platform and frequency converter test platform, can reduce the complexity of frequency converter test platform, cost, floor area and electric and mechanical loss.
For achieving the above object, embodiments of the invention adopt following technical scheme:
First aspect, provides a kind of frequency converter test platform, comprising: power transformer and impedance regulon;
Described power transformer while be connected with electrical network by switch element, the another side of described power transformer is connected with the first end of described impedance regulon;
Second end of described impedance regulon is connected with the generator-side converter of tested frequency converter;
The side that described switch element is connected with described electrical network is also connected with the grid side current transformer of described tested frequency converter;
By being incorporated into the power networks of frequency converter test platform described in the disconnection of described switch element and Closed control.
Optionally, in conjunction with first aspect, in the implementation that the first is possible, described platform also comprises the filtration module be connected with the another side of described power transformer;
Described filtration module be used for filtering is carried out to the input voltage of described power transformer another side, make described power transformer pulse voltage amplitude be within the scope of secure threshold.
Optionally, in conjunction with first aspect, in the implementation that the second is possible, described impedance regulon comprises adjustable reactor.
Optionally, in the implementation that the third is possible, any one the possible implementation in conjunction with in first aspect and first aspect:
Described power transformer is adjustable power transformer, wherein, described power transformer be determine according to the ratio of the grid side current transformer of described tested frequency converter with the specified running current of generator-side converter with the ratio of the voltage of another side.
Optionally, in the 4th kind of possible implementation, in conjunction with the first in first aspect, first aspect and the possible implementation of the second, described frequency converter test platform also comprises the switch element be connected with electrical network with described power transformer;
Described switch element comprises isolating switch, contactor or electronic power switch.
Second aspect, provides a kind of adjustment method of frequency converter test platform, comprising:
Frequency converter test platform comprises power transformer and impedance regulon;
Regulate described impedance regulon, make the impedance of described frequency converter test platform identical with the impedance of tested frequency converter operating circuit;
According to the ratio of the grid side current transformer of described tested frequency converter with the predetermined running electric current of generator-side converter, that determine described power transformer with ratio that the is voltage of another side;
Closing Switch unit, makes described frequency converter test platform and described electrical network complete grid-connected.
Optionally, in the implementation that the first is possible, in conjunction with second aspect, when described frequency converter test platform also comprises the filtration module be connected with the another side of described power transformer, described method also comprises:
The input voltage of described filtration module to described power transformer another side carries out filtering, make described power transformer pulse voltage amplitude be within the scope of secure threshold.
Optionally, in the implementation that the second is possible, in conjunction with second aspect, according to the ratio of the grid side current transformer of described tested frequency converter with the specified running current of generator-side converter, determine described power transformer, while the ratio of voltage with another side, also comprises:
Regulate described generator-side converter, make the measurement condition of described tested frequency converter during full-load run identical with actual condition, and described power transformer output voltage is on one side identical with the voltage of electrical network, wherein said measurement condition is adopt described test platform to the running parameter of described frequency converter under described tested frequency converter test mode, and described actual condition is the running parameter that described tested frequency converter is operated in wind power generating set circuit.
The adjustment method of the frequency converter test platform that the embodiment of the present invention provides and frequency converter test platform, by a power transformer and an impedance regulon, simulate the working environment of tested frequency converter, complete the test to tested frequency converter, the complexity of frequency converter test platform can be reduced, cost, floor area and electric and mechanical loss.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, the accompanying drawing in the following describes is only some embodiments of the present invention.
The structural representation of a kind of frequency converter test platform that Fig. 1 provides for embodiments of the invention;
The structural representation of the another kind of frequency converter test platform that Fig. 2 provides for embodiments of the invention;
The structural representation of a kind of frequency converter test platform that Fig. 3 provides for another embodiment of the present invention;
The structural representation of a kind of filtration module that Fig. 4 provides for another embodiment of the present invention;
The structural representation of the another kind of filtration module that Fig. 5 provides for another embodiment of the present invention;
The structural representation of another filtration module that Fig. 6 provides for another embodiment of the present invention;
The schematic flow sheet of the adjustment method of a kind of frequency converter test platform that Fig. 7 provides for embodiments of the invention.
Reference numeral
1-electrical network;
The tested frequency converter of 2-;
21-grid side current transformer;
22-generator-side converter;
3-impedance regulon;
4-power transformer;
5-switch element;
6-filtration module;
61-first filter capacitor;
62-second filter capacitor;
63-the 3rd filter capacitor;
64-the 4th filter capacitor;
65-the 5th filter capacitor;
66-the 6th filter capacitor;
67-first filter resistance;
68-second filter resistance;
69-the 3rd filter resistance;
7-energy flow is to signal.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
With reference to shown in Fig. 1, embodiments of the invention provide a kind of frequency converter test platform, comprising: power transformer 4 and impedance regulon 3;
Power transformer 4 while be connected with electrical network 1 by switch element 5, the another side of power transformer 4 is connected with the first end of impedance regulon 3;
Second end of impedance regulon 3 is connected with the generator-side converter 22 of tested frequency converter 2;
The side that switch element 5 is connected with electrical network 1 is also connected with the grid side current transformer 21 of tested frequency converter 2;
By the disconnection of switch element 5 and the grid-connected of Closed control frequency converter test platform.
Concrete, as energy flows to shown in signal 7, grid side current transformer 21 absorbs energy from electrical network 1, and namely electric current flows into grid side current transformer 21, flows out through generator-side converter 22, more again feeds back to electrical network from power transformer 4.High-power energy is in frequency converter test platform internal flow, only from electrical network, absorb a small amount of system loss power, energy flow in certain Fig. 1 just illustrates, self energy consumption is maintained because wind power generating set not only will provide energy also to need to absorb energy from electrical network to electrical network, therefore embodiments of the invention also to disclose in frequency converter test platform with energy flow to the contrary energy flow of signal 7 to (not reoffering accompanying drawing), now power transformer 4 while absorb energy from electrical network 1, through generator-side converter 22, again electrical network is fed back to from grid side current transformer 21.Be understandable that in this area that also transformer energy being flowed into side is called former limit or elementary, flows out side and is called secondary or secondary by energy.
The correlation parameter of the operating circuit of tested frequency converter 2 is known, according to the correlation parameter of the operating circuit of tested frequency converter 2, impedance regulon 3 is regulated, make the impedance of the test loop of frequency converter test platform identical with the impedance of the operating circuit of tested frequency converter 2, be used for the impedance of the operating circuit of simulating tested frequency converter 2, wherein, impedance regulon 3 can be adjustable reactor, and the operating circuit of tested frequency converter 2 can think the circuit of the wind power generating set that tested frequency converter 2 is worked in actual applications here.
In like manner, the ratio I of grid side current transformer 21 and the specified running current of generator-side converter 22
21: I
22known, then can according to the ratio I of grid side current transformer 21 with the specified running current of generator-side converter 22
21: I
22, the ratio N of determine power transformer 4 and another side coil turn
1: N
2, make the measurement condition during full power of frequency converter test platform identical with actual condition, concrete, the ratio I of grid side current transformer 21 and the specified running current of generator-side converter 22
21: I
22with the ratio N of one side of power transformer 4 and the coil turn of another side
1: N
2be inversely proportional to; Wherein measurement condition is adopt test platform to the running parameter of frequency converter test mode low-converter, and actual condition is the running parameter that frequency converter is operated in wind power generating set circuit.
Optionally, frequency converter test platform also comprises the switch element 5 be connected with electrical network 1 with one side of power transformer 4, regulate motor side current transformer 22, make the output voltage on one side of power transformer 4 equal with the voltage of electrical network 1, now Closing Switch unit 5, output voltage then due to one side of power transformer 4 is equal with the voltage of electrical network 1, completes the grid-connected of the test loop of electrical network 1 and frequency converter test platform.After grid-connected, the energy in electrical network 1 loads into test loop, and energy flows in test loop, and electrical network 1 need provide the loss power of power transformer 4, impedance regulon 3 and tested frequency converter 2.Wherein, Closing Switch unit 5 can be isolating switch, contactor or electronic power switch.
Now tested frequency converter 2 is operated on the power points identical with when normally working, and can test tested frequency converter 2.
Optionally, with reference to shown in Fig. 2, frequency converter test platform also comprises the filtration module 6 be connected with the another side of power transformer 4, for carrying out filtering to the input current input voltage of power transformer another side, the pulse voltage peak amplitude on one side of power transformer 4 is made to be within the scope of secure threshold, wherein secure threshold scope refers to the voltage range of the safe voltage being not only less than power transformer 4 but also the safe voltage being less than senser element, wherein, senser element is used for measuring the voltage exported of power transformer 4.
The frequency converter test platform that the embodiment of the present invention provides, by a power transformer and an impedance regulon, simulate the working environment of tested frequency converter, complete the test to tested frequency converter, the complexity of frequency converter test platform can be reduced, cost, floor area and electric and mechanical loss.
Circuit on practical significance is all three-phase circuit, and now, as shown in Figure 3, wherein, electrical network 1 is three phase network to the annexation of the frequency converter test platform shown in Fig. 2, and switch element 5 is threephase switch.
Concrete, grid side current transformer 21 absorbs energy from three phase network 1, and namely electric current inputs tested frequency converter 2 from grid side current transformer 21, then exports from generator-side converter 22.
The nominal parameter of tested frequency converter 2 is known, according to the correlation parameter of the operating circuit of tested frequency converter 2, regulate impedance regulon 3, make the impedance of the test loop of frequency converter test platform identical with the impedance of the operating circuit of tested frequency converter 2, namely simulate the impedance of the operating circuit of tested frequency converter 2, impedance regulon 3 is now three the adjustable reactors being connected in each road respectively.
In order to prevent switch element 5 closed before, the modulating pulse overtension that generator-side converter 22 exports damages senser element, the input voltage of the another side of filtration module 6 pairs of three-phase power transformers 4 carries out filtering, reduce the pulse voltage amplitude of the input voltage of the another side of three-phase power transformer 4, make the pulse voltage amplitude on one side of three-phase power transformer 4 be within the scope of secure threshold, wherein secure threshold scope refers to the voltage range of the safe voltage being not only less than power transformer 4 but also the safe voltage being less than senser element.
Optionally, with reference to shown in Fig. 4, filtration module 6 comprises: the first filter capacitor 61, second filter capacitor 62 and the 3rd filter capacitor 63, first filter capacitor 61, second filter capacitor 62 and the 3rd filter capacitor 63 are connected into frequency converter test platform by the connection of connection delta.
Optionally, with reference to shown in Fig. 5, filtration module 6 comprises: the connection that the 4th filter capacitor the 64, five filter capacitor 65 and the 6th filter capacitor the 66, four filter capacitor the 64, five filter capacitor 65 and the 6th filter capacitor 66 are connect by star is connected into frequency converter test platform.
Optionally, with reference to shown in Fig. 6, the 4th filter capacitor the 64, five filter capacitor 65 and the 6th filter capacitor 66 can also be connected with the 3rd filter resistance 69 with the first filter resistance 67, second filter resistance 68 respectively, avoid system oscillation.
According to the ratio I of grid side current transformer 21 with the specified running current of generator-side converter 22
21: I
22, the ratio N of determine three-phase power transformer 4 and another side coil turn
1: N
2, be used for analog inverter actual operating mode, namely make the measurement condition during full power of frequency converter test platform identical with actual condition.
By the output voltage of adjustment motor side current transformer 22, make three-phase power transformer 4 output voltage equal with the voltage of three phase network 1, now Closing Switch unit 5, completes the grid-connected of the test loop of three phase network 1 and frequency converter test platform.After loading, high-power energy only flows in test loop, and three phase network 1 need provide the loss power of three-phase power transformer 4, impedance regulon 3 and tested frequency converter 2.
Like this, tested frequency converter 2 is operated on the power points identical with when normally working, and just can carry out every test of tested frequency converter 2.
The frequency converter test platform that the embodiment of the present invention provides, by a power transformer and an impedance regulon, simulate the working environment of tested frequency converter, complete the test to tested frequency converter, the complexity of frequency converter test platform can be reduced, cost, floor area and electric and mechanical loss.
Embodiments of the invention provide a kind of adjustment method of frequency converter test platform, for building the frequency converter test platform that said apparatus embodiment provides, concrete, as shown in Figure 7, comprising:
S701, adjustment impedance regulon, make the impedance of frequency converter test platform identical with the impedance of tested frequency converter operating circuit.
Concrete, the associated impedances characteristic of the operating circuit of tested frequency converter is known, the impedance of frequency converter test platform can be adjusted to identical with the impedance of tested frequency converter operating circuit.
S702, according to the ratio of the grid side current transformer of tested frequency converter with the predetermined running electric current of generator-side converter, that determine power transformer with ratio that the is voltage of another side.
Further alternative, regulator generator side converter, make the measurement condition of tested frequency converter during carrying row identical with actual condition, and power transformer output voltage is on one side identical with the voltage of electrical network, wherein measurement condition is adopt test platform to the running parameter of frequency converter test mode low-converter, and actual condition is the running parameter that frequency converter is operated in wind power generating set circuit.Owing to being according to the ratio of the grid side current transformer of tested frequency converter with the predetermined running electric current of generator-side converter, determine power transformer while the ratio of voltage with another side, therefore when the ratio of predetermined running electric current is set as the ratio of specified running current, just the parameters of tested frequency converter under declared working condition can be measured, certainly the ratio of this predetermined running electric current also can do any adjustment, according to demand to realize the parameter measurement of tested frequency converter under various operating mode.
S703, Closing Switch unit, make frequency converter test platform and electrical network complete grid-connected, and regulate frequency converter operating condition to full-load run, then during full-load run, the measurement condition of frequency converter is identical with actual condition.
Optionally, when the filtration module that the another side that above-mentioned frequency converter test platform also comprises power transformer is connected, filtering can be carried out by filtration module to the input voltage of power transformer another side, make power transformer pulse voltage amplitude be within the scope of secure threshold.
Wherein, above-mentioned steps S701 and S702 does not have sequential relationship, namely S701 and S702 can successively carry out, and also can carry out simultaneously, but, just step S703 can be carried out after step S701 and S702 completes, now, if step S701 does not carry out completely, namely the impedance of frequency converter test platform is not identical with the impedance of tested frequency converter operating circuit, then the measurement condition of tested frequency converter is not identical with actual condition, causes test result abundant not; If step S702 does not carry out completely, then grid side current transformer 21 is discontented with sufficient requirement of actual working condition with the running current relation of generator-side converter 22, causes grid side current transformer 21 or generator-side converter 22 cannot carry out fully loaded experiment.
The adjustment method of the frequency converter test platform that the embodiment of the present invention provides, a kind of frequency converter test platform of being simulated the working environment of tested frequency converter by a power transformer and impedance regulon is provided, complete the test to tested frequency converter, the complexity of frequency converter test platform can be reduced, cost, floor area and electric and mechanical loss.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection domain of claim.
Claims (8)
1. a frequency converter test platform, is characterized in that, comprising: power transformer and impedance regulon;
Described power transformer while be connected with electrical network by switch element, the another side of described power transformer is connected with the first end of described impedance regulon;
Second end of described impedance regulon is connected with the generator-side converter of tested frequency converter;
The side that described switch element is connected with described electrical network is also connected with the grid side current transformer of described tested frequency converter;
By being incorporated into the power networks of frequency converter test platform described in the disconnection of described switch element and Closed control;
Described power transformer while be determine according to the ratio of the grid side current transformer of described tested frequency converter with the specified running current of generator-side converter with the ratio of the voltage of another side.
2. frequency converter test platform according to claim 1, is characterized in that, described platform also comprises the filtration module be connected with the another side of described power transformer;
Described filtration module be used for filtering is carried out to the input voltage of described power transformer another side, make described power transformer pulse voltage amplitude be within the scope of secure threshold.
3. frequency converter test platform according to claim 1, is characterized in that, described impedance regulon comprises adjustable reactor.
4. the frequency converter test platform according to any one of claim 1-3, is characterized in that:
Described power transformer is adjustable power transformer.
5. the frequency converter test platform according to any one of claim 1-3, is characterized in that, described frequency converter test platform also comprises the switch element be connected with electrical network with described power transformer;
Described switch element comprises isolating switch, contactor or electronic power switch.
6. an adjustment method for frequency converter test platform, is characterized in that, comprising:
Frequency converter test platform comprises power transformer and impedance regulon;
Regulate described impedance regulon, make the impedance of described frequency converter test platform identical with the impedance of tested frequency converter operating circuit;
According to the ratio of the grid side current transformer of described tested frequency converter with the predetermined running electric current of generator-side converter, that determine described power transformer with ratio that the is voltage of another side;
Closing Switch unit, makes described frequency converter test platform and described electrical network complete grid-connected.
7. method according to claim 6, is characterized in that, when described frequency converter test platform also comprises the filtration module be connected with the another side of described power transformer, described method also comprises:
The input voltage of described filtration module to described power transformer another side carries out filtering, make described power transformer pulse voltage amplitude be within the scope of secure threshold.
8. the method according to claim 6 or 7, is characterized in that, according to the ratio of the grid side current transformer of described tested frequency converter with the specified running current of generator-side converter, that determine described power transformer with ratio that the is voltage of another side, also comprises:
Regulate described generator-side converter, make the measurement condition of described tested frequency converter during full-load run identical with actual condition, and described power transformer output voltage is on one side identical with the voltage of electrical network, wherein said measurement condition is adopt described test platform to the running parameter of described tested frequency converter under described tested frequency converter test mode, and described actual condition is the running parameter that described tested frequency converter is operated in wind power generating set circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310577235.2A CN103616584B (en) | 2013-11-15 | 2013-11-15 | The adjustment method of a kind of frequency converter test platform and frequency converter test platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310577235.2A CN103616584B (en) | 2013-11-15 | 2013-11-15 | The adjustment method of a kind of frequency converter test platform and frequency converter test platform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103616584A CN103616584A (en) | 2014-03-05 |
| CN103616584B true CN103616584B (en) | 2016-03-02 |
Family
ID=50167289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310577235.2A Active CN103616584B (en) | 2013-11-15 | 2013-11-15 | The adjustment method of a kind of frequency converter test platform and frequency converter test platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103616584B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104407261B (en) * | 2014-12-19 | 2017-06-09 | 北京天源科创风电技术有限责任公司 | Become detection platform, the device and method of oar frequency converter in a kind of pitch-controlled system |
| CN105702418A (en) * | 2015-12-09 | 2016-06-22 | 国家电网公司 | Magnetic flux control-based adjustable reactor |
| CN107817452A (en) * | 2016-08-31 | 2018-03-20 | 天津瑞能电气有限公司 | Reactor platform is used in a kind of wind-power electricity generation frequency conversion device complete machine detection |
| CN109116128A (en) * | 2017-06-26 | 2019-01-01 | 株洲变流技术国家工程研究中心有限公司 | A kind of frequency converter total power certification test method and device |
| CN109470940B (en) * | 2017-09-07 | 2021-03-23 | 株洲变流技术国家工程研究中心有限公司 | Full-power test device and method for converter |
| CN107677971B (en) * | 2017-10-20 | 2020-01-14 | 天津瑞能电气有限公司 | Comprehensive test platform for high-power converter |
| CN113945789B (en) * | 2021-10-15 | 2023-07-25 | 广东电网有限责任公司 | Phase-shifting transformer output voltage amplitude and phase full-load test device and test method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3802263A (en) * | 1970-09-11 | 1974-04-09 | Bailey Meter Co | Electromagnetic flowmeter measuring system |
| SU748122A1 (en) * | 1977-10-21 | 1980-07-15 | Пензенский Политехнический Институт | Apparatus for measuring linear displacements |
| CN102539966A (en) * | 2011-12-23 | 2012-07-04 | 台达电子企业管理（上海）有限公司 | Testing system for loads of frequency converters |
| CN202614870U (en) * | 2012-06-04 | 2012-12-19 | 河南乔格联机械设备制造有限公司 | Frequency converter load test system |
| CN103019231A (en) * | 2012-12-14 | 2013-04-03 | 天津瑞能电气有限公司 | Frequency converter control box aging test device |
| CN203259607U (en) * | 2013-04-12 | 2013-10-30 | 天津瑞能电气有限公司 | Aging testing device for frequency converter |
-
2013
- 2013-11-15 CN CN201310577235.2A patent/CN103616584B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3802263A (en) * | 1970-09-11 | 1974-04-09 | Bailey Meter Co | Electromagnetic flowmeter measuring system |
| SU748122A1 (en) * | 1977-10-21 | 1980-07-15 | Пензенский Политехнический Институт | Apparatus for measuring linear displacements |
| CN102539966A (en) * | 2011-12-23 | 2012-07-04 | 台达电子企业管理（上海）有限公司 | Testing system for loads of frequency converters |
| CN202614870U (en) * | 2012-06-04 | 2012-12-19 | 河南乔格联机械设备制造有限公司 | Frequency converter load test system |
| CN103019231A (en) * | 2012-12-14 | 2013-04-03 | 天津瑞能电气有限公司 | Frequency converter control box aging test device |
| CN203259607U (en) * | 2013-04-12 | 2013-10-30 | 天津瑞能电气有限公司 | Aging testing device for frequency converter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103616584A (en) | 2014-03-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103616584B (en) | The adjustment method of a kind of frequency converter test platform and frequency converter test platform | |
| CN103197241B (en) | Flexible DC power transmission MMC converter valve operating test device and test method | |
| Awadallah et al. | On the effects of solar panels on distribution transformers | |
| CN102904458B (en) | Control method and device for inverter | |
| CN202093155U (en) | Large-volume multi-adaptable detection platform for grid-connected photovoltaic inverter | |
| CN104578859A (en) | Voltage-sharing controlling method for direct current bus voltage of single-phase power electronic transformer | |
| CN102447265B (en) | Loading device and method for power unit with feedback function | |
| CN102244466B (en) | Voltage sag generator | |
| CN106950512B (en) | Energy storage converter grid-connected and grid-disconnected characteristic integrated detection system and method | |
| CN102148501B (en) | Disturbance generation device for wind power station | |
| CN104953582A (en) | Three-phase power grid disturbance generating device and control method thereof | |
| CN103954866A (en) | Testing circuit of half-bridge-structure voltage source current converter and modulation method thereof | |
| CN111459048A (en) | SVG control hardware-in-loop simulation platform and simulation method | |
| CN109100590B (en) | Test power supply and cascading static synchronous compensator converter valve test system | |
| CN105699817A (en) | Energy-saving type frequency converter load testing system and method | |
| CN105717399A (en) | Test device for power grid adaptability | |
| CN105134506A (en) | Performance test simulation platform of doubly-fed type wind turbine generator system frequency conversion controller | |
| Liu et al. | A scaled-down microgrid laboratory testbed | |
| CN104065088A (en) | High-voltage STATCOM commutation chain equivalent full-voltage and full-power operation control method | |
| CN203858311U (en) | Testing circuit of half-bridge structure voltage source converter | |
| CN204668948U (en) | Electrical network simulator | |
| CN103487675A (en) | Ageing experiment system and method for static dynamic reactive power adjusting devices | |
| CN212459910U (en) | Aging test device for low-voltage frequency converter | |
| Zhao et al. | A General Integration Method for Small-Signal Stability Analysis of Grid-Forming Converter Connecting to Power System | |
| CN203396861U (en) | Aging experiment system of static-type dynamic reactive adjusting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | 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 | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Shen Gang street of Jiangyin city in Jiangsu province 214443 Wuxi city Shen Zhuang Road No. 3 Patentee after: Vision Energy Co.,Ltd. Address before: Shen Gang street of Jiangyin city in Jiangsu province 214443 Wuxi city Shen Zhuang Road No. 3 Patentee before: Envision Energy (Denmark) APS |