CN203365567U - Wind power generation converter test platform for simulation of wind power on-site operating conditions - Google Patents
Wind power generation converter test platform for simulation of wind power on-site operating conditions Download PDFInfo
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Abstract
本实用新型涉及一种模拟风电现场运行工况的风力发电变流器测试平台，属于风力发电技术领域。本实用新型通过利用测试平台包括V1kV/V2V电源变压器、直驱型风力发电变流器测试支路和双馈型风力发电变流器测试支路，直驱型风力发电变流器测试支路由隔离变压器、风力发电变流器和鼠笼式冷却变频电动机依次连接构成，双馈型风力发电变流器测试支路由双馈型风力发电变流器和绕线式冷却异步发电机串接构成，鼠笼式冷却变频电动机通过联动轴与绕线式冷却异步发电机相连，本实用新型能够模拟双馈型风力发电变流器实验和直驱型风力发电变流器实验，保证了风力发电系统中运行的直驱型风力发电变流器和双馈型风力发电变流器都能够在现场可靠稳定的运行。
The utility model relates to a wind power generation converter test platform for simulating the on-site operation conditions of wind power, and belongs to the technical field of wind power generation. The utility model includes a V1kV/V2V power transformer, a direct-drive wind power converter test branch and a double-fed wind power converter test branch by using a test platform, and the direct drive wind power converter test branch is isolated Transformers, wind power converters and squirrel-cage cooling variable frequency motors are connected sequentially. The test branch of double-fed wind power converters is composed of double-fed wind power converters and winding cooling asynchronous generators connected in series. The cage-type cooling variable-frequency motor is connected with the winding-type cooling asynchronous generator through the linkage shaft. The utility model can simulate the double-fed wind power converter experiment and the direct-drive wind power converter experiment, ensuring the operation of the wind power generation system. Both direct-drive wind power converters and doubly-fed wind power converters can operate reliably and stably on site.
Description
技术领域technical field
本实用新型涉及一种模拟风电现场运行工况的风力发电变流器测试平台，属于风力发电技术领域。The utility model relates to a wind power generation converter test platform for simulating the on-site operation conditions of wind power, and belongs to the technical field of wind power generation.
背景技术Background technique
风电产业在良好的行业背景、和相关政策推动下，已进入市场规模大幅扩张的时期。到2020年，预计风电市场装机规模将达到1000GW，风电市场必将进入快速发展时期。风力发电变流器是风力发电系统中的核心设备，主要有直驱型风力发电变流器和双馈型风力发电变流器两种类型。Driven by a good industry background and related policies, the wind power industry has entered a period of substantial market expansion. By 2020, the installed capacity of the wind power market is expected to reach 1000GW, and the wind power market will surely enter a period of rapid development. The wind power converter is the core equipment in the wind power system. There are mainly two types of direct-drive wind power converters and doubly-fed wind power converters.
如今国内有许多生产风力发电变流器的厂家。虽然大部分生产厂家已具备了对风力发电变流器进行常规测试的能力和质量保证体系。但如果生产厂家想保证风力发电变流器在现场可靠、稳定的运行，就必须在风力发电变流器出厂前经过模拟风场运行测试，然而可以为风力发电变流器测试的地面电机对托平台往往仅能适用于一种类型的变流器，并且地面电机对托测试平台建设成本的昂贵也使大多数风力发电变流器的生产厂家对同时建造两种电机对托试验平台望而却步。Nowadays, there are many manufacturers of wind power converters in China. Although most manufacturers already have the ability and quality assurance system for routine testing of wind power converters. However, if the manufacturer wants to ensure the reliable and stable operation of the wind power converter in the field, it must pass the simulated wind field operation test before the wind power converter leaves the factory. The platform is often only suitable for one type of converter, and the high construction cost of the ground motor-to-support test platform also makes most wind power converter manufacturers discouraged from building two kinds of motor-to-support test platforms at the same time.
实用新型内容Utility model content
本实用新型的目的是提供一种模拟风电现场运行工况的风力发电变流器测试平台，以解决目前的风力发电变流器测试平台仅能适用于一种类型的变流器，无法保证风力发电系统中运行的直驱型风力发电变流器和双馈型风力发电变流器都能够在现场可靠稳定的运行。The purpose of this utility model is to provide a wind power converter test platform for simulating the on-site operating conditions of wind power to solve the problem that the current wind power converter test platform can only be applied to one type of converter and cannot guarantee the wind power. Both the direct-drive wind power converter and the doubly-fed wind power converter operating in the power generation system can operate reliably and stably on site.
本实用新型为解决上述技术问题提供一种模拟风电现场运行工况的风力发电变流器测试平台，该测试平台包括V1kV/V2V电源变压器、直驱型风力发电变流器测试支路和双馈型风力发电变流器测试支路，V1kV/V2V电源变压器的源边侧接入V1kV的公共电网，副边侧接入测试平台背靠背公共电网接入点，直驱型风力发电变流器测试支路包括隔离变压器、直驱型风力发电变流器和鼠笼式冷却变频电动机，隔离变压器的一个主边绕组与测试平台背靠背公共电网接入点相连，两个副边绕组与直驱型风力发电变流器网侧接线端相应的两个输入端相连，直驱型风力发电变流器的机侧接线端与鼠笼式冷却变频电动机相连，双馈型风力发电变流器测试支路包括双馈型风力发电变流器和绕线式冷却变频发电机，双馈型风力发电变流器的网侧接线端与测试平台背靠背公共电网接入点相连，双馈型风力发电变流器的转子侧接线端和定子侧接线端与绕线式冷却变频发电机相连，所述的鼠笼式冷却变频电动机和绕线式冷却变频发电机之间通过联动轴连接，所述的测试平台还包括两个电力监控表，一个电力监控表设置在直驱型风力发电变流器测试支路和双馈型风力发电变流器测试支路的任一支路上，另一电力监控表设置在V1kV/V2V电源变压器和测试平台背靠背公共电网接入点之间。In order to solve the above technical problems, the utility model provides a wind power converter test platform for simulating the on-site operating conditions of wind power. The test platform includes a V1kV/V2V power transformer, a direct drive wind power converter test branch and a double Type wind power converter test branch, the source side of the V1kV/V2V power transformer is connected to the V1kV public grid, the secondary side is connected to the back-to-back public grid access point of the test platform, and the direct drive wind power converter test branch The circuit includes an isolation transformer, a direct-drive wind power converter, and a squirrel-cage cooling variable-frequency motor. One primary winding of the isolation transformer is connected to the back-to-back public grid access point of the test platform, and two secondary windings are connected to the direct-drive wind power generator. The corresponding two input terminals of the grid-side terminal of the converter are connected, the machine-side terminal of the direct-drive wind power converter is connected with the squirrel-cage cooling variable frequency motor, and the test branch of the doubly-fed wind power converter includes two Feed-type wind power converters and wound-type cooling variable frequency generators, the grid-side terminals of doubly-fed wind power converters are connected to the back-to-back public grid access points of the test platform, and the rotors of doubly-fed wind power converters The side terminal and the stator side terminal are connected to the winding cooling variable frequency generator, and the squirrel cage cooling variable frequency motor and the winding cooling variable frequency generator are connected through a linkage shaft. The test platform also includes two Two power monitoring meters, one power monitoring meter is set on any branch of the direct-drive wind power converter test branch and the doubly-fed wind power converter test branch, and the other power monitoring meter is set on V1kV/V2V Between the power transformer and the test platform back-to-back public grid access points.
所述的隔离变压器主边绕组与测试平台背靠背公共电网接入点之间通过断路器相连，隔离变压器的两个副边绕组与直驱型风力发电变流器网侧接线端相应的两个输入端之间分别都同两个断路器相连。The primary side winding of the isolation transformer is connected to the back-to-back public power grid access point of the test platform through a circuit breaker, and the two secondary side windings of the isolation transformer are connected to the corresponding two input terminals of the direct-drive wind power converter network side terminal. Both terminals are connected to two circuit breakers.
所述的双馈型风力发电变流器的转子侧接线端与绕线式冷却变频发电机之间通过一断路器相连The rotor-side terminal of the doubly-fed wind power converter is connected to the wound-type cooling variable-frequency generator through a circuit breaker
所述的测试平台还包括控制柜，该控制柜通过RS485与所述的两个电力监控表通信连接。The test platform also includes a control cabinet, which is connected to the two power monitoring meters through RS485 communication.
所述的V1kV/V2V电源变压器为10kV/690V干式变压器。The V1kV/V2V power transformer is a 10kV/690V dry-type transformer.
本实用新型的有益效果是:本实用新型通过利用电源变压器直驱型风力发电变流器测试支路和双馈型风力发电变流器测试支路，模拟双馈型风力发电变流器实验和直驱型风力发电变流器实验，保证了风力发电系统中运行的直驱型风力发电变流器和双馈型风力发电变流器都能够在现场可靠稳定的运行。The beneficial effects of the utility model are: the utility model simulates the double-fed wind power converter experiment and The direct-drive wind power converter experiment ensures that both the direct-drive wind power converter and the doubly-fed wind power converter operating in the wind power system can operate reliably and stably on site.
附图说明Description of drawings
图1是本实用新型的模拟风电现场运行工况的风力发电变流器测试平台结构图。Fig. 1 is a structural diagram of a wind power converter test platform for simulating wind power field operating conditions of the utility model.
具体实施方式Detailed ways
下面结合附图对本实用新型的具体实施方式作进一步的说明。Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described further.
如图1所示，本实用新型的模拟风电现场运行工况的风力发电变流器测试平台包括10kV/690V干式变压器T1、690V/690V隔离变压器T2、1号配电柜、2号配电柜、直驱型风力发电变流器、双馈型风力发电变流器、绕线式空空冷却异步发电机、鼠笼式空空冷却变频电动机、控制柜和上位机，10kV/690V干式变压器10kV侧接入公共电网，690V侧为测试平台背靠背公共电网接入点，690V/690V隔离变压器T2一侧通过1号配电柜中的开关K1和电力监控表U1接入测试平台背靠背公共电网接入点，电力监控表U1用于检测直驱型风力发电变流器馈入测试平台的电量，690V/690V隔离变压器T2另一侧通过2号配电柜中的开关K2和K3接入直驱型风力发电变流器的网侧接线端，直驱型风力发电变流器的机侧接线端与鼠笼式冷却变频电动机相连，鼠笼式冷却变频电动机通过联动轴连接绕线式冷却变频发电机，绕线式冷却变频发电机转子端通过2号配电柜中开关K5与双馈型风力发电变流器的转子侧接线端相连，绕线式冷却变频发电机定子端与双馈型风力发电变流器的定子侧接线端相连，双馈型风力发电变流器的网侧接线端通过1号配电柜中的电力监控表U2和开关K4接入690V公共电网接入点，电力监控表2用于检测双馈型风力发电变流器馈入测试平台背靠背公共电网接入点的能量，电力监控表U1和电力监控表U2通过RS485与控制柜相连，用于将检测到的电量信息传输给控制柜，控制柜还与上位机相连。As shown in Figure 1, the utility model wind power converter test platform for simulating wind power field operation conditions includes 10kV/690V dry-type transformer T1, 690V/690V isolation transformer T2, No. 1 power distribution cabinet, No. 2 power distribution cabinet cabinet, direct-drive wind power converter, double-fed wind power converter, wound air-to-air cooling asynchronous generator, squirrel-cage air-to-air cooling variable frequency motor, control cabinet and host computer, 10kV/690V dry-type transformer 10kV One side is connected to the public power grid, the 690V side is the back-to-back public power grid access point of the test platform, and the 690V/690V isolation transformer T2 side is connected to the back-to-back public power grid of the test platform through the switch K1 and the power monitoring meter U1 in the No. 1 power distribution cabinet point, the power monitoring table U1 is used to detect the power fed into the test platform by the direct-drive wind power converter, and the other side of the 690V/690V isolation transformer T2 is connected to the direct-drive type through the switches K2 and K3 in the No. 2 power distribution cabinet. The grid-side terminal of the wind power converter and the machine-side terminal of the direct-drive wind power converter are connected to the squirrel-cage cooling variable-frequency motor, which is connected to the winding-type cooling variable-frequency generator through the linkage shaft , the rotor end of the wire-wound cooling variable frequency generator is connected to the rotor side terminal of the doubly-fed wind power converter through the switch K5 in the No. The stator-side terminals of the converter are connected, and the grid-side terminals of the doubly-fed wind power converter are connected to the 690V public grid access point through the power monitoring meter U2 and switch K4 in the No. 1 power distribution cabinet. The power monitoring meter 2 is used to detect the energy fed into the back-to-back public grid access point of the double-fed wind power converter. The power monitoring meter U1 and the power monitoring meter U2 are connected to the control cabinet through RS485 to transmit the detected power information To the control cabinet, the control cabinet is also connected with the host computer.
双馈型风力发电变流器试验时，由10kV/690V干式变压器T1将10kV电源降为690V电源，690V侧为实验台背靠背公共电网接入点，690V/690V隔离变压器T2为双绕组输出变压器，为直驱型风力发电变流器供电，直驱型风力发电变流器驱动鼠笼式空空冷却变频电动机运转，通过联动轴拖动绕线式空空冷却异步发电机发电，模拟双馈风力发电系统，双馈型风力发电变流器则与绕线式空空冷却异步发电机和690V电网相连，进行试验，将双馈发电机所发能量馈入690V电网接入点，该测试平台中10kV/690V干式变压器T1流过的功率为试验平台背靠背的损耗功率，2MW的功率能量主要在内部流动，通过该测试平台能对研发、生产的双馈型风力发电变流器进行相关试验，包括双馈型风力发电变流器启动试验、双馈型风力发电变流器停机试验、双馈型风力发电变流器空载运转试验、双馈型风力发电变流器并网暂态控制试验、双馈型风力发电变流器的满功率测试、双馈型风力发电变流器效率测试、双馈型风力发电变流器输出THD测试、双馈型风力发电变流器输出DU/DT测试、风速模拟控制试验、转距控制试验、双馈电机功率控制试验、有功和无功控制试验、并网保护试验、脱网保护试验、低电压穿越试验和其它控制策略试验等。During the double-fed wind power converter test, the 10kV power supply is reduced to 690V power supply by the 10kV/690V dry-type transformer T1, the 690V side is the back-to-back public grid access point of the test bench, and the 690V/690V isolation transformer T2 is a double-winding output transformer , to supply power for the direct drive wind power converter, the direct drive wind power converter drives the squirrel-cage air-to-air cooling variable frequency motor to run, and drives the wound air-to-air cooling asynchronous generator to generate electricity through the linkage shaft, simulating double-fed wind power generation In the system, the doubly-fed wind power converter is connected with the wound air-to-air cooling asynchronous generator and the 690V power grid. The test is carried out, and the energy generated by the doubly-fed generator is fed into the 690V power grid access point. The 10kV/ The power flowing through the 690V dry-type transformer T1 is the back-to-back loss power of the test platform, and the power energy of 2MW mainly flows inside. Through this test platform, relevant tests can be carried out on the double-fed wind power converters developed and produced, including double-fed Feed-type wind power converter start-up test, double-fed wind power converter shutdown test, double-fed wind power converter no-load operation test, double-fed wind power converter grid-connected transient control test, double-fed Full power test of fed-in wind power converter, efficiency test of doubly-fed wind power converter, THD test of doubly-fed wind power converter output, DU/DT test of doubly-fed wind power converter output, wind speed Simulation control test, torque control test, doubly-fed motor power control test, active and reactive power control test, grid-connected protection test, off-grid protection test, low-voltage ride-through test and other control strategy tests, etc.
直驱型风力发电变流器试验时，由10kV/690V干式变压器T1将10kV电源降为690V电源，690V侧为实验台背靠背公共电网接入点，为双馈型风力发电变流器供电，双馈型风力发电变流器驱动绕线式空空冷却异步发电机运转，并拖动鼠笼式冷却变频电动机发电，模拟直驱风力发电系统，直驱型风力发电变流器与690V/690V隔离变压器T2和鼠笼式空空冷却变频电动机相连，进行试验，将鼠笼式空空冷却变频电动机所发能量通过T2馈入690V电网接入点。可进行的相关试验包括直驱型风力发电变流器启动试验、直驱型风力发电变流器停机试验、直驱型风力发电变流器空载运转试验、直驱型风力发电变流器并网暂态控制试验、直驱型风力发电变流器的满功率测试、直驱型风力发电变流器效率测试、并网保护试验、脱网保护试验、风速模拟控制试验和其他控制策略试验等。During the test of the direct-drive wind power converter, the 10kV power supply is reduced to 690V by the 10kV/690V dry-type transformer T1, and the 690V side is the back-to-back public grid access point of the test bench, which supplies power for the doubly-fed wind power converter. The double-fed wind power converter drives the wound air-to-air cooling asynchronous generator to run, and drives the squirrel-cage cooling variable frequency motor to generate electricity, simulating the direct drive wind power system, and the direct drive wind power converter is isolated from 690V/690V The transformer T2 is connected with the squirrel-cage air-to-air cooling variable-frequency motor, and the test is carried out, and the energy generated by the squirrel-cage air-to-air cooling variable-frequency motor is fed into the 690V grid access point through T2. Relevant tests that can be carried out include direct-drive wind power converter start-up test, direct-drive wind power converter shutdown test, direct-drive wind power converter no-load operation test, direct-drive wind power converter parallel Grid transient control test, full power test of direct-drive wind power converter, efficiency test of direct-drive wind power converter, grid-connected protection test, off-grid protection test, wind speed simulation control test and other control strategy tests, etc. .
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| CN106199428A (en) * | 2016-07-08 | 2016-12-07 | 兰州电机股份有限公司 | High-power double feed wind power generator pilot system and TT&C system thereof |
| CN106772046A (en) * | 2016-12-30 | 2017-05-31 | 贵州大学 | A kind of motor test complex under self-defined electric circumstance |
| CN107677971A (en) * | 2017-10-20 | 2018-02-09 | 天津瑞能电气有限公司 | High-power converter comprehensive test platform |
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| CN109084984A (en) * | 2018-10-30 | 2018-12-25 | 中国船舶重工集团海装风电股份有限公司 | A kind of wind power generating set electricity generation system united test device and test method |
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2013
- 2013-06-19 CN CN 201320352420 patent/CN203365567U/en not_active Expired - Lifetime
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| CN106199428A (en) * | 2016-07-08 | 2016-12-07 | 兰州电机股份有限公司 | High-power double feed wind power generator pilot system and TT&C system thereof |
| 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 |
| CN106772046A (en) * | 2016-12-30 | 2017-05-31 | 贵州大学 | A kind of motor test complex under self-defined electric circumstance |
| CN106772046B (en) * | 2016-12-30 | 2023-02-24 | 贵州大学 | Motor comprehensive test equipment under self-defined electrical environment |
| CN107677971A (en) * | 2017-10-20 | 2018-02-09 | 天津瑞能电气有限公司 | High-power converter comprehensive test platform |
| CN107860994A (en) * | 2017-10-20 | 2018-03-30 | 天津瑞能电气有限公司 | Marine total power water cooling current transformer test platform |
| 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 |
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| CN109084984A (en) * | 2018-10-30 | 2018-12-25 | 中国船舶重工集团海装风电股份有限公司 | A kind of wind power generating set electricity generation system united test device and test method |
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