System and method for testing wind farm power control strategy

A power control and testing system technology, applied in electrical testing/monitoring, etc., can solve the hidden dangers of power system safe and stable operation, increase the failure of the control system to be put into operation, etc., so as to increase the probability of successful operation, improve operation efficiency and safety high degree of versatility

Active Publication Date: 2014-02-26
STATE GRID CORP OF CHINA +2
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no mature quasi-real-time closed-loop test system for wind farm active / reactive power integrated control, which can verify the correctness and rationality of the control strategy before the wind farm active / reactive power control system is put into operation. It will increase the probability of failure of the control system in operation to a certain extent, and also bring hidden dangers to the safe and stable operation of the power system.

Method used

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  • System and method for testing wind farm power control strategy
  • System and method for testing wind farm power control strategy
  • System and method for testing wind farm power control strategy

Examples

Experimental program
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Effect test

Embodiment 1

[0059] Embodiment 1: active power test

[0060] Test conditions: the initial scheduling active power plan value is 85MW; when t=200s, the dispatching active power plan changes to 55MW; when t=400s, the dispatching active power plan value changes to 70MW; when t=600s, the wind farm active power plan value changes to 45MW. The test results are obtained, and the active power curve of the grid-connected point is given as Figure 6 shown. It can be seen from the test curve that the active power control system of the wind farm can correctly control the active power of the grid-connected point to the planned value according to the command value of the dispatch plan. The response speed of the active power control system of the wind turbine is affected by its own active power control strategy. If the active power of the wind turbine is only controlled by the pitch system, the response speed of the active control system of the wind turbine will be slow, and the system will take a rela...

Embodiment 2

[0061] Embodiment 2: reactive power test

[0062] Test conditions: the initial scheduling reactive power plan value is 10MVar; when t=200s, the scheduling reactive power planning value changes to 7.5MVar; when t=400s, the scheduling reactive power planning value changes to 2MVar; when t=600s, scheduling reactive power The planned value changes to -3.75MVar; when t=900s, the scheduled reactive power value changes to -7.5MVar. The test results are obtained, and the reactive power curve of the grid-connected point is given as Figure 7shown. It can be seen from the test curve that the reactive power control system of the wind farm can correctly control the reactive power of the grid-connected point to the planned value according to the dispatching instructions. When t=200s, the reactive power reference value of the wind farm changes from 10MVar to 7.5MVar. At this time, the reactive power reference value of the reactive power control system changes. The reactive power referenc...

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Abstract

The invention provides a system and method for testing a wind farm power control strategy. A wind farm power control strategy making module of the system comprises a network data receiving/transmitting module, a data analyzing module, a data-caching module, a data fault tolerance module, an active/reactive control module and a real-time data interaction module, wherein the network data receiving/transmitting module, the data analyzing module, the data-caching module, the data fault tolerance module, the active/reactive control module and the real-time data interaction module are connected in sequence. The output end of the data fault tolerance module is connected with the input end of the real-time data interaction module. Information interface is conducted between the wind farm power control strategy making module and a wind farm grid analog simulation module or an actual grid interface module through the network data receiving/transmitting module. According to the system and method for testing the wind farm power control strategy, wind farm operation information is received in real time, set power values of wind farm units and reactive-load compensation devices are sent to the corresponding wind turbine generator units and the corresponding reactive-load compensation devices in a wind farm at regular intervals according to the different power control strategies, finally a closed loop for testing the control performance of a wind farm active/reactive control system is formed, and the success rate of on-site putting into operation is improved.

Description

technical field [0001] The invention relates to a method in the field of wind farm control in new energy power generation technology, in particular to a test system and method for a wind farm power control strategy. Background technique [0002] In recent years, with the rapid development of wind power, the capacity of grid-connected wind farms continues to increase, and the voltage level of wind farms connected to the grid is getting higher and higher. According to the national energy strategic plan, by 2020, nine wind power bases of 10 million kilowatts will be built. Such a large capacity The integration of more wind power into the grid will bring many new problems to the stable operation of the power system. In response to these problems, a number of technical standards have been promulgated to guide wind power grid connection and production and operation. In 2012, the national standard GB / T19963-2012 "Technical Regulations for Wind Farm Connected to Power System" was r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B23/02
Inventor 钱敏慧姜达军陈宁赵大伟朱凌志张磊施涛罗芳曲立楠王湘艳韩华玲葛路明赵亮
Owner STATE GRID CORP OF CHINA
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