电网环境测试系统建模与仿真研究

Research on Modeling and Simulation of Distribution Network Test Environment

为了严格控制并入电网的风机质量,保证电网运行的可靠性,需要搭建一个能模拟真实电网环境的测试系统,对风机性能进行测试。真实的电网环境能够涵盖电力系统的大部分情况。当电力系统正常运行或发生故障情况下对风机进行测试,保证测试的可靠性和可信性。本文利用simulink搭建了完整的测试系统,通过模拟单相金属接地故障以及单相非金属接地故障进行测试,将仿真结果与理论情况对比,验证了该系统的有效性。

In order to strictly control the quality of wind turbines connected to the power grid and ensure the reliability of power grid operation,building a test system which can simulate the real grid environment and test the performance of a wind turbine is important.The real grid environment can cover most situation of the power system.The situation means when the power system is operating normally or in the event of a fault,the wind turbine is tested to ensure the reliability and credibility of the test.In this paper,a complete test system is built by simulink.Tested by simulating single-phase metal ground faults and single-phase non-metal ground faults.The simulation results are compared with the theoretical ones to verify the effectiveness of the system.