基于混合仿真的逆变器并网测试平台设计与实现

摘要

提出基于混合仿真的逆变器并网测试平台，它由数字仿真器（ RTDS ）和功率接口装置及被测设备组成。在并网点处模拟电压暂降、不平衡运行及谐波扰动等电网故障，测试并网逆变器的并网性能，测试结果验证了混合仿真平台的正确性与可靠性。该平台的建立有利于对新能源设备及逆变器的建模和仿真，为研究与测试并网逆变器的并网特性，暂态特性与控制提供实时的仿真基础。%In this paper , inverter grid test platform that based on the hybrid simulation is put forward .It is composed of digital simulator ( RTDS) , power interface device and equipment to be tested .When the grid inverter and branches are under the condition of power grid failure , the device can simulate the voltage sag , unbalance and harmonic dis-turbances such as faults .It can test the grid performance , and the test proves the correctness and reliability of the hy-brid simulation test platform .The establishment of the platform is beneficial to the new energy and modeling and simu -lation of the inverter .The platform provides real-time simulation basis for the research and test grid characteristics , the transient characteristics of grid inverter control .