基于实时仿真的功率连接型数模混合仿真技术研究

摘要

In order to realize effects of complement each other’s advantages and optimization on simulation of combination of real-time simulation and physical simulation of power system,a method of ideal transformer model decoupling was used to realize power connection technology for all-digital real-time simulation device and physical simulation device and develop power exchange typed digital-analog connector. Meanwhile,a digital-analog hybrid simulation model of large power grid system was built for experiment by using this power connection technology. Comparison analysis on results of digital-physical hybrid simulation test and all-digital simulation test indicated that this technology was of higher simulation precision,stability and good practical value.%为使电力系统实时数字仿真与物理模拟相结合达到优势互补、优化模拟的效果，采用理想变压器模型解耦的方法实现了全数字实时仿真装置与物理模拟装置的功率连接技术，开发了功率交换型数模连接器，并采用该功率连接技术搭建了大电网系统的数模混合仿真模型进行试验。该大电网系统的数字–物理混合仿真试验和全数字仿真试验的结果对比分析表明，该技术具有较高的仿真精度和稳定性，具有很好的实用价值。