特高压交直流系统的稳定控制仿真研究
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摘要
随着电力系统的发展,纯机电暂态仿真和电磁暂态仿真在分析大规模特高压交直流混合电网时已呈现明显不足.为了准确地分析特高压交直流输电系统的动态特性,基于电力系统全数字实时仿真平台(ADPSS)搭建了特高压交直流输电系统的机电—电磁暂态混合仿真模型,并对整流侧和逆变侧交流母线故障进行了仿真分析.结果表明,所设计的仿真模型可以有效地掌握直流系统内部器件的详细动态过程,并且为特高压交直流系统的稳定控制提供技术支持和理论指导.
With the development of the electric power system,the electromechanical transient simulation and electromagnetic transient simulation have been shown to be insufficient in the aspectsof Large-scale power system simulation.In order to accurately analyze the dynamic characteristics of UHV DC transmission system,the model of the electromagnetic-electromechanical transient hybrid simulation and the electromechanical transient simulation were built in the Advanced Digital Power System Simulator(ADPSS).The AC bus fault happening at the rectifier side and inverter side are simulated and analyzed.The results showed that the whole or local simulation results of the electromechanical-electromagnetic hybrid simulation can effectively grasp the detailed dynamic process of the internal components of the DC system,and provide technical support and theoretical guidance for the stability control of the UHV AC/DC system.
With the development of the electric power system,the electromechanical transient simulation and electromagnetic transient simulation have been shown to be insufficient in the aspectsof Large-scale power system simulation.In order to accurately analyze the dynamic characteristics of UHV DC transmission system,the model of the electromagnetic-electromechanical transient hybrid simulation and the electromechanical transient simulation were built in the Advanced Digital Power System Simulator(ADPSS).The AC bus fault happening at the rectifier side and inverter side are simulated and analyzed.The results showed that the whole or local simulation results of the electromechanical-electromagnetic hybrid simulation can effectively grasp the detailed dynamic process of the internal components of the DC system,and provide technical support and theoretical guidance for the stability control of the UHV AC/DC system.
引文
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