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1.东南大学电气工程学院,江苏省南京市 210096
2.中国电力科学研究院有限公司,北京市 100192
章飞(1986—),男,通信作者,博士,副研究员,硕士生导师,主要研究方向:柔性直流输电、电力系统仿真。E-mail:zhangfei@seu.edu.cn
周子凡(2001—),男,硕士研究生,主要研究方向:电力系统仿真。E-mail:220232929@seu.edu.cn
顾伟(1981—),男,博士,教授,主要研究方向:综合能源系统、电力系统仿真。E-mail:wgu@seu.edu.cn
收稿:2023-07-29,
修回:2023-10-25,
网络出版:2023-11-10,
纸质出版:2023-12-10
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章飞,周子凡,顾伟等.基于状态空间方程和开关函数的VSC电磁暂态仿真通用建模方法[J].电力系统自动化,2023,47(23):84-91.
ZHANG Fei,ZHOU Zifan,GU Wei,et al.General Modeling Method of Voltage Source Converter for Electromagnetic Transient Simulation Based on State Space Equation and Switching Function[J].Automation of Electric Power Systems,2023,47(23):84-91.
章飞,周子凡,顾伟等.基于状态空间方程和开关函数的VSC电磁暂态仿真通用建模方法[J].电力系统自动化,2023,47(23):84-91. DOI: 10.7500/AEPS20230729004.
ZHANG Fei,ZHOU Zifan,GU Wei,et al.General Modeling Method of Voltage Source Converter for Electromagnetic Transient Simulation Based on State Space Equation and Switching Function[J].Automation of Electric Power Systems,2023,47(23):84-91. DOI: 10.7500/AEPS20230729004.
随着新能源的快速发展,以电压源变换器(VSC)为代表的电力电子变换器在新型电力系统中得到广泛应用。电磁暂态仿真技术受限于仿真规模和计算效率,难以满足新型电力系统仿真分析的需求。文中提出了一种基于状态空间方程和开关函数的VSC通用建模方法,可以精确描述VSC对外端口特性,同时考虑了内部的开关状态,实现不同VSC拓扑结构的高效建模。此外,通过VSC状态空间方程的转换,该方法还可与采用节点分析法的传统电磁暂态求解算法耦合,消除VSC所在支路求解与系统全局解之间的时延。最后,通过与详细模型作为参考模型进行仿真对比,验证了所提建模方法的优点。
With the rapid development of renewable energy
power electronic converters represented by voltage source converters (VSCs) are widely used in new power systems. The electromagnetic transient simulation technology is limited by the simulation scale and computational efficiency
which makes it difficult to meet the demands of simulation and analysis of new power systems. This paper proposes a general modeling method of VSC based on state space equations and switching functions. The modeling method can accurately describe the external port characteristics of VSC
and the internal switching states are taken into account to realize the efficient modeling of different VSC topologies. Moreover
through the transformation of the state space equations of VSC
this method can also be coupled with the traditional electromagnetic transient solution algorithm using the nodal analysis method
to eliminate the delay between the solution of the branch where the VSC is located and the global solution of the system. Finally
the advantages of the proposed modeling method are verified by simulation comparison with the detailed model as a reference model.
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