弱受端系统利用SVG提升输电能力研究  

Study on the Transmission Capacity Improvement in Weak Receiving AC System by SVG

作　　者：刘子俊 亢朋朋 高玉喜 LIU Zijun;KANG Pengpeng;GAO Yvxi

机构地区：[1]南京南瑞继保电气有限公司,江苏南京211102 [2]国网新疆电力有限公司,新疆乌鲁木齐830092

出　　处：《青海电力》2022年第4期23-27,共5页Qinghai Electric Power

摘　　要：电压稳定问题是受端电网的主要问题之一,对于弱受端系统而言,电压稳定问题更加突出,制约了电网的供电能力。SVG作为新一代FACTS技术的典型代表,可有效加强弱系统的动态无功支撑能力,提升电网电压稳定性,因此开展了利用SVG提升弱系统输电能力的研究。首先,基于PSASP软件进行SVG的自定义建模;其次结合RTDS硬件在环仿真、人工短路试验,验证了自定义模型的准确性;最后基于自定义模型开展机电暂态仿真分析,论证了利用SVG提升弱系统输电能力具有可行性。The problem of voltage stability has become one of the main problems of the receiving AC System.For the weak receiving AC System,the problem of voltage stability is more prominent,which restricts the power supply capacity of the grid and affects the production and life of the people.As a typical representative of the new generation of FACTS technology,SVG can effectively strengthen the dynamic reactive power support capacity of weak systems and improve the stability of grid voltage.A study on improvement of the transmission capacity of weak systems by use of SVG is made.Firstly,the customized model of SVG is built by use of PSASP software.Secondly,the accuracy of the customized model was verified by RTDS test and artificial short circuit test.Finally,based on the customized model,electromechanical transient simulation analysis is carried out to demonstrate the feasibility of using SVG to improve the transmission capacity of weak system.

关 键 词：电压稳定 SVG自定义建模 RTDS 机电暂态 

分 类 号：TM472[电气工程—电器] TM744