摘要
阐述了直流系统换相失败和功率恢复特性,并在PSS/E中建立用于电力系统机电暂态过程仿真的直流输电准稳态模型,模拟交流系统故障后直流系统的响应特性。分别用PSS/E和BPA程序对广东电网某年规划方式数据进行了仿真计算,以500 kV北郊—罗洞线路N-1故障为例,分析PSS/E与BPA中直流系统换相失败及后续功率恢复特性的不同。计算结果表明,对于远方系统故障,两个程序的计算结果比较接近,而PSS/E在模拟近处交流系统故障后直流系统的响应特性方面更符合实际情况。
The commutation failure and the power recovery characteristics of the HVDC systems are elaborated. The pseudo steady-state HVDC dynamic model is established using PSS/E so as to simulate the HVDC response characteristics after the AC fault in the electromechanical transient simulation. A planning year data of Guangdong Power Grid is simulated on the platform of PSS/E and BPA respectively. Taking the ＂Beijiao-Luodong＂ 500 kV line ＂N-I＂ fault for example, the difference of the HVDC commutation failure and subsequent power recovery characteristics between PSS/E and BPA is analyzed. The results show that the calculation results of two programs are relatively close when the AC fault is far away from the HVDC system. However, the HVDC response characteristics in PSS/E are more in line with the actual situation, when the AC fault is near the HVDC system.
出处
《高压电器》
CAS
CSCD
北大核心
2013年第12期116-122,共7页
High Voltage Apparatus
关键词
电力系统仿真软件PSS
E
BPA软件
换相失败
直流模型
直流动态特性
power system simulator for engineering（PSS/E）
bonneville power administration（BPA）
commutation failure
HVDC model
HVDC dynamic characteristic
