摘要
在AC/MTDC系统静态电压稳定分析中,为充分考虑直流换流器不同控制方式之间的转换,分析了多端并联直流输电系统各种控制模式,提出了不同控制方式之间转换的整套策略。在考虑发电机功率限制以及直流参数越限导致控制方式转变的基础上用连续潮流法分析电压稳定。该方法用加入3端直流输电线路的新英格兰10机39节点算例系统进行测试,结果表明,本方法能够很好地处理电压稳定计算中由于运行条件的改变而导致的换流器运行方式转变。
In the steady voltage stability analysis of the AC/MTDC system, in order to consider the transformation in different control modes of the converter, all kinds of control modes in the parallel MTDC transmission system are analyzed in this paper. And the integrated strategy of the transformation in different control modes is also proposed. The voltage stability is analyzed in the continuation method, after considering the power limit of the generator and the control modes switching, which is caused by the change of operating conditions. This method is tested in the New England 10-machine-39-bus system, which is added a 3-terminal DC transmission line. It＇s proved that the control mode transformation in continuation method caused by the change of operating conditions can be settled correctly by the presented method.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2009年第24期5-10,共6页
Power System Protection and Control
关键词
电力系统
交直流
多端并联
运行方式
电压稳定
power system
AC/DC
multi-terminal parallel
operation mode
voltage stability
