摘要
对快速解列判据在多通道互联电力系统中应用的有效性进行了研究。根据系统振荡机理,以一个三机电力系统不同时解列为例,重点分析论证了快速解列判别通道失步振荡与否的判据:功角变化率判据和有功功率变化率判据,在本三机系统振荡模型不同时解列时应用的理论正确性。在三机系统上使用BPA仿真,用来初步验证本判据对多通道不同时解列结论推理的合理性,同时也验证了快速解列判据在复杂多通道电力系统的适用性。在南方电网模型中仿真,进一步验证在多通道不同时解列时,使用快速解列判据可加速剩余通道解列进程,提高子系统的稳定度。
The validity of the application of fast splitting criterion in multi-channel interconnected power system was studied. According to the system oscillation mechanism, taking a three-machine power system with asynchronism splitting as an example, this paper focuses on the fast splitting criterion for the channel out-of-step oscillation, and studies the theoretical correctness that power angle change rate criterion and active power change rate criterion were applied in the oscillating model of this three-machine system with asynchronism splitting. The rationality of this criterion used for multi-channel asynchronism splitting was preliminarily verified with using BPA simulation in the three-machine system, as well as the applicability of fast splitting criterion in complex multi-channel power system. Finally, this paper further validates that the fast splitting criterion could accelerate the splitting process of remaining channel and improve the stability of the subsystem during multi-channel asynchronism splitting, through the model simulation of China Southern Power Grid.
出处
《电力建设》
2014年第4期38-43,共6页
Electric Power Construction
关键词
快速解列
多通道
功角变化率判据
有功功率变化率判据
不同时解列
fast splitting
multi-channel
power angle change rate criterion
active power change rate criterion
asynchronism splitting
