摘要
机-网暂态仿真中, 通常采用的ab0坐标系统建模较为复杂,在模拟不对称故障和开关操作时尤为困难。利用受控源理论和综合友模的方法建立可双向计算的Y,d类型变压器模型,解决了变压器两侧的变量变换不可逆的问题,使网络可在abc坐标系下求解。文中讨论了电力系统其他元件在abc坐标系下的模型,并进行了仿真实验。实验结果表明:与ab0坐标系统相比,abc坐标系统使模型得到简化,适用于任意对称和不对称系统的仿真研究。
The ab0 reference frame is usually used in simulation of generator-system transient. It is difficult to build model and simulate asymmetrical default or switch operation. Based on the theory of controlled source and synthetic companion, this paper builds model of Y,d transformer which can be calculated bidirectionally. The problem of irreversible conversion is solved and system is calculated in abc reference frame. Models of other elements in power system are also built in abc reference frame. Experimental results verify that compared to ab0 reference frame, abc reference frame simplifies element models and is suitable to simulation of random symmetrical or asymmetrical system.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2002年第6期30-33,共4页
Proceedings of the CSEE
