摘要
本文提出一种关于同步发电机运行变量的实时算法。同步发电机的一些运行变量可以直接测量,而某些运行变量不易获得。文中提出的算法只需利用发电机端电压及电流的采样数据进行计算便可获得发电机运行点的信息。这种算法不需要高的采样速率,运算速度快,并且经数学证明是正确的,在IBM—PC机上的仿真结果也显示出满意的精度。因此它可以应用于同步发电机的微机控制,特别是变参数控制。
A real-time algorithm for determining operating variables of synchronous generators in power systems is presented. It is known that some of the operating variables are easy to measure directly but some are difficult. The proposed algorithm needs only making use of the sample data to carry out the calculation and the information of the current operating point of the generator is conveniently obtained. This algorithm doesn't require high sampling rate and high computation speed. It proves to be correct mathematically. The simulation results on an IBM-PC show that the accuracy is satisfactory. Hence the algorithm is applicable to the control of microcomputers, especially of the variable parameters of synchronous generators.
