采用可变等值注入法的等值潮流算法

An Equivalent Power Flow Algorithm Using Variable Equivalent Injection Method

根据网络分析理论提出了一种等值注入可变的系统等值模型，并由其原理给出了采用可变等值注入法的电力系统等值潮流算法。其特点是：等值计算即使是在非基态情况下仍具有较高的精度，并且对外部系统运行条件的变化有较好的响应能力。通过ＩＥＥＥ标准试验系统进行了实际计算与分析。计算表明：算法的原理正确，较之常规的等值方法，计算更准确，收敛性更好。

This paper presents an equivalent model of variable equivalent injection based on the network theory. Applying this principle, an equivalent load flow algorithm can be the obtain using variable equivalent injection method.The characteristics of this algorithm is that the equivalent calculation has higher precision even under non fundamental states and better responsiveness to the changes of operation condition of external systems. In the paper, satisfactory results are obtained from the calculation and analysis of IEEE standard test systems etc. It shows that the principle of the algorithm is correct. Comparing with normal equivalent algorithm, it is more accurate and btter convergence.