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Extended Load-Flow Arithmetic for Voltage Stability Analysis

机译:用于电压稳定性分析的扩展潮流算法

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In this paper, a novel load-flow arithmetic for voltage stability analysis is studied where models of various dynamic elements in power systems are taken into account. It simultaneously solves the load flow equation and the state equation of dynamic elements and gets both the voltage amplitude, phase of all buses and the inner state variables of the dynamic elements. In this arithmetic different limits are considered and the assumption of PV bus, PQ bus and slack bus are eliminated, so the result is closer to the real operation condition. Using a flow arithmetic based on continuation -power-flow (CPF) method, the critical point of voltage stability of system can be computed. The proposed method is demonstrated on a test system and the results are compared with the conventional power flow method.
机译:本文研究了一种用于电压稳定性分析的新型潮流算法,其中考虑了电力系统中各种动态元素的模型。它同时求解动态元件的潮流方程和状态方程,并获得电压幅值,所有母线的相位和动态元件的内部状态变量。在该算法中,考虑了不同的限制,并消除了PV总线,PQ总线和松弛总线的假设,因此结果更接近实际工作条件。使用基于连续功率流(CPF)方法的流量算法,可以计算系统电压稳定性的临界点。在测试系统上演示了该方法,并将结果与​​传统的潮流方法进行了比较。

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