Abstract

The voltage stability analysis can be carried out using different continuation techniques. The continuation power flow that evaluates all power-flow solutions at different loading levels, is typically considered the most standard one. This approach is mainly based on two stages called predictor and corrector. The standard Newton–Raphson method is usually used at the corrector stage. In this paper, several corrector techniques based on efficient Newton-like methods are proposed in order to speed up the solution of continuation power flow. Consequently, two high order Newton-like methods as well as a fast corrector technique based on the Dishonest NR method have been proposed. A comprehensive study is addressed in order to check the suitability of the proposed corrector techniques compared with the standard Newton–Raphson (NR). Several small, medium, large and very large-scale test systems are used to achieve the validation. The obtained results prove the effectiveness and superiority of proposed techniques compared with the standard NR which conventionally used in corrector stage of the continuation power flow analysis in term of computational time.

摘要

可以使用不同的连续技术来进行电压稳定性分析。在不同负载水平下评估所有潮流解决方案的持续潮流通常被认为是最标准的。这种方法主要基于两个阶段，即预测器和校正器。通常在校正器阶段使用标准的牛顿-拉夫森法。在本文中，提出了几种基于高效牛顿法的校正器技术，以加快连续潮流的求解速度。因此，提出了两种类高阶牛顿法以及一种基于不诚实NR法的快速校正器技术。为了检查所提出的校正器技术与标准牛顿-拉夫森（NR）相比是否适用，进行了一项全面的研究。几个小，中，大型和超大型测试系统用于实现验证。相对于计算时间而言，在连续潮流分析的校正阶段通常使用的标准NR，所获得的结果证明了所提出技术的有效性和优越性。