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Look-ahead based method for selection of preventive control for voltage stability analysis

机译:基于展开的预防控制,用于电压稳定性分析的预防控制方法

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In recent years, the analysis of voltage stability has become crucial for the proper operation of electrical power systems, especially when it comes to large systems. The need for effective voltage control strategies have been brought to evidence in a considerable number of studies, as power system loads are located farther away from power plants and losses have tended to increase due to heavier power flows over long distance transmission loads. A new methodology for selection of the most effective controls to prevent voltage instability in electrical power systems is developed in this paper. The proposed methodology is fast and suitable for real time operation. It is based on a sensitivity analysis of both a maximum loadability estimate (which is obtained via Look-Ahead method) and the load flow solution with respect to the selected controls. The methodology was successfully tested in two systems: the reduced equivalent model of the southern Brazilian system (represented by a 33-bus model) and the south-southeast Brazilian interconnection (represented by a 65-bus model).
机译:近年来,电压稳定性的分析对于电力系统的适当运行至关重要,特别是在大型系统方面。在相当数量的研究中,对有效电压控制策略的需求已被带到证据,因为电力系统负载远离发电厂,并且由于长距离传输负载超过较重的功率流动,损耗趋于增加。本文开发了一种新的方法,用于选择以防止电力系统中的电力系统中的电压不稳定的最有效控制。所提出的方法是快速的,适合实时操作。它基于对最大可加载性估计的灵敏度分析(通过寻找前进方法获得)和相对于所选控制的负载流程解决方案。该方法在两个系统中成功测试:巴西南部的等效模型(由33总线模型代表)和南东南巴西互连(由65母线模型代表)。

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