一种增强的分散发电机自动自主励磁控制

S. Sishuba, M. Redfern
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引用次数: 0

摘要

越来越多的分散发电机出现在公用事业网络中,给配电系统的运行和控制带来了问题。在许多情况下,大部分分散发电不包括在基于通信的控制系统中,因此难以协调这些发电机的运行。本文介绍了一种分布式发电机励磁系统智能控制的自动自主控制策略。它使用专家系统技术提供电压支持和必要的电压跟随励磁控制模式。该控制策略的含义是,在电力系统扰动时,分散发电机可以用来支持电网,但在正常情况下,当电网并网时,发电机作为电压从动器运行。专家系统还可以使分散的发电机在突然失去连接后与电网隔离运行。通过仿真研究,验证了专家系统在各种异常工况下的有效性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
An enhanced automatic and autonomous excitation control for dispersed generators
The increasing presence of dispersed generators in utility networks creates problems with regards to the operation and control of the distribution system. In many cases a large part of dispersed generation is not included in communication based control systems making it difficult to coordinate the operation of these generators. This paper introduces an automatic and autonomous control strategy for intelligent control of the excitation system of the dispersed generator. It uses an expert system technique to provide voltage support and voltage following modes of excitation control as necessary. The implication of the control strategy is that the dispersed generator can be used to support the network during power system perturbations but is operated as a voltage follower under normal conditions when the network is grid connected. The expert system also makes it possible for the dispersed generator to operate isolated from the grid following the sudden loss of the connection. Simulation studies are used to demonstrate the effectiveness of the expert system under a variety of abnormal operating conditions.
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