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发明公开
CN106610465A 一种大规模分布式电源并网孤岛检测方法 无效 - 驳回

一种大规模分布式电源并网孤岛检测方法
摘要：
本发明涉及电力系统的技术领域，尤其涉及一种大规模分布式电源并网孤岛检测方法。本发明是将混沌特性及Lyapunov指数引入分布式电源并网孤岛检测中，在测试过程中，全程记录分布式电源的Lyapunov指数以便于对分布式电源进行准确可靠的孤岛检测。本发明减小了传统孤岛检测盲区，提高了被动孤岛检测的准确性和可靠性，将大规模分布式电源孤岛转换过程中混沌特征参数的变化应用于大规模分布式电源被动孤岛检测，能够有效避免传统被动孤岛检测方法由于运行工况变化而造成孤岛检测误动作的现象。
摘要（英）：

The invention relates to the technical field of an electric power system, and particularly relates to a large-scale distributed power supply grid-connected island detection method. The large-scale distributed power supply grid-connected island detection method is characterized in that a chaotic characteristic and a Lyapunov index are introduced into distributed power supply grid-connected island detection, and the Lyapunov index of a distributed power supply is recorded in the whole course in the testing process so as to perform accurate and reliable island detection on the distributed power supply. The method provided by the invention reduces a dead zone of traditional island detection, improves the accuracy and the reliability of passive island detection, applies parameter variations of the chaotic characteristics in the large-scale distributed power supply island conversion process to large-scale distributed power supply passive island detection, and can effectively avoid a phenomenon that a traditional passive island detection method causes island detection misoperation because of variations in operation condition.

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