孤岛微电网的分层自动化控制策略设计与仿真

Design and Simulation of Hierarchical Automation Control Strategy for Island Microgrid

雷亚东¹

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作者信息

1. 国网怀仁市供电公司,山西怀仁 038300
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摘要

为使电网组织中节点电压的实际幅值低于预设幅值,避免电量浪费的现象,针对孤岛微电网的分层自动化控制策略展开研究.以反馈控制器闭环结构为基础,建立完整的孤岛节点功率方程,再根据负荷潮流量的数值结果,完成对孤岛微电网潮流量的计算.从电量频率、电压量差、电流量差三个角度着手,分析微电网主机对于传输电量信号的控制能力,实现孤岛微电网分层自动化控制方法的设计.结果表明,随着分层自动化控制策略的应用,在低压(100～300 V)、中压(500～700 V)、高压(900～1 100 V)情况下,电网组织节点电压的实际幅值水平均能得到较好控制,其表现数值始终低于预设节点电压幅值,在控制电信号消耗量方面具有一定的应用价值.

Abstract

In order to make the actual amplitude of node voltage in power network organization lower than the preset amplitude and avoid power waste,the layered automation control strategy of isolated island microgrid is studied.Based on the closed-loop structure of feedback controller,a complete power equation of island node is established,and the power flow of island microgrid is calculated according to the numerical results of load flow.Based on the power frequency,voltage difference and current difference,the control ability of microgrid host to transmit power signal is analyzed,and the hierarchical automatic control method of isolated island microgrid is designed.Experimental results:With the application of hierarchical automatic control strategy,the actual amplitude level of the node voltage of the power network organization can be well controlled under the conditions of low voltage(100-300 V),medium voltage(500-700 V)and high voltage(900-1 100 V),and its performance value is always lower than the preset node voltage amplitude.It has certain application value in controlling electrical signal consumption.

关键词

孤岛微电网/自动化控制/反馈控制器/节点功率方程/潮流量/电压幅值

Key words

isolated island microgrid/automatic control/feedback controller/node power equation/tidal current volume/voltage amplitude

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出版年

2024

流体测量与控制

ISSN：

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