摘要
从熵理论角度出发,对现有的潮流转移熵模型进行改进,综合考虑转移潮流的分布均衡性及各线路的负载率,提出了一种考虑改进潮流转移熵的电力系统融冰预防控制方法。该方法将改进的潮流转移熵作为约束条件引入到控制模型中,将发电机出力再调整作为重点控制措施,得到融冰预防控制模型。通过对IEEE-30系统进行仿真,结果证明该方法提出的控制策略能够有效减小因融冰断线对系统造成的冲击,降低了系统断线后的状态综合严重度,有效提高电力系统在冰灾情况下的安全水平。
From the perspective of entropy theory, the transfer entropy of power flow model was improved by taking the distribution of transfer power flow and loading rate of transmission lines into consideration. An algorithm of ice-melting preventive control was proposed for power system with the consideration of improved transfer entropy of power flow. This method added the improved transfer entropy of power flow into the preventive control model as constraint condition, regarding the adjustment of generator output as the key control measure. The simulative result of IEEE 30-bus system verifies that by taking the preventive control strategy from this method, the impact of breaking line to power system is greatly decreased, and the system comprehensive severity is down to a relatively low level. The security of power system in ice disaster is improved.
出处
《电网技术》
EI
CSCD
北大核心
2015年第2期582-586,共5页
Power System Technology
关键词
熵理论
融冰
改进潮流转移熵
预防控制
安全性
entropy theory
ice-melting
improved transferentropy of power flow
preventive control
security
作者简介
曾珂（1990），男，硕士研究生，研究方向为熵理论在电力系统中的应用、电力系统安全性评估，E-mail：zengke90@126．com；
李华强（1965），男，博士，教授，长期从事电力系统分析、稳定及优化问题研究；
刘沛清（1989），男，硕士研究生，研宄方向为电力系统安全性评估、电力系统不确定性。
