计及温控负荷响应的二维云模型分布式频率控制

Distributed Frequency Control based on Two-dimensional Cloud Model Considering Response for Thermostatically Controlled Loads

中文关键词  多区域电力系统  二维云模型  温控负荷  分数阶PID  分布式控制

英文关键词  multi-area power systems  two-dimensional cloud model  thermostatically controlled loads  fractional-order PID  distributed control

中文摘要

      为改善电力系统频率稳定性，充分调用需求侧可控负荷资源，本文提出一种计及温控负荷响应的二维云模型分布式频率控制方法。建立了多区域互联电力系统负荷频率控制模型，设计了基于福克普朗克方程的温控负荷分布式控制策略，同时采用云模型算法与分数阶微积分理论，设计了二维云模型分数阶PID分布式频率控制器。最后通过控制仿真比较与分析，验证了在不同运行场景下所提出的综合控制方法具有较优的动稳态性能。结果表明该控制方法是可行和有效的。

英文摘要

      In order to improve the frequency stability of power system and fully use of the demand-side controllable load resources, the paper proposes a distributed frequency control method based on two-dimensional cloud model considering the response for thermostatically controlled loads. The load frequency control model of multi-area interconnected power systems is established, and a distributed control strategy of thermostatically controlled loads based on Fokker-Planck equations is designed. Meanwhile, the cloud model algorithm and fractional calculus theory are adopted, a distributed fractional-order PID frequency controller based on two-dimensional cloud model is designed. Finally, through control simulation comparison and analysis, it is demonstrated that the proposed integrated control method has better dynamic and steady-state performance in different operation scenarios. The results show that the control method is feasible and effective.