规模化小水电群功率快速控制系统及其在贵州电网中的应用

Power rapid control system based on scaled small hydropower stations and it’s application in Guizhou power Grid

贵州地区水能资源丰富,小水电站众多,但基本处于无人管控的“盲调”状态。如何让小水电站实时响应调度指令,进行功率调节,具有一定的研究价值和实际的工程意义。本文基于小水电站功率可快速控制的特点,同时克服单个小水电站功率调节能力有限的缺点,提出了规模化小水电群功率快速控制系统整体架构,提出了包含有功功率和无功功率快速控制策略,应用于嵌入式控制设备,将位于同一地区的小水电站组成规模化小水电群,协同快速地实时响应上级控制系统功率控制指令,通过励磁调节系统实现无功功率的快速控制,通过调速系统实现有功功率的快速控制。相关研究成果在贵州电网六盘水地区5座小水电站的良好示范应用案例,验证了所研制的嵌入式控制设备的有效性,体现了该示范工程的可行性。

Guizhou is rich in hydropower resources,and there are many small hydropower stations,but they are basically in a state of M blind controlw without any control.How to make small hydropower stations respond to dispatching instructions in real time and regulate power has certain research value and practical engineering significance.Based on the characteristics of fast power control of small hydropower stations,this paper overcomes the shortcomings of limited power regulation ability of single small hydropower stations,and develops an embedded control equipment for small hydropower stations,which integrates active power and reactive power fast regulation functions,it makes the small hydropower station located in the same area be composed of large-scale small hydropower groups,which can respond to the power control commands of the superior control system in real time in coordination,and realize the rapid control of reactive power through the excitation regulation system,and realize the rapid control of active power through the speed regulation system.The relevant research results in the good demonstration application case of five small hydropower stations in Liupanshui area of Guizhou power grid verify the effectiveness o￡the embedded control equipment developed and reflect the feasibility of the demonstration project.