两级半开式串联电站双PID并联调节器运行稳定性  

Operating stability of half-opened cascaded hydropower stations with double-PID governors

作　　者：韩标[1] 樊红刚[1] 陈乃祥[1] 

机构地区：[1]清华大学热能工程系,水沙科学与水利水电工程国家重点实验室,北京100084

出　　处：《清华大学学报（自然科学版）》2010年第7期1042-1046,1052,共6页Journal of Tsinghua University(Science and Technology)

基　　金：国家自然科学基金资助项目(50879037)

摘　　要：为了解决站间用明渠及管道连接的半开式梯级串联电站发电系统的水位及频率综合控制问题,提出一种双PID调节器。该调节器对由梯级电站所有机组构成的系统进行联合调节,稳定机组转速和站间水位,最终使梯级串联电站联合稳定运行。将该调节模型应用于由明渠及管道连接的某安装混流式机组的两级梯级电站,对电站正常运行及小波动等过程进行数值模拟,结果表明:该调节器模型能够在稳定机组频率的同时控制住站间水位,解决该电站运行稳定性问题。A double-PID tuning model was used to achieve stable operation of half-opened cascaded hydro electric power stations,connected by open channels and pipes.The combined control of the power station system stabilizes the speed and water level between stations to achieve the steady operation.The model was applied to a two-step cascaded station with Francis turbines connected by open channels and pipes.The simulations show that the double-PID governor can control the generator speeds and the inter-station water level.

关 键 词：水位及频率综合控制 双PID 梯级串联水电站 运行稳定性 

分 类 号：TK72[动力工程及工程热物理—流体机械及工程]