Abstract
According to hydraulic subsystem specialty of hydro turbine speed governor system, the hydro turbine governor system control model with surge tank for hydraulic structure: reservoir-tunnel-surge tank-penstock-generator is established for the first time. The Hï‚¥ double loop hydro turbine speed governor system robust controller is designed considering the character of hydraulic and power load disturbance. The system parameters and power load disturbance simulation results demonstrate that the controller can effectively restrain impact of system parameters and power load disturbance, keep output speed stable, possess nice robust performance, compared to traditional PID controller, which has more excellent regulating ability of speed and rejection load disturbance performance.
Highlights
According to hydraulic subsystem specialty of hydro turbine speed governor system, the hydro turbine governor system control model with surge tank for hydraulic structure: reservoir-tunnel-surge tank-penstock-generator is established for the first time. turbine speed governor system rTohbeusHt condtoruobllleer loop hydro is designed considering the character of hydraulic and power load disturbance
In all the published hydro turbine paper, the hydro turbine is modelled by the ideal hydro turbine model, whose complex conduit system is simplified as reservoir-penstock-generator
Fannie Kong, School of Electrical Engineering, and Yan LI, School of Information Science and Engineering, Guangxi University for Nationalities, Nanning, Guangxi zhuang Autonomous Region, China the penstock is longer than 300-500m, the surge tank is set in conduit system
Summary
According to hydraulic subsystem specialty of hydro turbine speed governor system, the hydro turbine governor system control model with surge tank for hydraulic structure: reservoir-tunnel-surge tank-penstock-generator is established for the first time. turbine speed governor system rTohbeusHt condtoruobllleer loop hydro is designed considering the character of hydraulic and power load disturbance. According to hydraulic subsystem specialty of hydro turbine speed governor system, the hydro turbine governor system control model with surge tank for hydraulic structure: reservoir-tunnel-surge tank-penstock-generator is established for the first time. Turbine speed governor system rTohbeusHt condtoruobllleer loop hydro is designed considering the character of hydraulic and power load disturbance. In all the published hydro turbine paper, the hydro turbine is modelled by the ideal hydro turbine model, whose complex conduit system is simplified as reservoir-penstock-generator (no surge tank). Because of surge tank existence, the hydraulic power system transient process, water hammer, governor regulator characteristic and power system stability performance show distinct difference compared to that of ideal hydro turbine model. It is necessary to model the hydro turbine speed governor with surge tank and research its control strategy. The hydro turbine speed governor with surge tank is modelled considering the un-elastic water column turbine sepfefeedctg. oTvherenoHr isrodbesuisgtnecdonitnroolrdsetrrattoegiymporfovheydthroe control performance of load disturbance and system parameters excursion
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