Research on Feedforward Fuzzy Control of Transformer Coolers in Large Scale Gas-fired Power Plants
Concerning the large load fluctuations of transformers in large scale gas-fired power plants,a feedforward fuzzy control strategy is proposed for transformer coolers,in which the cooler groups are switched on/off according to con-trol instructions.The fuzzy control rules are further extracted from the principle of oil-forced air-forced(OFAF)coolers with the purpose to regulate the oil temperature in a feedback way.Moreover,the feedforward control is formed to compensate the disturbances from power of transformer.A simulation model is then constructed in Simulink platform to convince the feasibility and effectiveness of the proposed feedforward fuzzy control strategy.The results in two actuation modes are then compared to show the advantages of cooler group switching control.
power transformerforced-oil and forced-air coolersfeedforward fuzzy controlcooler group switching control
万方数据
维普
