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Constant pressure water supply system is a complex time-delay system which makes it difficult to ensure the good control performance and fast response in the working condition for traditional PID control. This paper presents a speed control system of constant pressure pump unit based on fuzzy self-tuning PID control strategy which can realize parameter tuning of PID real-timely. According to a real...
Based on Variable Universe fuzzy control technology with good adaptive and robust capability, a new excitation control strategy for DFIG(doubly fed induction generator) without accurate generator mathematical model is proposed in this paper. Full fuzzy excitation control model is established and analyzed in detail. the whole wind generation system model Was established, simulation results indicate...
For the variable pitch grid-connected wind turbine maximum power tracking and improved power quality problems, using new double-fed machine constitutes a wind turbine, based on vector control and the whole fuzzy controller is used to achieve brushless doubly-fed variable speed constant frequency motor control. Self correct factor of fuzzy was introduced in the fuzzy controller design process. The...
In order to most effectively utilize the wind energy and improve the efficiency of wind generation system, an optimum control strategy of doublyfed induction generators (DFIG) was proposed, which made the system operation for both the maximum wind enemy captured below the rated wind speed. Based on the wind turbine characteristics and basic electromagnetic relationship of DFIG the mathematical models...
Coke oven heating system is the large inertia, nonlinear, time delay, time-varying coupling and models difficult to accurately establish characteristics. A feedforward, feedback and combination of fuzzy adaptive PID control strategy is proposed. A fuzzy controller is designed to achieve. The controller has three kinds of control over the advantages. Coke oven heating system for fast response, anti-disturbance...
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