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Home > Archives > Volume 20, No 8 (2022) > Article

DOI: 10.14704/nq.2022.20.8.NQ44726

Improved Fuzzy Controlled Wind Turbine with A Permanent Magnet Synchronous Generator using Pulse Width Modulation Technique

Ankur Jyoti Das, Papumoni Saikia

Abstract

Wind turbine generators seek independent operation over the whole wind speed range below hurricane conditions. In this paper, it is essential to construct a full-scope feedback control system for the wind turbine voltage, current, active power and reactive power to achieve this goal.The gearbox design is very complex and needs frequent oiling, putting more mechanical stress on the wind turbine.Hence, a gearless wind turbine design is neededto make the wind turbine more reliable, reducing downtime and repair costs and increasing productivity. Taking three different wind speeds, a proposed modelis made in Matlab/ Simulink software. This research introduces enhanced fuzzy rules basedon two controllers,one on the generating side and one on the grid side,that can control the turbine’s voltage, currentactive power and reactive power.The two converters, namely rotor(generating) side converters,control the active power via a Mamdani-based fuzzy controller via pulse width modulation and the second converter grid side converter is also Mamdani based fuzzy controller via pulse width modulationtechnique which synchronizes the grid voltage with generating voltage of wind turbine and also controls the reactive power. Following the explanation of various essential principles regarding small-scale wind turbines, building a Mamdani-based fuzzy logic (Mamdani et al., 1975) controller is described. PI controllers have high starting overshoot, sensitivity to controller gains and sluggish response to controller gains.So the fuzzy controller intelligently widens the range of operating conditions, and they are more readily customizable in neutral language terms,stability is better, small overshoot and fast response. 17 kilovolts, 490 amperes, 12 MW of active power, and 1.5 Mvar of reactive power have been achieved using the suggested conceptin Matlab /Simulink software.

Keywords

Wind Speed, Fuzzy Logic, PI, MATLAB, Voltage (KV), Current (A), Activepower (MW), and Reactive Power (Mvar)

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