Power Quality Improvement of Hybrid Wind, Solar & Diesel Generator Energy Systems using Fuzzy Logic and Hysteresis Loss Current Control of D-Statcom, with Power System Planning
Journal Title: International Journal of Engineering Sciences & Research Technology - Year 30, Vol 3, Issue 5
Abstract
Application with renewable energy sources such as solar cell array, wind turbines and diesel generator have increased significantly during the past decade. To obtain the clean energy, the hybrid solar–wind power generation is used. Consumers prefer quality of power from suppliers. The quality of power can be measured by using parameters such as voltage sag, harmonic and power factor. To obtain the quality of power different topologies are used. Due to diesel generator the harmonic disturbance in the transmission line will be increased. By implementing the D-STATCOM harmonics compensation technique, the harmonics are reduced. The several different aspects of the PV systems and the most widely addressed technical scope is on developing various PV models integrated with the maximum power-point tracking (MPPT) function. Maximum Power Point Tracking (MPPT) control is attained by intellectual controller. Intellectual controller is controlled by optimal utilization control. Wind power, solar power, diesel engine and an intellectual controller are used in existing method. The MPPT technique has a lot of limitation, so PQ theory with hysteresis loss current control algorithm is introduced to overcome this problem. In this work, D-STATCOM voltage source inverter (PWM-VSI) is connected between diesel generator and load which compensates harmonics in the AC grid. Implementation of the harmonics compensation by using D-STATCOM in the hybrid distribution system is used to attain the voltage stability. Here, Fuzzy logic algorithm with hysteresis loss current control method is used for harmonic reduction using D-STATCOM. The objective of this work is to show that with an adequate control, the converter not only can transfer the DC from hybrid solar wind energy system, but also can improve the power factor and quality power of electrical system. Whenever a disturbance occurs on load side, this disturbance can be minimized using open loop and closed loop control systems. Computer simulation results are presented to verify the performance of the proposed PWM-VSI by using MATLAB software
Authors and Affiliations
S. UmaMaheswari*1
Keywords
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