Power quality improvement using ultra capacitor based dynamic voltage restorer with real twisting sliding mode control

Introduction. Power quality is a major problem in today's power system, since it may have an impact on customers and utilities. Problem. important issue of financial consequences for utilities, their consumers load apparatus vendors. Voltage sag/swell are the most significant usually occurring issues secondary distribution system sensitive loads. Goal. Dynamic voltage restorer fast, flexible, effective dynamic custom device can be used to compensate with integration energy storage. Ultra capacitors ideal properties great density low elimination sag/swell. Their performance mostly determined by control strategy established switching source converters. Originality. In this research, converter based real twisting sliding mode ultra capacitor developed correct fault that successfully eliminates impacts Methodology. along gives more robustness faster response, also increasing compensation time restorer. Testing environment. To evaluate proposed approach, MATLAB / Simulink SimPower System tool box employed. Practical values. According Simulation results clearly shows effectively eliminate very short 2 ms as compared IEEE standards 20 ms, less than 5 % total harmonic distortion loads per Information Technology Industry Council Curve SEMI-F-47 Standards.