PRETEND DESIGN OF A 9-LEVEL & 27-LEVEL MLI-DSTATCOM FOR REACTIVE POWER COMPENSATION IN PS

This article deals with the look and implementation of a construction voltage supply convertor (VSC) primarily based Distribution static synchronous compensator (DSTATCOM) and using an efficient modulation management technique simulated in a very MATLAB/Simulink atmosphere for triggering the switches of the VSC (PWM). A MATLAB program has been developed to simulate the system operation and numerous simulation results area unit given below completely different conditions .The main objective of this project is to take care of the voltage stability by compensating the reactive power within the facility. Hence, a brand new economical methodology accustomed scale back the voltage fluctuations like sag and swell conditions and conjointly to isolate current and voltage harmonics within the gear mechanism. The construction DSTATCOM which might be used at the purpose of common coupling (PCC). The performance is compared by applying it to a hundred and ten potential unit conductor with and while not DSTATCOM. The system while not STATCOM technique during this project has the subsequent faults Voltage sag and voltage swell, Harmonics and interharmonics, Voltage fluctuations. So, during this project reactive power compensation is chosen to enhance the performance of the ac system. The compensation achieved by victimization 2 kinds of STATCOM: 9 levels STATCOM and twenty seven levels STATCOM. At the end, there's a comparative study between them. reckoning on the outputs; one in every of them are preferred for the load, that reckoning on what the profile of voltage, current, active and reactive power deliver to the load. The higher one is that delivered constant and stabile voltage to the destination space