단상 전압 소스 인버터의 고조파 왜곡 보상을 위한 비례다중 공진 제어기에 관한 연구 = A study on proportional multiple-resonance controller for harmonic distortion compensation of single phase VSIs

다국어 초록 (Multilingual Abstract)

In this paper, simulation and experimental results are presented, including the implementation of a digital controllerfor robust output voltage control of a single-phase voltage source inverters (VSIs) and total harmonic distortion(T.H.D.v) analysis. Typically, the VSIs uses a proportional integral (PI) controller for the current controller on the innerloop and a proportional resonant (PR) controller for the voltage controller on the outer loop to control the outputvoltage. However, non-linear loads still produce high-order odd harmonic distortion. Therefore, in this paper, aproportional multiple resonance (PMR) controller with a resonance controller for odd harmonic frequencies isproposed to suppress harmonic distortion. Analyze the frequency response of controllers for VSI plants and designPMR controllers. Through simulation, the total harmonic distortion characteristics of the output voltage are comparedand verified when PI and PMR are used as voltage controllers. Both linear and non-linear loading conditions wereconsidered. Finally, the effectiveness of the PMR controller was demonstrated by applying it to a 3kW VSIs prototype