Study of vector modulation and sliding model control for high frequency link inverter

Abstract

This paper discusses vector modulation and sliding mode control for a kind of high frequency link matrix inverter (HFLMC), and presents a kind ofDe-Re-couple analysis idea to the HFLMC. The De-Re-couple vector condition also has been induced. Especially aiming at its non-linear characteristic, this paper proposes a new control strategy called De-Re-couple vector modulation slide mode control and summarized the design steps of output voltage sliding mode controller. The accuracy is confirmed by closed loop simulation and Loop-locked experiment. The accordant results of MatLab simulation and experiment through DSP+CPLD controller confirm the feasibility of De-Re-couple analysis idea and validity of sliding mode control .And it provides the beneficial information for the further research.