Simulation and experiment of three-phase controlled rectifier employing matrix converter theory

Based on topology and switching function matrix of three-phase to three-phase matrix converter, topology and switching function of a three-phase controlled rectifier is established, including three cases of the maximum voltage transfer ratio 1/2, √3/3 and √3/2. Its basic conversion performances are implemented after analysis in theory and by simulation. It is shown by obtained results that it has good features such as variable output voltage amplitude, input current zero displacement and bi-directional power flow. One-step commutation strategy, namely modified four-step is also employed, which can reduce commutation time and commutation effects on converter performance.