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This paper proposes a control method of a matrix converter in a micro grid system to obtain stable islanded operation. The islanded operation using a matrix converter needs a voltage feedback control to assume the matrix converter as a constant voltage power supply for the load. On the other hand, the islanded operation also requires a generator current control with a feedback to determine provided...
This paper proposes a switching method and a LC design method in order to suppress the distortion of the input current which occurs in a high efficiency AC-AC converter. The proposed AC-AC converter which is used in online-type Uninterruptible Power Supplies (UPS) is constructed by a T-type three-level rectifier and a T-type three-level inverter. The switching loss of the proposed AC-AC converter...
This paper presents an isolated type of single-phase matrix converter topology for PHV/EV on-board battery chargers. The proposed converter is comprised of a full bridge inverter, a high frequency transformer and a matrix converter. Due to the lack of DC link bus in matrix converter, in order to suppress the power fluctuation, a power decoupling method which only employs a center-tapped high frequency...
This paper presents an isolated DC to single-phase AC converter using a matrix converter for HVDC (higher voltage direct current) power feeding system. The proposed converter comprises a full bridge inverter, a high frequency transformer and a matrix converter and does not use a bulky electrolytic capacitor. Then, in order to reduce a ripple component in a DC bus current caused by the single-phase...
This paper verifies an isolated DC-AC power converter using a single phase to three phase matrix converter in experiment. A matrix converter does not require the large reactors and the large smoothing capacitors in a DC-link part. Furthermore, the proposed control method enables zero voltage switching of the matrix converter by implementing a phase shift control on the primary inverter and a pulse...
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