Study of combined type smart-grid u sing matrix converter

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This study is what proposes use of the power converter which used the matrix converter in order that a distribution system might improve the quality of it and be stable for the purpose for realizing a smart grid, It is the technique of making it possible simultaneously the stabilization using natural power sources of the fluctuating electric power of a distributed power source, and to supply high quality electric power to a consumer. The following things are mentioned as a result of this study.1. The method of controlling for the circuit configuration of the matrix converter for three phase 4-wire system-single phase 3 line type electric energy conversion for power distribution (it is called as single phase MC) and electric energy conversion was proposed.2. Becoming an obstacle of waveform shaping, since a negative phase components include in the input currents. Then, the power conversion system which does not contain a negative phase component in input current was proposed at the time of the powerconversion by single phase MC.3. Since the third harmonic wave component was contained in addition in the inputcurrent also in the proposed controlling method, harmonic current was reduced by connecting a input passive filter so that this third harmonic wave current might not be made to flow into the power supply side.4. Moreover, the controlling method which controls the amplitude and phase of output voltage when load or power supply voltage change was examined was proposed, and the effect was verified by the simulation.