Title :
Displacement angle control of matrix converter
Author :
Oyama, Jun ; Xia, Xiarong ; Higuchi, Tsuyoshi ; Yamada, Eiji
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Nagasaki Univ., Japan
Abstract :
The authors previously proposed and discussed a control method for matrix power converters in which instantaneous input voltages are used. The method can generate output voltages of 0.866 times the supply voltage. Control input current and output voltage of sinusoidal waveform can be obtained and can compensate the effect of fluctuation, asymmetry or harmonics in both the output voltage and the input current. In the method described in this paper, a combination of offline and online computation is used to enable input power factor control in order to realize real unity input power factor. The authors discuss a switching sequence during one carrier period by which the input current waveforms can be greatly improved without increasing switching losses
Keywords :
AC-AC power convertors; compensation; control system synthesis; electric current control; harmonic distortion; power factor correction; power system harmonics; switching circuits; voltage control; displacement angle control; input current; input power factor control; matrix power converter; output voltage; sinusoidal waveform; switching losses; switching sequence; unity input power factor; waveform asymmetry; waveform fluctuation; waveform harmonics; Bidirectional control; Circuits; Control theory; Displacement control; Fluctuations; Matrix converters; Reactive power; Switches; Switching converters; Voltage control;
Conference_Titel :
Power Electronics Specialists Conference, 1997. PESC '97 Record., 28th Annual IEEE
Conference_Location :
St. Louis, MO
Print_ISBN :
0-7803-3840-5
DOI :
10.1109/PESC.1997.616862
