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Microturbine generator system is one of the most promising distributed generation systems because it is small, efficient and mobile. When it is running, the high-frequency alternating current of permanent magnet synchronous generator generating must be rectified and inverted into 50Hz AC to meet the user requirements. Normally, the diode rectifier is used. When we need to regulate voltage, the DC/DC...
In the high power direct drive wind energy conversion systems, the power factors of both the generator-side converter and the grid-side converter are controlled to one in order to make full use of the capability of the power converters. In this paper, a novel sensorless unity power factor control method based on the reference coordinate system rotating synchronously with the voltage of the generator-side...
Application of a three-phase to single-phase matrix converter for a 1 kW household gas engine cogeneration system is proposed. The matrix converter connects a three-phase permanent magnet synchronous generator of the cogeneration system to single-phase utility. Application of the matrix converter has the following advantages: (a) the generator efficiency will be improved because power factor control...
The free piston energy converter (FPEC) is a new type of power unit for hybrid electric vehicle. In a FPEC, an internal combustion engine driven permanent magnet linear generator (PMLG) may be utilized to produce electrical energy. A three-phase active rectifier topology together with its controller is presented for controlling the generator output. The PMLG loaded with an active rectifier is modeled...
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