Research And Application Development. Dual Pwm Converter Design

With the development of power electronics, dual PWM inverter with performances has become the research focus for domestic and overseas universities, institutes and corporations.On the base of the dual PWM inverter, firstly, the thesis analyzes the development of power electronic equipment. With the advancement of society, people has realized that low power factor and high harmonic pollution are two major problems in power net. So, improved the power factor has been the develop tendency of the power electronics. Because of the mention above, secondly the thesis analyzes the principle of voltage source rectifier. What's more, it compares the kinds of PWM, deduces in detail the mathematic formulation of voltage source rectifier, contrasts defeats and merits all kinds of control methods and analyzes the algorithmof two-phase modulation SVPWM. At the same time, it selects main control chip, writes control software programme, makes out main circuit topology of AC-DC-AC system. Aimed at the requirement of the control system, several important parameters are analyzed, calculated and deduced.Using Matlab simulation software, the thesis simulate and analyze dynamic performance of scheme, to testify correction and applicability and to provide guidance of making sample.At last, make model and go on with series of experiments, Analyze all kindsof data and waveform. Draw the conclusion and make prospect. All mention above make foundation to further researches.