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Three-Phase PWM Rectifier Based On Integrated Learning Boost Converter Control

Posted on:2005-04-09Degree:MasterType:Thesis
Country:ChinaCandidate:J XiaoFull Text:PDF
GTID:2132360125456077Subject:Power electronics and electric drive
Abstract/Summary:PDF Full Text Request
The three-phase voltage source PWM rectifier is becoming interested in power electronics field because it has many excellent characteristics such as undistorted sinusoidal current waveform, unity power factor,According to the topology, PWM rectifier is divided into voltage source rectifier (VSR) and current source rectifier (CSR). The topology and principle of voltage source rectifier are analyzed in detail and the space voltage vector method is explored to investigate the inversion of the three-phase voltage source PWM rectifier in this paper.A new control method Integrated Learning Boost Converter Control is presented in the paper to implement the two functions of PWM rectifier: commutating and filter. The Boost converter is analyzed through the theory of Sliding Model Variable Structure in this paper. The control signals of the PWM rectifier are obtained by comparing the current of AC side with triangular wave (or saw-tooth wave) directly, which can implement the steadiness of the voltage of DC side and unit capacity factor of the system. At the same time, harmonic component of the system is abstracted through Instant Reactive Power Method, which can be smoothed by Integrated Learning Boost Converter Control. After calculating the system parameter, such as the inductance of AC side and the capacitance of DC side, we accomplished the simulation of the three-phase voltage source PWM rectifier, and the result proves correctness and reliability of the control method.Three-phase voltage source PWM rectifier based on Integrated Learning Boost Converter Control is applied in high-voltage frequency-converter system, and the result of simulation and experiment is ideal?...
Keywords/Search Tags:PWM rectifier, Unit Power Factor, Sliding Model Variable Structure, Boost Converter Control, Integrated Learning
PDF Full Text Request
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