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Research on DSP-based Three-Phase Wind Power Grid-connected Inverter

Author: LiDong
Tutor: CheYanBo
School: Tianjin University
Course: Power Electronics and Power Drives
Keywords: Direct-drive wind power Three-phase grid-connected inverter Current tracking control MPPT DSP
CLC: TM614
Type: Master's thesis
Year: 2010
Downloads: 311
Quote: 0
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Abstract


Wind power as a clean renewable resource has become one of the most important development in world. In this paper, based on distributed generation and micro-grid laboratory, it introduced the three-phase wind power grid-connected systems with direct drive generator, and studies on the control method of the inverter.This paper firstly generally describes the wind energy conversion systems, and introduces wind power development trends both in China and abroad. Now the wind power generation technology has two focuses those are high power direct-drive and doubly-fed. The issue of wind generation system uses a direct-drive generator and AC-DC-AC converter system.Then this paper introduces max power point tracker (MPPT) control method at different wind speed. In the converter system, the grid-connected inverter that transmits energy is an important part. The focus of paper is on analyzing the main circuit of the three-phase inverter, principles and methods.Based on MATLAB/Simulink platform, this paper gives a simulation about permanent magnet synchronous generator for wind power system to confirm the control strategies. Based on the theoretical study, calculate the main parameter, including the capacitor on DC side, inductance on net side.This paper uses timer compare with hysteritic current control method in inverter control. Theoretical calculation gives the voltage and current loop parameters. Control strategy uses high-speed integrated control chip DSP, and according to the requirements, designs software to gather signal in control board, operation, fault detection, circuit driver and so on.

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CLC: > Industrial Technology > Electrotechnical > Power generation, power plants > Variety of power generation > Wind power
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