A New Direct Power Control of Three-level PWM Rectifier Based on Equivalent Space Vector

2018 3rd International Conference on Insulating Materials, Material Application and Electrical Engineering

材料科学;无线电电子学;电工学

Lei, Jiansheng^1

Wuhan Institute of Marine Electric Propulsion, Wuhan

430064, China^1

关键词: Active and Reactive Power;    Constant switching frequency;    Direct power control;    Dual carriers;    Matlab/Simulink simulation;    Space vector pulse width modulation;    Three-level pwm rectifiers;    Three-phase voltage source PWM rectifiers;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/452/4/042111/pdf
DOI  :  10.1088/1757-899X/452/4/042111

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

This paper analyzes basic principle of DPC of three-phase voltage-source PWM rectifier, and presents its shortcomings of high and unfixed switching frequency. On this base, it proposes the method of combining DPC and three-level voltage space vector pulse width modulation(SVPWM), which reduces and fixes switching frequency. To overcome the shortcomings of complex control and complicated calculations of traditional SVPWM algorithm, the paper proposes an equivalent three-level SVPWM algorithm of dual-carrier modulation, and in the d-q coordinates, and a control strategy of power feed forward decoupling control of traditional DPC, which realizes the dynamic decoupling of active and reactive power. The MATLAB/SIMULINK simulations verify the feasibility of this control strategy.