电气工程学报 ›› 2016, Vol. 11 ›› Issue (12): 8-15.doi: 10.11985/2016.12.002

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直接功率控制下的VSR和CSR驱动负载特性对比研究

董砚,郭贤朝,荆锴   

  1. 河北工业大学控制科学与工程学院天津 300130
  • 收稿日期:2016-04-12 出版日期:2016-11-25 发布日期:2019-11-22
  • 作者简介:董砚女 1973年生,博士生导师,研究方向为电力电子与电机传动。|郭贤朝男 1990年生,硕士,研究方向为电力电子与电机传动。
  • 基金资助:
    河北省重大科技成果转化项目(13041709Z);河北省自然科学基金(E2013202108);河北省发改委资助项目

Research on the Comparative of the Characteristic of the Driving Load of Voltage Source Rectifier and Current Source Rectifier for Direct Power Control

Dong Yan,Guo Xianchao,Jing Kai   

  1. Hebei University of Technology Tianjin 300130 China
  • Received:2016-04-12 Online:2016-11-25 Published:2019-11-22

摘要:

本文以比例谐振控制电流内环的电压型整流器(VSR)和电流型整流器(CSR)为研究对象,在直流侧电压平方为外环的VSR系统基础上,提出了以直流侧电流平方为外环的CSR控制结构。给出了两种系统的闭环传递函数及数学表述形式,通过对比分析,研究了最优阻尼系数下的自然振荡频率与负载以及PI调节器参数的函数关系及变化趋势,得出以稳、动态性能最优为目标的两种系统结构对负载的适应性,并给出系统设计中拓扑结构的选择依据和方法,从而简化设计流程,缩短调试周期。在数学推导基础上,搭建了仿真模型,并代入实际系统的参数进行了模拟验证,证明了结论的正确性。

关键词: 电压型PWM整流器, 电流型PWM整流器, 直接功率控制, 负载阻值

Abstract:

In the paper, the current inner loops are used with proportional resonant(PR) control with voltage source rectifier(VSR) and current source rectifier(CSR) as the research object in this paper. Basis on outer loop control with dc voltage square of VSR, the improvement with dc current square of CSR is deduced. Two systems of the closed loop transfer function and mathematical forms are analyzed in the paper. Functional relationship and change trend are studied in the optimal damping coefficient with nature surge frequency and load as well as regulator parameters of PI. Two systems are adaptive on the load with the optimal goal of steady and dynamic. The selection basis on topology and methods are given in the design of system. This theory simplifies design flow, and shortens adjustment period. On the basis of mathematics derived, the practical system parameters is used to put up into the simulation model and verification. That conclusion is correctness.

Key words: Voltage source PWM rectifier, current source PWM rectifier, direct power control, load resistance

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