基于阻尼补偿的直流发电机带恒功率负载系统稳定性分析

doi:CNKI:11-1929/V.20110412.1533.007

电子与自动控制

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基于阻尼补偿的直流发电机带恒功率负载系统稳定性分析

谢占明¹, 郭宏¹, 黄建²

1. 北京航空航天大学自动化科学与电气工程学院, 北京 100191;
2. 北京航空航天大学无人驾驶飞行器设计研究所, 北京 100191

收稿日期:2011-01-20 修回日期:2011-02-18 出版日期:2011-11-25 发布日期:2011-11-24
通讯作者: 郭宏 E-mail:guohong@buaa.edu.cn
作者简介:谢占明(1973- ) 男,博士研究生。主要研究方向:直流电源系统设计,仿真与试验研究。 Tel: 010-82317394 E-mail: xzm_ok@163.com 郭宏(1967- ) 男,博士,教授,博士生导师。主要研究方向:特种电机设计及其驱动控制。 Tel: 010-82317546 E-mail: guohong@buaa.edu.cn 黄建(1953- ) 男,研究员,主要研究方向:特种电机及其控制,飞机电源系统设计。

Stability Analysis on the System of a DC Generator Driving Constant Power Loads Based on Damping Compensation

XIE Zhanming¹, GUO Hong¹, HUANG Jian²

1. School of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, China;
2. Research Institute of Unmanned Aerial Vehicles, Beihang University, Beijing 100191, China

Received:2011-01-20 Revised:2011-02-18 Online:2011-11-25 Published:2011-11-24

摘要/Abstract

摘要： 提出了一种提高基于阻尼补偿的直流(DC)发电机带恒功率负载(CPL)系统稳定性的方法。依据输入滤波器输出阻抗极大值最小原则对基于阻尼补偿的直流发电机带恒功率负载系统输入滤波器参数进行了最优设计,给出了设计方法和流程。运用Bode图和Nyquist曲线对基于阻尼补偿的直流发电机带恒功率负载系统进行稳定性分析,并与在输出端并联单电容的直流发电机带恒功率负载系统进行比较。对两种系统进行了仿真分析和试验验证。结果表明,基于阻尼补偿的直流发电机带恒功率负载系统较之在输出端并联单电容的直流发电机带恒功率负载系统带载能力可提高一倍以上。

关键词: 稳定性, 直流发电机, 恒功率负载, 阻尼补偿, 最优设计, Nyquist曲线

Abstract: A method is proposed to enhance the stability of a system with a direct current (DC) generator driving constant power load (CPL) based on damping compensation. Optimal design for input filter parameters in the system is accomplished to obtain the minimization of peak output impedance, and the design process is discussed in detail. By means of the Bode plot and Nyquist contour, stability analysis is carried out on two systems with DC generators driving CPL, one based on damping compensation and the other on only one capacitor. Simulations and experiments for both systems are used to validate the theoretical analysis. The results indicate that the capacity of a DC generator driving CPL is enhanced by more than 100% for the system based on damping compensation as compared with the system with only one capacitor.

Key words: stability, DC generator, constant power load, damping compensation, optimal design, Nyquist contour

中图分类号:

V242.2

谢占明, 郭宏, 黄建. 基于阻尼补偿的直流发电机带恒功率负载系统稳定性分析[J]. 航空学报, 2011, 32(11): 2055-2061.

XIE Zhanming, GUO Hong, HUANG Jian. Stability Analysis on the System of a DC Generator Driving Constant Power Loads Based on Damping Compensation[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2011, 32(11): 2055-2061.

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E-mail：hkxb@buaa.edu.cn

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基于阻尼补偿的直流发电机带恒功率负载系统稳定性分析

Stability Analysis on the System of a DC Generator Driving Constant Power Loads Based on Damping Compensation

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