基于超导储能装置的配电网谐波与电压凹陷补偿技术  

Compensation in Power Distribution Grid Harmonics and Voltage Sags Based on SMES

作　　者：谢奕尘[1] 高二超[1] 李瑞金[1] 

机构地区：[1]安徽理工大学电气与信息工程学院,安徽省淮南市232001

出　　处：《电力建设》2013年第3期7-11,共5页Electric Power Construction

基　　金：国家自然科学基金项目(50574005)

摘　　要：针对非线性冲击负载引起的电压凹陷大、电网谐波比重大和功率因数低等电能质量问题,提出了一种基于超导储能技术的三相电压源型变流器(voltage source converter,VSC)反馈伪线性化控制方法。在三相VSC数学模型中使用逆系统,达到直流电容、电压和无功电流的完全解耦,并构造出伪线性系统。设计了斩波器的电流调节控制系统,充分发挥了超导储能的续流能力。设计了内电流环控制器,解决了诸多电能质量问题,并对VSC容量进行最优整定。Aimed at some power quality problems caused by nonlinear load shock, such as voltage sag, major harmonic wave, low power factor, a pseudo linearization feedback control method for three-phase voltage source converter （VSC） based on superconducting magnetic energy storage （SMES） technology is proposed in this paper. Due to the use of inverse system in three-phase converter VSC mathematical model, the complete decoupling between DC capacity voltage and reactive current is achieved, and the pseudo linearization system is constructed. The regulation and control system of chopper current is designed which could give full play to the endurance ability of SMES. The inner current loop controller is also design to solve the power quality problems and carry out the optimal setting of VSC capacity.

关 键 词：超导储能(SMES) 电压源型变流器 逆系统 解耦 前馈补偿 电流环控制器 

分 类 号：TM46[电气工程—电器]