摘要
为实现超导储能装置(SMES-Superconducting Magnetic Energy Storage)与输配电网之间的协调作用,达到提高电网输送容量、暂态稳定性和电压稳定性,提高配电网电能质量的目的。根据SMES的结构特点,结合目前大功率电力电子器件以及电路拓扑的发展趋势,设计了一台三单相H桥分立控制的电压型换流器(VSI-Voltage source inverter)及其控制系统平台。该电压型换流器采用三相器件独立运行结构,控制系统采用数字信号处理器(DSP-Digital Signal Processing)设计,在功能上实现了对串联于电力线路的注入电压幅值和相位的灵活控制,最后给出了一台20 kW电压型换流器原理样机对母线电压补偿功能的试验结果,试验结果表明,该电压型换流器可以满足超导储能系统的需要。
A set of three of single-phase H-bridge separated controlled voltage source inverter and a flexible control system for the inverter are designed for the purpose of coordinating SMES with T＆D power system in order to improve transmission capacity and transient and voltage stability, and to enhance the power quality in distribution network, which integrate the characteristics of superconducting magnet and developments of power electronics. This voltage source inverter adopted a structure with three phases working independently, while the control system was designed using digital signal processor （DSP）. Such design implements the function of flexible change of amplitude and phase of injected voltage series to the network. Finally the voltage compensated experiment result of a 20kW prototype is given and the result is satisfactory.
出处
《继电器》
CSCD
北大核心
2008年第3期51-55,共5页
Relay
基金
国家自然科学基金资助项目(50225723)~~
