基于超级电容储能系统的动态电压恢复器研究  

Dynamic voltage restorer based on super capacitor energy storage system

作　　者：易桂平[1] 胡仁杰[1] 

机构地区：[1]东南大学电气工程学院,江苏南京210096

出　　处：《电力自动化设备》2013年第12期21-26,共6页Electric Power Automation Equipment

摘　　要：在建立基于等效电路的超级电容器储能(SCES)系统的数学模型基础上,设计了一种超级电容器储能的动态电压恢复器(DVR)。该DVR以超级电容器为直流侧储能单元,采用非隔离型Buck-Boost双向DC/DC变换器进行双闭环功率前馈控制,采用双向电压源型DC/AC变换器进行解耦和前馈补偿控制。根据SCES的特性,确定了系统的基本运行原理,即当电源电压暂降时,通过调节DVR输出的有功功率和无功功率来维持负载电压幅值和相位的稳定。仿真实验结果验证了该DVR拓扑结构及其控制策略的正确性和有效性。The mathematical models of SCES（Super Capacitor Energy Storage） system are built based on the equivalent circuits and a kind of DVR（Dynamic Voltage Restorer） based on SCES is designed,which uses the super capacitor as the storage component at its DC side,applies the non-isolated Buck-Boost bi-directional DC/DC converter in its double closed-loop power feed-forward control and adopts the hi-directional voltage- source DC/AC converter in its decoupling and feed-forward compensation control. Its operating principle is established according to the characteristics of SCES,which regulates the active and reactive powers of DC/ AC converter to stabilize the load voltage when the source voltage drops. The correctness and effectiveness of the designed DVR are verified by simulation and experiment.

关 键 词：动态电压恢复器 控制 超级电容器 储能 

分 类 号：TM761[电气工程—电力系统及自动化]