电力系统及其自动化学报2011，Vol.23Issue(5)：39-42,4.
改进滞环电流控制在光伏并网系统中的应用
Improved Hysteresis Current Control for Grid-Connected PV Power Systems
摘要
Abstract
An improved hysteresis current control techqniue for grid-connected photovoltaic (PV) system is proposed in order to reduce the power loss of the switching devices, impove the system response speed and keep the grid current in phase with the grid voltage. The technique is based on space vector modulation (SVM) concept and hysteresis current control method. By improving the switch state of power electronics devices in accordance with the space vector relationship between current error signal and reference voltage signal, fast current response is gained, and system switching frequency and overall power loss are reduced. The mehtod is easy to implement due to its simplicity in both hardware and software configurations, which can reduce the o verall cost of PV system. Results show that this method offers merits of both SVM technique and hysteresis control technique, which increases the utilization of DC-link voltage and improves the response speed and robustness of the PV system.关键词
新能源发电系统/并网/滞环电流控制/空间矢量调制Key words
new energy generation system/ grid-connected/ hysteresis current control/ space vector modulation (SVM)分类
信息技术与安全科学引用本文复制引用
廖志帆,祁新梅,郑寿森,王飞..改进滞环电流控制在光伏并网系统中的应用[J].电力系统及其自动化学报,2011,23(5):39-42,4.基金项目
广东省自然科学基金资助项目(8451027501001493) （8451027501001493）
