| 引用本文: | 郭三明,孙鹏荆,敬树仁,等.基于预测模型的STATCOM功率控制策略建模与仿真[J].电力系统保护与控制,2015,43(1):88-92. |
| GUO Sanming,SUN Pengjing,JING Shuren,et al.Research on modeling and simulation of power control method for STATCOM based on predictive model[J].Power System Protection and Control,2015,43(1):88-92 |
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| 摘要: |
| 将基于预测模型的功率控制策略(Predictive power control，PPC)应用于静止同步补偿器(Static synchronous compensator，STATCOM)中，来解决传统直接功率控制策略中存在的功率脉动过大、开关频率不固定等问题。在分析STATCOM基本结构的基础上，结合实际数字处理系统离散运行的特点，推导出STATCOM系统的功率预测方程，构建一个使k+1采样点功率跟踪误差最小为目标的占空比求取函数，然后利用SVPWM技术调制出波形控制(Voltage source in |
| 关键词: 瞬时功率理论 预测模型 SVPWM 功率控制 |
| DOI：10.7667/j.issn.1674-3415.2015.01.015 |
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| 基金项目: |
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| Research on modeling and simulation of power control method for STATCOM based on predictive model |
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GUO Sanming1, SUN Pengjing1, JING Shuren2, WANG Zhifang1
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1.School of Electrical Engineering and Automation, Henan Polytechnic University, Jiaozuo 454000, China;2.Xiping Electric Power Bureau, Zhumadian 463900, China
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| Abstract: |
| A predictive power control method based on predictive models (PPC) is used in static synchronous compensator (STATCOM) to solve the larger power ripple and inconstant switching frequency in traditional direct power control (DPC). First of all, this paper analyzes the basic structure of STATCOM. Considering the actual discreteness of digital processing system, the power predictive function of STATCOM is derived, and a duty ratio calculating function is constructed to minimize the power tracking error at k+1 sampling time, in order to achieve stable operation of the system, SVPWM technology modulate waveform is used to control VSI. Finally, the simulation model of STATCOM is carried out based on Matlab, the results of simulation show that the proposed PPC method can suppress the power ripple effectively and get a constant switching frequency, as well as keep a high dynamic response performance of traditional DPC. |
| Key words: instantaneous power theory predictive model SVPWM power control |
