基于Saber平臺的光伏并網微逆變器建模及仿真分析
高延麗1，焦曉雷1，黃紅橋2，徐柯1
1 國電南瑞科技股份有限公司，江蘇 南京 210061；
2 湖南省電力公司永州分公司，湖南 永州 425000
摘 要：設計了一種單級式微逆變器控制系統，針對傳統PI控制不能實現無靜差控制的缺點，提出了一種可實現并網電流無靜差的準PR并網控制策略，基于Saber平臺建立了光伏并網微逆變器仿真系統。仿真結果表明，采用準PR控制的微逆變器具有很好的輸出電壓和電流特性，總諧波畸變率均低于公共電網諧波國家標準。
關鍵詞：微逆變器；光伏并網；準PR控制；Saber平臺
中圖分類號：TM464；TM615 文獻標識碼：A 文章編號：1007-3175(2013)06-0019-04
Modeling and Simulation Analysis of Photovoltaic Grid-Connected Micro-Inverter Based on Saber Platform
GAO Yan-li1, JIAO Xiao-lei1, HUANG Hong-qiao2, XU Ke1
1 NARI Technology Development Co., Ltd, Nanjing 210061, China;
2 Yongzhou Branch of Hunan Electric Power Company, Yongzhou 425000, China
Abstract: A kind of single step micro-inverter control system was designed. Aiming at disadvantages of traditional PI control which is unable to realize non-static-error control, this paper raised a quasi proportion resonance (PR) grid-connected strategy carrying out grid-connection currents non-static-error control and built a photovoltaic grid-connected micro-inverter simulation system based on Saber platform. Simulation result shows that the micro-inverter in adoption of quasi proportion resonance grid-connected control strategy has very good output voltage and current characteristics and the whole harmonic distortion ratio is less than the national standard of public grid harmonics.
Key words: micro-inverter; photovoltaic grid-connected; quasi proportion resonance control; Saber platform
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