| 引用本文: | 刘欣,李尚盛,吴楠,等.基于谐波源注入的SAPF补偿容量确定方法[J].电力系统保护与控制,2017,45(2):22-27.[点击复制] |
| LIU Xin,LI Shangsheng,WU Nan,et al.Compensation capacity prediction of SAPF based on harmonic source injection[J].Power System Protection and Control,2017,45(2):22-27[点击复制] |
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| 摘要: |
| 补偿容量是决定并联型有源电力滤波器(Shunt Active Power Filter, SAPF)补偿性能的重要因素之一。通过戴维南等值模型，分析了SAPF补偿容量的决定因素，指出了依据补偿前负荷电流作为确定补偿容量的方法存在的缺点。提出了一种基于谐波源注入的SAPF补偿容量预估方法，通过小容量谐波源在接入点分次注入谐波电流，预估SAPF的补偿容量。该方法还提出了谐波源特征系数和补偿容量放大倍数两个指标用于表征负荷的性质，为SAPF的类型和容量的选择提供方向。通过对不同负载模型的仿真验证，确定该方法比传统方法更加接近真实SAPF的补偿容量。 |
| 关键词: 戴维南等值 谐波补偿 补偿容量 SAPF 补偿性能 |
| DOI：10.7667/PSPC160139 |
| 投稿时间：2016-01-25修订日期：2016-04-05 |
| 基金项目: |
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| Compensation capacity prediction of SAPF based on harmonic source injection |
| LIU Xin,LI Shangsheng,WU Nan,SUN Jianjun |
| (School of Electrical Engineering, Wuhan University, Wuhan 430072, China) |
| Abstract: |
| Compensation capacity plays an important role in the operation performance of shunt active power filter (SAPF). The determinants of SAPF compensation capacity are analyzed by Thevenin equivalent model of grid and load. The shortcoming of compensation capacity calculation method according to load current before compensated is pointed out. Furthermore, a compensation capacity prediction method of SAPF based on harmonic source injection which uses small capacity harmonic source is proposed. Characteristic coefficient of harmonic source and compensation capacity magnification are also given, which provides direction to type and capacity selection of SAPF. Ultimately, availability of the method is testified through simulation. Compared with the traditional method, this method is more close to the real capacity of APF. |
| Key words: Thevenin equivalent harmonic compensation compensation capacity shunt active power filter compensating characters |
