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Experimental Validation of Z-Source Network-Based Solar PV Backed Unified Active Power Filter for Power Quality Enrichment
Journal of Circuits, Systems and Computers ( IF 1.5 ) Pub Date : 2020-05-21 , DOI: 10.1142/s0218126621500110
B. Dineshkumar 1 , C. Karthikeyan 2 , P. Suganya 2
Affiliation  

This research paper introduces Unified Active Power Filter (UAPF) based on the [Formula: see text]-Source Inverter (ZSI) assisted by a Solar Photovoltaic (SPV) to improve the quality of power. This inverter offers significant benefits as it offers better buck/boost functionality, can control the phase angle output, has fewer harmonics, does not require filters and has high performance over the traditional inverter. For the Maximum Power Point Tracking (MPPT) feature, a low step-up Direct Current (DC)–DC converter module is used as a DC–DC switched power apparatus. The compensation feature of the UAPF depends on the method of control used to generate reference signals. In this proposed method, the Improved Second-Order General Integrator (ISOGI) is used to obtain the ZSI-UAPF reference current. The ISOGI-based control system only utilizes converter and load current measurement, since the feedback signals do not need voltage information and associated sensors. The proposed controller works efficiently with the SPV and battery system and enables distributed power to be coupled with loads under various operating conditions. The ZSI-based SPV-UAPF provides mitigation for long-range current and voltage interference and meets the grid’s active power requirements. The experimental findings based on a digital real-time platform justify the efficiency of PV with ZSI topology under balanced and unbalanced voltage and load conditions.

中文翻译:

基于 Z 源网络的太阳能光伏支持统一有源电力滤波器的电能质量富集实验验证

本研究论文介绍了基于 [公式:见正文]-源逆变器 (ZSI) 辅助太阳能光伏 (SPV) 提高电能质量的统一有源电力滤波器 (UAPF)。该逆变器具有显着优势,因为它提供了更好的降压/升压功能,可以控制相角输出,谐波更少,不需要滤波器,并且比传统逆变器具有更高的性能。对于最大功率点跟踪 (MPPT) 功能,使用低升压直流 (DC)-DC 转换器模块作为 DC-DC 开关电源设备。UAPF 的补偿特性取决于用于生成参考信号的控制方法。在这个提出的方法中,改进的二阶通用积分器 (ISOGI) 用于获得 ZSI-UAPF 参考电流。基于 ISOGI 的控制系统仅使用转换器和负载电流测量,因为反馈信号不需要电压信息和相关传感器。所提出的控制器有效地与 SPV 和电池系统一起工作,并使分布式电源能够在各种操作条件下与负载耦合。基于 ZSI 的 SPV-UAPF 可缓解远程电流和电压干扰,并满足电网的有功功率要求。基于数字实时平台的实验结果证明了具有 ZSI 拓扑结构的 PV 在平衡和不平衡电压和负载条件下的效率。所提出的控制器有效地与 SPV 和电池系统一起工作,并使分布式电源能够在各种操作条件下与负载耦合。基于 ZSI 的 SPV-UAPF 可缓解远程电流和电压干扰,并满足电网的有功功率要求。基于数字实时平台的实验结果证明了具有 ZSI 拓扑结构的 PV 在平衡和不平衡电压和负载条件下的效率。所提出的控制器有效地与 SPV 和电池系统一起工作,并使分布式电源能够在各种操作条件下与负载耦合。基于 ZSI 的 SPV-UAPF 可缓解远程电流和电压干扰,并满足电网的有功功率要求。基于数字实时平台的实验结果证明了具有 ZSI 拓扑结构的 PV 在平衡和不平衡电压和负载条件下的效率。
更新日期:2020-05-21
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