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The Full Load Voltage Compensation Strategy in Capacity Configuration of UPQC Integrated PV-BESS

Fuyin Ni1,2, Kai Li2,*

1 Jiangsu Key Laboratory of Power Transmission & Distribution Equipment Technology, Jiangsu University of Technology, Changzhou, 213001, China
2 School of Electrical and Information Engineering, Jiangsu University of Technology, Changzhou, 213001, China

* Corresponding Author: Kai Li. Email: email

Energy Engineering 2023, 120(5), 1203-1221. https://doi.org/10.32604/ee.2023.025796

Abstract

Unified power quality conditioner (UPQC) with energy storage is commonly based on conventional capacity configuration strategy with power angle control. It has problems such as phase jumping before and after compensation. DC-link cannot continuously emit active power externally. Therefore, this paper presents the compensation strategy of full load voltage magnitude and phase in capacity configuration of UPQC. The topology of UPQC is integrated a series active power filter (SAPF), a shunt active power filter (PAPF) and a photovoltaic-battery energy storage system (PV-BESS). The principle of full load voltage compensation is analyzed based on the PV-BESS-UPQC topology. The magnitude constant of load voltage is maintained by controlling the appropriate shunt compensation current. Then the UPQC capacity configuration is carried out using the full load voltage compensation strategy. The compensation capacity of UPQC series and shunt units are reduced. Finally, the simulation results show that the proposed compensation strategy reduces the capacity configuration by 5.11 kVA (36.4%) compared to the conventional compensation strategy. The proposed strategy can achieve full compensation of the load voltage, which can effectively reduce the capacity allocation and improve the economy of UPQC. It also has the PV-BESS units' ability of providing active power and can stabilize the DC-link voltage.

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The Full Load Voltage Compensation Strategy in Capacity Configuration of UPQC Integrated PV-BESS

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APA Style
Ni, F., Li, K. (2023). The full load voltage compensation strategy in capacity configuration of upqc integrated PV-BESS. Energy Engineering, 120(5), 1203-1221. https://doi.org/10.32604/ee.2023.025796
Vancouver Style
Ni F, Li K. The full load voltage compensation strategy in capacity configuration of upqc integrated PV-BESS. Energ Eng. 2023;120(5):1203-1221 https://doi.org/10.32604/ee.2023.025796
IEEE Style
F. Ni and K. Li, "The Full Load Voltage Compensation Strategy in Capacity Configuration of UPQC Integrated PV-BESS," Energ. Eng., vol. 120, no. 5, pp. 1203-1221. 2023. https://doi.org/10.32604/ee.2023.025796



cc This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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