Coordinated Voltage Regulation Methods in Active Distribution Networks with Soft Open Points

Ruonan Hu, Wei Wang, Zhe Chen, Xuezhi Wu, Long Jing, Wei Ma and Guohong Zeng
Additional contact information
Ruonan Hu: National Active Distribution Network Technology Research Center, Beijing Jiaotong University, Beijing 100044, China
Wei Wang: National Active Distribution Network Technology Research Center, Beijing Jiaotong University, Beijing 100044, China
Zhe Chen: Department of Energy Technology, Aalborg University, 9220 Aalborg, Denmark
Xuezhi Wu: National Active Distribution Network Technology Research Center, Beijing Jiaotong University, Beijing 100044, China
Long Jing: National Active Distribution Network Technology Research Center, Beijing Jiaotong University, Beijing 100044, China
Wei Ma: National Active Distribution Network Technology Research Center, Beijing Jiaotong University, Beijing 100044, China
Guohong Zeng: National Active Distribution Network Technology Research Center, Beijing Jiaotong University, Beijing 100044, China

Sustainability, 2020, vol. 12, issue 22, 1-18

Abstract: This paper proposes a coordinated voltage regulation method for active distribution networks (ADNs) to mitigate nodal voltage fluctuations caused by photovoltaic (PV) power fluctuations, where a three-stage optimization scheme is developed to coordinate and optimize the tap position of on-load tap changers (OLTCs), the reactive power of capacitor banks (CBs), and the active and reactive power of soft open points (SOPs). The first stage aims to schedule the OLTC and CBs hourly using the rolling optimization algorithm. In the second stage, a multi-objective optimization model of SOPs is established to periodically (15 min) optimize the active and reactive power of each SOP. Meanwhile, this model is also responsible for optimizing the Q-V droop control parameters of each SOP used in the third stage. The aim of the third stage is to suppress real-time (1 min) voltage fluctuations caused by rapid changes in PV power, where the Q-V droop control is developed to regulate the actual reactive power of SOPs automatically, according to the measured voltage at the SOPs’ connection points. Furthermore, numerous simulations and comparisons are carried out on a modified IEEE 33-bus distribution network to verify the effectiveness and correctness of the proposed voltage regulation method.

Keywords: active distribution network (ADN); voltage regulation; photovoltaic (PV); soft open point (SOP); droop control (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:12:y:2020:i:22:p:9453-:d:444562

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