Open Access

ARTICLE

Research on Energy Mutual Assistance Control Strategy between Low-Voltage Stations Using Micro-Pumped Storage System with Common Reservoir Mode

Yunzhao Wu¹, Guanglin Sha¹, Qing Duan¹, Xinwei Cong¹, Lu Liu¹, Ning Zhou², Yingjie Zhou^3,*

1 Power Distribution Department, China Electric Power Research Institute, Beijing, 100192, China
2 Electric Power Research Institute, State Grid Henan Electric Power Co., Ltd., Zhengzhou, 450052, China
3 School of Electrical and Control Engineering, North China University of Technology, Shijingshan District, Beijing, 100144, China

* Corresponding Author: Yingjie Zhou. Email:

(This article belongs to the Special Issue: Innovative Approaches in Clean Energy Systems: Integration, Sustainability, and Policy Impact of Renewable Energy)

Energy Engineering 2025, 122(3), 1093-1112. https://doi.org/10.32604/ee.2025.060349

Received 30 October 2024; Accepted 20 January 2025; Issue published 07 March 2025

Abstract

To enhance energy interaction among low-voltage stations (LVSs) and reduce the line loss of the distribution network, a novel operation mode of the micro-pumped storage system (mPSS) has been proposed based on the common reservoir. First, some operation modes of mPSS are analyzed, which include the separated reservoir mode (SRM) and common reservoir mode (CRM). Then, based on the SRM, and CRM, an energy mutual assistance control model between LVSs has been built to optimize energy loss. Finally, in the simulation, compared to the model without pumped storage in the LVS, the SRM and CLRM can decrease the total energy loss by 294.377 and 432.578 kWh, respectively. The configuration of mPSS can improve the utilization rate of the new energy source generation system, and relieve the pressure of transformer capacity in the LVS. Compared with the SRM, the proposed CRM has reduced the total energy loss by 138.201 kWh, increased the new energy consumption by 161.642 kWh, and decreased the line loss by 7.271 kWh. With the efficiency of the mPSS improving, the total energy loss reduction of CRM will be 3.5 times that of SRM. Further, the CRM can significantly reduce the reservoir capacity construction of mPSS and is more suitable for scenarios where the capacity configuration of mPSS is limited.

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