A Study on the Generating Set Capacity of Pumped Storage Units in a Cascade Water-Light Storage Complementary Co-generation System

2022 IEEE 6th Conference on Energy Internet and Energy System Integration (EI2) Pub Date : 2022-11-11 DOI:10.1109/EI256261.2022.10117183

Jun Jiang, Sheng Wang, Bingquan Yang, Shu-le Yang, Xuepeng Wang, Bangjie Meng

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Abstract

The Chunchangba shifting-speed pumped storage demonstration power plant is the first demonstration project in China that realizes cascade water-light storage complementary co-generation through a new pumped storage power plant. To effectively solve the problem of collaborative scheduling, and control problems of the small hydropower, photovoltaic power station and pumped storage units in the terraces, this paper collects and analyzes the energy storage needs of the local power grid water and light system, and initially proposes the two energy storage schemes of 5MW and 4MW. On this basis, we further compare and study four aspects: runoff regulation calculation, power balance, suppression of PV fluctuations, and construction economic indexes, select and determine the optimal solution to realize the safe, economic, and friendly operation of combined water-light storage in the demonstration area, and provide a new technical idea and application example for small and medium-sized pumped storage construction and stepwise hydropower integration transformation.

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梯级水-光互补热电联产系统抽水蓄能机组容量研究

春昌坝变速抽水蓄能示范电站是国内首个通过新建抽水蓄能电站实现梯级水光互补热电联产的示范工程。为有效解决梯田内小水电、光伏电站、抽水蓄能机组的协同调度和控制问题，本文收集并分析了当地电网水光系统的储能需求，初步提出了5MW和4MW两种储能方案。在此基础上，进一步从径流调节计算、功率平衡、抑制光伏波动、建设经济指标四个方面进行对比研究，选择并确定最优方案，实现示范区水光联合蓄能安全、经济、友好运行，为中小抽水蓄能建设和水电分步并网改造提供新的技术思路和应用实例。

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来源期刊

2022 IEEE 6th Conference on Energy Internet and Energy System Integration (EI2)

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