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Research on capacity design for Hybrid Pumped Storage-Wind-PV power system
based on comprehensive evaluation

1，2 1，2 1，2 3 3

MA Chao ，LIU Lu ，LIAN Jijian ，DING Lei ，LI Jing

（1. State Key Laboratory of Hydraulic Engineering Intelligent Construction and Operation，Tianjin 300072，China；

2. School of Civil Engineering，Tianjin University，Tianjin 300072，China；

3. Qinghai Provincial Investment Group Corporation Limited，Xining 810000，China）

Abstract：The integration of renewable energy development can be significantly enhanced by constructing pumped
hydro storage plants （PHS）alongside conventional hydropower plants. This not only promotes the utilization of renew⁃

able energy but also ensures the stable operation of hybrid energy systems. In response to the development needs of
PHS，this paper proposed a capacity optimization method tailored for hybrid PHS-wind-PV power system based on a

comprehensive life cycle assessment. To characterize the uncertainties of renewable energy output and runoff，this

paper introduced a scenario generation method for renewable energy output. Furthermore，a short-term coordinated

operation optimization model was established specifically for the hybrid PHS-wind-PV power system，which operates

under the mode of multi-segment transmission lines. In addition，a set of assessment indicators was developed that

across different time scales for the hybrid system，and the capacity configuration decisions are based on a comprehen⁃

sive life-cycle assessment. A case study of the Erduo Hydropower Station in the upper Yellow River shows that inte⁃
grating hybrid pumped storage with equivalent hydropower capacity results in an optimal configuration of 3000 MW

wind and 1500 MW PV power，necessitating a 3700 MW UHV transmission capacity，yielding in a net present value
of 15.86 billion yuan.

Keywords：multi-energy system；pumped hydro storage；optimal capacity design；coordinate operation；comprehen⁃

sive evaluation
（责任编辑：耿庆斋）

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