MULTI-TIME-SCALE DYNAMIC DISPATCH OPTIMIZATION STRATEGY FOR CSP-PV HYBRID POWER PLANTS CONSIDERING PEAK REGULATION

Hu Bangjie; Wang Liang; Yang Shitao; Cheng Shi; Wang Pei

doi:10.19912/j.0254-0096.tynxb.2024-1772

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (2) : 165-172. DOI: 10.19912/j.0254-0096.tynxb.2024-1772

MULTI-TIME-SCALE DYNAMIC DISPATCH OPTIMIZATION STRATEGY FOR CSP-PV HYBRID POWER PLANTS CONSIDERING PEAK REGULATION

Hu Bangjie¹, Wang Liang², Yang Shitao³, Cheng Shi⁴, Wang Pei¹

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Abstract

Concentrating solar power （CSP） generation, which encompasses both energy storage and power generation capabilities, has emerged as a grid-friendly renewable energy technology and has become a standard configuration within wind and solar power bases. To further enhance the profitability and consumption of CSP-PV operators, this paper primarily focuses on the impact of the startup and dynamic switching conditions of subsystems such as receiver, heat storage, power generation, and electric heater using molten salt on the performance of CSP-PV hybrid power plants. Aiming to optimize the income generated by the hybrid plant, a multi-time-scale dynamic optimization output model is established. This model also incorporates the power system’s optimal scheduling for day-ahead and intra-day, and the optimized output is then used as the declared power output curve. An optimal scheduling model, aimed at reducing the comprehensive operating costs of the power system, has been established. Finally, the measured data of a power system in a certain region of Northwest China is taken as an example for analysis. The case analysis shows that compared to traditional scheduling strategies and profit-maximization strategies, this peak regulation-oriented strategy increases the total power plant revenue by 13.48% and 6.67% respectively, while reducing the curtailment rates of wind and solar power in the power system by 1.39% and 0.5% respectively.

Key words

solar thermal power generation / scheduling / energy consumption / CSP-PV hybrid system / peak regulation / multi-time-scale

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Hu Bangjie, Wang Liang, Yang Shitao, Cheng Shi, Wang Pei. MULTI-TIME-SCALE DYNAMIC DISPATCH OPTIMIZATION STRATEGY FOR CSP-PV HYBRID POWER PLANTS CONSIDERING PEAK REGULATION[J]. Acta Energiae Solaris Sinica. 2026, 47(2): 165-172 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1772

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