SIMULATION ANALYSIS OF RUNBACK CONDITIONS ON ENERGY RELEASE PROCESS OF AA-CAES SYSTEM

Yang Dahui; Wen Xiankui; Zhong Jingliang; Feng Tingyong; Deng Tongtian; Cai Yongxiang

doi:10.19912/j.0254-0096.tynxb.2021-1529

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Acta Energiae Solaris Sinica ›› 2023, Vol. 44 ›› Issue (4) : 283-289. DOI: 10.19912/j.0254-0096.tynxb.2021-1529

SIMULATION ANALYSIS OF RUNBACK CONDITIONS ON ENERGY RELEASE PROCESS OF AA-CAES SYSTEM

Yang Dahui^1,2, Wen Xiankui³, Zhong Jingliang³, Feng Tingyong^1,2, Deng Tongtian³, Cai Yongxiang³

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Abstract

In energy release stage, advanced adiabatic compressed air energy storage （AA-CAES） system will be forced to shut down suddenly when heat storage energy or gas storage energy is insufficient, and load shedding will impact the stability of power systems. In view of the above problem, this paper proposes a control strategy of runback （RB） in the energy release stage of AA-CAES systems, and establishes relevant control simulation circuit adapting to a 10 MW AA-CAES system. Moreover, the influence of load shedding rate and the limit values of hot tank liquid level on the power generation process of AA-CAES systems is discussed in this paper. The simulation results show that the control strategy of runback can prolong the effective power generation time of AA-CAES system, and a long safety emergency duration for power systems is provided which effectively alleviates the impact of sudden load reduction on power grid and has broad application prospect.

Key words

compressed air energy storage / energy release / runback / control strategy

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Yang Dahui, Wen Xiankui, Zhong Jingliang, Feng Tingyong, Deng Tongtian, Cai Yongxiang. SIMULATION ANALYSIS OF RUNBACK CONDITIONS ON ENERGY RELEASE PROCESS OF AA-CAES SYSTEM[J]. Acta Energiae Solaris Sinica. 2023, 44(4): 283-289 https://doi.org/10.19912/j.0254-0096.tynxb.2021-1529

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