Low-carbon Optimal Operation of Heterogeneous Energy Flow System Considering Hydrogen Energy Flow and Generalized Energy Storage

MA Chenglian; LI Hao; WEI Gang; LAN Bing; ZHAO Yu; SUN Li

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Low-carbon Optimal Operation of Heterogeneous Energy Flow System Considering Hydrogen Energy Flow and Generalized Energy Storage

MA Chenglian¹, LI Hao¹, WEI Gang^1,2, LAN Bing¹, ZHAO Yu¹, SUN Li¹

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Abstract

[Objective] The large-scale integration of high-proportion renewable energy will lead to the imbalance between supply and demand of heterogeneous energy flow system (HEFS). Aiming at the problem of renewable energy consumption, the low-carbon coordinated control method of heterogeneous energy flow system with hydrogen energy flow and generalized energy storage is studied. [Methods] Firstly, considering the multi-energy flow interaction of hydrogen energy flow and the flexible regulation characteristics of generalized energy storage, the comprehensive cost, wind and solar consumption rate, carbon emissions and other indicators are constructed to evaluate the comprehensive benefits of optimal operation. Secondly, based on the system carbon emission information, a carbon flow topology model based on energy flow interaction is constructed, and the carbon flow information is used to assist in evaluating the multi-objective optimization results. Finally, a practical regional system in Northeast China is simulated to study the collaborative interaction characteristics of source-load-storage, analyze the optimization effect of hydrogen energy flow and generalized energy storage on the comprehensive benefits of the system. [Results] The simulation results show that the participation of hydrogen energy flow and generalized energy storage can effectively improve the consumption margin of heterogeneous energy flow system for renewable energy, which proves the effectiveness and feasibility of the proposed method. [Conclusions] Through the flexible interaction of electricity-heat-hydrogen energy flow, the full utilization of energy is realized, the dynamic adjustment ability of the system is enhanced, and the penetration of low-carbon energy is effectively promoted. After considering the generalized energy storage, it further promotes the consumption of low-carbon energy, realizes peak shaving and valley filling, and promotes the transformation of heterogeneous energy flow system to efficient, clean and low-carbon. Through the analysis of carbon flow in typical periods, it is shown that the participation of hydrogen energy flow and generalized energy storage can effectively alleviate the pressure of system supply and demand, which is conducive to the realization of low-carbon operation of heterogeneous energy flow system. The strategy of this paper provides new ideas and methods for heterogeneous energy flow systems to absorb renewable energy, and has good engineering prospects.

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hydrogen energy flow / generalized energy storage / heterogeneous energy flow system / carbon flow / low-carbon operation

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MA Chenglian, LI Hao, WEI Gang, LAN Bing, ZHAO Yu, SUN Li. Low-carbon Optimal Operation of Heterogeneous Energy Flow System Considering Hydrogen Energy Flow and Generalized Energy Storage[J]. Electric Power Construction. 0

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