Coordinated Operation of Gas and Electricity Systems for Flexibility Study
Coordinated Operation of Gas and Electricity Systems for Flexibility Study
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DOI：
10.3389/fenrg.2020.00120
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发表时间：
2020-07
期刊：
影响因子：
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通讯作者：
H. Ameli;Meysam Qadrdan;G. Strbac
中科院分区：
文献类型：
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作者：
H. Ameli;Meysam Qadrdan;G. Strbac
由燃气发电厂和燃气电动压缩机驱动的电力和天然气系统之间的相互依存关系日益增强，因此有必要对这种相互依存关系进行详细调查，特别是在可再生能源所占份额增加的情况下。在这篇文章中，评估了燃气和电力系统综合运营方法的价值。采用等松弛外逼近(OA/ER)方法处理燃气-电力系统联合运行的混合整数非线性优化类问题。该方法显著提高了求解算法的效率，与连续线性规划相比，计算时间减少了近40%。灵活技术的价值，包括灵活的气体压缩机、需求侧响应、电池存储和电力到天然气，在GB 2030能源情景中针对不同的可再生发电普及率量化了燃气和电力系统的运行。模型表明，灵活性选项将显著节省燃气和电力系统的年运营成本(高达21%)。另一方面，所进行的分析表明，柔性技术的部署适当地支持了燃气和电力系统之间的互动。
The increased interdependencies between electricity and gas systems driven by gas-fired power plants and gas electricity-driven compressors necessitates detailed investigation of such interdependencies, especially in the context of an increased share of renewable energy sources. In this paper, the value of an integrated approach for operating gas and electricity systems is assessed. An outer approximation with equality relaxation (OA/ER) method is used to deal with the optimization class of the mixed-integer non-linear problem of the integrated operation of gas and electricity systems. This method significantly improved the efficiency of the solution algorithm and achieved a nearly 40% reduction in computation time compared to successive linear programming. The value of flexibility technologies, including flexible gas compressors, demand-side response, battery storage, and power-to-gas, is quantified in the operation of integrated gas and electricity systems in GB 2030 energy scenarios for different renewable generation penetration levels. The modeling demonstrates that the flexibility options will enable significant cost savings in the annual operational costs of gas and electricity systems (up to 21%). On the other hand, the analysis carried out indicates that deployment of flexibility technologies appropriately supports the interaction between gas and electricity systems.