Abstract The accommodation of high-penetration renewable power poses a considerable challenge to power grids. Coal-fired combined heat and power (CHP) stations are forced to enhance their operational flexibility by applying heat-power decoupling technologies. Power-to-heat devices, including electric boilers and heat pumps, are capable to enhance the operational flexibility of coal-fired CHP stations. The problem regarding the operation scheduling of a CHP station with multiple CHP units and power-to-heat devices is addressed in this study. Operation optimization models integrated with detail CHP unit models are developed, and the particle swarm optimization algorithm is utilized as the optimization algorithm. Then, a case study are carried out. Results show that the unequal distribution of heating and power loads among coal-fired CHP units can decrease the total irreversibility caused by heating steam pressure regulation. The operation scheduling method provided in this study can decrease the total coal consumption by 14.14 and 14.70 t/day for the CHP station integrated with an electric boiler and a heat pump, respectively. As a result, 1204.7 and 1252.44 ton CO2, and an additional ∼182 and ∼190 kUSD/year can be saved for the reference CHP station integrated with an electric boiler and a heat pump, respectively.

中文翻译：

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基于粒子群优化算法的带详细热电联产机组模型的热电联产燃煤热电联产站运行调度

摘要 高渗透率可再生能源的消纳对电网提出了相当大的挑战。燃煤热电联产 (CHP) 站被迫通过应用热电解耦技术来提高其运行灵活性。电热设备，包括电锅炉和热泵，能够提高燃煤热电联产站的运行灵活性。本研究解决了具有多个 CHP 机组和电热装置的 CHP 站的运行调度问题。开发了与详细的热电联产机组模型相结合的运行优化模型，并采用粒子群优化算法作为优化算法。然后，进行案例研究。结果表明，燃煤热电联产机组热电负荷分布不均可以降低供热蒸汽压力调节引起的总不可逆性。本研究提供的运行调度方法可以使电锅炉和热泵一体化的热电联产站的总煤耗分别减少14.14和14.70吨/天。结果，对于与电锅炉和热泵集成的参考 CHP 站，每年可以节省 1204.7 和 1252.44 吨 CO2，以及额外的~182 和~190 kUSD/年。分别。结果，对于与电锅炉和热泵集成的参考 CHP 站，每年可以节省 1204.7 和 1252.44 吨 CO2，以及额外的~182 和~190 kUSD/年。分别。结果，对于与电锅炉和热泵集成的参考 CHP 站，每年可以节省 1204.7 和 1252.44 吨 CO2，以及额外的~182 和~190 kUSD/年。