通过增加电力和热能基础设施的整合来进行拥塞管理
Congestion management via increasing integration of electric and thermal energy infrastructures
摘要：
由于可再生能源发电在电网中造成的拥堵可以通过整合电力和热力基础设施来有效管理，后者以大型区域供热（DH）网络为代表，通常由大型热电联产（CHP）工厂供电。热电联产电厂可以通过调整热电比在电力市场上出售电力，进一步提高区域供热多公用事业的利润率。后者仅对某些热电联产厂是可能的，这些热电联产厂允许将两种商品的产生分离，即由两个自变量（自由度）提供的商品或通过将它们与热能储存和电力到热量（P2H）单元集成。因此，热电联产机组可以帮助电网的拥塞管理。提出了一种详细的混合整数线性规划（MILP）最优化模型，用于求解电力热力一体化系统网络约束下的机组组合问题。开发的模型包含热电联产装置的有用效果的详细表征，即，热量和功率，作为一个和两个自变量的函数。无损耗直流流近似模型的电力传输网络。区域供热模式包括使用燃气锅炉、电锅炉和热能储存。对IEEE 24总线系统进行的研究突出了对多能源系统进行综合分析的重要性，以利用电力和热力部门联合运行的灵活性，并管理电网中的拥塞。
英文摘要：
Congestion caused in the electrical network due to renewable generation can be effectively managed by integrating electric and thermal infrastructures, the latter being represented by large scale District Heating (DH) networks, often fed by large combined heat and power (CHP) plants. The CHP plants could further improve the profit margin of district heating multi-utilities by selling electricity in the power market by adjusting the ratio between generated heat and power. The latter is possible only for certain CHP plants, which allow decoupling the two commodities generation, namely the ones provided by two independent variables (degrees-of-freedom) or by integrating them with thermal energy storage and Power-to-Heat (P2H) units. CHP units can, therefore, help in the congestion management of the electricity network. A detailed mixed-integer linear programming (MILP) optimization model is introduced for solving the network-constrained unit commitment of integrated electric and thermal infrastructures. The developed model contains a detailed characterization of the useful effects of CHP units, i.e., heat and power, as a function of one and two independent variables. A lossless DC flow approximation models the electricity transmission network. The district heating model includes the use of gas boilers, electric boilers, and thermal energy storage. The conducted studies on IEEE 24 bus system highlight the importance of a comprehensive analysis of multi-energy systems to harness the flexibility derived from the joint operation of electric and heat sectors and managing congestion in the electrical network.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
