考虑综合需求响应的综合能源系统优化调度

Optimized Scheduling of Integrated Energy Systems Considering Integrated Demand Response

热电联产(CHP)机组作为综合能源系统(IES)的关键组成部分,其“以热定电”的特点,严重影响了IES对新能源的消纳能力和低碳运行的经济性。引入电转气(P2G)和碳捕集系统(CCS),将CHP机组改造为气-热-电联产(CGHP)机组,并引入了有机朗肯循环(ORC)对P2G过程中的化学热进行回收利用;对CGHP机组的气-热-电运行特性进行了研究和分析,在负荷侧引入了综合需求响应(IDR)机制,以配合源侧CGHP系统进行源荷协同调度。通过仿真验证了所提出模型及协同运行策略在促进IES消纳新能源、降低碳排放和总运营成本方面的有效性。

As a key component of integrated energy system(IES),combined heat and power(CHP)units are characterized by“heat to power”,which seriously affects IES’ability to absorb new energy and the economy of low-carbon operation.To solve this problem,this study introduced power-to-gas(P2G)and carbon capture and storage(CCS)devices,converted the CHP unit into a combined gas,heat and power(CGHP)unit,and introduced an organic Rankine cycle(ORC)to recycle the chemical heat in the P2G process.Meanwhile,the gas,heat and power operation characteristics of the CGHP unit were studied and analyzed,and the integrated demand response(IDR)mechanism was introduced on the load side to cooperate with the source-load CGHP system for source-load cooperative scheduling.Finally,the effectiveness of the proposed system model as well as the synergistic operation strategy in promoting the IES to consume new energy and reducing carbon emission and total operation cost was verified through simulation.