论文标题
区域供暖网络的重新配置,以提高电力系统单位承诺的操作灵活性
Reconfiguration of District Heating Network for Operational Flexibility Enhancement in Power System Unit Commitment
论文作者
论文摘要
大量采用热量和电源(CHP)单元需要协调电力系统和地区供暖系统(DHS)的运行。利用区域供暖网络(DHNS)的可重新配置特性提供了一种经济高效的解决方案,可以通过重新分布DHS中的热负载来增强电力系统的灵活性。在本文中,提出了一项单位承诺,以考虑组合电力和可重新配置的加热网络(UC-Cerhn)来协调电力系统和DHS的日期安排。 DHS通过考虑可重构DHN作为非线性和混合企业模型的配方。同样,在形成的DHS模型中引入了辅助能量流量变量,以使承诺问题可处理,其中计算负担大大降低。提出了广泛的案例研究,以验证近似模型的有效性,并说明拟议方法在拥塞管理和风能适应方面的潜在好处。 (通讯作者:Hongbin Sun)
Massive adoptions of combined heat and power (CHP) units necessitate the coordinated operation of power system and district heating system (DHS). Exploiting the reconfigurable property of district heating networks (DHNs) provides a cost-effective solution to enhance the flexibility of the power system by redistributing heat loads in DHS. In this paper, a unit commitment considering combined electricity and reconfigurable heating network (UC-CERHN) is proposed to coordinate the day-ahead scheduling of power system and DHS. The DHS is formulated as a nonlinear and mixed-integer model with considering the reconfigurable DHN. Also, an auxiliary energy flow variable is introduced in the formed DHS model to make the commitment problem tractable, where the computational burdens are significantly reduced. Extensive case studies are presented to validate the effectiveness of the approximated model and illustrate the potential benefits of the proposed method with respect to congestion management and wind power accommodation. (Corresponding author:Hongbin Sun)