基于需求响应的集群温控负荷建模及参与低频减载策略研究

发布时间：2018-06-14 13:55

本文选题：低频减载 + 需求响应　；参考：《中国电机工程学报》2017年03期

【摘要】：随着电力系统的广泛互联,低频减载技术作为保障电力系统稳定性的重要手段,具有十分重要的意义。温控负荷以其快速的响应速率和相对较宽的调控区间,逐渐成为基于需求响应的重要减载资源,相较于其他典型家居温控负荷如电空调等,家用电热水器具有更宽的温度调节空间且为纯阻性电负荷,因此成为低频减载研究的重点。文中构建了一种由电热水器负荷组成的集群温控负荷模型,同时考虑锁定约束,提出了新型序列化控制策略,以电热水器为调频减载资源,为电力系统频率恢复控制提供辅助服务。首先讨论了电热水器的热力学动态特性,基于电热耦合关系,建立集群温控负荷模型。然后,设计并建立了需求响应策略架构,包括:1)削减功率计算;2)顶层目标分配;3)设备级指令下达。最后,通过算例评估了预测精度、锁定约束等对调频效果的影响。结果表明:基于文中模型和策略,电热水器负荷构成的集群温控负荷具有较好的频率调节能力特性。
[Abstract]:With the wide interconnection of power systems, low-frequency load reduction technology as an important means to ensure the stability of power systems, has a very important significance. Temperature control load, with its rapid response rate and relatively wide range of regulation and control, has gradually become an important load reduction resource based on demand response, compared with other typical household temperature control loads such as electric air conditioning, etc. Household electric water heater has wider temperature adjustment space and pure resistive electric load, so it has become the focus of low frequency load reduction research. In this paper, a cluster temperature control load model composed of electric water heater load is constructed. Considering locking constraints, a new serialization control strategy is proposed, in which the electric water heater is used as the frequency modulation load reduction resource. Provide auxiliary service for power system frequency recovery control. Firstly, the thermodynamic dynamic characteristics of electric water heaters are discussed. Based on the coupling relationship of electricity and heat, a cluster temperature control load model is established. Then, the architecture of requirement response strategy is designed and established, including 1: 1) power reduction calculation 2) top-level target allocation / 3) equipment level instruction. Finally, the effects of prediction accuracy and locking constraints on the FM effect are evaluated by an example. The results show that the cluster temperature control load composed of electric water heater load has better frequency regulation capability based on the model and strategy in this paper.
【作者单位】：智能电网教育部重点实验室(天津大学);中国电力科学研究院;国网能源研究院;
【基金】：国家863高技术基金项目(2015AA050403) 国家自然科学基金项目(51407125) 山东省青岛市创新领军人才项目“可再生能源主导型城市园区冷热电微网系统”(15-10-3-15-(43)-zch)~~
【分类号】：TM732;TM743

【参考文献】