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arXiv 1301.5593eess.SYcs.SY
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面向需求侧管理的分组直接负荷控制机制

A Packetized Direct Load Control Mechanism for Demand Side Management

Boston University(波士顿大学)

Bowen Zhang, John Baillieul

AI总结:

提出一种分组直接负荷控制(PDLC)机制,通过固定时间能量使用授权和准分散控制协议,在空调温控应用中证明其能稳定室温、保证舒适度并减少能耗振荡。

摘要:

电力峰值可能危害电网稳定性,并导致额外的发电成本以平衡供需。通过开发智能家电网络和准分散控制协议,直接负荷控制(DLC)通过直接控制联网家电的开关来减少峰值消耗。本文提出一种分组DLC(PDLC)解决方案,并通过空调温度控制应用进行说明。这里“分组”指固定时间的能量使用授权。每个房间的消费者选择其偏好设定点,然后本地家电池的操作员将确定设定点周围的舒适带。我们使用热动态模型研究恒温家电的占空比。本文提出三个定理。前两个定理评估PDLC在瞬态和稳态运行中的性能。第一个定理证明,当每个离散间隔内应用固定数量的分组时,平均室温将收敛到平均房间设定点。第二个定理证明PDLC解决方案保证将所有房间的温度控制在其各自的舒适带内。第三个定理提出一种分配方法,将定理1的结果与定理2的假设联系起来,使整体PDLC解决方案有效。这些定理的直接结果是,我们可以减少无控制时发生的能耗振荡。提供仿真以验证理论结果。

英文摘要:

Electricity peaks can be harmful to grid stability and result in additional generation costs to balance supply with demand. By developing a network of smart appliances together with a quasi-decentralized control protocol, direct load control (DLC) provides an opportunity to reduce peak consumption by directly controlling the on/off switch of the networked appliances. This paper proposes a packetized DLC (PDLC) solution that is illustrated by an application to air conditioning temperature control. Here the term packetized refers to a fixed time energy usage authorization. The consumers in each room choose their preferred set point, and then an operator of the local appliance pool will determine the comfort band around the set point. We use a thermal dynamic model to investigate the duty cycle of thermostatic appliances. Three theorems are proposed in this paper. The first two theorems evaluate the performance of the PDLC in both transient and steady state operation. The first theorem proves that the average room temperature would converge to the average room set point with fixed number of packets applied in each discrete interval. The second theorem proves that the PDLC solution guarantees to control the temperature of all the rooms within their individual comfort bands. The third theorem proposes an allocation method to link the results in theorem 1 and assumptions in theorem 2 such that the overall PDLC solution works. The direct result of the theorems is that we can reduce the consumption oscillation that occurs when no control is applied. Simulation is provided to verify theoretical results.

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。

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