由交易控制引发的负载同步与持续振荡
Load Synchronization and Sustained Oscillations Induced by Transactive Control
AI总结：
本文研究了基于市场的协调策略在控制大量电力负载时导致负载同步和功率振荡的问题，探讨了市场价格变化、用户报价曲线多样性等因素的影响，并通过案例研究提出改进方案。
摘要：
交易或市场导向的协调策略近期被提出用于控制大量电力负载的总需求。此类方案提供了操作优势，如强制配电馈线容量限制，并允许用户根据其愿意支付的价格灵活消费能源。然而，本文证明这些方案也容易导致负载同步和功率振荡。本文采用了一种交易能源框架，并应用于一组恒温控制负载（TCLs）。一种改进的TCL切换逻辑考虑了市场协调信号，同时结合自然的滞后切换条件。对这种市场导向协调方案的研究表明，多个因素可能促成负载同步，包括市场价格的剧烈变化、用户指定报价曲线的缺乏多样性、周期性遇到的低馈线限制以及用户报价曲线的形式。案例研究展示了市场导向协调策略面临的挑战，并提供了解决这些问题的改进建议。
英文摘要：
Transactive or market-based coordination strategies have recently been proposed for controlling the aggregate demand of a large number of electric loads. Such schemes offer operational benefits such as enforcing distribution feeder capacity limits and providing users with flexibility to consume energy based on the price they are willing to pay. However, this paper demonstrates that they are also prone to load synchronization and power oscillations. A transactive energy framework has been adopted and applied to a population of thermostatically controlled loads (TCLs). A modified TCL switching logic takes into account market coordination signals, alongside the natural hysteresis-based switching conditions. Studies of this market-based coordination scheme suggest that several factors may contribute to load synchronism, including sharp changes in the market prices that are broadcast to loads, lack of diversity in user specified bid curves, low feeder limits that are encountered periodically, and the form of user bid curves. Case studies illustrate challenges associated with market-based coordination strategies and provide insights into modifications that address those issues.
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