多模式双向平移智能用电系统及其实现方法

Multi-Mode Intelligent Power Utilization System with Two-Way Shiftable Feature and Its Implementation

本文提出了一种支持负荷双向平移的智能用电系统,该系统以智能用电设备为基础,具有主动响应、被动响应和人工响应三种智能用电响应模式。主动响应基于电源电压及频率的越界信息,由智能用电设备自主切换工作状态,快速响应电网稳定运行需求;被动响应模式基于工作和待机设备的用电信息,由调度系统根据用电信息自上而下将负荷调控指标逐级分解至用电设备,再由用电设备有序响应,以平抑源侧电力输出随机波动。人工参与模式则基于保障用电安全的需要,由电网调度引导、用户远程确认用电设备启停。上述三种模式均支持负荷双向平移,即既可调减也可调增。设计了一种基于编码的用电信息表征方法,计及了待机设备的用电信息,为负荷调增提供了信息支撑;提出了可综合反映用电设备属性及用户类型的可平移指数概念,为确定负荷调度优先次序提供了依据。

This paper presents an intelligent power utilization system with two-way shiftable feature, which is based on smart appliances and works with 3 response modes, i.e., active response mode, passive response mode and artificial participation mode. In an active response mode, smart appliances switch their operating states actively on account of frequency and voltage limit violation in order to meet power grid stable operation demand. In a passive response mode, the dispatching system decomposes load regulation demand top-down to smart appliances in consideration of power utilization information of standby load and load in working state and makes smart appliances response orderly as required. In this way, the power output random fluctuations caused by renewable energy power generation can be suppressed effectively. In an artificial participation mode, smart appliances work on or off under the guidance of the dispatching system combined with user remote confirmation to ensure electrical safety. Load can be increased or decreased as needed in 3 above modes. It designs a code-based representation method for power utilization information and takes account of standby load, which lays the information foundation of load increment. It also presents shiftable index, which can be used to comprehensively reflect feature of electrical equipment and users and provides a basis for load priority.