基于聚类的居民用电优化潜力研究

由于用电习惯和生产模式的差异,不同用户的用电曲线和负荷调整能力存在差异,而历史用电数据揭示了其用电规律。以重庆市城镇居民用电负荷为研究对象,基于数据驱动的负荷优化评估方法,通过负荷弹性系数来识别用户用电负荷在时间上的灵活性与可控性。结果表明,重庆市居民侧预计最大可调负荷达196.80万kW,用电优化潜力可达1180.82万kW·h。

我国家用电器节能潜力分析

本文在大量家用电器市场数据调研的基础上,通过建立节能潜力预测模型,分三种情景开展了我国典型家用电器节能潜力分析。结果显示,通过提升高效节能产品的市场占有率,在高效情景1条件下,空调、电冰箱、洗衣机、液晶电视和电热水器等主要家电产品2021年-2025年的节能量累计达1465亿千瓦时,2021年-2030年节能量累计达6812.5亿千瓦时,相当于减排4亿吨二氧化碳。通过对不同节能产品政策补贴投入的节能效益分析,空调和电热水器财政投资回报期较短,单位节能量投入较小。

基于同期售电量大数据处理技术的分行业用电分析与预测

同期售电量因其统计特点具有实时反映售电量的优势,通过框架研究,建立同期售电量与新版行业分类的基联关系,通过技术手段,客观准确的将全社会用电量进行行业细分及科学分类,充分收集内部、外部数据信息,挖掘分析影响行业用电量的因素;同时,在分行业同期售电量相关分析的基础上,尝试建立时间序列预测模型,预测月度及年度同期售电量情况,为提前把握电力增长趋势,明确各行业用户用电潜力增长,为供电企业更好地把握行业发展态势以及服务精细化提供数据支撑。

A Tentative Analysis of the Use of Potential by Commercial Bank in Controlling Credit Scale

This article brings forward the conception of potential and filed potential in bank's competition under the inspiration of law of electric current in electrodynamics. It discusses the impact of potential shifting on commercial bank's credit scale and builds up a model for commercial bank to control the scale by credit pricing and risk policy in a dynamic way, and also gives some advice to domestic commercial bank for improving loan business, aiming to settle down the existing credit management problems.

Limiting Use of Potential Energy Storage Compared to Batteries for a Lebanese Hybrid Wind/PV System

In l,ebanon, hybrid wind/PV systems are used to provide electricity when the public electricity is cut off This paper treats the storage problems of electrical energy generated by the used renewable sources. A theoretical study on two types of electrical energy storage systems is given. These systems are the electrochemical energy storage devices （batteries） and the potential （or hydraulic） energy storage system. In order to find the limiting case of use between these two energy storage systems, economical study and comparison between them are discussed and analyzed.