高比例新能源接入下谐波电能计量方法研究  

Research on Harmonic Energy Measurement Method Under High Proportion New Energy Access

作　　者：李付存 张岩 于丹文 李广磊 许庆燊 LI Fucun;ZHANG Yan;YU Danwen;LI Guanglei;XU Qingshen(State Grid Shandong Electric Power Research Institute,Jinan 250003,China;Key Laboratory of Power System Intelligent Dispatch and Control,Ministry of Education(Shandong University),Jinan 250061,China)

机构地区：[1]国网山东省电力公司电力科学研究院,山东济南250003 [2]电网智能化调度与控制教育部重点实验室(山东大学),山东济南250061

出　　处：《山东电力技术》2022年第3期52-58,共7页Shandong Electric Power

基　　金：国家自然科学基金项目(51977123);国网山东省电力公司科技项目“规模化分布式发电并网状态评估技术研究及应用”(520626200014)。

摘　　要：实现电网低碳运行、清洁能源高比例消纳,是电网公司落实“四个革命、一个合作”能源安全战略、助力实现“碳达峰、碳中和”目标的重要途径之一,大量新能源接入而形成的新能源电网中谐波含量远大于传统电网,传统电能计量方案难以满足新能源电网电能计量新需求。在分析发电、用电场景下传统电能计量方案的缺点后,提出一种计及新能源电网谐波的电能计量方案。该方案可实现用户用电基波电能计量、用户基波发电量计量以及用户谐波电能计量。并以上述计量功能为基础,分析新型电能计量方案的用户补偿以及谐波处罚策略,给出新型计量方案下的用户电能费用计算方法。最后通过算例分析证明了新方案可保证供电企业以及用户各方的利益。Realizing low-carbon operation of power grid and high proportion of clean energy consumption is one of the important ways for power grid companies to implement the energy security strategy of“four revolutions and one cooperation”and help achieve the goal of“carbon peak and carbon neutralization”.The harmonic content in the new energy grid formed by a large number of new energy access is much greater than that in the traditional power grid,and the traditional power metering scheme is difficult to meet the new demand of power metering in the new energy grid.After analyzing the shortcomings of traditional energy metering schemes in the scenario of power generation and consumption,an energy metering method considering the harmonics of new energy grid was proposed,which can realize the fundamental wave energy measurement of users,the fundamental wave power generation measurement of users and the harmonic energy measurement of users.The user compensation and harmonic penalty strategy of the new power metering scheme were analyzed based on above-mentioned functions,and the calculation method of user energy cost was given.Finally,an example was given to verify that the new scheme can ensure the interests of power supply enter-prises and users.

关 键 词：新能源 电能计量 谐波 基波 电能表 

分 类 号：TM933.4[电气工程—电力电子与电力传动]