三相高精度电能计量电路设计电子与通信工程专业论文.docxVIP

摘 摘 要 随着我国的国民经济的发展，工业、农业、商业、居民用电的日益增长，供 电量日益增加，电能作为一种具有多种参数指标、直接反映电力企业经济效益的 商品备受重视。自电能开始使用以来，各个国家都在不断努力提高电能计量的准 确度，电能计量准确度的提高，不仅可以整体提高电能计量水平，而且能促进能 源产业进步，推动国民经济发展。 高精度三相电子式多功能电能表是我国电能表行业研究的重要课题，该类型 的电能表能广泛的应用于电能的高精度计量和工业自动化系统对电量的检测，如 检测电流、电压、频率、有功功率、无功功率等。本论文主要从测量电路方案选 择、电能计量方法及公式推导，电路实现等方面论述了三相多功能电能计量电路 的工作原理和实际应用，最后本文对设计的电能计量电路的功能和性能做了全面 的测试，测试数据验证了算法的正确性，设计符合预期的设计要求，功能、性能 达到了设计目标。 关键词：电能计量多功能高精度 中图分类号：TM933．4 AbstractWith Abstract With the development of the national economy and the growth of electricity consumption in industry,agriculture，commerce and everyday iiving’electricity generation and supply is accelerated．Power energy with a variety of electricaI paramete隋is attracting much attention as a commodity directly related to the to ecOⅡomic efficiency of power enterprises．Each country has been working improve the accuracy of metering since electric energy was put into use·ⅣIore accuracy metering standard can not only improve a country’S metering ability but also boost the development of energy industry and national economy． How to design the 3 phase stafic multi-function energy meter IS a important use for task for the engineers in our country,this type of the instrument can me勰uring electrical energy high accurately and monitoring electrical value in iⅡdustr．al automatic controlling system，for example current,voltage,frequency, active power,reactive power,etc．In this dissertation had discussed the function， technicaI data and application of 3 phase multi—function energy meter IC from the fields of selecting the plan of measuring circuit,the way of energy calculation and formulas derivation．Finally,in this paper the function and performance of the energy meter IC is tested comprehensively．The test data proves that the algorithm is correct，the design meets the design requirements，and function and performance reach the design goab． Keywords：Electricity energy metering Multi-function High accuracy Classification Code：TM933．4 2 引 引 言 1．1电能表的发展 电力是国家经济发展的命脉，随着工业