基于ATT7022A和TC787DS的抽油机智能节电控制器设计  

Electricity Saving Controller of Pumping Unit Based on ATT7022A and TC787DS

作　　者：周封[1] 王建波[1] 王立名[1] 王晨光[1] 

机构地区：[1]哈尔滨理工大学电气与电子工程学院,黑龙江哈尔滨150040

出　　处：《仪表技术与传感器》2008年第11期78-80,87,共4页Instrument Technique and Sensor

摘　　要：给出了一种基于ATT7022A多功能电参数采集芯片和TC787D可控硅触发电路的抽油机智能节电控制器实现方案。该控制器由3个主要的功能模块组成,即三相电参数采集模块、数据处理及逻辑控制模块、可控硅触发模块。抽油机在运行过程中的实时三相电压、电流通过三相电参数采集模块的互感器调理为弱电信号、经ATT7022A的六路二阶∑-△ADC模块[1]采样计算得到电压、电流有效值及有功功率、无功功率、功率因数等运行参数。3个模块共同组成功率因数闭环控制系统,使功率因数保持在最佳效率点处。This paper described a project of electricity saving controller of pumping unit based on ATT7022A and TC787DS.The controller was composed of three functional module, three-phased electrical parameters acquisition module, processing and control module, SCR trigger module. The working states such as three-phased voltage and current, active power, reactive power, power factor can be gained by the six two-ranked ∑-△ADC. Closed-loop control system of power factor is composed by the three modules, making the motor work in the state of the most efficient.

关 键 词：抽油机 功率因数 智能节电控制器 设计 ATT7022A TC787DS 

分 类 号：TE933.1[石油与天然气工程—石油机械设备] TM571[电气工程—电器]