摘要
望亭电厂14号机组渣浆泵进行了国产ASD380D-160变频技术改造。该变频器在传统变频调压VVVF(Variable Voltage Variable Frequency)控制策略的基础上优化了矢量控制,在特定条件下通过特定消谐算法降低了变频输出电压谐波。分析了连续运行13个月所产生的节能效益,以及改造后节水所产生的效益;因为此次技术改造实现了对渣浆池水位的PID闭环控制,除节电、节水外,基本结束了观测水位的繁琐劳动方式,同时也基本停止了对补水阀门的频繁操作;因为实现了恒水位控制,避免了空泵运行,有效延长了水泵的使用寿命且降低了其日常机械维护费用。
The ash-water pump of Wangting Power Plant unit 14 is reconstructed using homemade ASD380D-160 inverter,which is optimized with vector control on the basis of conventional VVVF （Variable Voltage Variable Frequency） control strategy to reduce the output harmonics by SHE （Selected Harmonic Eliminated） specific algorithm under certain conditions. The energy-saving and water-saving of 13 months＇ continuous operation are analyzed. Furthermore,the implementation of PID closed-loop control for the water level of ash-water pool nearly avoids the manual observation and the frequent operation of water supply valve,and the implementation of constant water level control avoids the pump operation without load,which extends pump service life and reduces its maintenance cost.
出处
《电力自动化设备》
EI
CSCD
北大核心
2007年第9期116-119,共4页
Electric Power Automation Equipment
关键词
变频技术
节能
闭环控制
渣浆泵
VF technique
energy save
closed-loop control
ash-water pump
