1756-OF4
1756-OF4
1756-OF4
厦门光沃自动化设备有限公司
联系人:小杨
电话:0592-5709821
电话:18030229050
***:1878187406
邮箱:1878187406@***.com
1756-OF4
传统抽油机变频器改造的难点
国内对抽油机变频节能改造做了大量的尝试,但都不太成功,主要问题是:
1) 抽油机在一个工作循环中,有两次发电状态,尤其当配重不平衡时,产生的“泵升电压”很高,靠加大变频器直流侧电解电容和减小制动电阻值,不能完全解决问题,并且随着油层的变化,“泵升电压”也在变化。
2) 抽油机起动需要较大的起动转矩,如变频器参数设置不当,易造成过流或不能起动。
3) 以往的变频节能改造设计方案很少考虑油井的油面、油浓度的变化等情况。在提高产量方面,效果不佳。
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