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针对小浪底电站地下厂房桥机原电气系统技术较落后、控制精度较差、电气系统设备老化严重及设备故障率高等问题,采用目前较成熟先进的基于数据总线式PLC控制技术和全数字式矢量变频控制技术,全面升级改造了原电气控制系统和电气传动系统(包括电动机),改造后的电气系统显著提高了桥机的控制精度,也提高了设备运行可靠性尤其是并车运行时的同步可靠性。
In order to solve the problems that the original electrical system of Xiaolangdi underground power plant is relatively backward, the control precision is poor, the aging of electrical system equipment is serious and the equipment failure rate is high, the current more mature and advanced PLC-based data bus control technology and all-digital vector frequency conversion Control technology to fully upgrade the original electrical control system and electrical drive system (including the motor), the electrical system after the rebuild significantly improve the control accuracy of the bridge machine, but also improve the reliability of the equipment, especially when running parallel and reliable Sex.