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大初始阻力矩分布式调相机的变频启动控制

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同步电动机作为同步旋转设备,由于其无功响应的自发、无延时性的特点,能够快速抑制电网暂态过电压,目前正在大范围应用于分布式调相机.由于分布式调相机没有顶轴油系统,因此初始启动阻力矩较大,使用常规的变频启动控制方法难以保障机组的启机成功率.本文提出对变频启动系统初始动力矩进行分段给定的控制方法,既能解决分布式调相机启动困难的问题,又能很好的按照原定启机转速曲线完成启机任务.
Variable Frequency Starting Control of Distributed Condenser with Large Initial Resistance Moment
As a synchronous rotating device,synchronous motors can quickly suppress transient overvoltage in the power grid based on their spontaneous and non delay characteristics of reactive power response.They are currently widely used in distributed condensers.Due to the lack of a top shaft oil system in distributed condensers,the initial starting resistance torque is relatively high,and conventional variable frequency starting control methods are difficult to ensure the success rate of unit startup.This article proposes a control method for dividing the initial power moment of the variable frequency starting system into segments,which can not only solve the problem of difficult starting of distributed condensers,but also complete the starting task well according to the original starting speed curve.

static variable frequency starterinitial resistance momentsynchronous motordistributed condenser

简优宗、原晓琦、张亦驰、杨合民、胡静、吴彦飞、吴晨阳

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南瑞集团(国网电力科学研究院)有限公司,南京 211106

国电南瑞科技股份有限公司,南京 211106

国电南瑞南京控制系统有限公司,南京 211106

静止变频启动器 初始阻力矩 同步电动机 分布式调相机

2024

大电机技术
哈尔滨大电机研究所

大电机技术

CSTPCD
影响因子:0.329
ISSN:1000-3983
年,卷(期):2024.(6)