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SYSTEM AND CONTROL METHOD TO IMPROVE THE RELIABILITY OF MINERAL INSULATED ELECTRICAL CABLES

机译:提高矿用绝缘电缆可靠性的系统和控制方法

摘要

Embodiments include a system, control process, and method for improving the reliability of mineral insulated electrical cables for use in oil and gas industry applications. The embodiments may include a PWM variable speed drive having an optimized operating frequency, a sine wave filter connected to an output of the drive and designed to mitigate reflective voltage wave spikes from the drive's PWM voltage pulses, a mineral insulated electrical heater cable connected to the filter, and an external controller for receiving voltage, current, and temperature feedback to create a voltage set point at which the drive operates. The embodiments may (i) mitigate common failure mechanisms of mineral insulated cables operating at a medium voltage level and in a temperature range of from 200C to 700C; (ii) extend the range of application of mineral insulated cables; and (iii) prevent high voltage spikes from causing damage to the insulant material of heater cables.
机译:实施例包括用于提高在石油和天然气工业应用中使用的矿物绝缘电缆的可靠性的系统,控制过程和方法。实施例可以包括具有最佳工作频率的PWM变速驱动器,连接到驱动器的输出并且被设计为减轻驱动器的PWM电压脉冲的反射电压波尖峰的正弦波滤波器,连接到驱动器的矿物绝缘电加热器电缆。滤波器和一个外部控制器,用于接收电压,电流和温度反馈,以创建驱动器工作的电压设定点。实施例可以(i)减轻在中压水平和200℃至700℃的温度范围内操作的矿物绝缘电缆的常见故障机制; (ii)扩大矿物绝缘电缆的应用范围; (iii)防止高压尖峰损坏加热电缆的绝缘材料。

著录项

  • 公开/公告号WO2016040335A1

    专利类型

  • 公开/公告日2016-03-17

    原文格式PDF

  • 申请/专利权人 BOURGEOIS LEE JOSEPH;

    申请/专利号WO2015US48966

  • 发明设计人 BOURGEOIS LEE JOSEPH;

    申请日2015-09-08

  • 分类号H01B7/02;H01B7/42;H01B3/12;H01B11/06;

  • 国家 WO

  • 入库时间 2022-08-21 14:18:28

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