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首页> 外文会议>IEEE Annual International Energy Conversion Congress and Exhibition >Upgrade of 4.9MW High Speed Helper Motor Drive System of LNG Hydrocarbon Gas Compressor Train; A Comparison of Voltage Source Inverter and Load Commutated Inverter Topologies
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Upgrade of 4.9MW High Speed Helper Motor Drive System of LNG Hydrocarbon Gas Compressor Train; A Comparison of Voltage Source Inverter and Load Commutated Inverter Topologies

机译：液化液压油气压缩机列车4.9mW高速助引电机驱动系统升级;电压源逆变器和负载换向逆变器拓扑的比较

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This paper presents a comparison between Voltage Source Inverter (VSI) and Load Commutated Inverter (LCI) technologies based on a project to replace an LCI based motor drive system by a VSI based motor drive system for use on a hydrocarbon compression train. The compressor is driven by two mechanical power sources on a common shaft. One power source is a 20MW gas turbine and the other is the 4.9MW, 4905rev/min high speed electric helper motor drive system. Unlike most motor drives, the helper motor drive does not control the speed of the compressor train's common shaft. The speed of the train is set by the gas turbine. The inverter synchronises with (i.e. captures) the spinning helper motor and controls the motor's mechanical power contribution to the train's common shaft. The paper discusses the specific application engineering challenges and solutions in order to achieve the seamless change out of equipment, minimising downtime and installation cost. The details of new VSI and existing LCI based motor drive systems are presented, including the benefits of the new VSI system. In addition, a performance comparison between VSI and LCI systems is presented, based on the comprehensive motor drive system tests conducted in the factory. This comparison includes: harmonics, power factor, efficiency and torque ripple characteristics of each topology.
机译：本文介绍了电压源逆变器（VSI）和负载换向逆变器（LCI）技术的比较，基于项目通过基于VSI的电动机驱动系统更换基于LCI的电动机驱动系统，以用于碳氢化合物压缩列车。压缩机由共同轴上的两个机械电源驱动。一个电源是20MW的燃气轮机，另一个电源是4.9mW，4905REV / min高速电动助手电机驱动系统。与大多数电机驱动器不同，辅助电机驱动器不控制压缩机火车的常见轴的速度。火车的速度由燃气轮机设定。逆变器与（即捕获）旋转助手电机同步，并控制电机的机械功率贡献到火车的公共轴。本文讨论了具体的应用工程挑战和解决方案，以实现设备的无缝化，最大限度地减少停机时间和安装成本。提供了新的VSI和现有基于LCI的电机驱动系统的细节，包括新VSI系统的优势。此外，基于工厂中进行的综合电机驱动系统测试，提出了VSI和LCI系统之间的性能比较。这种比较包括：每个拓扑的谐波，功率因数，效率和扭矩脉动特性。

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