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首页> 外文会议>2015 IEEE Petroleum and Chemical Industry Committee Conference >Rightsizing generators through harmonic mitigation realizes energy, emissions and infrastructure reductions
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Rightsizing generators through harmonic mitigation realizes energy, emissions and infrastructure reductions

机译：通过减少谐波对发电机进行合理调整可实现能源，排放和基础设施的减少

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Sizing prime and backup generator packages for non-linear loads, (such as adjustable speed drives, solid state UPS systems, DC Drives and other SCR loads and even single phase loads such as computer systems, ballasted lighting and other power electronic loads), is not a simple process. Including the effects of the non-linear load harmonics is essential to properly sizing generator capacity. Incorrectly calculating the harmonic current contribution can result in significantly under-sizing the generator leading to brownout conditions, overloading of the generator, nuisance tripping, misoperation of the automatic voltage regulator (AVR), generator failures and load equipment damage through elevated voltage distortion. However, oversizing the generator to accommodate the non-linear load current harmonics will result in increased initial installation costs, much higher fuel and operating costs due to poor operating efficiencies and higher emissions. In an oil pipeline islanded pumping application, the problems experienced with the Adjustable Speed Drive (ASD) operation on a 200 HP pump led to the generator being significantly upsized. Not until harmonic mitigation was finally considered though, did the ASD and generator operate without issues. Computer simulations were used to demonstrate how the application of a passive wide spectrum harmonic filter (WSHF) would reduce the ASD harmonic currents to eliminate the voltage distortion and allow the operator to retrofit the installation with a more properly sized generator that provided energy/fuel savings and emissions reduction while maintaining good power quality.
机译：调整用于非线性负载（例如变速驱动器，固态UPS系统，DC驱动器和其他SCR负载，甚至单相负载，例如计算机系统，镇流照明和其他电力电子负载）的主发电机和备用发电机套件的大小是不是一个简单的过程。包括非线性负载谐波的影响对于正确确定发电机容量至关重要。错误计算谐波电流贡献可能会导致发电机尺寸严重不足，从而导致掉电情况，发电机过载，故障跳闸，自动电压调节器（AVR）误操作，发电机故障以及由于电压畸变而导致负载设备损坏。但是，由于发电机的尺寸过大，以适应非线性负载电流谐波，由于运行效率低和排放量高，将导致初始安装成本增加，燃料和运行成本大大增加。在石油管道孤岛式泵送应用中，在200 HP泵上使用可调速驱动（ASD）时遇到的问题导致发电机大大增大了尺寸。直到最终考虑了谐波抑制之后，ASD和发电机才可以正常工作。使用计算机仿真来演示无源广谱谐波滤波器（WSHF）的应用将如何减少ASD谐波电流以消除电压畸变，并使操作员可以使用尺寸更合适的发电机进行安装改造，从而节省能源/燃料和减排，同时保持良好的电能质量。

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