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首页> 外文会议>60th Electric Furnace Conference Nov 10-13, 2002 San Antonio, Texas >Multiple Harmonic Filter Design to Maximize Furnace Power Comply with IEEE Harmonic Limits
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Multiple Harmonic Filter Design to Maximize Furnace Power Comply with IEEE Harmonic Limits

机译：多重谐波滤波器设计，使炉功率最大化，符合IEEE谐波限值

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The differences between operating the circuit with and without the filters are summarized in the table below. The maximum power values have been per unitized relative to the No Capacitors case. The benefits of installing either of the filter options include the following: 1. Maximum power transfer is increased by 12% with the filter(s). 2. Without filter(s) the capacity of the substation transformer is the bottleneck for maximizing power transfer. The overall MVA transfer is reduced by almost 15%. 3. Power factor at the PCC is improved from 0.73 to 0.95 by adding the filter(s) for the maximum power cases. 4. Real power losses are reduced in the substation transformer and source impedance. 5. Either filter option improves the peak power factor to 0.95 or better, so the power factor penalty should disappear. 6. Additional benefits for installing the set of 4 harmonic filters instead of the single 3rd filter include: 6.1 Current total demand distortion will be reduced to meet IEEE standards. 6.2 Voltage harmonics on the 34.5 kV system are lower. This reduces the power distortion that other electrical equipment in the plant experiences. 6.3 Partial switching is available (removing the higher order filters first) if it is desired to reduce the Mvar between heats or at any other time.
机译：下表总结了带和不带滤波器的电路工作之间的差异。相对于“无电容器”情况，最大功率值已经单位化。安装任何一个滤波器选件的好处包括：1.滤波器使最大功率传输增加了12％。 2.如果没有滤波器，变电站变压器的容量是最大程度地传输功率的瓶颈。整个MVA传输减少了将近15％。 3.通过添加最大功率情况下的滤波器，PCC的功率因数从0.73提高到0.95。 4.减少变电站变压器和电源阻抗中的实际功率损耗。 5.任一滤波器选项均可将峰值功率因数提高到0.95或更高，因此功率因数损失应消失。 6.安装4个谐波滤波器而不是单个3rd滤波器的其他好处包括：6.1将减少当前的总需求失真，以满足IEEE标准。 6.2 34.5 kV系统上的电压谐波较低。这样可以减少工厂中其他电气设备遭受的功率失真。 6.3如果希望在加热之间或在任何其他时间降低Mvar，则可以进行部分切换（首先移除高阶滤波器）。

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