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首页> 外文期刊>IEEE Transactions on Power Delivery >Application of dominant harmonic active filter system with 12 pulsenonlinear loads
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Application of dominant harmonic active filter system with 12 pulsenonlinear loads

机译：具有12个脉冲非线性负载的优势谐波有源滤波器系统的应用

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摘要

Harmonic filtering is required for 12 pulse rectifier-utilityninterface to meet IEEE 519 harmonic current limits. Passive filterntechniques employ tuned L-C filters at dominant 11th and 13th harmonicnfrequencies. However, they also require 5th and 7th tuned filters tonavoid series and parallel resonance conditions. State of the art activenfiltering solutions require high bandwidth and relatively large ratingnPWM inverters for harmonic filtering of 12 pulse rectifier loads. Thusnexisting passive and active harmonic filtering solutions are notncost-effective for high power 12 pulse rectifier loads. Dominantnharmonic active filter (DHAF) based on square-wave inverters is proposednto cost-effectively meet IEEE 519 harmonic current limits for 12 pulsenrectifier loads. The proposed DHAF system employs square-wave invertersnswitching at 5th and 7th harmonic frequencies, which are transformerncoupled in series with 11th and 13th passive filters respectively. Thensquare-wave inverters are controlled to provide `harmonic isolation'nbetween the supply and load at 5th and 7th harmonic frequencies. Thensquare-wave inverters are rated 1%-2% of the load kVA rating. Thenproposed DHAF system eliminates the need for large kVAR rated and bulkyn5th and 7th passive filters, delivers superior harmonic filteringnperformance, and provides cost-effective harmonic filtering solution.nSimulation results are given to validate the `harmonic isolation'nfeature at 5th and 7th harmonic frequencies, and also demonstratenharmonic filtering required to meet IEEE 519 harmonic current limits
机译：12脉冲整流器-实用程序接口需要谐波滤波，以满足IEEE 519谐波电流限制。无源滤波器技术采用占主导地位的11和13谐波频率的调谐L-C滤波器。但是，它们还需要第5和第7调谐滤波器来避免串联和并联谐振条件。先进的有源滤波解决方案需要高带宽和相对较大额定值的nPWM逆变器，才能对12个脉冲整流器负载进行谐波滤波。因此，对于高功率12脉冲整流器负载，现有的无源和有源谐波滤波解决方案并非经济有效。提出了基于方波逆变器的谐波谐波有源滤波器（DHAF），以经济高效地满足12个脉冲整流器负载的IEEE 519谐波电流限制。所提出的DHAF系统采用方波逆变器n在5和7谐波频率上开关，分别与11和13无源滤波器串联耦合。然后控制方波逆变器以在电源和负载之间以5次和7次谐波频率提供“谐波隔离”。然后方波逆变器的额定值为负载kVA额定值的1％-2％。然后提出的DHAF系统消除了对大型kVAR额定容量以及bulkyn5和7级无源滤波器的需求，提供了卓越的谐波滤波性能，并提供了具有成本效益的谐波滤波解决方案。给出了仿真结果，以验证5和7谐波频率下的“谐波隔离”功能，并演示了满足IEEE 519谐波电流限制所需的谐波滤波

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