Versatile power flow transformers for compensating

专利名称：Versatile power flow transformers for

compensating power flow in a transmissionline

发明人：Kalyan K. Sen,Mey Ling Sen申请号：US09728978申请日：20001204公开号：US06384581B1公开日：20020507

专利附图：

摘要：A limited-angle power flow transformer implements power flow control in atransmission line of an n-phase power transmission system, where each phase of the

power transmission system has a transmission voltage. The transformer has n primarywindings, where each primary winding is on a core and receives the transmission voltageof a respective one of the phases of the power transmission system. The transformeralso has m secondary windings on the core of each primary winding for a total of m*nsecondary windings, where m is less than n. Each secondary winding has a voltage inducedthereon by the corresponding primary winding. For each phase, m secondary windings areassigned to the phase. Each assigned secondary winding for the phase is from a differentcore. For all phases, the secondary windings are assigned from the cores in a balancedmanner. For each phase, the secondary windings assigned to the phase are coupled inseries for summing the induced voltages formed thereon. The summed voltage is acompensating voltage for the phase, and the compensating voltage is angularly limitedwith respect to the phase.

申请人：ABB T&D TECHNOLOGY, LTD.

代理机构：Woodcock Washburn, LLP

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