Title:
Real-time-detection-of-negative
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Description: The cophase traction power supply system aims at achieving power quality comprehensive compensation．A current
detection method based on synchronous reference frame transformation is proposed．The method can decompose the load current
real-timely into fundamental positive-sequence active component，fundamental positive-sequence reactive component，fundamental
negative-sequence component and harmonic component，which lays a foundation for comprehensive compensation．There are
nonlinear relation between compensation strength of power quality and device capacity．The paper proposes the concept of
compensation degree and gives the relationship between compensation degree and power quality parameters．By giving expected
power quality parameters，it adjusts compensation ratios of negative，reactive and harmonics instantaneously，so that the IPFC
capacity can be allocated between power quality compensating parameters optimally and real-timely，thus achieving capacity optimal
satisfactory compensa
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同相牵引供电系统负序_谐波_无功电流实时检测方法及其补偿策略.pdf
