Amplitude-Phase Detection for Power Converters Tied to Unbalanced Grids With Large X/R Ratios
IEEE Transactions on Power Electronics(2022)
摘要
Amplitude-phase information of the voltage/current phasor, which is the prerequisite for grid-tied converter control and protection, can change almost instantaneously in low-voltage distribution systems with small X/R ratios. However, the equivalent impedances of high-voltage power systems are usually inductive (with large X/R ratios), and the power flow of pertinent grids generates decaying dc (D...
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关键词
Transient analysis,Circuit faults,Impedance,Power transmission lines,Power system stability,Equivalent circuits,Voltage control
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