作者: Mihaela Popescu , Alexandru Bitoleanu , Alexandra Preda
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摘要: This paper concentrates on the LCL filter with damping resistance intended to connect shunt active power of an dc-traction substation point common coupling transmission grid. In order find design conditions and conceive a algorithm, attention is directed transfer functions related currents associated frequency response. The mathematical foundation method based meeting requirements significant attenuation high-frequency switching current, concurrently unalterated flow current that needs be compensated by filtering. It pointed out there are practical limitations compromise must made between two requirements. To quantify extent which harmonics influenced imposing magnitude response at both highest harmonic frequency, performance indicator defined. As additional criterion, losses taken into consideration. validity effectiveness proposed proved simulation results experimental tests laboratory test bench small scale reproducing specific six-pulse diode rectifier.