Harmonic mitigation in traction supply system by using half bridge converter

Madane, Sujay; Deokar, Sanjay A.

doi:10.1109/icdmai.2017.8073503

Cited by 2 publications

(1 citation statement)

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“…In recent years, double-track electrified railways in China have been developing towards the direction of high speed and heavy haul. Single phase railway locomotives are three-phase unbalanced loads from the point of a public power system (PPS) and will lead to negative sequence current penetration into PPS [1][2][3]. A negative sequence current will greatly threaten the safe operation of electrical machines and power systems.…”

Section: Introductionmentioning

confidence: 99%

Novel Uninterruptible Phase-Separation Passing and Power Quality Compensation Scheme Based on Modular Multilevel Converter for Double-Track Electrified Railway

Tian

Zhou

2020

Energies

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Over-voltage and over-current problems of locomotives when passing phase separation and negative sequence current penetration seriously influence the safety of double-track electrified railway and public power systems. In order to solve these problems, this paper proposes a novel uninterruptible power supply phase separation passing and power quality compensation (UPSP-PQC) scheme for double-track electrified railway. Three working modes of UPSP-PQC are put forward, including uninterruptible phase separation passing mode, power quality compensation mode and uninterruptible phase separation passing priority, and power quality compensation optimum mode. A three-leg modular multilevel converter (MMC) topology of UPSP-PQC is proposed and the corresponding control strategy has been studied. PSCAD/EMTDC simulation is performed to verify the correctness and effectiveness of the proposed scheme and its control method.

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Section: Introductionmentioning

confidence: 99%