A novel energy-saving traction supply system for urban mass transit

Abstract

For efficient use of regenerative braking energy in traction supply system, a novel Energy-saving traction supply system is proposed in this paper, consisting of diode rectifiers with high-power PWM rectifiers. In this paper, a multiple topology with PWM rectifiers is given, as well as its control strategy. Also, based on the output characteristics of diode rectifier, a coordinated control strategy between diode and PWM rectifiers is proposed. At the end of this paper, results from simulation and experiment are presented, demonstrating that the novel traction supply system proposed will see its widely application in the future.

Finite‐control‐set model predictive control for eight‐switch three‐phase NPC converters

“…In that sense, compared to the conventional diode rectifiers, this topology provides several salient merits including power flow from source to the load, and vice versa, operation with unity power factor, high‐quality voltage and current delivery to the load, etc. These remarkable features have attracted the attention of many research institutions, especially the ability of bidirectional power exchange between AC and DC output terminals while maintaining a desired power factor . Therefore, the aforementioned discussion leads to a motivation for employing ESTP‐NPC in future railway traction systems, as described in this paper.…”

“…These remarkable features have attracted the attention of many research institutions, especially the ability of bidirectional power exchange a Correspondence to: Longda Wang. E-mail: ldwangdl@sina.com Information Science and Technology College, Dalian Maritime University, Dalian 116023, China between AC and DC output terminals while maintaining a desired power factor [5][6][7][8]. Therefore, the aforementioned discussion leads to a motivation for employing ESTP-NPC in future railway traction systems, as described in this paper.…”