Fine Tuning of On-Board Traction Converters for High-Speed Electric Multiple Units at Depot

Fine Tuning of On-Board Traction Converters for High-Speed Electric Multiple Units at Depot

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This article presents a meticulous exploration of on-board traction converters deployed in Electric Multiple Units (EMUs).The study involves the development of a comprehensive traction converter and control system, encompassing essential elements such as transformers, front-end rectifiers, and DC link capacitors.The precise control of the front-end rectifier’s switching states is crucial for achieving high-quality power.

A new application of the advanced Hybrid Particle Swarm Optimization (Hybrid PSOS) technique for the optimization of controller parameters is presented.This parameter tuning process aims to minimize cock-insertable the integral time absolute error (ITAE), a critical metric governing the regulation of DC-link capacitor voltage.Simulation results showcase the impressive attributes of on-board traction converters, including low harmonic content, a high-power factor, and stable DC voltage.

Additionally, a rigorous comparative analysis is conducted between Hybrid PSOS and other established algorithms like Symbiotic Organisms Search (SOS) and Particle Swarm Optimization (PSO).Hybrid PSOS traction unit outperforms SOS and PSO, with a minimal overshoot of 1.3401%, faster settling time of 0.

2413 seconds, compared to SOS (0.3884 seconds) and USB Cables PSO (0.5531 seconds).

Total Harmonic Distortion (THD) for secondary line currents, the values are 12.48% for PSO, 2.17% for SOS, and 1.

08% for Hybrid PSOS.Hybrid PSOS consistently demonstrates its superiority, significantly enhancing system performance and stability.This research underscores the substantial potential of on-board traction converters, emphasizing their role in facilitating efficient and stable electric multiple unit (EMU) operations.