Influence of the braking power control of the traction asynchronous machine in the voltage vector control system under DC

Authors

  • Yu. О. Slobodenyuk Kremenchuk Mykhailo Ostohradskyi National University, Kremenchuk, Ukraine
  • О. V. Byalobrzhesky Kremenchuk Mykhailo Ostohradskyi National University, Kremenchuk, Ukraine

DOI:

https://doi.org/10.31498/2225-6733.32.2016.83937

Keywords:

system of traction power supply, recuperation, asynchronous machine, vector control system

Abstract

At braking the traction motors are transferred to generator mode and produce electrical energy which passes to the contact mains or storage device in the DC mains for further use. Such braking is called regenerative. The resulting electrical energy can be spent by trains in traction mode. Regenerative braking reduces the consumption of electric power for traction. In electric railways of our country more than 3% of the consumed electrical energy is given back to contact mains annually. As this takes place there arises the task to control the braking of the traction motors with minimal impact on electric power quality and maintaining proper braking performance. Based on the analysis of the characteristics of the brake traction of an electric locomotive with asynchronous electric machines the main braking modes have been chosen: at a constant sliding speed and the stator constant voltage; at constant braking power and the stator constant voltage; at a power value more than the nominal braking power; at a constant load torque; at a constant frequency of the stator. The vector control system with the formation of the reactive component of the stator current and the EMF regulator was chosen, basing on the working conditions characteristics in the electric braking mode (recuperation); namely, that the characteristics are defined by the laws regulating the frequency and voltage across the stator windings. This control system can fully reproduce any predetermined trajectory of traction and braking performance and adjust braking power. The offered system with recuperation can be used as a means of compensation in emergency situations with a power failure

Author Biographies

Yu. О. Slobodenyuk, Kremenchuk Mykhailo Ostohradskyi National University, Kremenchuk

Аспірант

О. V. Byalobrzhesky, Kremenchuk Mykhailo Ostohradskyi National University, Kremenchuk

Кандидат технічних наук, доцент

References

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How to Cite

Slobodenyuk Y. О., & Byalobrzhesky О. V. (2016). Influence of the braking power control of the traction asynchronous machine in the voltage vector control system under DC. Reporter of the Priazovskyi State Technical University. Section: Technical Sciences, (32), 180–187. https://doi.org/10.31498/2225-6733.32.2016.83937

Issue

No. 32 (2016): Reporter of the Priazovskyi State Technical University. Section: Technical sciences

Section

Electrical engineering and power engineering

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