DEVELOPMENT OF A METHOD FOR SPACED CONTROL OF TRANSISTOR TRACTION CONVERTERS OF AN ELECTRIC LOCOMOTIVE IN THE FIRST RECTIFIED VOLTAGE REGULATION ZONE
Abstract and keywords
Abstract (English):
Objective: to develop a way to improve the quality of electricity on the current collector of an alternating current electric locomotive when it is operating in the first control zone with transistor traction converters. Methods: the electromagnetic processes on the current collector and in the power circuit of an alternating current electric locomotive with thyristor and transistor traction converters are analyzed, their comparison is made according to the criterion of distortion of the quality of electricity on the current collector. The electromagnetic processes on the current collector and in the power circuit of an alternating current electric locomotive with transistor traction converters operating according to the proposed method — spaced control are analyzed. Results: the causes of voltage and current fluctuations on the current collector of an alternating current electric locomotive with a transistor traction converter in the first rectified voltage regulation zone have been identified. A method of spaced control of transistor traction converters has been developed, which allows reducing the total coefficient of harmonic components of current and voltage on the current collector of an alternating current electric locomotive. Practical importance: the developed method of spaced control can be used on AC electric locomotives after their conversion to transistor traction converters, as well as in the design of new electric locomotives.

Keywords:
alternating current electric locomotive, rectifier-inverter converter, collector electric drive, IGBT-transistors, power quality, energy efficiency
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References

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