中压柔性直流铁路牵引供电系统运行域模型

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Abstract

The medium-voltage flexible direct current railway traction power system has been widely concerned because it can solve the problems of neutral section and power quality in existing electrified railway. In order to evaluate the power supply security of the system by monitoring the least variables, this paper proposes the dispatchable region model for the medium-voltage flexible direct current railway traction power system. Firstly, the structure of the medium-voltage flexible direct current railway traction power system is introduced. Secondly, the operating point vector, equality constraints and inequality constraints of the system are established in turn to form the dispatchable region model for the medium-voltage flexible direct current railway traction power system, and the analytical solving method of the model is given. Finally, the analytical dispatchable region expressions between traction currents and running positions of locomotives are obtained by solving a numerical example, and the evaluation of power supply security is realized for the medium-voltage flexible direct current railway traction power system. This paper provides a reference for secure operation and dispatching of the medium-voltage flexible direct current railway traction power system.

Key words： flexible direct current railway traction power system dispatchable region traction current analytical expression

Received: 31 May 2022

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Cite this article:

MO Shaoxiong. Dispatchable region model for medium-voltage flexible direct current railway traction power system[J]. Electrical Engineering, 2022, 23(10): 41-50.

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http://dqjs.cesmedia.cn/EN/Y2022/V23/I10/41

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