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A distributed generation power supply system and control method for at traction network

A technology of distributed power generation and power supply system, applied in power lines, vehicle components, transportation and packaging, etc., can solve problems such as waste and excessively long power lines, and achieve the goal of improving utilization rate, extending power supply distance, and improving the utilization of regenerative electric energy. Effect

Active Publication Date: 2021-11-30
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the linear distribution of the railway, it is bound to cause the power supply line to be too long and wasteful

Method used

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  • A distributed generation power supply system and control method for at traction network
  • A distributed generation power supply system and control method for at traction network
  • A distributed generation power supply system and control method for at traction network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as figure 1 As shown, this embodiment provides an AT traction network distributed power supply system, including the AT traction network and the same-phase traction substation TS connected to the AT traction network, the traction bus TBT of the same-phase traction substation TS is connected to the The catenary T line of the AT traction network is connected, and the traction bus TBF of the traction substation TS of the same phase is connected with the catenary F line of the AT traction network through the feeder FN. The traction bus TBT is equipped with a voltage transformer PTT, and the traction bus TBF is set to the voltage The transformer PTF, the feeder FP is equipped with a current transformer CT, the AT traction network is equipped with an AT switching station, the neutral point of the AT switching station is connected to the rail R, and also includes a power generation device arranged along the railway direction, so The above-mentioned power generation device...

Embodiment 2

[0048] Such as image 3 As shown, this embodiment provides a control method based on the AT traction network distributed power supply system provided in Embodiment 1, which is applied to the central coordination controller CCC and realized through the following technical solutions:

[0049] The methods include:

[0050] The central coordinating controller CCC according to the installed capacities S1, S2, S1, S2, ..., Si, ..., Sn calculate the total installed capacity S of the power generating device, where, ;

[0051] The central coordinating controller CCC measures the real-time total power of the traction network with n power generating devices through the voltage transformer PT and the current transformer CT, and distinguishes the power consumption state and the power generation state;

[0052]Trains running on the line have three operating conditions: traction, regeneration and coasting. Traction is equivalent to electricity consumption, regeneration is equivalent to ...

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Abstract

The invention provides an AT traction network distributed power supply system and a control method, belonging to the technical field of electrified railway traction power supply. The traction side of the same-phase traction substation is connected to the traction busbar, and the traction busbar is connected to the AT traction network through the feeder. The central coordination controller controls the operation mode of the power generation device, and controls the power generation and reactive power distribution; it is mainly used to further extend the power supply distance of the same-phase AT traction network, as well as the distributed access and nearby consumption of new energy, so as to promote the green development of the railway system .

Description

technical field [0001] The invention relates to the technical field of AC electrified railway power supply, and relates to an AT traction network distributed power supply system and a control method. Background technique [0002] There have been a large number of successful application cases of new energy and renewable energy power generation in the power system, and the railway system has also been explored. Promote and apply new energy and renewable energy power generation along the railway line according to the principles of adapting measures to local conditions and multi-energy complementarity. [0003] Electric phase separation in the traction power supply system forms a non-electric area, causing power supply interruption, which is a bottleneck restricting the development of electrified railways. The implementation of long-distance in-phase power supply can reduce or even cancel the electrical phase separation and eliminate the non-electric area. Especially for diffic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60M3/00
CPCB60M3/00
Inventor 李群湛黄小红马庆安解绍锋吴波
Owner SOUTHWEST JIAOTONG UNIV
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