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Power flow control device and control method for run-through power supply system converter type traction substation

A technology for traction substations and power flow control, applied to AC networks with the same frequency from different sources, etc., can solve problems such as power flow control, and achieve the effects of sensitive control methods, reliable methods, and a wide range of applications

Active Publication Date: 2016-07-20
SOUTHWEST JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a power flow control device for converter type traction substations in the through power supply system, which can effectively solve the equipment problem of power flow control for converter type traction substations in the through power supply system

Method used

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  • Power flow control device and control method for run-through power supply system converter type traction substation
  • Power flow control device and control method for run-through power supply system converter type traction substation

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Embodiment

[0023]figure 1 Shown is a schematic diagram of the configuration structure of the through power supply system and the power flow control device of the converter type traction substation according to the embodiment of the present invention: the through power supply system is composed of a traction substation and a traction network OCS, etc., and the primary side of the traction substation is connected The three-phase power grid ABC, the secondary side is connected to the traction network OCS through the traction busbar TB and the traction feeder F, and the traction network OCS between the traction substations is connected to implement the same-phase continuous power supply for the electrified railway; the continuous power supply system includes a transformer type The traction substation is powered by traction transformer TT or combined in-phase power supply, which is recorded as substation TS, and its capacity is set as S 0 , and there are n converter-type traction substations, ...

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Abstract

The invention provides a power flow control device and method for a run-through power supply system converter type traction substation, and relates to the field of power supply of an AC electrical railway. The power flow control device comprises a transformer type traction substation and an electrical railway run-through power supply system, wherein the electrical railway run-through power supply system comprises a plurality of converter type traction substations, wherein the input end of the control device is connected with a traction feed current transformer and a traction bus voltage transformer of the converter type substation, and is connected with a traction feed current transformer and a traction bus voltage transformer of the transformer type substation through an optical fiber, and the output end of the control device is connected with an AC-DC-AC converter control end of the converter type substation. The control method comprises the following step of adjusting the power of the converter type substation within an allowable voltage range of a traction bus by taking the current, the voltage and the power data of the transformer type substation as references so that the converter type substation and the transformer type substation approach the target of a train load on a traction network according to capacity proportion distribution. The control device is mainly used for the electrical railway run-through power supply system.

Description

technical field [0001] The invention relates to the field of AC electrified railway power supply, in particular to the power flow regulation technology of a converter type traction substation in a through power supply system. Background technique [0002] Electrified railways generally adopt the single-phase power frequency AC system powered by the public power system. In order to make the single-phase traction load be distributed as balanced as possible in the three-phase power system, the electrified railway often adopts the scheme of rotating phase sequence and separate phase and partition power supply. The adjacent power supply areas at the phase-splitting partitions are separated by phase-splitting insulators to form electrical phase-splitting, referred to as phase-splitting. The traditional way for an electric locomotive to pass through the phase separation is to manually pass the phase separation, mainly relying on the driver to manually degrade, turn off the auxiliar...

Claims

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Application Information

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IPC IPC(8): H02J3/06
CPCH02J3/06
Inventor 李群湛郭锴赵艺解绍锋黄小红舒泽亮
Owner SOUTHWEST JIAOTONG UNIV
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