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A direct-mounted large-capacity power quality comprehensive control device for electrified railways

A technology for electrified railways and power quality, applied to circuit devices, electrical components, harmonic reduction devices, etc., to achieve the effects of high-voltage direct-mounted large-capacity output, reduced conduction electromagnetic interference, and improved operational reliability

Active Publication Date: 2016-08-03
ZHUZHOU NAT ENG RES CENT OF CONVERTERS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The technical problem to be solved by the present invention is: aiming at the technical problems existing in the prior art, the present invention provides a direct-mounted large-capacity electrified railway with simple structure, low cost, good reliability, and capable of solving various power quality problems. Power quality comprehensive control device

Method used

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  • A direct-mounted large-capacity power quality comprehensive control device for electrified railways
  • A direct-mounted large-capacity power quality comprehensive control device for electrified railways
  • A direct-mounted large-capacity power quality comprehensive control device for electrified railways

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Embodiment Construction

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] Such as figure 1 As shown, the direct-mounted large-capacity power quality comprehensive treatment device for electrified railways of the present invention includes an active compensation system and a passive compensation system; wherein, the passive compensation system includes two passive high-pass filters for filtering In addition to high-order harmonics (above the 13th order, not including the 13th order), and provide some capacitive reactive power. The active compensation system is composed of multiple compensation units connected in parallel. To simplify the analysis, this embodiment takes only two parallel active compensation units as an example, that is, active compensation unit A and active compensation unit B. The topological structure of active compensation unit A and active compensation unit B is exactly the same, ...

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Abstract

The invention discloses a direct hanging type large-capacity electric energy quality comprehensive managing device for an electrified railway. The direct hanging type large-capacity electric energy quality comprehensive managing device comprises an active compensation system and a passive compensation system. The passive compensation system comprises two passive high-pass filters for filtering higher harmonics out and providing partial capacitive reactive power, and the active compensation system is formed by connecting a plurality of active compensation units in parallel. The direct hanging type large-capacity electric energy quality comprehensive managing device has the advantages of being simple in structure, low in cost, good in reliability, capable of solving various electric energy quality problems and the like.

Description

technical field [0001] The invention mainly relates to the field of traction power supply systems for electrified railways, in particular to a direct-mounted large-capacity power quality comprehensive control device suitable for electrified railways. Background technique [0002] In view of the advantages of fast speed, large transportation volume and outstanding comprehensive benefits, electrified railway is an inevitable trend of railway development. The development of electrified railway puts forward higher requirements for AC traction power supply system. Due to the particularity of the locomotive load, there are a series of power quality problems in the traction power supply system. Traction power supply system of electrified railway is different from general three-phase power system. For the three-phase power system supplying power to the traction substation, the traction load has the characteristics of nonlinearity, asymmetry and volatility. Therefore, the traction...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/00H02J3/01H02J3/18
CPCY02E40/30Y02E40/40
Inventor 曹洋仇乐兵唐建宇徐万良彭勃林丽周方圆谭胜武陈孟君田华贵黄超李保国刘永丽吕顺凯张杰
Owner ZHUZHOU NAT ENG RES CENT OF CONVERTERS
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