The invention discloses a tidal current control device for a V/v traction substation of an electrified railway. The device consists of a static power adjuster, a TCR filter and an LC filter (FC), wherein the static power adjuster is mounted on the secondary side of the V/v traction substation, and a back-to-back structure is formed by the static power adjuster and a capacity on the public direct current side; the alternating current side of a current converter is connected to power supply arms on the secondary side of the traction substation respectively through a voltage drop transformer; an FC filter is connected to a phase a of the secondary side of the V/v traction substation, and the TCR filter is connected to a phase b of the secondary side of the V/v traction substation. All parameters are calculated by capacity optimization, so that the cost and the system harmonic absorption content can be reduced. A double-closed-loop controller is used for controlling the tidal current distribution of the two power supply arms, so that multi-mode tidal current control is realized; by matching of the V/v traction substation, the TCR filter, the FC filter and the static power adjuster, multi-mode tidal current double-closed-loop control on the traction substation of the electrified railway is realized; voltage fluctuation is suppressed, main harmonics are effectively shielded, and comprehensive negative sequence and reactive treatment is realized.
Tidal current control device for V/v traction substation of electrified railway
2015-04-08
Patent
Electronic Resource
English
IPC: | B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |
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