The invention provides an electrified railway in-phase power supply compensation device, which comprises a negative sequence compensator, a filtering system and a first single-phase transformer, wherein the negative sequence compensator comprises a three-phase transformer, two conversion circuits and a selector, the filtering system comprises two single-phase transformers, two active filters and apassive filter, the primary side of the three-phase transformer is connected with a power grid, the secondary side of the three-phase transformer is respectively connected with the first ends of thetwo conversion circuits, the second ends of the two conversion circuits are connected with the selector, the primary side of the first single-phase transformer is connected with the power grid, the secondary side of the first single-phase transformer is connected with a contact network, the two active filters are connected with the primary sides of the two single-phase transformers in a one-to-onecorrespondence manner, the first end of the passive filter is connected with the primary side of one single-phase transformer, the other end of the passive filter is grounded, and the secondary sidesof the two single-phase transformers are connected with the contact network. By applying the device, the electric energy quality problems of negative sequence, harmonic waves and the like caused by power supply of an electrified railway can be effectively solved, and the reliability of a power supply system of the electric locomotive is improved.
本发明提供了一种电气化铁路同相供电补偿装置,包括:负序补偿器、滤波系统和第一单相变压器;负序补偿器包括三相变压器、两个变换电路和选择器;滤波系统包括两个单相变压器、两个有源滤波器和无源滤波器;三相变压器的一次侧与电网连接二次侧分别与两个变换电路的第一端连接;两个变换电路的第二端均与选择器连接;第一单相变压器一次侧连接电网二次侧连接接触网;两个有源滤波器与两个单相变压器的一次侧一一对应连接;无源滤波器第一端连接其中一个单相变压器的一次侧另一端接地;两个单相变压器的二次侧与接触网连接。应用该装置,能够有效解决电气化铁路在进行供电时所带来的负序、谐波等电能质量问题,提高电力机车的供电系统的可靠性。
Electrified railway in-phase power supply compensation device
电气化铁路同相供电补偿装置
2020-09-25
Patent
Electronic Resource
Chinese
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES |
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