Device for filtering voltage surges of traction electric motors, has operational amplifier having input at which signal from algebraic difference in voltage of traction motors and specified effective value of voltage of AC network is fed
	KUZNETSOV A I; TRUBITSYNA O A
	2024-08-20
专利权人	URALS LOCOMOTIVES LLC (URLO-Non-standard)
申请日期	2024-08-20
专利号	RU230799-U1
成果简介	NOVELTY - The device has a choke (1) and a capacitor connected in an L-shaped circuit and connected to a current type switch (2), an alternating voltage rectifier (3), and a capacitor (5) on one side, and to a power circuit of an electric rolling stock on another side. The choke includes choke magnetization windings connected to operational amplifiers (10, 13), where a signal from algebraic difference between voltage of traction motors (14, 15) during regenerative braking in a DC contact network (9) and a specified nominal value of the voltage of the DC network is fed to input of the operational amplifier in the DC network. USE - Device for filtering voltage surges of traction electric motors of double-fed electric rolling stock during regenerative braking in a contact network. ADVANTAGE - The device reduces fluctuations of braking current of the traction electric motors, thus reducing voltage surges in the contact network. DESCRIPTION OF DRAWING(S) - The drawing shows a circuit diagram of a device for filtering voltage surges of traction electric motors of double-fed electric rolling stock. 1Choke 2Current type switch 3Alternating voltage rectifier 5Capacitor 9DC network 10, 13Operational amplifiers 14, 15Traction motors
IPC 分类号	B60L-009/14 ; H02M-001/14
国家	俄罗斯
专业领域	能源矿产
语种	英语
成果类型	专利
文献类型	科技成果
条目标识符	http://119.78.100.226:8889/handle/3KE4DYBR/15410
专题	中国科学院新疆生态与地理研究所
作者单位	URALS LOCOMOTIVES LLC (URLO-Non-standard)
推荐引用方式 GB/T 7714	KUZNETSOV A I,TRUBITSYNA O A. Device for filtering voltage surges of traction electric motors, has operational amplifier having input at which signal from algebraic difference in voltage of traction motors and specified effective value of voltage of AC network is fed. RU230799-U1[P]. 2024.

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