Traction power supply network terminal voltage stabilizing device and traction power supply network stabilizing system
A technology of traction power supply network and stabilizing device, which is applied in the direction of AC network voltage adjustment, power supply line, transportation and packaging, etc., can solve problems such as instability of terminal network voltage and achieve the effect of improving stability
Inactive Publication Date: 2021-01-05
CHINA SHENHUA ENERGY CO LTD
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[0004] Based on this, it is necessary to provide a traction power supply network terminal voltage stabilization device and a traction power supply network stabilization system for the instability of the terminal network voltage in the existing power supply system
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[0044]In order to make the above objectives, features and advantages of the present application more obvious and understandable, the specific implementation of the present application will be described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are explained in order to fully understand this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of this application. Therefore, this application is not limited by the specific implementation disclosed below.
[0045]The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to separate the described objects and do not have any sequence or technical meaning. The terms "connection" and "connection" in this application, unless otherwise specified, include direct and indirect con...
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The invention provides a traction power supply network terminal voltage stabilizing device and a traction power supply network stabilizing system. The traction power supply network tail end voltage stabilizing device comprises a voltage detection circuit, a control circuit and an alternating current power circuit, wherein the voltage detection circuit is used for detecting power supply voltage ata tail end of an uplink or downlink bus of the power supply network, the control circuit is electrically connected with the voltage detection circuit; the control circuit is used for receiving the power supply voltage; the alternating current power circuit is electrically connected with the control circuit; and the AC power circuit is used for outputting reactive power to a tail end of an uplink or downlink bus of the power supply network. And the control circuit is also used for controlling the reactive power outputted by the AC power circuit based on the power supply voltage and the target voltage, so the power supply voltage is stabilized at the target voltage.
Description
Technical field[0001]This application relates to the technical field of railway power supply, in particular to a traction power supply network terminal voltage stabilization device and a traction power supply network stabilization system.Background technique[0002]With the continuous development of electrified railways, the application of long-distance power supply for power supply lines has become more and more extensive. But it brings a series of problems. For example, in the long-distance power supply system, the inductive reactive power loss of the line during heavy load period increases and the terminal network voltage decreases, and the capacitive reactive power of the line during light load period causes the terminal network voltage to increase. .[0003]Aiming at the problem of instability of the terminal voltage in the long-distance power supply system, the current method is to increase the power supply capacity by expanding the capacity of the transformer, increasing the diam...
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Login to View More IPC IPC(8): H02J3/16B60M3/02
CPCH02J3/16B60M3/02Y02E40/30
Inventor 周少飞王碰雄高飞
Owner CHINA SHENHUA ENERGY CO LTD