Low-voltage and long-distance power transmission system

A power transmission system and long-distance technology, applied in the field of power transmission, can solve the problems that affect the daily electricity demand of the electric machinery masses, large line loss, and low voltage at the user's power terminal, so as to reduce loss, stabilize voltage, and meet power voltage effect of demand

Active Publication Date: 2016-07-20
潍坊蓝岭通信有限公司
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Problems solved by technology

[0004] The purpose of the present invention is to provide a low-voltage long-distance power transmission system, aiming at solving the problem of low-voltage power supply lines with a power supply distance of more than 500 meters in the prior art. Electric machinery, farming, well irrigation and the daily electricity demand of the masses

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  • Low-voltage and long-distance power transmission system

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Embodiment Construction

[0047] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0048] like Figure 1 to Figure 4 As shown, the low-voltage long-distance power transmission system includes a first voltage controller 1 for converting the input voltage into the voltage required by the low-voltage transmission line 2 and for converting the voltage required by the low-voltage transmission line 2 into 220V or / and 380V The second voltage controller 3, the output end of the first voltage controller 1 is connected with the input end of the second voltage controller 3 through a low-voltage transmission line;

[0049] When the voltage at the output terminal of the second voltage contro...

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Abstract

The invention relates to the technical field of power transmission and provides a low-voltage and long-distance power transmission system. The low-voltage and long-distance power transmission system comprises a first voltage controller for converting input voltage into voltage needed by a low-voltage power transmission line, and a second voltage controller for converting the voltage needed by the low-voltage power transmission line into 220V or / and 380V; an output end of the first voltage controller is connected with an input end of the second voltage controller through the low-voltage power transmission line; when the voltage of the output end of the second voltage controller is single-phase 380V, the output end of the second voltage controller is connected with a single-phase to three-phase 380V voltage converter, so that the stabilization of the voltage on the low-voltage power transmission line is realized, the transmission distance of the voltage of a 380V / 220V low-voltage power grid is prolonged, the loss of the power transmission line is reduced and the power utilization voltage requirements of users are met.

Description

technical field [0001] The invention belongs to the technical field of power transmission, in particular to a low-voltage long-distance power transmission system. Background technique [0002] Voltage quality has a direct impact on the stability of the power grid, the safe operation of power equipment, line loss, and the electricity consumption of urban and rural residents. With the rapid development of the economy, rural family residents purchase a large number of household appliances and electric machinery such as electric drainage and irrigation wells, resulting in a sharp increase in agricultural electricity load. [0003] Due to the vast area, low population density, relatively scattered power load and low capacity in rural areas and remote poverty-stricken areas in my country, there are a large number of low-voltage power supply lines with a power supply range of more than 500 meters. According to the current power supply standard, single-phase 220V is used Or three-ph...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J3/12
CPCH02J3/00H02J3/12
Inventor 梁晓平李媛媛郎志峰彭立岩李建新
Owner 潍坊蓝岭通信有限公司
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