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Power distribution control method for low-voltage DC power distribution equipment and device thereof

A power distribution control and current technology, applied in the field of circuits, can solve problems such as electric shock and leakage safety accidents

Active Publication Date: 2019-02-26
GREE ELECTRIC APPLIANCES INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] With the development of society, there are more and more demands for power distribution in households, bus stops, landscape lights, fountains and other public places. Electric shock and leakage safety accidents in the process of using electricity will cause serious consequences, but in practical applications It has appeared many times, which puts forward an urgent need for safe electricity technology

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  • Power distribution control method for low-voltage DC power distribution equipment and device thereof
  • Power distribution control method for low-voltage DC power distribution equipment and device thereof
  • Power distribution control method for low-voltage DC power distribution equipment and device thereof

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Embodiment Construction

[0037] The technical solution of the present disclosure will be described in further detail below with reference to the drawings and embodiments.

[0038] In some embodiments, the solution of the present disclosure can be applied to a DC / DC isolation distribution box to separately monitor the primary circuit and the secondary circuit, and control the load carried on the secondary circuit. The distribution box can be a low-voltage DC 48V isolation distribution box to realize the conversion of input medium-voltage DC 400V to low-voltage safe DC 48V. Due to the use of an isolation transformer, it is ensured that the high voltage will not enter the output secondary, and the safety of the secondary power line is completely guaranteed. Electricity. The rated output power of the module is 480W, the rated output current is 10A, the rated power distribution distance is within 50 meters, and the maximum instantaneous output power is 1KW. Such equipment is widely used, and improving the...

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Abstract

The invention provides a power distribution control method for low-voltage DC power distribution equipment and a device thereof, wherein the method and the device relate to the technical field of a circuit. The power distribution method according to the invention comprises the steps of acquiring a voltage detection value and a current detection value; based on a voltage ideal value and a current ideal value, determining a voltage fluctuation state and a current fluctuation state; and on the condition that the voltage fluctuation state is falling and the current fluctuation state is overcurrent, determining line shortcircuit and switching-off a load. Through the method of the invention, the shortcircuit can be found in time by means of the change condition of the monitoring voltage and current and the load is switched off, thereby improving accuracy and timeliness in finding the shortcircuit and improving power distribution safety.

Description

technical field [0001] The disclosure relates to the field of circuit technology, in particular to a power distribution control method and device for low-voltage DC power distribution equipment. Background technique [0002] With the development of society, there are more and more demands for power distribution in households, bus stops, landscape lights, fountains and other public places. Electric shock and leakage safety accidents in the process of using electricity will cause serious consequences, but in practical applications It has appeared many times, which puts forward an urgent need for safe electricity technology. Contents of the invention [0003] It is an object of the present disclosure to improve the security of power distribution. [0004] According to one aspect of the present disclosure, a power distribution control method is proposed, including: acquiring voltage detection values ​​and current detection values; determining the voltage fluctuation state and...

Claims

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Application Information

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IPC IPC(8): H02H7/26H02H3/087H02H3/20H02H3/24H02H1/00
CPCH02H1/0007H02H3/087H02H3/202H02H3/207H02H3/243H02H7/268
Inventor 文武刘克勤吕鹏飞蒋世用赵志刚
Owner GREE ELECTRIC APPLIANCES INC
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