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DC load automatic loading device

A DC load and automatic loading technology, applied in the field of power equipment, can solve the problems of bulky, large active power loss, easy aging and burning.

Inactive Publication Date: 2015-12-23
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Due to the use of energy-consuming loads for testing, the loss of active power is too large, a large amount of electric energy is consumed in vain, and the resistance consumes electric energy to generate heat, which requires additional cooling equipment, such as air conditioners, fans, etc., which increases the cost.
There are steps to adjust, the static load generally has a fixed resistance value or load characteristic curve, the form is single, and it cannot simulate the actual complex load situation
The test accuracy is low, the volume is bulky, takes up a lot of space, and is easy to age and burn out

Method used

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Embodiment Construction

[0034] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0035] figure 1 It is a structural schematic diagram of an automatic loading device for a DC load in an embodiment of the present invention; refer to figure 1 , the device includes: a sequentially connected controller and a load array, wherein the load array includes several load circuits for simulating different resistance values;

[0036] The controller is configured to determine a load circuit to be turned on in the load array according to a required resistance value, and send a driving instruction for turning on the load circuit to be turned on to the load array;

[0037] It should be noted that the controller can be single-chip microcontroller C805IF020, which is a ...

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Abstract

The invention discloses a DC load automatic loading device relating to the technical field of electrical equipment. In the device, according to needed resistance, a controller determines a to-be-conducted load circuit in a load array and sends a driving instruction, which is used for conduct the to-be-conducted load circuit, to the load array. After receiving the driving instruction, the load array conducts the to-be-conducted load circuit to load a DC load of the needed resistance. The device reduces the loss and cost of electric energy, can simulate complex loading situations, is improved in testing precision, and has a small size and a long service life.

Description

technical field [0001] The invention relates to the technical field of electric equipment, in particular to an automatic loading device for DC loads. Background technique [0002] With the development of economy and society, power supply is widely used in all aspects of people's production and life, and the quality of power supply will directly affect people's production and life safety. Therefore, the power supply needs to be tested. Traditionally, static resistors such as fixed resistors, sliding rheostats, and resistance boxes are usually used as loads. This method has disadvantages such as high energy consumption, large volume, and inability to flexibly simulate the characteristics of actual loads. In particular, the popularization and application of electric vehicles has put forward many requirements for the testing of DC power supplies. DC power supplies usually need to test their output voltage stabilization accuracy, ripple coefficient, current stabilization accurac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/40
Inventor 高博罗亚桥谢毓广郑国强桂国亮徐斌王小明丁津津计长安郭力汪玉赵龙何晓伟俞斌李远松王凤霞
Owner STATE GRID CORP OF CHINA
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