An Intelligent Power Supply Switching Method Considering Load Characteristics
A technology of load characteristics and intelligent power supply, applied in emergency power supply arrangements, emergency protection circuit devices for limiting overcurrent/overvoltage, electrical components, etc. , the calculation is accurate, and the effect of improving the efficiency of use
Active Publication Date: 2021-05-11
CHINA AEROSPACE TIMES ELECTRONICS CORP
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Problems solved by technology
[0004] The technical problem solved by the present invention is: to overcome the deficiencies of the prior art, to propose an intelligent power switching method considering load characteristics, and to judge whether to switch the current power supply to other power sources by dynamically calculating the current required by the current power supply in real time, Solved the problem that some power supplies in multiple power supply systems cannot withstand surge currents
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Embodiment Construction
[0029] The present invention will be further elaborated below in conjunction with embodiment.
[0030] The invention provides an intelligent power supply switching method considering the load characteristics, considering that the capacitive load will generate a surge current when it is turned on, and by adopting real-time dynamic calculation of multiple power supply systems when a single or multiple loads are turned on, the current The load current that the power supply needs to provide is compared with the load current that the current power supply can provide, and it is judged in real time whether it is necessary to switch to other power supplies to ensure the stable operation of multiple power supply systems and improve the efficiency of the priority power supply.
[0031] Such as figure 1 As mentioned above, the intelligent power switching method mainly includes the following steps:
[0032] Step 1. Establish a multi-channel load power supply system composed of the first ...
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The invention relates to an intelligent power supply switching method considering load characteristics, which belongs to the field of power supply system design; step 1, establishing a multi-path load power supply system composed of a first power supply, a second power supply and n loads; step 2, setting The transient current when each load is energized; the steady-state current after stable operation; step 3, set the state of each load connected to the first power supply in the initial state; set the state of the load that will be connected to the second power supply in the second stage; Step 4, measuring the maximum load current of the first power supply; calculating the load current required for all loads connected to the second power supply in the second stage; Step 5, judging the maximum load current z and the load current Q required for all loads; according to the judgment As a result, switch the second power supply or do not act; the present invention judges whether to switch the current power supply to another power supply by dynamically calculating the current required by the current power supply in real time, and solves the problem that some power supplies in the multiple power supply system cannot resist the surge current The problem.
Description
technical field [0001] The invention belongs to the system design field of power supply, and relates to an intelligent power switching method considering load characteristics. Background technique [0002] When multiple loads are turned on in a system powered by multiple power sources, some power supplies have the characteristics of being unable to carry the large load current when multiple loads are turned on simultaneously or sequentially due to volume limitations; when there are fewer loads in the working state, only A power supply with a smaller power supply capacity can supply power; and when more loads enter work, it needs to be replaced with a power supply with a larger output capacity. [0003] At present, there is no standard for whether the power supply needs to be replaced after the load is increased; in the prior art, only the calculation of the required power supply is performed by calculating the normal operating current of all loads to determine whether the po...
Claims
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IPC IPC(8): H02J9/06H02H9/02
CPCH02H9/02H02J9/06
Inventor 蔺思茹张靖娴
Owner CHINA AEROSPACE TIMES ELECTRONICS CORP