Self-current-sharing method based on integrated parallel power supply monitoring system

A power supply monitoring and self-current sharing technology, applied in information technology support systems, electrical components, circuit devices, etc., can solve the problems of high material cost and R&D cost, difficulty in ensuring the reliability of integrated power supply, signal error, etc.

Pending Publication Date: 2022-01-21
江苏中凌高科技股份有限公司
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Some of the current sharing methods described above require the cooperation of cooperating machines: such as the master-slave and maximum current sharing control methods, and some require external equipment for current sharing control, such as an external current sharing controller. The material cost Compared with the R&D cost, it is relatively high, and non-system custom current sharing control may lead to the current sharing ...

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  • Self-current-sharing method based on integrated parallel power supply monitoring system
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  • Self-current-sharing method based on integrated parallel power supply monitoring system

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Embodiment Construction

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0032] The present invention as Figure 1-2 As shown, a self-leveling method based on an integrated parallel power supply monitoring system includes the following steps: the parallel power supply monitoring system includes a number of parallel power supply modules, and each of the power supply modules is respectively provided with a CPU processor; S1: Recommend the main module After the parallel module is turned on, the CAN bus communication connection is carried out between the parallel power supply modules (16 parallel power supply mod...

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Abstract

The invention discloses a self-current-sharing method based on an integrated parallel power supply monitoring system. According to the self-current-sharing method based on the integrated parallel power supply monitoring system, current-sharing control of the power supply modules is efficiently achieved, and signal errors are reduced. The method comprises the following steps: after a parallel module is started, CAN bus communication connection is carried out between parallel power supply modules, a CPU (Central Processing Unit) calculates a main module and obtains the number of modules connected in parallel on a current bus, and the number is N; the output current I of all the parallel modules is collected through the CPU; each power supply module compares an ideal current value with the output current I of the parallel modules, and calculates and adjusts an output PWM wave through a PID algorithm in a CPU processor, thereby controlling fine tuning of an output voltage, increasing or reducing an output current, and achieving the purpose of current sharing. The method has the characteristics of efficiently realizing current-sharing control of the power supply module, reducing signal errors and the like.

Description

technical field [0001] The invention relates to an integrated power supply system, in particular to a self-equalizing method based on an integrated parallel power supply monitoring system. Background technique [0002] The integrated power supply system, as the main power supply equipment for the station, its own working performance, power supply quality, loss and other factors are all used as inspection indicators for the maturity of the system. In the current substation, a series power supply is usually used to increase the terminal voltage of the battery pack to 220V to connect to the DC bus, and act as a backup power supply to connect to the normal working power supply system when the AC power failure occurs. The invention relates to a parallel power supply, the essence of which is an integrated power supply system in which a 12V battery pack is mounted on a parallel module, and 16 modules are connected in parallel to the system to realize power supply. [0003] The par...

Claims

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Application Information

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IPC IPC(8): H02J13/00
CPCH02J13/00016Y02B90/20Y04S40/124
Inventor 潘磊黄国鑫谢斌
Owner 江苏中凌高科技股份有限公司
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