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Control system of Delta converter-based UPS (Uninterrupted Power Supply)

A power control and converter technology, which is applied in power network operating system integration, emergency power arrangement, information technology support system, etc., to achieve the effects of cost reduction, intelligent work, strong anti-interference and reliability

Inactive Publication Date: 2018-06-05
王明良
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the concepts of active power and reactive power that we usually use are all proposed on the basis of average values, which are only applicable to the range of sinusoidal quantities
The harmonics and reactive components of UPS power compensation based on Delta conversion are transient values, so when we use the previous definition to solve the problem of instantaneous power compensation, we will encounter various restrictions

Method used

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  • Control system of Delta converter-based UPS (Uninterrupted Power Supply)
  • Control system of Delta converter-based UPS (Uninterrupted Power Supply)
  • Control system of Delta converter-based UPS (Uninterrupted Power Supply)

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Embodiment Construction

[0017] The present invention will be further described below with reference to the drawings and embodiments.

[0018] Such as figure 1 , The main program mainly includes system initialization control, enabling peripheral clock, initializing GPIO port, clearing all interrupts, initializing PIE vector table, initializing all peripherals, initializing ADC, and enabling required interrupt signals. The interrupt program part mainly includes: sampling signal reading (important current signals take multiple sampling and averaging method); sampling signal A / D conversion, DC side voltage loop PI and PR adjustment, load current calculation; current loop PI Adjust; reverse A / D conversion; compare register amplitude and turn on interrupt to complete a cycle control.

[0019] Such as figure 2 , The control system adopts a floating-point digital signal processor TMS320F2833 5 introduced by TI Company as the control chip of the system. The power-on process of the system mainly coordinates the s...

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Abstract

The invention relates to a control system of a Delta converter-based UPS (Uninterrupted Power Supply) and belongs to the power supply control field. A new control method and topological structure areprovided for problems appearing in the work process of the system, and the instantaneous reactive power compensation effect and direct-current side energy balance control effect of a Delta converter are realized. The Delta conversion-based UPS (Uninterrupted Power Supply) has an uninterrupted power supply function and a power quality compensation function and can provide stable and efficient powerfor a load. The Delta conversion type UPS can act as a power quality compensator so as to compensate harmonic components, unbalanced components and reactive components contained in a power grid and the load. When the power outage of the power grid occurs, a main converter can achieve uninterrupted switching and full power operation of the power supply of a battery and the power supply of the power grid. The control system has the advantages of small power loss and high work efficiency.

Description

Technical field [0001] The invention relates to a UPS power supply control system based on a Delta converter, which is suitable for the power control field. Background technique [0002] UPS power supply is the uninterruptible power supply "Uninterruptible Power Supply", which enables users to provide short-term power supply to the load when the power grid fails or fails, so as to ensure that the load will not lose data due to instantaneous power failure. [0003] After decades of development, in the general atmosphere of developing clean energy and creating a conservation-minded society, UPS power supplies play an important role from cell phone batteries and household appliances to building power supply and supercomputer power supply systems. However, with the popularity of UPS power supply, the disadvantages of traditional UPS power supply with high harmonic content, low conversion efficiency and large line loss, it is increasingly unable to meet the rapid development of advanced...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J9/06
CPCH02J9/061H02J9/068Y02B70/30Y04S20/20
Inventor 王明良
Owner 王明良
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