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Decentralization successive approximation power management method suitable for STC converter array

A successive approximation and decentralization technology, which is applied in the direction of DC power input conversion to DC power output, without intermediate conversion to AC conversion equipment, output power conversion device, etc., can solve the lack of decentralized control scheme and cannot be expanded to achieve Issues such as high power density power supply output, to achieve the effect of enhancing efficiency optimization, optimizing efficiency reduction, and enhancing scalability

Pending Publication Date: 2022-08-09
SOUTHEAST UNIV +1
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Problems solved by technology

Realize the function of independent voltage regulation and power distribution of a single STC module, and solve the technical problem that the existing STC module array lacks a decentralized control solution and cannot be expanded to achieve high power density power output

Method used

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  • Decentralization successive approximation power management method suitable for STC converter array
  • Decentralization successive approximation power management method suitable for STC converter array
  • Decentralization successive approximation power management method suitable for STC converter array

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Embodiment Construction

[0041] In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.

[0042] like figure 1 As shown, the decentralized successive approximation power management strategy proposed by the present invention is suitable for an STC array composed of M×N groups of STC modules. The STC array can be divided into three areas, namely the normal working area, the off-state working area, and the Turn on the work area. All STC modules in the normal working area are adaptively adjusted, all STC modules in the off-state working area are in the OFF state, and all the STC modules in the conducting working area are in the ON state.

[0043] like figur...

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Abstract

The invention discloses a decentralized successive approximation power management method suitable for an STC converter array, and belongs to the technical field of power generation, power transformation or power control management. Aiming at the defect that a single switched capacitor converter can only realize a fixed-proportion voltage transformation function during conventional work and cannot realize flexible voltage regulation like a switched inductor converter, the STC converter is modularized and arrayed, and the voltage regulation can be realized according to different levels of power output requirements or voltage requirements. And transversely or longitudinally adjusting the working phase number and stage number of the modularized converter, and gradually and approximatively adjusting the working state of the STC converter array until the output voltage is in the target interval. Aiming at the STC converter array, the decentralized successive approximation power management strategy provided by the invention can increase the working state of the unit converter and enhance the voltage regulation capability of the modularized STC converter array under the condition of not reducing the efficiency.

Description

technical field [0001] The invention belongs to the technical field of power generation, power transformation or power control management, in particular to a decentralized successive approximation power management method suitable for STC converter arrays. Background technique [0002] In modern power electronic technology, power miniaturization technology has gradually become a very important technology, with strategic and forward-looking significance. Power miniaturization refers to the reduction of the existing traditional power supply from the brick-like volume to the size of a conventional chip through high integration and packaging technology. Density output. Micro power supply will play an indispensable role in aviation, aerospace drones, robots and other fields that are sensitive to the size and weight of power supplies. [0003] Google Labs proposed a high-frequency switched-capacitor STC converter (Switched Tank Converter, switched resonant tank converter) and its...

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Application Information

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IPC IPC(8): H02M3/07H02M3/158H02M3/00H02M1/00
CPCH02M3/07H02M3/158H02M3/01H02M1/0095H02M1/0067H02M1/0074Y02B70/10
Inventor 孙伟锋王栋杨静王廷营周远航丁松刘琦钱钦松汪思群黄坤
Owner SOUTHEAST UNIV
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