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A multi-bus high-voltage high-power power supply controller

A technology of power controller and high-power power supply, which is applied in current collectors, electric vehicles, electrical components, etc., and can solve the problems of low power density of PCU and large number of modules.

Active Publication Date: 2020-07-21
SHENZHEN AEROSPACE NEW POWER TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the efficiency of the SR shunt structure is high, the PCU using this system has low power density and a large number of modules

Method used

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  • A multi-bus high-voltage high-power power supply controller

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Embodiment Construction

[0012] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0013] The inventor found that the B3C topology in Patent Document 1 is very suitable for solving the problems mentioned in the background technology. One topology includes three ports, one end is connected to a solar cell array, one end is connected to a battery, and the other end is connected to a bus bar. That is to say, one module implements the functions of two or even three modules in the S3R+BCDR or S4R+BDR scheme under the SR architecture, which can achieve high power density.

[0014] Under the B3C topology, the maximum power can currently reach 21kW, so it can be considered that PCUs of N small power levels (such as 10kW or 20kW) can be interconnected to realize a solar power controller system that is 5-10 times larger than the existing power level, such as figure 1 shown.

[0015] Each PCU module is equipped with a load quota of a c...

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Abstract

The invention provides a multi-bus high-voltage and high-power power supply controller, which comprises N PCU modules and N-1 bidirectional DC-DC converters, wherein a three-port converter is adoptedby each PCU module, each first port is connected with one solar battery array, each second port is connected with corresponding batteries and each third port is connected with one bus. The batteries in each PCU module are connected with the batteries in the adjacent PCU module through the corresponding bidirectional DC-DC converter; and the bus in each PCU module is also connected with the bus inthe adjacent PCU module through the corresponding bidirectional DC-DC converter. A solar power supply controller system of which the power is 5-10 times greater than the current power level is achieved through interconnection of various PCU modules.

Description

technical field [0001] The invention belongs to the technical field of power supply controllers, and in particular relates to a high-voltage high-power power supply controller. Background technique [0002] For the high-power power controller PCU whose bus voltage is greater than 100V, if the SR structure of the shunt regulator is continued to be used, the design requirements of the solar cell array are higher, and the transient current that needs to be borne during the shunt is larger, which will affect the conduction of the power tube. The requirements for current flow and withstand voltage are higher. Although the efficiency of the SR shunt structure is high, the PCU using this system has low power density and a large number of modules. [0003] In Patent Document 1 (Chinese Patent Publication No.: CN104518672A), the inventor proposed a three-port converter with magnetic integration and current ripple cancellation (referred to as "B3C topology"), which uses magnetic inte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/34H02J7/00
Inventor 朱洪雨张艺刘青张博温
Owner SHENZHEN AEROSPACE NEW POWER TECH