Four-port converter with symmetrical bipolar output and control method

A bipolar, four-port technology, applied in the direction of output power conversion device, control/regulation system, DC power input conversion to DC power output, etc., can solve the problem of no isolation between input port and output port, low reliability, voltage Gain is limited and other problems, to achieve the effect of flexible voltage relationship, high reliability, and wide application range
CN112803777AInactive Publication Date: 2021-05-14SOUTHWEST JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTHWEST JIAOTONG UNIV
Publication Date
2021-05-14
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a four-port converter with symmetrical bipolar output and a control method. When the power of a first input source is greater than that of a load, the converter works in a single-input three-output mode, namely the first input source charges a second input source and supplies power to the load at the same time; and when the first input source power is lower than the load power, the first input source and the second input source simultaneously supply power to the load. The converter can output symmetrical and common-ground bipolar voltages at the same time, two power sources and a plurality of loads can be connected into a system at the same time through one converter, and energy management between the sources and the loads can be achieved through corresponding control.
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Description

technical field

[0001] The invention relates to the technical field of power electronics, in particular to a four-port converter with symmetrical bipolar output and a control method. Background technique

[0002] With the rapid development of today's society, the demand for energy is increasing day by day. As non-renewable energy, fossil energy is gradually facing exhaustion, and in the process of releasing energy, fossil energy will produce a large amount of carbon dioxide, sulfur dioxide and other gases, which aggravates the global greenhouse effect and environmental protection. pollute. For the sustainable development of human society, countries around the world have reached a consensus on developing renewable energy and gradually replacing fossil energy with limited resources and pollution to the environment. Compared with conventional energy sources such as coal, oil, and natural gas, the output power of new energy power generation equipment has the characteristics of ...

Claims

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