Common-mode filter device and system

A common-mode filter and source filter technology, applied in output power conversion devices, inductors, broadband transformers, etc., can solve the problems of increasing installation costs and reducing power conversion efficiency of transformers, and achieve the effect of reducing costs.
CN103477544AActive Publication Date: 2013-12-25KERRYJ INVESTMENT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
KERRYJ INVESTMENT
Publication Date
2013-12-25

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Abstract

A common-mode filter device and system for regulating aspects of power conversion by a power converter from external source such as solar panels to another external circuit wherein the common-mode filter device substantially attenuates common-mode voltage at the switching frequency plus harmonics of the power converter. The power converter can be single phase, but is preferably a multiple phase.
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Description

Technical field

[0001] The present invention relates to a device and system for a power converter and inverter system using an active common mode filter. Specifically, the present invention relates to a common mode filter device and system for adjusting various aspects of power conversion from an external source such as a solar panel to a public grid, but the present invention is not limited thereto. Background technique

[0002] Power converters are used to transfer power between circuits. Each circuit is connected to a different power port of the power converter. Each power port has at least two power conductors. The power port voltage is characterized by differential mode (DM) voltage and common mode (CM) voltage. DM voltage is the potential difference between the pair of power conductors. The CM voltage is the average potential difference between all power conductors and a reference potential such as ground (earth). Similarly, the power port current is characterized by D...

Claims

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