Apparatus for supplying power and medical device
US-2024266945-A1 · Aug 8, 2024 · US
Three-phase rectification module, the system thereof and harmonic suppression method
US8971068B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8971068-B2 |
| Application number | US-201213466739-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 8, 2012 |
| Priority date | Sep 29, 2011 |
| Publication date | Mar 3, 2015 |
| Grant date | Mar 3, 2015 |
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Abstract
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A three-phase rectification module, the system thereof and harmonic suppression method are provided. The module includes an LCL filter unit, a Vienna rectifier coupled to the LCL filter unit, and a rectifier control unit for controlling the power factor of the three-phase AC power source and the DC output voltage of the Vienna rectifier. A commutation diode is serially connected on the bridge-arm of each set of uni-directional rectification branches which are included in the Vienna rectifier, making it function as current uni-directionally. Herein, the power factor of the three-phase AC power source is matched with the parameters of the LCL filter unit, such that the absolute value of the phase difference between the AC input voltage and the current of the Vienna rectifier is close or equal to zero.
First claim
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The invention claimed is: 1. A three-phase rectification module connected with a three-phase AC power source, comprising: a Vienna rectifier comprising three sets of single phase rectification bridge-arms connected in parallel, wherein each set of the single phase rectification bridge-arm comprises at least one switch with a low switch frequency; three sets of LCL filter units, each set of the LCL filter unit comprising: a first inductor, a second inductor and a capacitive branc…
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- H02M1/126Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Cross-Sectional Technologies · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8971068B2 cover?
- A three-phase rectification module, the system thereof and harmonic suppression method are provided. The module includes an LCL filter unit, a Vienna rectifier coupled to the LCL filter unit, and a rectifier control unit for controlling the power factor of the three-phase AC power source and the DC output voltage of the Vienna rectifier. A commutation diode is serially connected on the bridge-a…
- Who is the assignee on this patent?
- Pu Boyu, Zhou Jinping, Zhang Yi, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification H02M1/126. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 03 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).