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Power converter compatible with single-phase alternating current and three-phase alternating current, and control method thereof

A technology of power converter and three-phase alternating current, which is applied in the field of electric vehicles, can solve problems such as inconsistency and inconvenient charging, and achieve the effect of improving the convenience of charging

Active Publication Date: 2021-02-26
HANGZHOU EV TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the AC power provided by the current charging device is not uniform, some are single-phase AC power, and some are three-phase AC power, which causes some inconvenience to charging.

Method used

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  • Power converter compatible with single-phase alternating current and three-phase alternating current, and control method thereof
  • Power converter compatible with single-phase alternating current and three-phase alternating current, and control method thereof
  • Power converter compatible with single-phase alternating current and three-phase alternating current, and control method thereof

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Embodiment Construction

[0029]The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.

[0030] It should be understood that the terms "first", "second", "third", "fourth", "fifth" and "sixth" in the claims, description and drawings of the present application are used to distinguish Different objects, not used to describe a specific order. The terms "comprising" and "comprises" used in the specification and claims of this application indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude one or more ...

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Abstract

The invention provides a power converter compatible with single-phase alternating current and three-phase alternating current, and a control method thereof. The power converter comprises a switch unit, at least one EMI filter, an alternating current detection circuit and a three-phase PFC inductor group, wherein one end of the switch unit is connected with a single-phase or three-phase alternatingcurrent power supply; when the alternating current detection circuit detects that the alternating current power supply is a single-phase alternating current power supply or a three-phase alternatingcurrent power supply, a switch of the switch unit is controlled to be switched on or off, so the alternating current power supply is connected with the three-phase PFC inductor group through the switch unit; two ends of a PFC inductor in the three-phase PFC inductor group are connected with a switch in parallel; and the EMI filter is arranged between and connected with the alternating current power supply and the switch unit or the switch unit and the three-phase PFC inductor group.

Description

technical field [0001] The application relates to the technical field of electric vehicles, in particular to a power converter compatible with single-phase alternating current and three-phase alternating current and a control method thereof. Background technique [0002] Electric vehicles, with their outstanding features of high efficiency, energy saving, low noise and zero emission, have incomparable advantages in energy saving and environmental protection. In recent years, major progress has been made in core key technologies such as power batteries, motors, control systems, and on-board chargers for electric vehicles around the world in recent years. Product safety, reliability, and service life have been significantly improved, and costs have been controlled to a certain extent. Automobiles and pure electric vehicles are gradually entering the stage of practicalization and industrialization, and electric vehicles will become the strategic direction of the development of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/44H02M1/42H02M7/12B60L53/22
CPCH02M1/44H02M1/4208H02M1/4233H02M7/12B60L53/22H02J2207/20Y02T10/70Y02T10/72Y02T10/7072Y02T90/14
Inventor 平定钢陈素斌刘钢
Owner HANGZHOU EV TECH CO LTD
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