A valve capable of controlling magnetic flux

Abstract

The invention relates to a valve capable of controlling magnetic flux. The valve capable of controlling the magnetic flux comprises a valve sleeve, a valve seat and a valve core and is characterized in that the valve is in series connection inside a soft magnetism magnetic core of a magnetic element through the valve sleeve and the valve seat. A valve shaft of the valve core is perpendicular to the direction of main magnetic flux, controlled by the valve, of the magnetic core of the magnetic element. The valve core is composed of a butterfly-shaped valve plate which is insulated and diamagnetic and a soft magnetism valve plate clamp. The butterfly-shaped valve plate which is insulated and diamagnetic and the soft magnetism valve plate clamp can respectively conduct angular displacement and angular location continuously in the valve seat around the valve shaft. According to the valve capable of controlling the magnetic flux, an additional coil and an air gap are not arranged on the magnetic element, reluctance of the valve can be directly and continuously changed through change of an included angle of a normal vector of a plane of the butterfly-shaped plate which is insulated and diamagnetic in the valve core and the direction of the main magnetic flux of the magnetic core of the magnetic element and the valve capable of controlling the magnetic flux is in closing and opening states. Meanwhile, the shortages that a traditional adjustable magnetic element can not be continuously adjusted, is in need of an additional power electric device switch and a power converter, large in noise and the like are overcome.

Description

technical field [0001] The present invention relates to power electronics, electrical and power systems. The invention relates to a valve capable of controlling magnetic flux, which is suitable for the situation where it is required to continuously change the reluctance of the magnetic circuit or the state of the magnetic flux switch. Background technique [0002] Magnetic components are widely used in power electronics, electrical engineering, and power systems, such as passive filters in inverters, inductors in electrical engineering, and arc suppression coils in power systems. In practical applications, it is often necessary to change the size of the reluctance of the magnetic element, and sometimes even continuously and steplessly change the size of the reluctance under the condition of load. However, since there is currently no switch that can directly, continuously and widely adjust the size of the magnetic resistance, the main measures to adjust the magnetic circuit ...

AI Technical Summary

Problems solved by technology

However, since there is currently no switch that can directly, continuously and widely adjust the size of the magnetic resistance, the main measures to adjust the magnetic circuit and their shortcomings are as follows:

[0004] Disadvantages: Changing the number of turns of the actual operating coil of the magnetic component can adjust the inductance of the magnetic component, but it cannot be continuously adjusted steplessly, and an external switching electrical switch is required, and the cost of the electrical switch in the high-voltage and high-current circuit is very high

[0006] Disadvantage: After the iron core is saturated, the loss of the power inductive element will be increased, and the noise of the power inductive element will be increased

[0008] Disadvantages: Passive filters can only filter out harmonics of a specific order, and harmonics of the remaining orders will cause serious interference

[0010] Disadvantages: too complicated, too many hidden failure points

[0012] Disadvantages: It is difficult to accurately control the air gap of the iron core, the scale that can effectively adjust the air gap is very small, and continuous stepless adjustment is difficult to achieve, and the air gap of high-power magnetic components is accompanied by noise, vibration and electromagnetic interference

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