Rotating speed control device for turbogenerator based on magnetorheological material and control method

A speed control, turbine-type technology, applied in electromechanical devices, control generators, control systems, etc., can solve problems such as adverse effects of speed and damage to turbines, and achieve the effect of ensuring structural mechanics requirements, reducing density loss, and improving magnetic field strength.

Inactive Publication Date: 2017-10-03
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the low-speed section, adjusting the airflow often has an adverse effect on the speed, and in the high-speed section, the method of friction braking may damage the turbine.

Method used

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  • Rotating speed control device for turbogenerator based on magnetorheological material and control method
  • Rotating speed control device for turbogenerator based on magnetorheological material and control method

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Embodiment 1

[0023]The magnetorheological material-based turbine generator speed control device disclosed in this embodiment includes an upper cover 1 , an inner cylinder 2 , a casing 3 , a bottom 4 , an excitation coil 5 and a magnetorheological material 6 . The upper cover 1, the inner cylinder 2, the outer shell 3, and the bottom 4 form a base, and the inner cylinder 2, the outer shell 3, and the bottom 4 are processed separately or integrally. The materials of the upper cover 1, the shell 3, and the bottom 4 are all metal magnetically conductive materials, which have the following two advantages: 1. It is beneficial for the magnetic force lines to pass through the magnetorheological material 6 in the working chamber more concentratedly, forming a closed magnetic force line , so as to reduce the density loss of the magnetic lines of force and increase the magnetic field strength in the magnetorheological material 6; 2. It can ensure the structural mechanical requirements of the speed con...

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PUM

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Abstract

The invention discloses a rotating speed control device for a turbogenerator based on a magnetorheological material and a control method and belongs to the field of rotating speed control of fuze turbogenerators. The rotating speed control device for the turbogenerator based on the magnetorheological material comprises an upper cover, an internal cylinder, a shell, a base, a magnet exciting coil and the magnetorheological material. A pedestal is formed by the upper cover, the internal cylinder, the shell and the base. The internal cylinder is filled with the magnetorheological material which is used as an actuating element for rotating speed control. The upper cover, the shell and the base are all made of metal magnetic conductive materials. The internal cylinder is made of a non-magnetic conductive material. The invention also discloses a rotating speed control method based on negative voltage feedback for controlling the rotating speed control device for the turbogenerator based on the magnetorheological material. According to the device and the method, the rotating speed control of the fuze turbogenerator can be realized, and the device and the method have the following advantages that (1) the influence of the rotating speed control device on the rotating speed of the turbogenerator at a low wind speed section is reduced; and (2) the stability of the structure of the turbogenerator at a high wind speed section is improved.

Description

technical field [0001] The invention belongs to the field of speed control of a fuze turbine generator, and in particular relates to a speed control device using a magnetorheological material as a key actuator for speed control, and a control method for controlling the speed control device. Background technique [0002] From the perspective of modern warfare, weapon systems are developing towards precision guidance, so the fuze power supply of precision-guided bombs must not only provide electrical energy for the control circuit, but also provide electrical energy for correcting the bomb's flight direction and flight attitude. The turbine generator is a power source that uses ballistic air pressure as the driving force. The main part includes a turbine, a rotating shaft, a rotor and a stator. Because of its high power density, small axial size, and good power generation performance, it has a good application prospect in the field of fuze power supplies. For shells with a la...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K11/21H02K7/10H02P9/00
CPCH02K11/21H02K7/10H02P9/006
Inventor 代俊常辉赵瑞解赛鹏黄珏张美云隋丽石庚辰
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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