Electric energy recycling type switched reluctance motor

Abstract

The invention provides an electric energy recycling type switched reluctance motor, and belongs to the technical field of electric power. The design points of the patent are as follows: firstly, it isproposed that a motor rotor is made of ferromagnetic substance such as electrical steel and the like, and the rotor is rotated by an attraction force generated by an electromagnetic coil of a motor stator. Secondly, by mounting a coil on the rotor, electrification can be performed as needed to enhance the strength of a magnetic field so as to solve the problem of a small torque when the switchedreluctance motor is started. Thirdly, the motor discharges an armature coil by means of pulse current to drive the motor to rotate, a part of energy of the magnetic field generated by the motor statoris recycled by using a special circuit, and a coil is also installed on the rotor to recycle the energy of the magnetic field so as to solve the problem of electric energy recycling of the motor, thereby improving the efficiency of the motor. Compared with the existing switched reluctance motor, the electric energy recycling efficiency is higher, and a greater torque can be generated under a highrotating speed. The motor can recycle the electric energy to another battery while acting, so that the utilization efficiency of the electric energy is improved.

Description

Technical field [0001] The invention belongs to the field of electric power technology, and specifically relates to an electric energy recovery type switched reluctance motor. Background technique [0002] Ordinary DC motors generate back-EMF due to the movement of the rotor or stator coils in the magnetic field. The back-EMF can offset part of the voltage applied by the motor coils. The higher the motor speed, the greater the offset voltage, resulting in high motor speeds. , When the input voltage is constant, the armature coil current is small, which affects the current input of the motor and cannot produce more torque. We have known that the cause of the back-EMF is the movement of the excitation coil or the permanent magnet in the motor relative to the armature coil, which causes the magnetic field of the armature coil to change. If a motor rotor made of ferromagnetic materials such as electrical steel is used to complete the magnetic circuit, no back electromotive force wil...

AI Technical Summary

Problems solved by technology

[0002] Ordinary DC motors generate counter electromotive force due to the movement of the rotor or stator coil in the magnetic field. The counter electromotive force can offset part of the voltage applied by the motor coil. The higher the motor speed, the greater the offset voltage, resulting in high motor speed. , when the input voltage is constant, the current of the armature coil is small, which affects the current input of the motor and cannot generate greater torque

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