high-speed switched reluctance motor

This work will be switched reluctance motor and magnetic bearings combine the first three degrees of freedom using the double-ended symmetrical magnetic bearing structure, integrated design of the system, the motor rotor stability

Be suspended in the center of the stator, the realization 7.5Kw switched reluctance motor 35000rpm stably suspended operation, the line speed of 141m / s. Switched Reluctance to get rid of common mechanical axis

Order of bondage, Magnetic Grates can achieve higher speeds and power levels, broadening the scope of application of switched reluctance motor in multilevel / all-electric aircraft starter / generator system, high-speed

High-power field has a very broad application prospects.
Description: High-speed switched reluctance motors are involved in motor technology, magnetic levitation technology, power electronics and rotor dynamics and many other subjects of a comprehensive

Works. This work will be switched reluctance motor and magnetic bearings combine innovation and control through body design, implementation, motor 35000rpm high speed suspension. Switched reluctance electric

Machine easy to achieve high speed, high power, suitable for heavy, frequent starting and other harsh environments, but its great speed and power level by bearing constraints limit

The application of the motor system. If the switch reluctance motor using magnetic bearings, rotor suspended in the center of the stator, the stator and rotor without contact, speed, and so on to a higher power can be

Level development, improve motor ability to work high-speed high-power applications, broadening the scope of application of switched reluctance motor. This work is the first dual-ended symmetrical three degrees of freedom

Magnetic bearing structure, that ends with a three degrees of freedom are used to achieve the motor magnetic bearing suspended five degrees of freedom. Motors are compact, shorter axial length of the motor, increasing the

Rotor critical speed. Just one motor design a magnetic bearing, simple structure, easy to control, good symmetry, high versatility for the promotion and application of magnetic bearing has created

Favorable conditions. Three degrees of freedom using the double-ended structures, systems have certain fault tolerance, improved suspension system reliability. This works with permanent magnet bias magnetic bearings,

A permanent magnet to create a bias magnetic field, the quiescent current is very small suspended, especially suitable for some of the power demanding applications. Magnetic bearing controller can be online monitoring rotor

Operation and adjust according to the load suspended rotor position, the use of a bias magnetic field generated by the external static magnetic pull bear the load, so that the rotor is located in the best working position

, Reducing the system power consumption. Meanwhile, to reduce the switched reluctance motor unbalanced magnetic pull to the adverse effects of suspension system, the motor windings are connected in parallel windings

Current according to the size of the air gap is assigned automatically generate passive suspension force is beneficial to run the motor suspension. Permanent magnet biased radial magnetic bearing axial shaft can simultaneously achieve

, Radial suspension, the use of permanent magnets to establish a bias magnetic field, reducing the winding ampere turns, winding space saving, reducing the system power consumption. To achieve the essence of the magnetic bearing body

Correct design, we build an accurate model of the magnetic bearing magnetic precise design. The design method does not require the use of finite element simulation repeated testing, precision high-speed fast,

Magnetic bearing performance guarantees. This work presents a modified three-state sample and hold control strategy to improve the performance of magnetic bearing switching power amplifier, after the introduction of three-state law, electric

Current ripple is significantly weakened, reducing the magnetic pull of the pulse, reduce losses and improve the efficiency of the switching amplifier; almost independent of bus voltage current ripple effects that can pass

Increase over the current bus voltage to increase the response speed, improve system dynamic response performance. Switched Reluctance Motor for a new kind of position sensor fault detection

And fault-tolerant control methods to reduce switched reluctance motor position sensor failure on the reliable operation of the system, and is able to detect a variety of two position sensors appear

Fault, fault-tolerant control to ensure stable operation of the motor continues. This method can improve the motor at high temperature, dust, and other extreme environments, avoidance bit

Position sensor failure magnetic tool holder on the system to produce harm. Using magnetic bearings support the motor, the motor stator and rotor no direct contact, the speed limit is no longer subjected to mechanical bearings

System, there is no mechanical wear, reducing the friction loss in the rotor during operation, eliminating the pollution due to bearing lubricant, eliminating a large bearing lubrication, cooling unit

Position. Switched reluctance motor can move higher speed and power development, improve the power situation in the applicable motor capacity, all-electric aircraft in more electric starter / generator system

Systems, high-speed driving and other areas with a very broad application prospects.