NOXON Automation motor, German NOXON Automation model, NOXON Automation price

NOXON Automation motors are a new generation of gear reduction motors, featuring compact size, low noise, maintenance-free operation, and an attractive appearance. The speed ranges from 0.83r/min to 300r/min. This series of low-speed motors is a new high-tech product that integrates electromagnetic drive and reduction mechanism within the motor housing. The low speed and high torque directly meet customer requirements without the need for additional reduction devices. The motor uses Class B and Class F insulation, with protection ratings of IP44 and IP55, and voltages of 220V and 380V.

NOXON Automation motor operating principle

The motor uses capacitor phase shifting to separate single-phase AC power into another phase with a 90-degree phase difference. These two phases of AC power are fed into two or four sets of motor coil windings, creating a rotating magnetic field inside the motor. This rotating magnetic field induces current in the rotor, and the magnetic field generated by this induced current opposes the rotating magnetic field, causing the rotor to be pushed and pulled into rotation. Since the rotor must cut magnetic flux lines to generate induced current, the rotor speed must be lower than the synchronous speed of the rotating magnetic field; hence, it is called an asynchronous motor. Three-phase asynchronous motors do not require capacitor phase shifting, as they inherently have three-phase AC power with a 120-degree phase difference, resulting in a more uniform rotating magnetic field and higher efficiency. In permanent magnet synchronous AC motors, the magnetic field is generated by permanent magnets, and the rotor coils are powered via brushes. The speed is an integer multiple (or fraction) of the AC frequency (depending on the number of rotor coil windings), hence the term synchronous motor. Motors where rotor coils are powered via brushes and the stator generates a rotating magnetic field through windings are classified as series-wound or shunt-wound motors based on the series or parallel connection between the rotor and stator coils. A DC motor consists mainly of a stator and a rotor. The stator has magnetic poles (wound or permanent magnet), and the rotor has windings. When energized, a magnetic field (poles) forms on the rotor. There is an angle between the magnetic poles of the stator and rotor. Under the mutual attraction of the stator and rotor magnetic fields (between the N pole and the S pole), the motor rotates. Changing the position of the brushes changes the direction of the angle between the stator and rotor magnetic poles (assuming the stator pole is the starting side of the angle, the rotor pole is the other side, and the direction from the rotor pole to the stator pole defines the motor's rotation direction), thereby changing the motor's rotation direction.

NOXON Automation motor mechanical characteristics

Motor control issues. Permanent magnet synchronous motors maintain their magnetic field without external energy, but this makes external adjustment and control of the magnetic field extremely difficult. However, with the development of power electronic devices such as MOSFET and IGBT, and control technologies, most permanent magnet synchronous motors in application can operate with only armature control, without magnetic field control. Design requires combining three new technologies: permanent magnet materials, power electronic devices, and microcomputer control, enabling permanent magnet synchronous motors to operate under new working conditions. Furthermore, permanent magnet AC servo systems using permanent magnet synchronous motors as actuators involve systems with certain nonlinearity, strong coupling, and time-variance. The servo objects also exhibit strong uncertainty and nonlinearity, and the system is susceptible to varying degrees of interference during operation. Therefore, adopting advanced control strategies and implementation methods (such as DSP-based control) to improve the overall intelligence and digitalization level of the system should be a major breakthrough in the current development of high-performance permanent magnet synchronous motor servo systems.

NOXON Automation motor applications

Motors have advantages such as simple structure, ease of manufacturing, low cost, and reliable operation, but their power factor is relatively low (less than 0.5), and efficiency is also low. The power of reluctance synchronous motors generally ranges from a fraction of a watt to hundreds of watts, and they are commonly used in automatic control devices, physical instruments, movie projectors, electrostatic copiers, and other equipment. Reluctance synchronous motors have a simple structure, low cost, and reliable operation, and are widely used in automatic and remote control devices, recording, faxing, and the clock industry. An AC motor whose operating speed maintains a constant ratio to the frequency of the connected power supply. During operation, the motor speed equals the synchronous speed, which is the origin of the term synchronous motor. Synchronous motors are widely used in high-power production machinery that does not require speed adjustment, such as large air compressors, crushers, blowers, and motor-generator sets, with powers reaching several kilowatts or even tens of thousands of kilowatts. Compared to asynchronous motors of the same capacity, high-power synchronous motors have obvious advantages: high power factor, which can be operated at a leading power factor by adjusting the excitation current, helping to improve the grid power factor; and smaller size for high-power, low-speed synchronous motors. Synchronous motors can be classified into salient-pole and non-salient-pole types based on rotor structure characteristics, with most being made as salient-pole types. Classified by the fixed position of the magnetic poles, there are rotating-armature types (where the magnetic poles are fixed on the stator, and the rotor contains nested three-phase AC windings connected to the external circuit via slip rings and brushes on the shaft) and rotating-field types (where the magnetic poles are fixed on the rotor), with the latter being more common. The magnetic poles of synchronous motors are generally excited by DC current; those using permanent magnets are called permanent magnet synchronous motors. A synchronous motor operating in motor mode without a mechanical load, providing or absorbing reactive power to/from the grid, is called a synchronous condenser or synchronous compensator, used to improve grid power factor and maintain grid voltage levels.

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