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Nanotec motors are discrete-value control motors that convert electrical pulse excitation signals into corresponding angular or linear displacement. These motors move one step for each input electrical pulse, so they are also called pulse motors. They are micro-specialized motors that convert electrical pulse signals into angular displacement to control rotor rotation. They serve as actuators in automatic control devices. For each input pulse signal, the stepper motor advances one step, hence the name pulse motor. Stepper motors are widely used in peripheral equipment of digital computers, as well as in printers, plotters, and disk drives. The drive power supply for stepper motors consists of a variable-frequency pulse signal source, a pulse distributor, and a pulse amplifier, which provide pulse current to the motor windings. The operating performance of a stepper motor depends on the good coordination between the motor and the drive power supply. The advantages of stepper motors include no cumulative error, simple structure, ease of use and maintenance, low manufacturing cost, and high ability to drive load inertia. They are suitable for small and medium-sized machine tools and applications with low speed and precision requirements. The disadvantages include lower efficiency, significant heat generation, and occasional "loss of steps".

Nanotec motor development trends

Motor development trends: Since the emergence of switched reluctance motor drive systems in the 20s of the 80th century, traditional motor design theories and sinusoidal voltage source power supply methods have been broken. With the development of reluctance motors, permanent magnet motors, power electronics technology, and computer technology, the design of AC motor drive systems has entered a new golden age. New motor topologies and control methods have emerged endlessly, leading to the rapid development of a new generation of mechatronic motor drive systems. The main features of the SRD switched reluctance motor drive system are a compact and robust motor structure suitable for high-speed operation, simple and low-cost drive circuits, reliable performance, high efficiency over a wide speed range, and easy implementation of four-quadrant control. These characteristics make the SRD switched reluctance motor drive system very suitable for operation under various conditions of electric vehicles, making it a highly potential candidate for electric vehicles. The biggest characteristics of SRD are large torque ripple and high noise. In addition, compared to permanent magnet motors, the power density and efficiency are relatively low. Another disadvantage is the need for position sensors, which increases structural complexity and reduces reliability. Therefore, sensorless SRD is also one of the future development trends. Permanent magnet switched reluctance motors, also known as doubly salient permanent magnet motors, can adopt cylindrical radial magnetic field structures, disc axial magnetic field structures, and ring transverse magnetic field structures. This motor superimposes permanent magnet torque on reluctance torque; the presence of permanent magnet torque helps increase the motor's power density and reduce torque ripple, facilitating its application in electric vehicle drive systems. The concept of synchronous motors with rotor pole-splitting hybrid excitation structures has attracted great attention from the international electrotechnical community and the R&D centers of major automobile companies since its proposal. Synchronous motors with rotor pole-splitting hybrid excitation structures have magnetic field control capabilities, similar to the low-speed field strengthening control and high-speed field weakening control of DC motors, meeting the needs of electric vehicle traction motors for high torque at low speeds and constant power with wide speed regulation. Research on this motor is in the exploratory stage, and its mechanism and design theory require further in-depth study and improvement. As a traction motor for electric vehicles, it has strong potential competitive advantages.

Nanotec motor protection

Motor differential protection includes differential instantaneous trip protection and composite ratio differential protection with or without second harmonic braking. It can be used in applications with three-side differential current inputs (three-winding transformers). It has complete and powerful acquisition functions for primary equipment voltage and current analog quantities and switch quantities. It is equipped with standard RS485 and industrial CAN communication ports. Through reasonable configuration, it realizes protection and measurement/control functions such as three-winding main transformer differential protection, two-winding main transformer differential protection, two-winding distribution transformer differential protection, generator differential protection, motor differential protection, and non-electrical quantity protection.

Nanotec motor working principle

The starting and operation of the motor are formed by the interaction of the magnetic fields generated by the stator windings, the rotor squirrel-cage windings, and the permanent magnets. When the motor is stationary, a three-phase symmetrical current is applied to the stator windings, generating a rotating stator magnetic field. This rotating stator magnetic field rotates relative to the rotor, inducing current in the cage windings and forming a rotating rotor magnetic field. The asynchronous torque generated by the interaction between the rotating stator magnetic field and the rotating rotor magnetic field accelerates the rotor from standstill. During this process, the rotor permanent magnet field and the rotating stator magnetic field have different speeds, producing an alternating torque. When the rotor accelerates to a speed close to the synchronous speed, the speed of the rotor permanent magnet field approaches that of the rotating stator magnetic field. The speed of the rotating stator magnetic field is slightly higher than that of the rotor permanent magnet field, and their interaction produces torque that pulls the rotor into synchronous operation. In the synchronous operating state, no current is generated in the rotor windings. At this point, only the permanent magnets on the rotor produce a magnetic field, which interacts with the rotating stator magnetic field to generate driving torque. Thus, it can be seen that permanent magnet synchronous motors rely on the asynchronous torque of the rotor windings to start. After starting is complete, the rotor windings no longer play a role, and the driving torque is generated by the interaction of the magnetic fields produced by the permanent magnets and the stator windings.

Weidou Intelligent Technology specializes in selling German Nanotec motors, Nanotec motors, Nanotec drives, Nanotec synchronous motors, Nanotec servo motors, Nanotec DC motors, Nanotec AC motors, Nanotec stepper motors, Nanotec synchronous motors, Nanotec asynchronous motors, Nanotec single-phase motors, Nanotec three-phase motors, Nanotec drive motors, Nanotec geared motors, Nanotec electric motors, Nanotec original imports from Germany. Customers are welcome to inquire and order.