Spin Rinse Dryer Machine

This motor adopts permanent magnetic servomotor, dimentions are customized based on Spin Rinse Driver (SRD)requirements.   Matched with its supporting control system, which haspowerful functions. The equipment manufacturer can choose its own control mode.The servo system (customized motor&customized controller) has the followingcharacteristics:

Low motor temperature rise; Fast start stop response;   High control accuracy; Good reliability;

The mechanical size of the dryer motor isclose to the imported brand, which is convenient for customers to update andupgrade the equipment;

Motor shaft is made of 2Cr13 or rustproof treatment material to prevent equipment pollution caused by rust;

The front and rear end covers of themotor are processed by non-standard turning and milling, and the installationholes are parallel and symmetrical, facilitating the installation of thecustomer's bracket;

The motor shaft end adopts hollow design.The customer directly inserts the load basket into the motor shaft. The hardconnection effectively avoids the vibration and noise generated by thesynchronous belt; A threaded hole is reserved at the bottom of the shaft holeto facilitate customers to firmly fix the load blue.

The motor adopts the external encoderscheme, which is convenient for customers to add pneumatic brake at the rear ofthe motor;

Motor controller can automaticallyidentify motor parameters, identify encoder zero position, and automaticallylearn equipment gain requirements;
Six Phase Motor (2*3phase motor) / Five Phase Motor

These sixphase motors are designed based on permanent magnet synchronous brushless servomotors, using a dual three-phase winding asymmetric phase shift design of 30 ° (with a 30 degree interval between the two sets ofwindings). All intermediate nodes of the six phase motors (dual three-phasewindings) are led out, with a total of 12 motor leads and a built-in 2500 wirephotoelectric encoder or rotary converter. It can be widely used in shippropulsion systems, automotive power systems, power control systems, and otherhigh-end power systems.

The phaseband angle of the asymmetric six phase motor is consistent with that of thesymmetric twelve phase motor, which is 30 °. Therefore, its magnetic potential spatialdistribution is consistent with that of the symmetric twelve phase motor, thatis, the asymmetric six phase motor eliminates the 5th and 7th harmonic magneticpotentials internally, thereby eliminating the 6th torque ripple. The minimumnumber of torque pulsations has been increased to 12, thus it has a greateradvantage in suppressing torque pulsations.

A six phasemotor can achieve high power output at low voltage. As the number of phases inthe motor increases, the permanent magnet flux or back electromotive force ofeach phase winding will decrease proportionally, resulting in a decrease in thesupply voltage, which can achieve high power output at low voltage.

When one ormore phase faults occur in the stator winding of a six phase motor, it can beoperated at reduced capacity without the need for a neutral line, and there isno need to stop and reassemble. In this case, by adopting an appropriatefault-tolerant control strategy, the remaining motor windings can be recombinedinto a circular rotating magnetic potential trajectory, allowing the motor tocontinue stable operation. Therefore, multiphase motors are very suitable forhigh reliability requirements where mid stop is strictly prohibited.

As the numberof motor phases increases, the number of spatial harmonics increases, and thefrequency of torque ripple increases

Highamplitude reduces the noise and vibration during motor operation. The morephases a motor has, the higher the frequency of torque ripple generated by thefundamental current.

For a sixphase motor, constant torque can be generated by injecting a suitable ratio oflow order harmonic current and corresponding harmonic magnetic field, therebyincreasing the power density of the motor. The spatial voltage vector ofmultiphase inverters increases exponentially, providing abundant controlresources for the control of multiphase motors, such as PWM modulation, directtorque control, and predictive current control. Multiphase motors can achievedecoupling of fundamental torque components and harmonic components throughvector space decoupling; By controlling the harmonic sub plane components, deadzone compensation and asymmetric compensation can be achieved; Overmodulationand parameter identification can also be achieved by injecting harmoniccomponents.