Permanent Magnet Synchronous Gearless Traction Machine of Cargo Elevator
The use of permanent magnet synchronous gearless traction machine than the traditional gear motor energy saving more than 25%, and there is no change of oil and other issues. Completely avoid the pollution of the environment, to meet the market demand trends at the same time, adhering to the SJEC's human-oriented philosophy.
Permanent magnet synchronous traction machine adopts VVVF frequency conversion variable speed system; multi-pole low-speed direct drive, with high power factor, low heat, high efficiency; using magnetic field directional vector control, with the DC motor as excellent turn Moment control characteristics, starting, braking current is significantly reduced, the required motor power and drive capacity are reduced.
High-precision manufacturing, low-speed direct drive, combined with precision speed control and full-controlled, force-loop VVVF drive systems provide very accurate stops with very smooth start and stop. Due to low bearing noise, no fan, no worm noise, noise can be generally lower than 5 to 10 dB, good comfort.
The control system uses CAN serial transmission technology to form a multi-computer network system, thus ensuring the rapid response of the control signal in the hardware and making the control precision of the system higher. The system has digital speed setting, acceleration and deceleration of S curve and torque offset function for compensating load. The car has no vibration during running, the leveling accuracy is high and the comfort is good. The control system's main control panel uses 32-bit CPU microcomputer intelligent network control, DSP redundancy control unit, high-performance vector frequency conversion drive unit, modular management. Configure reasonable detection logic software, can detect all kinds of situations may occur unreasonable protection action; Reliable reset circuit to ensure that even if the system hardware failure will not occur when the wrong output.
The cargo elevator in the group control system are linked by a target-specific and responsive controller area network. Each cargo elevator has the ability to perform all cluster functions. If any one lift from the group control group, other cargo elevator continue to operate for group control group. According to a variety of factors to determine the corresponding call of the car and the most appropriate route and service sequence, to ensure the shortest possible landing time. In the ups and downs of the peak, the use of fuzzy logic rules to serve passengers, to achieve the highest efficiency of operational services. Elevator supplier - Fujihd.net welcome your visit.