Peaco Support Industrial Automation

The structure of a small wind power generation system is generally composed of a wind turbine , a generator, a rudder and an electrical control part. Conventional small wind turbines are mostly composed of induction generators or permanent magnet synchronous generators and AC/DC converters, batteries and inverters. In the blowing wind, the wind wheel rotates, turning aerodynamic energy into mechanical energy. The hub of the wind wheel is fixed on the generator shaft and the rotation of the wind wheel drives the rotation of the generator shaft, driving the permanent magnet three-phase generator to generate three-phase alternating current (AC). The wind speed changes continuously and the current and voltage generated by the generator also change accordingly. The generated electricity is rectified by the controller, is changed from alternating current (AC) to direct current (DC) with a certain voltage, make the battery charged. The direct current output from the battery pack is transforme...

 There some difference in desigh between synchronous and asynchronous motors. 1. The biggest difference between synchronous and asynchronous motors is whether the rotor speed is consistent with the magnetic field speed of the stator. If the rotor's rotational speed is the same as that of the stator, it is called a synchronous motor. Otherwise, it is called an asynchronous motor. 2. When the number of poles is constant, there is a close connection between the motor's speed and frequency, namely, it is synchronous connection. Asynchronous motors are also called induction motors, whose rotor speed during operation is always lower than that of synchronous motors. 3. The synchronization refers to that after the current flows through the electric drive (stator) windings, a rotating magnetic field will be formed in the air gap. The rotation direction and speed of the magnetic field are the same as the rotation of the rotor. Therefore, it is synchronous. As for asynchronous motors, t...

Brushless DC motor is one of synchronous motors, whose rotor speed is affected by the speed of the rotating magnetic field of its stator and the number of poles of the rotor. Brushless DC motors not only have a series of advantages of AC motors, such as simple structure, reliable operation and convenient maintenance but also have features such as high operating efficiency and good speed regulation performance of DC motors. The most important part of a brushless DC motor is its control structure, whose driver can control the rotor to maintain a certain speed, and its performance is more stable. Brushless DC motor is a low-power motor that uses electronic commutation and is widely used in modern production equipment, instrumentation and household appliances. Peaco Support brushless DC motors have many advantages. 1. High efficiency The efficiency of a traditional DC motor is generally about 75%, while the efficiency of a general brushless DC motor can reach more than 96%. With high effi...