Control method of brushless motor intelligent controller
According to the different control methods can be divided into DC motor and AC commutator motor. DC brushless motor adopts the AC-DC-AC control system or DC control system, usually the AC rectifier 50Hz into DC or directly with DC, by the semiconductor converter into the adjustable frequency AC synchronous motor with inverter supply. AC brushless motor with AC - AC control system, it is the use of semiconductor converter directly to the semiconductor directly to the transformation of 50Hz into alternating current adjustable frequency AC synchronous motor to achieve speed, supply.
The non commutator motor has a plurality of structures depending on the control elements and the control modes used. Generally low voltage, small capacity of the commutator motor is mostly transistor motor, small transistor motor is usually referred to as brushless DC motor. The high voltage, large capacity of the commutator motor is mostly thyristor motor.
The characteristics of the commutator motor are very similar to that of the common DC motor, which can run in four quadrants. However, it has no brush and commutator, so the structure is simpler than DC motor, easy to maintain, easy to achieve low speed, large capacity, high speed and large capacity, speed is convenient, without losing step, and therefore a wide range of applications. In the inflammable and explosive, high pressure environment is relatively bad conditions, such as cement plants, chemical plants, mines, oil and submarines can also use; and people can not suitable for installation in equipment, such as atomic energy equipment, high-altitude aircraft and remote islands and other places.
