frequency converter technology is based on the DQ axis theory, and its
basic idea is to break the motor current D-axis current and Q-axis
current, where the D-axis current is the excitation current, Q-axis
current is the torque current, The
AC motor has the same control characteristics as the DC motor. It is an
ideal control theory designed for the AC motor, which greatly improves
the control characteristic of the AC motor. However, the current control theory has not only applied to the AC
asynchronous motor, DC inverter motor (BLDC, that is, permanent magnet
synchronous motor) also extensive use of the control theory.
Vector and vector is a mathematical vector (vector) analysis of a
method or concept, the two are the same concept, but the name is
different, a simple definition is both the size and direction of the
Vector is our (mainland) argument, the vector is generally used in Hong Kong and Taiwan literature. Meaning and "Bush" and "Bush" meaning roughly the same. Vector control is mainly a motor model decoupling concept.
the field of electrical energy is mainly used for the analysis of AC
power, such as motor analysis, the application in the inverter is based
on the theory of motor analysis frequency control, called vector control
inverter, the method is not unique, but the mathematical model Basically the same.