Vector and vector are a method or concept of mathematical vector (vector) analysis. The two are the same concept, but the different names are simple. The definition is the quantity that has both size and direction. Vector is our (continental) statement, and the vector is generally used in the literature of Hong Kong and Taiwan. The meaning is roughly the same as the meaning of "Bush" and "Bush". Vector control is primarily a concept of motor model decoupling.
The vector inverter technology is based on the DQ axis theory. Its basic idea is to decompose the motor current into D-axis current and Q-axis current. The D-axis current is the excitation current and the Q-axis current is the torque current. Separating the excitation current and torque current of the AC motor makes the AC motor have similar control characteristics as the DC motor. It is an ideal control theory for the AC motor design, which greatly improves the control characteristics of the AC motor. However, this control theory has not only been applied to AC asynchronous motors, but also for DC inverter motors (BLDC, also known as permanent magnet synchronous motors).
Vector and vector are a method or concept of mathematical vector (vector) analysis. The two are the same concept, but the different names are simple. The definition is the quantity that has both size and direction.
Vector is our (continental) statement, and the vector is generally used in the literature of Hong Kong and Taiwan. The meaning is roughly the same as the meaning of "Bush" and "Bush". Vector control is primarily a concept of motor model decoupling.
In the electrical field, it is mainly used to analyze AC power, such as motor analysis. The application in the inverter is based on the theory of motor analysis. It is called vector control inverter. The method is not unique, but the mathematical model. Basically consistent.
The vector inverter technology is based on the DQ axis theory. Its basic idea is to decompose the motor current into D-axis current and Q-axis current. The D-axis current is the excitation current and the Q-axis current is the torque current. Separating the excitation current and torque current of the AC motor makes the AC motor have similar control characteristics as the DC motor. It is an ideal control theory for the AC motor design, which greatly improves the control characteristics of the AC motor. However, this control theory has not only been applied to AC asynchronous motors, but also for DC inverter motors (BLDC, also known as permanent magnet synchronous motors).
In the electrical field, it is mainly used to analyze AC power, such as motor analysis. The application in the inverter is based on the theory of motor analysis. It is called vector control inverter. The method is not unique, but the mathematical model. Basically consistent.
How the vector inverter worksThe basic principle of vector control inverter is to control the excitation current and torque current of the asynchronous motor according to the principle of magnetic field orientation by measuring and controlling the stator current vector of the asynchronous motor, so as to achieve the purpose of controlling the torque of the asynchronous motor. Specifically, the stator current vector of the asynchronous motor is decomposed into a current component (excitation current) that generates a magnetic field and a current component (torque current) that generates a torque, and simultaneously controls the amplitude and phase between the two components, that is, the control. The stator current vector, so this control method is called the vector control method. Since the vector control can make the inverter change the output frequency and voltage in real time according to the frequency and load conditions, its dynamic performance is relatively perfect. It can accurately control the torque; the system responds quickly; the speed range is wide; the acceleration and deceleration performance is good. In the case of high torque control requirements, the user's superior control performance is appreciated.
Many new general-purpose inverters now also have vector control functions, but only require complete motor parameters to be entered during parameter setting. Because the vector control is based on the parameters of the motor, the complete motor parameters are especially important, so that the inverter can effectively identify the motor and control the motor very well.
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