The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In this paper, a two leg three phase inverter with four switches are used instead of six switches for three phase inverter. Artificial neural network (ANN) based controller is used for closed loop V/f control of induction motor (IM) drive. Here ANN is a feedforward network which is trained by levenberg marquardt (LM) algorithm. The conventional drive has good steady state response and poor transient...
Aimed at complex multi-motor composed of three motors, difficulty of control by traditional methods such as PID are obvious. An improved control method for three-motor synchronous system which is taken as the research object based on RBF NN inverse is put forward. and the three-motor system can be linearized in series with NN inverse. Here, the inverse can be constructed by combining the RBF NN with...
Three-motor synchronous speed-regulation system is a multi-input multi-output (MIMO), nonlinear, and coupling complex control system. This paper focuses on the system of induction motors powered by current-track type SPWM transducers, establishes the mathematical model of the system in the way of analytical expression. Self-tuning PID controllers based on RBF neural network and neuron decoupling compensator...
In this paper, a hybrid speed controller based on proportional integral (PI) controller and artificial neural network(ANN) is proposed as a speed controller for an indirect field oriented induction motor vector control system. The new controller has self-learning and self-organization capabilities. Its parameters are adjusted online according to back propagation (BP) algorithm. The weighting coefficients...
A general mathematic model of multi-motor system working on vector control mode is given. Here, a three-motor synchronous system was taken as the research object, and was proved to be invertible. A method of generalized growing and pruning RBF (GGAP-RBF) neural network inverse for synchronous control of multi-motor system is proposed. The inverse can be constructed by combining the RBF neural network...
The induction motor is a MIMO, nonlinear and high coupling system. The reversibility of the induction motor is testified. Consequently, a pseudo-linear system is completed by constructing a neural network inverse (NNI) system and combining it with the motor system. The inverse can transform the MIMO nonlinear system into two SISO linear subsystems (i.e., rotor speed and flux subsystems). In order...
The induction motor is a MIMO, nonlinear and high coupling system. The reversibility of the induction motor is testified. Consequently, a pseudo-linear system is completed by constructing a neural network inverse (NNI) system and combining it with the motor system. The inverse can transform the MIMO nonlinear system into two SISO linear subsystems (i.e., rotor speed and flux subsystems). In order...
On the basis of mathematic model analysis of multi-motor synchronous system, intelligent decoupling technology of multi-variable system is introduced to design neural network controller that is composed of self-turning PID controller based on diagonal recurrent neural network and adaptive neuron decoupling compensator, which make use of serial open loop decoupling strategy of adaptive neuron decoupling...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.