Neural network with Model Predictive control of PMSM
This video explains the neural network speed control of PMSM with model predictive control concept in matlab simulink.
Neural Network with Model Predictive Control of PMSM: Improving Performance and Efficiency
Permanent Magnet Synchronous Motors (PMSMs) are widely used in many industrial applications, from electric vehicles to robotics, due to their high efficiency, power density, and speed control. However, the dynamic behavior of PMSMs can be complex and non-linear, requiring advanced control techniques to achieve optimal performance and efficiency. In recent years, Model Predictive Control (MPC) and Neural Networks (NNs) have emerged as promising approaches for PMSM control, offering significant advantages over traditional methods. In this article, we will explore the use of NNs with MPC for PMSM control and its benefits.
PMSM Control Techniques
Traditional Control Methods
Traditionally, PMSMs are controlled using Proportional-Integral-Derivative (PID) controllers or Field-Oriented Control (FOC) algorithms. These methods rely on mathematical models of the motor and the control system to achieve a desired performance. While effective in many cases, these methods have limitations when it comes to dealing with non-linearities, disturbances, and uncertainty, which can lead to suboptimal performance, stability issues, and energy waste.
Model Predictive Control
MPC is a model-based control technique that uses a mathematical model of the system and predictions of its future behavior to calculate an optimal control action. MPC can handle non-linearities, constraints, and disturbances, and it can adapt to changing conditions in real-time. MPC has been applied successfully to PMSM control, improving performance, efficiency, and robustness.
NNs are a type of machine learning algorithms that can learn complex mappings between inputs and outputs from data. NNs are widely used in various fields, including image recognition, natural language processing, and control. In the context of PMSM control, NNs can be used to model the motor and its control system, to predict its behavior, and to generate optimal control signals. NNs have several advantages over traditional methods, including their ability to handle non-linearities and uncertainties, their adaptability, and their high computational efficiency.
Neural Network with Model Predictive Control of PMSM
The combination of NNs and MPC for PMSM control has been shown to offer significant advantages over traditional methods. In this approach, an NN is trained to model the motor and its control system, using historical data or simulations. The NN can then be used to predict the future behavior of the system and to generate optimal control signals, based on an MPC framework.
Training the Neural Network
Training an NN for PMSM control involves several steps, including data collection, preprocessing, feature extraction, and model selection. The data used to train the NN can be obtained from experiments, simulations, or a combination of both. The data should include various operating conditions, such as different loads, speeds, and disturbances, to ensure the NN's robustness and generalization ability.
Implementing Model Predictive Control
Once the NN is trained, it can be integrated into an MPC framework for PMSM control. The MPC algorithm calculates an optimal control signal based on the current state of the system and the predicted future behavior, using the trained NN. The MPC algorithm can also consider constraints, such as current and voltage limits, and adapt to changing conditions in real-time.