Control Design

Linearize models and design control systems using Simulink^® Control Design™ software

To design and analyze control systems modeled in the Simulink environment, consider using Simulink Control Design software.

Simulink Control Design extends Simulink, allowing you to find operating points and compute exact linearizations of Simulink models at various operating conditions. Simulink Control Design provides tools that let you compute simulation-based frequency responses without modifying your model.

Simulink Control Design provides several approaches to tuning Simulink blocks, such as Transfer function and PID Controller blocks. You can use these techniques and tools to:

Automatically tune feedback loops containing PID Controller or PID Controller (2DOF) blocks.
Graphically or automatically tune SISO feedback loops containing any tunable Simulink blocks.
Tune Simulink models of control systems having any structure to meet high-level design goals such as reference tracking, disturbance rejection, and stability margins.

Topics

Trimming and Linearization

Compute Steady-State Operating Points (Simulink Control Design)
To obtain a steady-state operating point, you can trim your model using numerical optimization techniques or simulate your model until it reaches a steady-state condition.
Linearize Nonlinear Models (Simulink Control Design)
Obtain a linear approximation of a nonlinear system that is valid in a small region around an operating point.
Choose Linearization Tools (Simulink Control Design)
Simulink Control Design software lets you perform linear analysis of nonlinear models using a user interface, functions, or blocks.
Linearize Simulink Model at Model Operating Point (Simulink Control Design)
Linearize a model at its operating point consisting of initial state values and input signals.
Linearize at Trimmed Operating Point (Simulink Control Design)
You can linearize a Simulink model at an operating point that meets specified input, output, or state constraints.

Frequency Response Estimation

Frequency Response Estimation Basics (Simulink Control Design)
A frequency response describes the steady-state response of a system to sinusoidal inputs. Simulink Control Design lets you estimate the frequency response of a model or perform online estimation of a physical plant.
Estimate Frequency Response Using Model Linearizer (Simulink Control Design)
Estimate the frequency response of a Simulink model using a manually constructed sinestream input signal.

PID Control Design

Introduction to Model-Based PID Tuning in Simulink (Simulink Control Design)
Use PID Tuner for interactive tuning of PID gains in a Simulink model containing a PID Controller or PID Controller (2DOF) block.
PID Autotuning for a Plant Modeled in Simulink (Simulink Control Design)
Use the PID autotuning algorithm to tune against a plant modeled in Simulink while the model is running.

Control System Tuning

Tune Control Systems in Simulink (Simulink Control Design)
At the command line, use systune or looptune to automatically tune control systems modeled in Simulink.

Adaptive Control Design

Extremum Seeking Control (Simulink Control Design)
Update controller parameters to maximize an objective function in the presence of unknown system dynamics.
Model Reference Adaptive Control (Simulink Control Design)
Compute control actions to make an uncertain controlled system track the behavior of a given reference plant model.

Control Design Application

Thermal Modeling and Control Design for CPU Chip Cooling System (Control System Toolbox)

Create a CPU and heat sink thermal model, perform model order reduction, and design a controller for a cooling system.
- Create Heat Sink Finite Element Model and Export Data for State-Space Simulation (Control System Toolbox)
- Import Finite Element Model Data to Simulink (Control System Toolbox)
- Create Low-Order LPV Model of CPU and Heat Sink Model (Control System Toolbox)
- Tune PI Controller for Heat Sink Model (Control System Toolbox)

Related Information

Simulink Control Design
Control Design Onramp with Simulink (Simulink Control Design)
Virtual Hardware and Labs for Controls (MathWorks Teaching Resources)

Featured Examples

Designing a High Angle of Attack Pitch Mode Control

Use the Control System Toolbox™ and Simulink® Control Design™ to interact with Simulink to design a digital pitch control for the aircraft. In this example, we will design the controller to permit the aircraft to operate at a high angle of attack with minimal pilot workload.