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The MathWorks updates Simulink Control Design with improved PID tuning features

The MathWorks today announced the availability of Simulink Control Design 3.0, equipped with new features that automate the process of tuning proportional-integral-derivative (PID) controllers. These features are being released along with new PID Controller blocks in Simulink.

Engineers can use these blocks to quickly create PID controllers, select PID structure, include integrator anti-windup logic, convert from continuous-time to discrete-time domain, and prepare the controller for implementation on a processor using fixed-point arithmetic.

A new tuning algorithm in Simulink Control Design 3.0 automatically calculates PID controller gains based on desired phase margin and system bandwidth. A new user interface supports visual tuning of PID controllers for all types of plant models, without requiring expert knowledge of control theory. The resulting design can then be verified through simulation in Simulink, which reduces the amount of time needed for tuning and testing on expensive hardware prototypes. Engineers can then use Real-Time Workshop to automatically generate code for implementation on target microcontrollers.

Additional new features in Simulink Control Design 3.0 include:

• New functionality for advanced linear analysis. Users can now compute the frequency response of Simulink models using simulation. This helps engineers more easily linearize Simulink models that have strong discontinuities or event-based dynamics, with no model modification required.

• Ability to specify custom linearization for Simulink blocks and subsystems. Engineers can, for example, mark a Gain block as uncertain and linearize the model to create a corresponding uncertain system. Using Robust Control Toolbox with this system, users can then design a controller that meets stability and performance requirements in the presence of uncertainty.

Press release issued by The MathWorks Inc on September 23, 2009


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The MathWorks Inc CIM Systems, Computer-aided Analysis, CIM Software, Computer-aided Simulation, Computer-aided Design


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