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Product Name: VisSim/Analyze™
Product Description
VisSim/Analyze
lets you perform a frequency domain analysis of a VisSim model or
subsystem. It helps answer the question "Is this a stable
system?"
VisSim/Analyze approximates the dynamics
of a nonlinear system by linearizing the system about a specified
operating point. Linearized systems can be represented in ABCD
state space or transfer function form. With VisSim Analyze, you
can easily access transfer function information;
edit zeros and poles; and compute
Nyquist, Bode, and root locus plots.
Interactive
Controller Design: Designing a controller for a plant model is
performed interactively by editing compensator zeros and poles,
and observing the combined controller-plant behavior in Bode and
root locus plots. Once the desired responses are obtained, the
resulting controller block is simply inserted into a VisSim
diagram.
The preliminary pole placement
controller is connected to a plant model creating a feedforward or
a feedback control loop. A simulation is run in VisSim and the
results of the simulation are easily viewed
in graphical plots. The stability
of the closed-loop system can then be
determined using Nyquist plots.
Compensator
Design: VisSim/Analyze also features a compensator
design capability that lets you
interactively design feedback control systems. You edit the poles
and zeros of the compensator transfer function in a floating
window. In return, VisSim/Analyze automatically updates the Bode
and root locus plots of the combined plant-compensator system to
reflect the effects of the pole and zero manipulation. Once you
attain the desired response characteristics, you can place the
compensator in the VisSim diagram.
Analysis of Discrete
Transfer Functions: VisSim/Analyze supports analysis of
discrete transfer functions. This lets you effectively handle the
most general closed-loop system scenarios where a plant is modeled
as a continuous dynamic system and the controller is a discrete
(sampled data) system suitable for easy implementation on
micro-controller hardware.
Features
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Approximates
the dynamics of a nonlinear system by linearizing the system
about a specific operating point
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Generates
ABCD state-space matrix (screen display or .M/.MAT file
exportation)
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Performs
numerical perturbation for creating SISO ABCD
state-space matrices
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Calculates
transfer function information, including numerator and
denominator polynomials in the powers of the s-plane; gain,
zeros, and poles locator; and cleansing of numerical round-off
errors
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Computes
Bode phase and magnitude
plots, root locus plots, and
Nyquist plots
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Provides
interactive compensator design
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Analyzes
discrete transfer functions
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