pzmap returns system poles and transmission zeros for dynamic systems. Function works with SISO and MIMO systems. Multiple models can be plotted together on same axes
Step function is used for design control in Matlab. Unit step function has zero for negative arguments and one for positive. Step function can be used with other functions called system functions
Steady-state model includes armature current, back emf, voltage, and speed. Developed torque, back emf, and power are calculated using specific equations. No-load speed occurs when load torque is zero
Transfer function models system output for each possible input. Can be represented as two-dimensional graph of input versus output. Used in circuit simulators and control systems. Dimensions model device output response for various input ranges
State-space model describes physical systems using input, output, and variables. System state evolves based on current state and external input values. State space is geometric space where state variables are axes. Linear, time-invariant systems can be represented in matrix form
There is no single state-space model that uniquely represents a given transfer function. Canonical forms are standard transformations from differential equations or transfer functions