MATLAB® and Its Applications in Engineering: [Based on MATLAB 7.5 (R2007b)]

12.22. Summary

The chapter can be summarized in following points:

• The basic concepts of root locus technique, i.e. magnitude and angle condition are explained.

• The use of MATLAB function rlocus to draw root locus is illustrated.

• The plotting of root locus using plot command is also described.

• Drawing of polar gridlines in root locus diagram using sgrid command is discussed.

• rlocfind function, which is used to find gain K at a given point on the root locus, is illustrated with suitable examples.

• The plotting of root locus for systems given in state-space representation is also described.

• The basic concepts of frequency domain analysis of control system are discussed.

• The use of bode and logspace functions to draw bode diagram is illustrated.

• Calculation ...