This GUI Solve Routh-Hurwitz Stability Criterion even if all element of row or first element of row is zero(0) ***************************new features*************************** **1-display result in listbox (if equation is very big==> no problem because listbox have slider to see all part of string)** ***2-change own row color(first element & all elements zero)*** 3-specify row color voluntary 4-plot singular value & nichols diagram 5-plot with LTI Viewer of MATLAB 6-in Z_plane diagram if repeated poles or zeros be exist then those show with star for poles & diamond for zeros 7-if equation have power >=10 then title of each plot correct with titgen.m function 8-correct some small problem ****************************************************************** --------------------------future release-------------------------- specify upper & lower limit of Gain(k) for stability system. ------------------------------------------------------------------ features: 1-Calculate exactly similar project cant solve accurate Routh-Hurwitz Stability Criterion for example this equation [1 1 3 3 3 2 1] have all element and first element zero simultaneity and i test any project and none solve it 2-Determine where first element or all element is zero graphically similar project show this with text and confuse us 3-Factor s=0 roots similar project dont have this feature . This gui factor s=0 roots and solve Routh-Hurwitz Stability Criterion 4-display number of roots this gui show number of 4-1-repeated roots on jw axis 4-2-left half plane roots 4-3-roots on jw axis 4-4-right half plane roots 4-5-number of center roots(s=0) that factor from input equation 4-6-number of repeated center roots(s=0) that factor from input equation 5-display result 5-1-unstable system 5-2-boundary stable system 5-3-stable system note: s=0 roots that factor in input equation affect on result 6-Save table of Routh-Hurwitz you can save table of Routh-Hurwitz in .mat format for future usage 7-Color Scheme(beautiful) you can change Color Scheme of this GUI 8-Solve Equation you can obtain roots of input equation with this note: s=0 roots that factor in input equation appear here 9-step & Impulse Response you can plot step & impulse response by determine numerator and denominator of transfer function . default numerator is [1] and default denominator is poly state of input equation note: if number of zeros greater than poles then gui give error message 10- Z_plane Diagram you can see Z_plane(place of zeros & Poles) in the figure 11-Root Locus & Nyquist & Bode Diagram you can see above diagram by determine numerator & denominator of transfer function be similar to section 9 12-support 2 Language English & Farsi 13-Examples this gui have 4 example for help you 14-Internal Help this gui have internal help in html format 15-user freindly everywhere you have mistake gui help you with messages ------------------------------------------------------------- for run this gui open matlab and run Routh_Horwitz.m ------------------------------------------------------------- IRAN_Khozestan_Mahshahr University Of Mahshahr only for "Mir hossein moussavi" ************************************************************ created by amin heidari Email: amin_heidari66@yahoo.com Special Thanks : Yair Altman Email: altmany@gmail.com 01/02/2010 13:50 All Rights Reserved *********************************************************** download link: http://rapidshare.com/files/344269923/Routh_Hurwitz_V2.9.zip.html

# Control System: Routh-Hurwitz Stability Criterion with GUI MATLAB V2.9

Started by ●February 1, 2010