TUNING CONTROLLERS WITH ERROR-INTEGRAL CRITERIA

THE POPULAR 1/4 DECAY RATIO AS A CRITERION OF GOOD CONTROL HANGS EVERYTHING ON JUST TWO POINTS IN THE SYSTEM RESPONSE CURVE. A RESPONSE WHICH MINIMIZES CERTAIN INTEGRALS OF THE ERROR IS A MUCH BETTER OPTIMUM, TAKING INTO ACCOUNT ALL THE DYNAMIC BEHAVIOR OF THE SYSTEM. THE AUTHORS HAVE DEVELOPED GRAPHS BY WHICH THE CONTROLLER PARAMETERS CAN BE RELATED TO CHARACTERISTICS OF A POPULAR PROCESS MODEL. /AUTHOR/