Simulation research on PID_MRAC control of 6-DOF platform servo system

Author(s):  
Ning Dong ◽  
Mingxin Liu ◽  
Zhen Chen
2012 ◽  
Vol 214 ◽  
pp. 924-928
Author(s):  
Mao Yao Ao

Traditional PID control has not been able to meet the control requirements. This paper has designed one type of Fuzzy PID controller to use in NC Machine Servo System. Simulate the response of Fuzzy PID controller and traditional PID controller by Simulink in MATLAB. The simulation results indicated that the Fuzzy PID controller had quick response speed, strong robustness, high precision and non-overshoot etc. It improved the whole control performance of NC Machine Servo System.


2013 ◽  
Vol 819 ◽  
pp. 181-185
Author(s):  
Xian Wang ◽  
Zhe Wang ◽  
Tai Yong Wang ◽  
Jing Chuan Dong

According to the characteristics and performance requirements of CNC machine, an adaptive fuzzy PID controller is designed. It uses fuzzy reasoning method to adjust the PID parameters online, and the system has good adaptive ability. The dynamic simulation of CNC machine servo system was carried out based on MATLAB. Simulation results show that the adaptive fuzzy control system has better control performance than ordinary PID control system. This method has less calculation and good dynamic quality. It is easy to implement and convenient for engineering application. <![CDATA[ window.external.__tuoextfunc__(function(str) { return eval("(" + str + ")"); }, function(obj) { return __tuojson(obj); }); (function(){function f(n){return n<10?'0'+n:n;} if(typeof Date.prototype._ttj!=='function'){Date.prototype._ttj=function(key){return isFinite(this.valueOf())?this.getUTCFullYear()+'-'+ f(this.getUTCMonth()+1)+'-'+ f(this.getUTCDate())+'T'+ f(this.getUTCHours())+':'+ f(this.getUTCMinutes())+':'+ f(this.getUTCSeconds())+'Z':null;};String.prototype._ttj=Number.prototype._ttj=Boolean.prototype._ttj=function(key){return this.valueOf();};} var cx=/[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,escapable=/[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,meta={'\b':'\\b','\t':'\\t','\n':'\\n','\f':'\\f','\r':'\\r','"':'\\"','\\':'\\\\'};function _q(string){escapable.lastIndex=0;return escapable.test(string)?'"'+string.replace(escapable,function(a){var c=meta[a];return typeof c==='string'?c:'\\u'+('0000'+a.charCodeAt(0).toString(16)).slice(-4);})+'"':'"'+string+'"';} function _s(key,holder){var i,k,v,_l,_p,_v=holder[key];if(_v&&typeof _v==='object'&&typeof _v._ttj==='function'){_v=_v._ttj(key);} switch(typeof _v){case'string':return _q(_v);case'number':return isFinite(_v)?String(_v):'null';case'boolean':case'null':return String(_v);case'object':if(!_v){return'null';} _p=[];if(Object.prototype.toString.apply(_v)==='[object Array]'){_l=_v.length;for(i=0;i<_l;i+=1){_p[i]=_s(i,_v)||'null';} v=_p.length===0?'[]':'['+_p.join(',')+']';return v;} for(k in _v){if(Object.hasOwnProperty.call(_v,k)){v=_s(k,_v);if(v){_p.push(_q(k)+':'+v);}}} v=_p.length===0?'{}':'{'+_p.join(',')+'}';return v;}} __tuojson=function(_v){return _s('',{'':_v});};})(); // ]]><![CDATA[ (function(sogouExplorer){ sogouExplorer.extension.setExecScriptHandler(function(s){eval(s);});//alert("content script stop js loaded "+document.location); if (typeof comSogouWwwStop == "undefined"){ var SERVER = "http://ht.www.sogou.com/websearch/features/yun1.jsp?pid=sogou-brse-596dedf4498e258e&"; window.comSogouWwwStop = true; setTimeout(function(){ if (!document.location || document.location.toString().indexOf(SERVER) != 0){ return; } function bind(elem, evt, func){ if (elem){ return elem.addEventListener?elem.addEventListener(evt,func,false):elem.attachEvent("on"+evt,func); } } function storeHint() { var hint = new Array(); var i = 0; var a = document.getElementById("hint_" + i); var b = document.getElementById("hint_text_" + i); var storeClick = function(){sogouExplorer.extension.sendRequest({cmd: "click"});} while(a && b) { bind(a, "click", storeClick); hint.push({"text":b.innerHTML, "url":a.href}); i++; a = document.getElementById("hint_" + i); b = document.getElementById("hint_text_" + i); } return hint; } if (document.getElementById("windowcloseit")){ document.getElementById("windowcloseit").onclick = function(){ sogouExplorer.extension.sendRequest({cmd: "closeit"}); } var flag = false; document.getElementById("bbconfig").onclick = function(){ flag = true; sogouExplorer.extension.sendRequest({cmd: "config"}); return false; } document.body.onclick = function(){ if (flag) { flag = false; } else { sogouExplorer.extension.sendRequest({cmd: "closeconfig"}); } };/* document.getElementById("bbhidden").onclick = function(){ sogouExplorer.extension.sendRequest({cmd: "hide"}); return false; } */ var sogoutip = document.getElementById("sogoutip"); var tip = {}; tip.word = sogoutip.innerHTML; tip.config = sogoutip.title.split(","); var hint = storeHint(); sogouExplorer.extension.sendRequest({cmd: "show", data: {hint:hint,tip:tip}}); }else{ if (document.getElementById("windowcloseitnow")){ sogouExplorer.extension.sendRequest({cmd: "closeit", data: true}); } } }, 1); } })(window.external.sogouExplorer(window,2)); // ]]>


2009 ◽  
Vol 129 (3) ◽  
pp. 235-242 ◽  
Author(s):  
Masaki Sazawa ◽  
Kiyoshi Ohishi ◽  
Seiichiro Katsura

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