نتایج جستجو برای: FOPID
تعداد نتایج: 209 فیلتر نتایج به سال:
Trajectory tracking is an essential capability of robotics operation in industrial automation. In this article, an artificial neural controller is proposed to tackle trajectory-tracking problem of an autonomous ground vehicle (AGV). The controller is implemented based on fractional order proportional integral derivative (FOPID) control that was already designed in an earlier work. A non-holonom...
Based on the electromagnetism-like algorithm, an evolutionary algorithm, improved EM algorithm with genetic algorithm technique (IEMGA), for optimization of fractional-order PID (FOPID) controller is proposed in this article. IEMGA is a population-based meta-heuristic algorithm originated from the electromagnetism theory. It does not require gradient calculations and can automatically converge ...
In this paper, a comparative study is done on the time and frequency domain tuning strategies for fractional order (FO) PID controllers to handle higher order processes. A new fractional order template for reduced parameter modelling of stable minimum/non-minimum phase higher order processes is introduced and its advantage in frequency domain tuning of FOPID controllers is also presented. The t...
PID controller is the most widely used controller in industry for control applications due to its simple structure and easy parameter adjusting.But increase in complexity of control systems has introduced many modified PID controllers.The recent advancement in fractional order calculus has introduced fractional order PID controller and it has recieved a great attention for researchers.Fractiona...
This paper presents the implementation of Fractional Order PID controller as a supplementary controller to improve the dynamics of Load Frequency Control in an interconnected Power System. FOPID is a PID controller whose integral and derivative orders are of non-integer rather than integer. The extension of integration and derivative order from integer to fractional order provides more flexibil...
This study investigates disturbance rejection capacity of closed loop control systems by means of reference to disturbance ratio (RDR). The RDR analysis calculates the ratio of reference signal energy to disturbance signal energy at the system output and provides a quantitative evaluation of disturbance rejection performance of control systems on the bases of communication channel limitations. ...
Wind powers are very unstable in voltage fluctuations, especially in short circuit error and sharp and sudden voltage drops, which one of its main reasons is the use of induction generators in these power plants and thus need to reactive power and high magnetizing current. To improve the ride_through voltage from WECS in error conditions and damping the oscillations of the induction generator r...
This paper addresses optimal design and performance analysis of the Social Spider Optimization (SSO) algorithm based Fractional Order Proportional Integral Derivative (FOPID) controller for load frequency control (LFC) in an interconnected multi-source power system. Since this controller has more adjusted parameters than classical proportional-integral-derivative (PID) controller, thus it provi...
Smart grids and their technologies transform the traditional electric to assure safe, secure, cost-effective, reliable power transmission. Non-linear phenomena in systems, such as voltage collapse oscillatory phenomena, can be investigated by chaos theory. Recently, renewable energy resources, wind turbines, solar photovoltaic (PV) arrays, have been widely used for generation. The design of con...
در این مقاله روش جدیدی برای کنترل سرعت موتورهای bldc ارائه می شود. در این روش از کنترل کننده pid مرتبه کسری (fopid) جهت کنترل موتور bldc استفاده شده است. ویژگی کنترل کننده pid مرتبه کسری، مقاومت و سادگی ساختار نسبت به سایر کنترل کننده های مقاوم می باشد. جهت تعیین پارامترهای کنترل کننده fopid از الگوریتم رقابت استعماری (ica) که دارای سرعت و دقت بالایی در حل مسائل بهینه سازی است بهره گرفته شده اس...
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