LabVIEW Implementation of an Auto-tuning PID Regulator via Grey-predictor

Lee, Chien-ming; Liu, Yao-Lun; Shieh, Hong-Wei; Tong, Chia-Chang

doi:10.1109/iccis.2006.252318

Cited by 11 publications

(8 citation statements)

References 6 publications

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“…The buses are also available for inclusion. The abstraction layers and drivers act as graphical nodes and enable to communicate effectively with the hardware devices thereby offering standard software interfaces [8].…”

Section: Labview Packagementioning

confidence: 99%

Implementation of Robust Prediction Observer Controller for DC-DC Converter

Shenbagalakshmi¹,

Raja²

2013

Journal of Electrical Engineering and Technology

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-A discrete controller is designed for low power dc-dc switched mode power supplies. The approach is based on time domain and the control loop continuously and concurrently tunes the compensator parameters to meet the converter specifications. A digital state feedback control combined with the load estimator provides a complete compensation, which further improves the dynamic performance of the closed loop system. Simulation of digitally controlled Buck converter is performed with MATLAB/Simulink. Experimental results are given to demonstrate the effectiveness of the controller using LabVIEW with a data acquisition card (model DAQ Pad -6009).

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Section: Labview Packagementioning

confidence: 99%

Implementation of Robust Prediction Observer Controller for DC-DC Converter

Shenbagalakshmi¹,

Raja²

2013

Journal of Electrical Engineering and Technology

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“…The buses are also accessible for addition. The abstraction layers and drivers act as graphical nodes and enable to communicate effectively with the hardware devices thereby offering standard software interfaces [12]. This software is used to build up virtual instrumentation (vi) which comprises of the front panel and a functional block diagram.…”

Section: Hardware Implementationmentioning

confidence: 99%

“…The value of K p , T d and T i are tuned depending on the present error, accumulation of past errors and prediction of future error respectively [12].…”

Section: Design Of Robust Digital Controllermentioning

confidence: 99%

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Time Domain Based Digital Controller for Buck-Boost Converter

Vijayalakshmi¹,

Raja²

2014

Journal of Electrical Engineering and Technology

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-Design, Simulation and experimental analysis of closed loop time domain based Discrete PWM buck-boost converter are described. To improve the transient response and dynamic stability of the proposed converter, Discrete PID controller is the most preferable one. Discrete controller does not require any precise analytical model of the system to be controlled. The control system of the converter is designed using digital PWM technique. The proposed controller improves the dynamic performance of the buck-boost converter by achieving a robust output voltage against load disturbances, input voltage variations and changes in circuit components. The converter is designed through simulation using MATLAB / Simulink and performance parameters are also measured. The discrete controller is implemented, and design goal is achieved and the same is verified against theoretical calculation using LabVIEW.

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“…where u(t) is the control output, K p is the proportional gain constant, T d is the derivative time or rate time constant, T i is the integral time or reset time constant and e [12]. The Laplace transfer function of the corresponding PID controller is given as:…”

Section: Design Of Digital Controllermentioning

confidence: 99%

Development of Robust Discrete controller for Double Frequency Buck converter

Vijayalakshmi¹,

Raja

2015

Automatika

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Original scientific paperA discrete controller is designed for high efficiency double frequency buck converter. This double frequency buck converter is comprised of two buck cells: one works at high frequency, and another works at low frequency. It operates in a way that current in the high frequency switch is diverted through the low frequency switch. Thus, the converter can operate at very high frequency without adding any additional control circuits. Moreover, the switching loss of the converter remains small. The proposed converter exhibits improved steady -state and transient response with low switching loss. A digital compensator further improves the dynamic performance of the closed loop system. Simulation of digitally controlled double frequency buck converter is performed with MATLAB / Simulink. Experimental results are given to demonstrate the effectiveness of the controller using LabVIEW with a Data Acquisition Card (NI -9221).Key words: Analog to Digital conversion, Digital compensator, Double frequency (DF) buck converter Razvoj robusnog diskretnog regulatora za silazni pretvarač s dvostrukom frekvencijom preklapanja. Diskretni regulator je projektiran za postizanje visoke efikasnosti silaznog pretvarača s dvostrukom frekvencijom preklapanja. Ovaj silazni pretvarač s dvostrukom frekvencijom preklapanja sastoji se od dvajućelija: po jedna za rad na visokim i niskim frekvencijama preklapanja. Regulator funkionira tako da se struja preklapanja na visokim frekvencijama preusmjerava kroz prekidač za preklapanje na niskim frekvencijama. Tako pretvarač može funkcionirati na vrlo visokim frekvencijama bez dodatnih upravljačkih krugova. Štoviše, gubici prekidanja pretvarača ostaju mali. Prikazani pretvarač pokazuje poboljšanja kod odzivu u ustaljenom stanju te u prijelaznim pojavama uz male gubitke prilikom prekidanja. Digitalni kompenzator nadalje poboljšava dinamičke performanse sustava u zatvorenom krugu. Simulacije digitalno upravljanog silaznog pretvarača s dvostrukom frekvencijom preklapanja su provedene korištenjem MATLAB / Simulink-a. Eksperimentalni rezultati su prikazani kako bi se demonstrirala efikasnost regulatora korištenjem LabVIEW-a i kartice za prikupljanje podataka (NI -9221).

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LabVIEW Implementation of an Auto-tuning PID Regulator via Grey-predictor

Cited by 11 publications

References 6 publications

Implementation of Robust Prediction Observer Controller for DC-DC Converter

Implementation of Robust Prediction Observer Controller for DC-DC Converter

Time Domain Based Digital Controller for Buck-Boost Converter

Development of Robust Discrete controller for Double Frequency Buck converter

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