A voltage-mode DC-DC buck converter with digital PID controller

Wang, Chaoying; Ou, Yang-Chieh; Wu, Chih-Feng; Shiue, Muh-Tian

doi:10.1109/fskd.2015.7382315

Cited by 11 publications

(5 citation statements)

References 11 publications

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“…Therefore, the state-space averaging method can be used to establish a unified form of state equation as (3) show [19]:…”

Section: Mathematicl Description Of the Financial Systemmentioning

confidence: 99%

“…In most cases, using a PID or PI regulator as an error amplifier can increase the speed of the system and effectively suppress overshoot. Wang et al [3] introduced a digital PID controller according to the voltage error information between the feedback voltage and the reference voltage, in order to improve the phase margin of the DC-DC step-down converter and expand the system bandwidth,but there is still a problem that the PID parameters are not easy to adjust. Altinoz and Erdem [4] use the particle swarm optimization (PSO) algorithm to obtain the best PID controller parameters to adjust the voltage of the DC-DC Buck converter.…”

Section: Introductionmentioning

confidence: 99%

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Design of PID Controller Based on ELM and Its Implementation for Buck Converters

Yang

Wang

et al. 2021

Int. J. Control Autom. Syst.

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Buck converter is a kind of converter device with high efficiency, wide adjustable output voltage, small loss, small size and light weight. Its circuit has nonlinearity and will exhibit abundant nonlinear phenomena with the change of circuit parameters, resulting in unstable output voltage and being susceptible to load and external disturbances. Therefore, a control method based on Extreme Learning Machine (ELM) combined with a proportionalintegral-derivative (PID) controller is proposed in this paper and used for output voltage control of buck converter. Firstly, the mathematical model of buck converter in Continuous Conduction Mode (CCM) is established by the state space averaging method. Then the PID tuning algorithm is designed in combination with ELM, and the stability analysis of the model is carried out. Finally, the simulation experiment is carried out under different disturbances. By comparing with the open-loop control strategy, the effectiveness of the proposed ELM-PID control strategy is verified, indicating that the proposed method can achieve the stability of output voltage and good dynamic response.

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“…Therefore, the state-space averaging method can be used to establish a unified form of state equation as (3) show [19]:…”

Section: Mathematicl Description Of the Financial Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design of PID Controller Based on ELM and Its Implementation for Buck Converters

Yang

Wang

et al. 2021

Int. J. Control Autom. Syst.

View full text Add to dashboard Cite

show abstract

“…The work in [3] uses digital PID controller to control the voltage level of a DC/DC buck converter. The work in [4] uses other converter topology with cascode structure to improve the output gain of the converter.…”

Section: Related Work and Contributionmentioning

confidence: 99%

Adaptive Interpolated PI Gain Scheduling for Voltage Regulator in Solar Charge Controller Applications

et al. 2018

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Buck-boost converter is one of the dc-dc convert0.er that can both increase and decrease the value of output voltage. Due to its wide output range, this converter is very appropriate for using in solar-based electric generation systems. To control the stable expected output voltage, this converter is usually integrated with feedback control. One of the old and widely used control techniques is PID control. However, conventional PID controls still have deficiencies, because the parameters of PID parameters are static so that for wide ranges of input or load will provide different transient responses. This paper will present a new PI control with an adaptive interpolated PI gain scheduling technique. The proposed control algorithm has been embedded and implemented in real microcontroller hardware and its performance has been tested under load change conditions, and the input voltage changes within the range of 8-22 V. Testing results show that PI control with gain scheduling technique produces better transient response compared to the traditional fixed PI controller. The time domain transient response measurements, under load changes within the range of 20-1000 Ohm, present that the proposed control algorithm give settling time value below 1.0 second, rise-time below 0.436 second, maximum overshoot below 0.5%, and the steady-state error below 0.3 V.

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“…Sistem Kendali PID telah banyak dan paling lazim digunakan untuk mengendalikan Konverter DC/DC [4,5,6,7,8]. Kontroler PID ini dapat direalisasikan secara analog atau pun secara digital [5].…”

Section: Hasil Perancanganunclassified

Parameterisasi Kendali PID pada Konverter DC/DC Penurun Tegangan dengan Kriteria Domain Waktu dan Efisiensi Daya

Affandy

Samman

Sadjad

2017

jpe

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AbstrakPaper ini menampilkan pemodelan, rancangan dan hasil simulasi rangkaian konverter DC/DC tipe penurun tegangan, dengan pecobaan kendali menggunakan kontroler P, PI, dan PD terkompensasi. Sistem dirancang untuk tujuan penyediaan saluran DC di rumah-rumah modern masa depan yang dilengkapi dengan saluran DC selain saluran AC. Hasil rancangan menunjukkan kendali P, PI, dan PD yang digunakan untuk mempertahankan tegangan luaran DC dari converter telah memberikan kinerja yang cukup baik. Walaupun antara menggunakan kendali P, PI, dan PD tidak memiliki perbedaan yang sangat signifikan terhadap pengendalian pada beban RL dan RC. Penggunaan penggabungan kendali PI dan PD terlihat mampu meningkatkan nilai Efisiensi Daya yang disalurkan dari pada hanya menggunakan kendali P saja. Nilai Efisiensi yang didapatkan PI yaitu 84.72 dan PD yaitu 84.616. Sedangkan dengan hanya menggunakan kendali P nilai efisinsi terbaik yang didapatkan yaitu 84.283. Nilai-nilai parameter pengendali yang diperoleh antara lain KP= 8191, KI=63, dan KD=7x10 -6 . Secara umum perubahan parameter KP dan KI tidak begitu memberikan perubahan kinerja yang signifikan. Sedangkan nilai KD mesti ditentukan secara hati-hati agar dapat memberikan kinerja yang lebih baik. Kontroler PID juga secara umum masih mampu mengendalikan level tegangan DC pada batas yang dapat diterima pada pengujian dengan berbagai nilai beban resistive. Abstract PID Control Parameterisation on Voltage Regulator DC/DC Converter with Time Domain and Power EfficiencyCriteria. This paper presents modeling, concepts and simulation DC/DC buck converter, using P, PI, and PD compensated controllers. Operating system for the purpose of providing DC in future modern homes equipped with DC channels other than AC channels. The result of P, PI, and PD control commands used to maintain the DC output of the converter has performed well. The equations between using P, PI, and PD controls do not have a very significant difference to controls in RL and RC. The use of PI and PD coupling controls is seen to increase the carrying capacity of power supplied rather than using only P controls. Efficiency value obtained by PI is 84.72 and PD is 84.616. Using only the best P efficient control is 84,283. Other parameter parameters are KP = 8191, KI = 63, and KD = 7x10 -6 . Generally, the change of KP and KI parameters does not give significant performance change. While KD must be determined carefully in order to provide better performance. PID controllers are also generally still capable of voltage levels. At various acceptable tests with various resistive values.

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A voltage-mode DC-DC buck converter with digital PID controller

Cited by 11 publications

References 11 publications

Design of PID Controller Based on ELM and Its Implementation for Buck Converters

Design of PID Controller Based on ELM and Its Implementation for Buck Converters

Adaptive Interpolated PI Gain Scheduling for Voltage Regulator in Solar Charge Controller Applications

Parameterisasi Kendali PID pada Konverter DC/DC Penurun Tegangan dengan Kriteria Domain Waktu dan Efisiensi Daya

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