Complementary PID Controller to Passivity-Based Nonlinear Control of Boost Converters With Inductor Resistance

Son, Young Ik; Kim, In Hyuk

doi:10.1109/tcst.2011.2134099

Cited by 98 publications

(79 citation statements)

References 23 publications

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“…Due to the small resistance r, current i is limited slightly below i max from (15). To overcome this issue, w min can be selected as w min = E imax − r instead of (14), however (14) is preferred since the current limitation is still guaranteed and the controller does not require the value of r, which might not be accurately known. Note that the ISS and the current-limiting property are guaranteed independently from the output voltage dynamics or the load, which is a unique property of the proposed controller.…”

Section: As a Result If Initiallymentioning

confidence: 99%

“…Passivity-based controllers have been effectively applied to dc/dc converters supported by a rigorous proof of stability [14], and are often combined with the traditional PI control [15]. However, most of the existing control methods for dc/dc converters require accurate knowledge of the converter parameters (inductance, capacitance) or the load to guarantee nonlinear stability, which can change during the operation.…”

Section: Introductionmentioning

confidence: 99%

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Current-Limiting DC/DC Power Converters

Konstantopoulos

Zhong

2019

IEEE Trans. Contr. Syst. Technol.

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Abstract-A new nonlinear control framework that guarantees the desired regulation (voltage, current or power) with an inherent current-limiting capability for different types of dc/dc power converters is presented in this paper. This framework is based on the idea of applying a virtual resistance in series with the inductor of the converter, which changes according to nonlinear dynamics that depend on the control task. Without requiring any knowledge of the converter inductance, capacitance or the load, the controller structure is appropriately formulated for each power electronic system based on the nonlinear model of the converter. Using input-to-state stability theory, it is proven that the inductor current remains below a maximum value at all times, even during transients, independently from load and input voltage variations. This offers an inherent current-limiting property of the converter under faults, input voltage sags and unrealistic power demands without the need of external protection mechanisms, saturation units or current limiters. Extensive simulation and experimental results validate the effectiveness of the proposed control scheme and its current-limiting property, with comparison to traditional control strategies.

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Section: As a Result If Initiallymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Current-Limiting DC/DC Power Converters

Konstantopoulos

Zhong

2019

IEEE Trans. Contr. Syst. Technol.

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“…control law that uses the high-pass-filtered inductor current and does not require knowledge of the reference current, which is load dependent for a desired output voltage. A complementary proportional-integral-differential (PID) controller to the PD-PBC has been designed for removing the steady state error owing to the parasitic resistance [8].Digitally controlled dc-dc converter the output voltageregulationis circumscribed of the within comparative narrow ranges ofthe input voltage and the load, and that increasing the integral gain of the digital control circuit to extendthe regulation range, will lead to deterioration in the dynamic characteristics ofthe converter [10].Derivative term of conventional PID controller injects noise in the feedback loop due to the series resistance and equivalent series inductance (ESR, ESL) of the output capacitor.…”

Section: Introductionmentioning

confidence: 99%

http://sphinxsai.com/2018/ch_vol11_no4/1/(63-70)V11N04CT.pdf

2018

IJCTR

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“…Based on this model, several nonlinear control methods have been designed to guarantee the stability of the closedloop system [15], [16], [5], [17]. Based on the Hamiltonian structure of the converter model, passivity-based controllers have been effectively applied to achieve accurate output voltage regulation with a rigorous proof of stability [2], [18]. However, most of the existing control methods for dc/dc converters require accurate knowledge of the converter parameters (inductance, capacitance) or the load, which can change during the operation.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear control of dc/dc power converters with inherent current and power limitation

Konstantopoulos

Zhong

2016

2016 24th Mediterranean Conference on Control and Automation (MED)

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Abstract-A nonlinear controller with an inherent currentlimiting capability is presented in this paper for different types of dc/dc power converters (boost, buck-boost). The proposed controller is based on the idea of applying a dynamic virtual resistance in series with the inductor of the converter, which varies according to a nonlinear dynamical system. It is shown that the proposed approach acts independently from the converter parameters (inductance, capacitance) or the load and has a generic structure that can be used to achieve different regulation scenarios, e.g. voltage, current or power regulation. Based on the nonlinear model of the boost and the buck-boost converter, it is analytically proven that the inductor current remains always bounded below a given maximum value using input-to-state stability theory under a suitable choice of the controller parameters. Hence, the proposed control strategy offers an inherent protection property since the power of the converter is limited below a given value during transients or unrealistic power demands. Simulation results for both types of dc/dc converters are presented to verify the desired controller performance.

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Complementary PID Controller to Passivity-Based Nonlinear Control of Boost Converters With Inductor Resistance

Cited by 98 publications

References 23 publications

Current-Limiting DC/DC Power Converters

Current-Limiting DC/DC Power Converters

http://sphinxsai.com/2018/ch_vol11_no4/1/(63-70)V11N04CT.pdf

Nonlinear control of dc/dc power converters with inherent current and power limitation

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