Improved output feedback controller design for the super‐lift re‐lift Luo converter

Jiang, Wentao; Chincholkar, Satyajit Hemant; Chan, Chok-You

doi:10.1049/iet-pel.2016.0395

Cited by 24 publications

(18 citation statements)

References 26 publications

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“…According to the Routh-Hurwitz stability criterion, system (12) is asymptotically stable if and only if all the coefficients of the characteristic polynomial (15), namely a i i = 0, …, 4 , and the first column of the Routh table (16), namely b 1 , c 1 , d 1 and e 1 , are greater than zero. Since all a i i = 0, …, 4 , b 1 , c 1 , d 1 and e 1 are functions of K a and K c , a system stability region can be determined in the K c − K a plane.…”

Section: Adaptive Current-mode Controller Using Input Inductor Currentmentioning

confidence: 99%

“…Since the value of this reference signal is calculated using the nominal value of the load resistance, the control law may not be used in applications where the value of the load resistance is unknown. In [14][15][16][17], several output feedback control laws for some high-order dc-dc converters have been addressed. This kind of control law has certain advantages such as no need of current sensor and a good transient response over a wide range of operating conditions.…”

Section: Introductionmentioning

confidence: 99%

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Comparative study of adaptive current‐mode controllers for a hybrid‐type high‐order boost converter

Jiang

Chincholkar

Chan

2018

IET Power Electronics

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A comparative study of two adaptive current-mode controllers for a high-order hybrid-type dc-dc boost converter is presented. The implementation of the traditional current-mode controller for this converter requires the knowledge of the nominal value of the load resistance to compute the control signal. As such, it is unable to handle systems with uncertain loads well. To address this, an adaptive law is used to estimate the load conductance in order to generate the reference current input. In this adaptive law, the derivative of the estimator is optimised as well as bounded. Moreover, the converter has two inductor currents which can be used for feedback purposes. Considering this, two adaptive current-mode controllers using the input and output inductor currents of the converter are separately designed to find the most appropriate inductor current for the implementation of the proposed controller. Finally, some simulation and experimental results comparing the performance of the adaptive controller using the output inductor current with that of the traditional current-mode controller are also presented.

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Section: Adaptive Current-mode Controller Using Input Inductor Currentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparative study of adaptive current‐mode controllers for a hybrid‐type high‐order boost converter

Jiang

Chincholkar

Chan

2018

IET Power Electronics

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“…These have been well employed in industrial districts in the last two decades for designing converters with a great voltage transfer gain. Some basic structures of the Luo‐converters based on the voltage‐lift and self‐lift techniques are introduced in References 9–12. These can perform step‐up voltage conversion only in the arithmetic progression.…”

Section: Introductionmentioning

confidence: 99%

“…The conventional dc/dc boost converters presented in References 9–30 suffer from a slow dynamic response in continuous‐conduction mode (CCM) operation, because of existence of at least a RHPZ in their dynamic transfer function. Moreover, this RHPZ moves to the right hand of the complex S‐plane, when operating point of the power converters changes.…”

Section: Introductionmentioning

confidence: 99%

Modeling and implementation of a new boost converter with elimination of right‐half ‐plan zero

Goudarzian

Khosravi

Raeisi

2020

Int Trans Electr Energ Syst

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Summary Conventional boost converters used for fuel‐cell applications suffer from a slow dynamic response, due to their non‐minimum phase nature. It is the main challengeable problem in the development of boost topologies working in continuous‐conduction mode (CCM). In order to eliminate the mentioned disadvantage, a boost converter is proposed in this article which is capable to give a high voltage gain. From viewpoint of the boosting feature, the proposed topology is more appropriate to connect a low input voltage to a higher dc voltage of load. Moreover, the duty‐cycle‐to‐output‐voltage transfer function of this converter is free from the right‐half‐plane zero (RHPZ) and therefore, its dynamics are simpler and faster compared with the classical boost converter. To cancel the RHPZ, improve the dynamic behavior and enhance the voltage transfer gain, a separate forward path is provided using a transformer and an additional capacitor in the output node for transferring the input energy to the output load during the switch‐on time interval of the power switch. For derivation of the converter model, the steady state analysis is given in details and the required equations are formulated. The transfer function expression is obtained using the averaging model of the converter and then, the description and comparisons are introduced to reveal the features and superiority of the proposed converter. Also, a laboratory set‐up of the suggested dc/dc boost converter working in CCM is built and tested.

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“…Recently, some voltage-mode controllers have been proposed for high-order boost converters [33][34][35][36]. These controllers are based on the simplified parallel-damped passivity-based approach proposed in [37].…”

Section: Introductionmentioning

confidence: 99%

Modified voltage‐mode controller for the quadratic boost converter with improved output performance

Jiang

Chincholkar

Chan

2018

IET Power Electronics

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The control of the quadratic boost converter with unknown load resistance and where only the output voltage is used for feedback purposes is addressed. In the existing voltage-mode controlled converter system, there exists a performance 'trade-off' between the transient responses after the onset of a reference input and a load disturbance due to the usage of the traditional proportional-integral control scheme. To overcome these problems, a modified voltage-mode controller is proposed. The proposed controller uses a normalised integral action in which the derivative of the integrand is bounded by a user-defined constant. The approximate stability analysis of the resultant voltage-mode controlled quadratic boost converter system is carried out to gain some insight into its closed-loop behaviour. Some simulation and experimental results comparing the performance of the proposed controller with that of the existing controller are also provided to show the improvements obtained using the proposed controller.

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Improved output feedback controller design for the super‐lift re‐lift Luo converter

Cited by 24 publications

References 26 publications

Comparative study of adaptive current‐mode controllers for a hybrid‐type high‐order boost converter

Comparative study of adaptive current‐mode controllers for a hybrid‐type high‐order boost converter

Modeling and implementation of a new boost converter with elimination of right‐half ‐plan zero

Modified voltage‐mode controller for the quadratic boost converter with improved output performance

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