Adaptive Current-Mode Control of a High Step-Up DC–DC Converter

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

doi:10.1109/tpel.2016.2628780

Cited by 57 publications

(42 citation statements)

References 25 publications

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“…The adaptive control schemes update model parameters and adjust the duty cycle in real time according to the parameter updating rules, which greatly improves the control accuracy and ensures high robustness to external disturbance. However, it is hard to achieve general application because the adaptive module is really difficult to realization [3,4]. Sliding mode control achieves discontinuous switching from one system structure to the other.…”

Section: Introductionmentioning

confidence: 99%

Current Hysteresis Control of High Step-up Current-fed DC-DC Converter for Haptic Application

Wu¹,

Huang²,

Li³

et al. 2018

Proceedings of the 2017 2nd International Conference on Electrical, Control and Automation Engineering (ECAE 2017)

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Abstract-The steady accuracy of output waveforms is a core index for judging the performance of DC-DC converter and it is mainly determined by the control scheme of DC-DC converter. This paper studied a PWM current hysteresis control scheme to improve the performance of the high step-up current-fed DC-DC converter proposed in our previous work. This control scheme treated the currents of two input inductors as control quantities, and treated the error between the practical and theoretical output voltage as feedback quantity. It calculated the reference current of input inductor by collecting the output voltage and current of the DC-DC converter, and adjusted the hysteresis band width in real time. A control system including the DC-DC converter and the current hysteresis control circuit has been presented and evaluated. The simulation results demonstrates its easy-implementation, fast response, and high steady accuracy of 97%.

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Section: Introductionmentioning

confidence: 99%

Current Hysteresis Control of High Step-up Current-fed DC-DC Converter for Haptic Application

Wu¹,

Huang²,

Li³

et al. 2018

Proceedings of the 2017 2nd International Conference on Electrical, Control and Automation Engineering (ECAE 2017)

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“…where is the converter duty-ratio, is desired steady-state value of the duty ratio adaptive current-mode controller has been proposed in [45]. A real-time estimate of the load conductance is used to generate the control signal in the proposed controller.…”

Section: Current-mode Controllermentioning

confidence: 99%

“…Although the value of the load conductance is unknown, the estimator can still provide an estimate of the load conductance to the controller. As compared to the controller given in (2.25), the adaptive current-mode controller significantly improves the converter regulation performance in the presence of load disturbances [45]. Unlike the aforementioned current-mode controllers which are designed using the time-domain method, in [46] the converter controllers are designed using the frequency-domain techniques.…”

Section: Current-mode Controllermentioning

confidence: 99%

“…Since most of the high-gain boost converters are non-minimum phase systems, it is difficult to regulate these converter systems using a single-voltage loop [45]. In order to overcome this problem, the indirect approach of control in which the output voltage is regulated via the inductor current control can be employed.…”

Section: Introductionmentioning

confidence: 99%

“…This type of controller solves the problem of the traditional current-mode controller, in that it is unable to handle systems with unknown loads, by employing an estimator to estimate the load conductance to compute the reference inductor current. The estimate is generated using an adaptive law in which the derivative of the estimator is both optimized and bounded [45]. Moreover, for the hybrid dc-dc boost converter, two inductor currents could be used for feedback purposes.…”

Section: Introductionmentioning

confidence: 99%

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Studies on the control of high-gain DC-DC boost converters

Jiang¹

Self Cite

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The traditional dc-dc boost converter has been widely applied in industrial applications. However, due to the parasitic resistance of the inductor and the serious reverse-recovery problem, the voltage gain of this converter is very limited. To solve this problem, many high voltage gain dc-dc boost converters have been proposed in the last decade. The high voltage gain dc-dc boost converters can be roughly separated as isolated converters and non-isolated converters. Since most of the isolated converters suffer from large amount of power losses caused by the leakage current problem, the non-isolated converters are more preferred in applications where electrical isolation is not necessary.

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