Robust Predictive Dead-Beat Controller for Buck Converters

Weigold, Joerg; Braun, Michael

doi:10.1109/epepemc.2006.283282

Cited by 2 publications

(3 citation statements)

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“…The computation effort of the control algorithm is quite simple. Contrary to [13] it does not need a dead beat controller and a mean value controller. In consequence, the delay time has been decreased from two pulse periods to one pulse period.…”

Section: A Experimental Resultsmentioning

confidence: 89%

“…If they will be determined by a measurement of the current, the behaviour of the control system can be identified. As it was shown in [13], the duty cycle can be calculated in order to achieve a certain final value of the current , at the end of the pulse period, if the currents slopes ( ) , and ( ) , are known in advance. For this purpose (1) will be inserted into (4) and transposed to:…”

Section: Basic Ideasmentioning

confidence: 99%

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An improved adaptive current control for d.c.-d.c. converters based on current slope detection

Becker

Lannert

Braun

2010

2010 IEEE International Conference on Industrial Technology

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This paper presents a predictive one-step current control scheme for d.c.-d.c. converters with a generic RLE load. In avoidance of the parameter sensitivity of the controller, a permanent identification of the controlled system will be used, so that there is also no need of knowledge of the control parameters like the inductance, resistance and d.c.-link voltage. Only current measurement is necessary. The identification needs no additional test pulses, instead it uses the current response caused by the alternation of the switching states of the d.c.-d.c. converter with a standard pulse-width modulation (PWM). It will be shown that this control is suitable for four-quadrant operation. Furthermore it needs no superposed control circuit for the regulation of the mean value of the current.

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Section: A Experimental Resultsmentioning

confidence: 89%

Section: Basic Ideasmentioning

confidence: 99%

An improved adaptive current control for d.c.-d.c. converters based on current slope detection

Becker

Lannert

Braun

2010

2010 IEEE International Conference on Industrial Technology

Self Cite

View full text Add to dashboard Cite

show abstract

“…Unlike traditional analog methods [2][3][4][5][6][7][8][9][10], it accurately controls the average value of the inductor current with no need for a current compensator or an external ramp. In addition, while resembling the deadbeat characteristics of digital current-mode controllers [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29], the PCPC method does not suffer from computational time delay, limit cycling, and quantization and truncation errors.…”

mentioning

confidence: 99%

Self-tuned projected cross point - An improved current-mode control technique

Wan

Ferdowsi

2008

2008 IEEE Power Electronics Specialists Conference

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Self-tuned projected cross point control for power electronic converters is introduced. Projected cross point control (PCPC) combines the advantages of both analog and digital current-mode control techniques. Despite several advantages, accuracy of the PCPC method depends on the power stage inductor value.However, ferromagnetic characteristics of the inductor core material make the inductor measurement inaccurate.Furthermore, the inductor value is subject to change due to temperature variations or other environmental effects. To overcome the dependence of the PCPC method on the inductor value, selftuned PCPC approach is introduced in this paper. Unlike the conventional PCPC scheme, self-tuned PCPC method has excellent robustness against the variations of the inductor value. Hence, the average inductor current accurately follows its reference regardless of aging and temperature effects on the power stage inductor. Furthermore, the addition of the self-tuning mechanism does not interfere with the dynamic performance of the conventional PCPC method.Analytical analysis and simulation results show the superior accuracy and transient response of the self-tuned projected cross point control technique.I.

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Robust Predictive Dead-Beat Controller for Buck Converters

Cited by 2 publications

References 0 publications

An improved adaptive current control for d.c.-d.c. converters based on current slope detection

An improved adaptive current control for d.c.-d.c. converters based on current slope detection

Self-tuned projected cross point - An improved current-mode control technique

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