Transient Response Improvement of DC-DC Buck Converter by a Slope Adjustable Triangular Wave Generator

Shu, Wu; Kobori, Yasunori; Tsukiji, Nobukazu; Kobayashi, Haruo

doi:10.1587/transcom.e98.b.288

Cited by 4 publications

(4 citation statements)

References 8 publications

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“…We consider that power electronics circuits play an important role worldwide, and we have been engaged in their study with our research associates: DC-DC converter [127][128][129][130], EMI reduction [131,132], charge pump circuit [133,134,135], measurement technique [136], energy harvest [137], envelope tracking power supply (Fig. 44) [138], coupled inductor analysis (Fig.…”

Section: Power Electronics Circuitsmentioning

confidence: 99%

How the Author's Group Came Up with Ideas in Analog/Mixed-Signal Circuit and System Area

KOBAYASHI

2024

IEICE Trans. Fundamentals

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This article reviews the author's group research achievements in analog/mixed-signal circuit and system area with introduction of how they came up with the ideas. Analog/mixed-signal circuits and systems have to be designed as well-balanced in many aspects, and coming up ideas needs some experiences and discussions with researchers. It is also heavily dependent on researchers. Here, the author's group own experiences are presented as well as their research motivations.

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Section: Power Electronics Circuitsmentioning

confidence: 99%

How the Author's Group Came Up with Ideas in Analog/Mixed-Signal Circuit and System Area

KOBAYASHI

2024

IEICE Trans. Fundamentals

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“…Therefore, high transient response and slow start-time are issues in the HVDC system. To overcome these problems, some methods are proposed to reduce transient responses, as follows: Feedforward compensator on AC-to-DC converter in DC distribution system [31], the ANN embedded by machine learning on converter/inverter switching [32], triangular source signal on DC-to-DC buck converter [33], internal feed-forward [34] and [35] feed-forward compensators on DC-to-DC converter.…”

Section: Introductionmentioning

confidence: 99%

Transient response mitigation using type-2 fuzzy controller optimized by grey wolf optimizer in converter high voltage direct current

Ginarsa,

Nrartha,

Muljono

et al. 2024

IJECE

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Long high voltage direct current (HVDC) transmission link is commonly used to transmit electrical energy via land or under-sea cable. The long HVDC avoids reactive power losses (RPL) and power stability problems (PSP). On the contrary, the RPL and PSP phenomena occur in long high voltage alternative current-link (HVAC) caused by the high reactive component in the HVAC-link. However, the HVDC produces a high and slow transient current response (TCR) on the high value of the up-ramp rate. Interval type-2 fuzzy (IT2F) control on converter-side HVDC is proposed to mitigate this TCR problem. The IT2F is optimized by grey wolf optimizer (GWO) to adjust input-output IT2F parameters optimally. The performance of IT2F-GWO is assessed by the minimum value of integral time squared error (ITSE), peak overshoot, and settling time of the TCR. The IT2FC-GWO performance is validated by the performance of IT2F control that is optimized by genetic algorithm (IT2F-GA) and proportional integral (PI) controller. Simulation results show that the IT2F-GWO performs better with small ITSE, low peak overshoot, and shorter settling times than competing controllers.

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“…Transient responses of voltage/current are very important in PS and power electronic researches because these responses should be constrained to protect the systems and devices from over-voltage/current on its operation. To improve transient response, some control schemes are proposed such as: ANFIS algorithm based on additional PID-loop to improve transient voltage response in PS [43], feed-forward compensation method [44], feed-forward capacitor [45], triangular wave generator through to adjust its slope [46] for DC-DC converters and feed-forward compensation model for DC-AC converter based on space vector-pulse width modulation [47]. However, research topic of transient responses improvement in HVDC using ANFIS control scheme has not been clearly discussed.…”

Section: Introductionmentioning

confidence: 99%

Transient response improvement of direct current using supplementary control based on ANFIS for rectifier in HVDC

Ginarsa

Muljono

Nrartha

et al. 2020

IJPEDS

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Current control scheme is commonly used in high voltage direct current (HVDC) to transmit power delivery. This scheme is done by adjusting trigger angle to regulate direct current (DC) in thyristor devices. The adaptive neuro-fuzzy inference system (ANFIS) control is widely applied for start and fault operation. But, solution for transient response of DC current in HVDC system is not clearly studied before. In this paper, supplementary control (SC) based on ANFIS is proposed to improve the transient response of the current. The SC control is designed by learning-processes and SC parameters are obtained by data-training automatically. For current reference at 1.05 pu and up-ramp at 20 pu/s, maximum overshoot is achieved at 5.12% and 7.72% for the SC and proportional integral controller (PIC), respectively. When the up-ramp is increased to 28 pu/s, the maximum overshoot is achieved at 10.01% for the SC. While, the peak overshoot for the PIC is 14.28%.

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Transient Response Improvement of DC-DC Buck Converter by a Slope Adjustable Triangular Wave Generator

Cited by 4 publications

References 8 publications

How the Author's Group Came Up with Ideas in Analog/Mixed-Signal Circuit and System Area

How the Author's Group Came Up with Ideas in Analog/Mixed-Signal Circuit and System Area

Transient response mitigation using type-2 fuzzy controller optimized by grey wolf optimizer in converter high voltage direct current

Transient response improvement of direct current using supplementary control based on ANFIS for rectifier in HVDC

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