Optimal Simultaneous PWM Control for Three- Phase Dual-Active-Bridge Converters to Minimize Current Stress in the Whole Load Range

Sun, Jiahao; Qiu, Lin; Liu, Xing; Zhang, Jian; Ma, Jien; Fang, Youtong

doi:10.1109/jestpe.2020.3047400

Cited by 18 publications

(4 citation statements)

References 19 publications

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“…However, this method can result in a high circulating current, primarily when the voltage on the primary and secondary sides are unequal. Several strategies [2][3][4][5][6][7][8] to overcome this drawback have been proposed in previous studies; inner phase shifts were added to the SPS method to minimize circulating current or reduce reactive power. Reactive power elimination was initially introduced in [9]; subsequently, a reactive power regulation technique based on a triple-phase shift was proposed in [10][11][12] to minimize the circulating current.…”

Section: Introductionmentioning

confidence: 99%

“…Reactive power elimination was initially introduced in [9]; subsequently, a reactive power regulation technique based on a triple-phase shift was proposed in [10][11][12] to minimize the circulating current. However, in these methods [2][3][4][5][6][7][8][9][10][11][12], the reactive power was not directly controlled to reduce the inductor current. Instead, these approaches involved meticulous phase-shift signal selection through predefined mode transitions, complex switching table schemes, and gain selections.…”

Section: Introductionmentioning

confidence: 99%

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Reactive Power Controller for Single Phase Dual Active Bridge DC–DC Converters

Naseem,

Seok

2023

IEEE Access

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In this study, we have proposed a triple-phase shift power-level controller (TPSPC) that achieves zero reactive power generation by fundamental components in a single-phase dual active bridge (DAB) DC-DC converter. The proposed power controller efficiently controls the active and reactive powers independently. The TPSPC regulates the phase shifts between the two H-bridges and inner phase shifts within each bridge to effectively eliminate the reactive power of the fundamental components in the converter. This elimination significantly decreases the inductor current across all load conditions without requiring a multiple mode analysis for the different operational states or any overly complex control functions. Unlike dual-phase shift power-level controllers, the TPSPC uniquely manages each phase shift independently, reducing the inductor current and significantly enhancing the performance. The versatile TPSPC methodology demonstrated in this study is promising for various DAB applications, such as aerospace systems, hybrid electric vehicle charging systems, and the asynchronous interconnection of micro-grids. INDEX TERMSDual active bridge converter, power-level controller, triple-phase shift HAMID NASEEM received the B.E. and M.Tech. degrees in electrical engineering from Aligarh Muslim University, India, in 2008 and 2012, respectively. He is currently pursuing a Ph.D.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Reactive Power Controller for Single Phase Dual Active Bridge DC–DC Converters

Naseem,

Seok

2023

IEEE Access

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“…Another strategy is called selective harmonic mitigation (SHM); Moeini et al (2019) have proposed a low-switching-frequency selective harmonic current suppression PWM (SHCM-PWM) technology for a grid-connected cascaded H-bridge multilevel rectifier [22]; Moeini et al (2019) have proposed an asymmetric selective harmonic current suppression PWM (ASHCM-PWM) technology to eliminate grid voltage harmonics, which is used to improve the power quality standard of grid-connected cascaded H-bridge converters [23]; Sharifzadeh et al (2019) have proposed an improved selective harmonic suppression pulse amplitude modulation (SHM-PAM) that can eliminate all third harmonics, which can be applied to all kinds of multilevel voltage waveforms [24]; Moeini et al (2020) have proposed a low-frequency hybrid modulation technology of cascaded multilevel converters that meets the harmonic limit conditions specified in IEEE 519 2014 by using asymmetric selective harmonic current suppression [25]; and Schettino et al ( 2021) have proposed a harmonic suppression algorithm for cascaded H-bridge multilevel inverters, which takes saturation, cross coupling, spatial harmonic and iron loss effects into consideration at the same time [26]. Moreover, the strategy of current harmonic optimization (CHO) has also been studied; Tripathi et al (2017) have proposed a space-vector-based analysis method, which provides a new method for determining the optimal switching angle of high-power and high-speed motor drivers [27]; Lago et al (2018) have proposed an optimized modulation mode of multilevel converters based on CHO [28]; in order to improve the harmonic characteristics under a low modulation index, Zhou (2018) has proposed the optimal PWM method of carrier dynamic overlapping switching frequency [29]; Birda (2020) has studied the control performance of synchronous optimal PWM for automotive low-voltage electrical transmission systems composed of a two-level voltage source inverter and a built-in permanent magnet synchronous motor [30]; and Sun (2021) has proposed a theoretical derivation method to reduce the current stress of three-phase dual active bridge (3P DAB) converters in the whole load range, improve the efficiency of the converter and obtain the best synchronous PWM control scheme [31].…”

Section: Introductionmentioning

confidence: 99%

Model Prediction and Pulse Optimal Modulation of Electrically Excited Synchronous Motor at Low Switching Frequency

Li¹,

Yuan

Nai³

2022

Electronics

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In this paper, in order to improve the control performance of a high-power electrically excited synchronous motor (EESM) under low switching frequency, and to improve the poor dynamic response of the traditional selective harmonic elimination pulse width modulation (SHEPWM) strategy, an optimized pulse width modulation (PWM) pulse mode with specific harmonic elimination and good dynamic performance is studied. Based on the fast response characteristics of predictive control, it combines the rolling time domain optimization theory with SHEPWM strategy. Firstly, the stator flux linkage of EESM is taken as the tracking target, and the real-time tracking error value of flux linkage is transformed into a voltage-second product; then, the predictive rolling time domain is established, the above error voltage-second product value is optimized in this time domain and the switching angle of SHEPWM is dynamically adjusted to minimize the stator tracking error so as to realize the dynamic adjustment of EESM at low switching frequency. Through MATLAB simulation and a 50 kW experimental platform, the optimized modulation strategy proposed in this paper has been verified to have good dynamic regulation performance at low switching frequency (≈500 Hz).

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“…Among various scenarios, the dual-active-bridge (DAB) DC-DC converter is a prominent choice due to the softswitching capacity, few passive components required and high power density [3]- [5]. Compared with the single DAB, the three-phase DAB (3p-DAB) has some outstanding advantages, such as the better utilization of magnetic material of the highfrequency transformer and the smaller dc-link capacitors for the filter [6], [7]. Therefore, it attracts more and more interests from researchers.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Control of Three-Phase Dual-Active-Bridge DC-DC Converters Based on Sliding-Mode-Learning Adaline

Sun

Qiu

Liu

et al. 2021

2021 IEEE 1st International Power Electronics and Application Symposium (PEAS)

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Fast dynamic response is an important requirement for three-phase dual active bridge (3p-DAB) DC-DC converters under the varied source voltage and load resistance conditions. In order to enhance the dynamic performance of output voltage of 3p-DAB, a novel nonlinear controller, which is combined with the proportional plus derivative (PD) controller and the adaptive linear element (Adaline), is proposed in this paper. Firstly, a sliding-mode-learning strategy is presented for the Adaline to improve the robustness of adaptive learning. Meanwhile, the output of the Adaline is added to the output of PD controller for ensuring an outstanding dynamic response of output voltage with less overshoot. Furthermore, a comparison with the PI controller based on phase shift modulation is implemented by simulation tool to validate the utility and effectiveness of the proposed control scheme. Finally, experimental comparison results on a laboratory prototype are presented to further verify the theoretic analysis and the effectiveness of the proposed control method.

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Optimal Simultaneous PWM Control for Three- Phase Dual-Active-Bridge Converters to Minimize Current Stress in the Whole Load Range

Cited by 18 publications

References 19 publications

Reactive Power Controller for Single Phase Dual Active Bridge DC–DC Converters

Reactive Power Controller for Single Phase Dual Active Bridge DC–DC Converters

Model Prediction and Pulse Optimal Modulation of Electrically Excited Synchronous Motor at Low Switching Frequency

Dynamic Control of Three-Phase Dual-Active-Bridge DC-DC Converters Based on Sliding-Mode-Learning Adaline

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