A ZVS-PWM Single-Phase Inverter Using a Simple ZVS-PWM Commutation Cell

Wang, Chen; Su, Ching-Hung; Jiang, Maoh-Chin; Lin, Yan-Chun

doi:10.1109/tie.2007.911925

Cited by 70 publications

(9 citation statements)

References 14 publications

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“…The ZVS and ZCS resonant circuit based AC side soft switching offers the advantage of lower device stresses but is much more complex than DC side switching [16], [17], [18]. [19] [20] satisfies the ZVS timing requirements over full load range.…”

Section: Topologies and Control Of Grid Connectedmentioning

confidence: 99%

Topologies and control of grid connected power converters

Vijayakumari

Warner

Devarajan

2014

2014 International Conference on Circuits, Power and Computing Technologies [ICCPCT-2014]

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This paper presents an overview of current control practices for three phase power converter acting as an asynchronous interface between a synchronous voltage source and a power electronic controlled voltage source. The paper starts with glimpse of the common topologies, and branches out to the control techniques from linear to non-linear, dc loops to ac loops, stationary frame to synchronous reference frame, predictive to hysteresis etc. The surveys of these controllers under faulty as well as distorted grid conditions and a few possible future trends in control were also presented as a concluding section. Keywords -Voltage source converters, voltage oriented control, direct power control, virtual flux control, synchronous and stationary rotating reference frame, predictive control.I.

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Section: Topologies and Control Of Grid Connectedmentioning

confidence: 99%

Topologies and control of grid connected power converters

Vijayakumari

Warner

Devarajan

2014

2014 International Conference on Circuits, Power and Computing Technologies [ICCPCT-2014]

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“…The basic pulse width modulation (PWM) techniques used to control MLI's are sinusoidal PWM [9] and space vector PWM (SVPWM) [10] techniques. Along with the basic MLIs, some of the advanced topologies have also come up – for example, the modified H‐bridge MLIs [11] and coupled inductor‐based MLIs [12, 13].…”

Section: Introductionmentioning

confidence: 99%

New self‐balancing 7‐level inverter with coupled inductors for 1‐φ grid‐connected renewable energy systems with voltage boosting capability

Chamarthi

Agarwal

Moursi

2020

IET Power Electronics

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In this study, a new self-balancing 7-level inverter (SB7LI) topology, suitable for interfacing the low voltage renewables with the power grid, is proposed that uses coupled inductors to generate additional levels in the output voltage. Owing to the presence of a self-balancing circuit, the voltage across the two-input DC capacitors is self-balanced by charging them in series and discharging them in parallel. The self-balancing feature of the proposed SB7LI also obviates the sensing of input DC capacitors' voltages. The SB7LI is controlled using a novel multi-sine wave pulse width modulation strategy. A significant advantage of the proposed SB7LI topology is that it uses fewer power components in comparison with traditional multi-level inverter topologies, which ensures higher power density and compact circuits. This also improves the overall efficiency of the system and reduces the cost. Further, a modified version of the SB7LI is also presented with a reduced number of power components. An additional advantage of coupled inductors is their filtering action on the output voltage/current, which reduces the overall filter requirements. SB7LI can be easily extended to an n-level, 3-φ application. The proposed SB7LI and modified SB7LI are validated through simulations in MATLAB/SIMULINK and hardware experiments on 300 W laboratory prototypes.

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“…Among many soft-switching inverters, the auxiliary resonant commutated inverter is an important type. It can be divided into auxiliary resonant commutated pole (ARCP) inverters [2][3][4][5][6][7][8][9][10][11][12] and resonant DC-link (RDCL) inverters [13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29]. The ARCP softswitching inverter topologies [6][7][8][9] have the following features: the controls of auxiliary circuit and inverter are completely independent; the main switches and the auxiliary switches can realise soft switching; the soft-switching operation of main switches is not affected by the load condition; and the resonant inductor and main power channel are separated.…”

Section: Introductionmentioning

confidence: 99%

RDCL three‐phase inverter and load adaptive commutation control

Chu

Xie

et al. 2019

IET Power Electronics

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To realise a soft-switching inverter with a simple structure, high-efficiency and low-voltage stress, a novel resonant DC-link three-phase soft-switching inverter and its load adaptive commutation control are proposed in this study. Without two bulk capacitors and coupled inductors in the commutation circuit, the analysis and calculation of the inverter are simplified. Main switches of the inverter can achieve zero-voltage zero-current turn-on and pseudo zero-voltage turn-off, and commutation switches can achieve pseudo zero-current turn-on and pseudo zero-voltage turn-off. In addition, compared with the fixed time control, the load adaptive commutation control can dynamically regulate the switching points of commutation switches in each switching period and improve the efficiency of the inverter and the DC-link voltage utilisation rate. The main switches and commutation switches have the same and fixed switching frequency, and the voltage stress of them is equal to the input DC voltage. The load adaptive commutation control, the soft-switching resonant process and the design method of inverter resonant parameters are analysed in this study. A 10 kW prototype is designed to verify the feasibility of the inverter.

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A ZVS-PWM Single-Phase Inverter Using a Simple ZVS-PWM Commutation Cell

Cited by 70 publications

References 14 publications

Topologies and control of grid connected power converters

Topologies and control of grid connected power converters

New self‐balancing 7‐level inverter with coupled inductors for 1‐φ grid‐connected renewable energy systems with voltage boosting capability

RDCL three‐phase inverter and load adaptive commutation control

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