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- W4378194786 abstract "240 <inline-formula xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink><tex-math notation=LaTeX>$^circ$</tex-math></inline-formula> -Clamped Space Vector PWM (240CPWM) is a lowest switching loss PWM method in cascaded architecture of DC-DC stage followed by DC-AC stage that reduces the switching loss by 85% in the DC-AC stage at unity power factor as compared to conventional space vector PWM (CSVPWM). 240CPWM requires unique six-pulse dynamically varying DC link voltage instead of constant DC link voltage which introduces low frequency harmonics predominantly around six times the fundamental frequency ( <inline-formula xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink><tex-math notation=LaTeX>$6f_{1}$</tex-math></inline-formula> ). These low frequency harmonics distort the input DC current and AC line currents. Moreover, they change the operating point of maximum power point tracking (MPPT), reducing the efficiency of grid-connected Photovoltaic (PV) converter. In this article, three topologies are proposed to reduce the low frequency ripple in input DC current and AC line currents in three-phase grid-connected PV systems with 240CPWM. A three-phase 1.5 kW Silicon Carbide based hardware prototype in grid-connected mode is developed to validate the performance of the proposed topologies. Experimental results show that the maximum reduction of 68.8% in ( <inline-formula xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink><tex-math notation=LaTeX>$6f_{1}$</tex-math></inline-formula> ) harmonic component in DC input current is achieved in active filter based Topology II without any significant detrimental effect on THD in AC line currents and inverter efficiency as compared to standard topology." @default.
- W4378194786 created "2023-05-26" @default.
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- W4378194786 date "2023-01-01" @default.
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- W4378194786 title "Low Frequency Ripple Reduction in Input DC Current and AC Line Currents With 240$^{circ }$ Clamped Space Vector PWM in Grid-Connected Photovoltaic Converters" @default.
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- W4378194786 doi "https://doi.org/10.1109/ojpel.2023.3279924" @default.
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