A SINGLE-STAGE PV-ESS GRID-CONNECTED SYSTEM BASED ON TRIPLE-PORT ENERGY ROUTING AND ITS HIGH-VOLTAGE RIDE-THROUGH SCHEME

Zhao Wei; Wang Yakun; Teng Jiaxun; Sun Xiaofeng; Zhu Yanping; Wang Baocheng

doi:10.19912/j.0254-0096.tynxb.2021-0038

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (8) : 91-95. DOI: 10.19912/j.0254-0096.tynxb.2021-0038

A SINGLE-STAGE PV-ESS GRID-CONNECTED SYSTEM BASED ON TRIPLE-PORT ENERGY ROUTING AND ITS HIGH-VOLTAGE RIDE-THROUGH SCHEME

Zhao Wei, Wang Yakun, Teng Jiaxun, Sun Xiaofeng, Zhu Yanping, Wang Baocheng

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Abstract

This paper proposed a single-stage photovoltaic grid-connected system integrated energy storage system （PV-ESS） based on three-port energy routing with high voltage ride-through capability. The maximum power point tracking （MPPT） of PV is controlled by the three-phase AC/DC converter. The multi-port energy router can flexibly access energy storage according to different operating conditions, to stabilize the photovoltaic output, which makes the system more efficient. Under the power grid high voltage fault, the DC bus voltage is raised by the energy storage device, so that the system has the ability of high voltage ride-through, and can run continuously without disconnecting the grid under the high voltage state until the fault recovery.

Key words

battery storage / smart power grid / PV power generation / energy routing / high voltage ride-through

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Zhao Wei, Wang Yakun, Teng Jiaxun, Sun Xiaofeng, Zhu Yanping, Wang Baocheng. A SINGLE-STAGE PV-ESS GRID-CONNECTED SYSTEM BASED ON TRIPLE-PORT ENERGY ROUTING AND ITS HIGH-VOLTAGE RIDE-THROUGH SCHEME[J]. Acta Energiae Solaris Sinica. 2022, 43(8): 91-95 https://doi.org/10.19912/j.0254-0096.tynxb.2021-0038

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