Power Management Strategy Based on Virtual Inertia for DC Microgrids
| Autor: | Josep M. Guerrero, Joao Pedro Carvalho Silveira, Juan C. Vasquez, Tarcio Andre dos Santos Barros, Ernesto Ruppert Filho, Pedro Jose dos Santos Neto |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Power management
Computer science business.industry 020208 electrical & electronic engineering energy storage system Electrical engineering 02 engineering and technology grid-connected mode power management strategy Energy storage DC-BUS Power (physics) State of charge virtual inertia Distributed generation 0202 electrical engineering electronic engineering information engineering Inverter Voltage regulation Microgrid DC microgrid Electrical and Electronic Engineering business Voltage source inverter |
| Zdroj: | Neto, P J D S, Barros, T A D S, Silveira, J P C, Filho, E R, Vasquez, J C & Guerrero, J M 2020, ' Power Management Strategy Based on Virtual Inertia for DC Microgrids ', IEEE Transactions on Power Electronics, vol. 35, no. 11, 9069316, pp. 12472-12485 . https://doi.org/10.1109/TPEL.2020.2986283 |
| DOI: | 10.1109/TPEL.2020.2986283 |
| Popis: | This article presents a power management strategy (PMS) to control the power flow in a dc microgrid operating in the grid-connected mode. The microgrid model is composed of the ac utility grid interfaced with a voltage source inverter operating as a grid-forming converter (VSC), an energy storage system (ESS) formed by a battery bank and a bidirectional dc-dc converter operating as a grid-supporting unit, a distributed generation acting as a grid-feeding unit, and the customer loads with strict voltage regulation. The power management technique applies a virtual inertia concept together with a state of charge-based management function to regulate the charging and discharging process of the battery bank according to the dc microgrid power flow. Thus, high-rate peaks of power are avoided, which improves the ESS life cycle. With the proposed PMS, an autonomous power flow is achieved inside the dc microgrid, while the ac utility grid focuses exclusively upon forming the dc bus and processing the surplus or shortage of power. In addition, the proposed strategy simplifies the communication link between the grid inverter and the ESS, since the VSC power is the sole information exchanged. The experimental results show that the proposed PMS is reliable, leading to high ESS performance and power flow control within the dc microgrid, without degrading the dc bus voltage. |
| Databáze: | OpenAIRE |
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