Battery energy storage systems (BESS) are storage facilities used for ancillary services, mainly to support renewable sources operation that can reach megawatts of power. As a consequence, battery packs must be associated, and power electronics are necessary to control power flow. As a consequence, battery packs must be associated, and power electronics are necessary to control power flow, among the different design alternatives for building a BESS. This paper offers an alternative for a BESS based on a new control strategy applied to a two-stage bidirectional dc–dc converter. The proposed strategy is capable of setting the power flow through voltage/current control during operation based on real-time battery conditions, extending system life (using optimum dispatchable energy) and increasing reliability and profitability. In addition, State-of-Charge and State-of-Health are monitored, in order to keep track of aging effects. Moreover, the strategy enables mixing different battery technologies with a wide range of degradation, which can be used to retrofit operational plants or even build new systems focused on second life batteries. Simulation studies are performed using Typhoon HIL604, and a prototype is presented to validate the effectiveness of the methodology of the proposed control strategy.

中文翻译：

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使用有源 DC-DC 转换器的储能电池能量管理建议

电池储能系统（BESS）是用于辅助服务的储能设施，主要支持可达到兆瓦级电力的可再生能源运行。因此，必须关联电池组，并且需要电力电子设备来控制功率流。因此，在构建BESS的不同设计方案中，必须关联电池组，并且需要电力电子设备来控制功率流. 本文基于应用于两级双向 dc-dc 转换器的新控制策略，为 BESS 提供了一种替代方案。所提出的策略能够根据实时电池状况在运行期间通过电压/电流控制来设置功率流，延长系统寿命（使用最佳可调度能量）并提高可靠性和盈利能力。此外，还监测充电状态和健康状态，以跟踪老化效应。此外，该策略能够将不同的电池技术与大范围的退化相结合，可用于改造运行中的工厂，甚至构建专注于二次电池的新系统。使用台风 HIL604 进行模拟研究，