Abstract Grid integration of photovoltaic (PV) system with a hybrid energy storage can help not only in increasing more penetration of PV system into the network but also in improving the power system dynamics and control in addition to helping the demand side management. In this work, a PV system with a hybrid energy storage including a battery array and a super capacitor bank is going to work as an active generator with innovative load management and power flow control strategies for managing the active power demand locally considering the grid constraints. This work proposes an architecture for a PV based active generator, which can provide active power in controlled manner while maintaining the frequency stability within the power grid. With the proposed architecture and innovative control strategies, the load demand to the grid can be effectively reduced as the PV generated power can be maximally utilized locally and the power fluctuations can be compensated using the embedded energy storage. The power flow is managed using the hierarchical approach with the state-flow and droop characteristics as a finite state machine.

中文翻译：

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并网光伏有源发电机内的功率流管理控制器作为有限状态机使用具有下垂特性的分层方法

摘要 光伏（PV）系统与混合储能的并网不仅有助于提高光伏系统在网络中的渗透率，而且除了有助于需求侧管理外，还有助于改善电力系统的动态和控制。在这项工作中，具有混合储能（包括电池阵列和超级电容器组）的光伏系统将作为有源发电机工作，具有创新的负载管理和潮流控制策略，用于在考虑电网约束的情况下在本地管理有功功率需求。这项工作提出了一种基于 PV 的有源发电机的架构，它可以以受控方式提供有功功率，同时保持电网内的频率稳定性。通过提出的架构和创新的控制策略，由于可以在本地最大限度地利用光伏发电，并且可以使用嵌入式储能来补偿功率波动，因此可以有效降低对电网的负载需求。功率流使用分层方法进行管理，状态流和下垂特性作为有限状态机。