In this study, a flexible control approach is presented for smart home with DES system in microgrid connection. The smart home with DES has operation capability under GC-Mode and I-Mode functions with the proposed control algorithm. The control algorithm is also developed in terms of international standards IEEE 929 and IEC 61727 for grid connection requirements. Additionally, a PLL-less control algorithm is embedded in the proposed control algorithm for the active/reactive power management and the grid synchronization. Thus, slow dynamic response and calculation burden issues in controller is avoided and the power flow capability of the grid-connected DES in smart home is enhanced. Furthermore, the coordinate transformation is fulfilled for the power flow control in the control loop via the generation of cosine and sinus functions. Besides, the mathematical formulations of the proposed control algorithm are presented in detail. To show the effectiveness of the proposed control algorithm, a smart home with a photovoltaic DES model is designed and constructed in a simulation environment. The proposed control method is tested under various operation cases such as dynamic environmental conditions, GC-Mode/I-Mode, reactive power support and voltage variations. The proposed method shows efficient performance under applications of the different operation situations. Moreover, the international requirements are satisfied for GC-Mode and I-Mode transitions.

中文翻译：

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具有并网/孤岛模式功能的微电网连接分布式供能智能家居的灵活能源管理

在这项研究中，提出了一种灵活的控制方法，用于在微电网连接中使用 DES 系统的智能家居。采用 DES 的智能家居具有 GC-Mode 和 I-Mode 功能下的操作能力以及所提出的控制算法。控制算法也是根据国际标准IEEE 929和IEC 61727开发的，以满足并网要求。此外，所提出的控制算法中嵌入了无 PLL 控制算法，用于有功/无功功率管理和电网同步。因此，避免了控制器动态响应慢和计算负担问题，增强了智能家居中并网DES的潮流能力。此外，通过生成余弦和正弦函数，实现控制环中潮流控制的坐标变换。此外，还详细介绍了所提出的控制算法的数学公式。为了展示所提出的控制算法的有效性，在仿真环境中设计并构建了具有光伏 DES 模型的智能家居。所提出的控制方法在各种操作情况下进行了测试，例如动态环境条件、GC 模式/I 模式、无功功率支持和电压变化。所提出的方法在不同操作情况的应用下显示出高效的性能。此外，GC-Mode 和 I-Mode 转换也满足国际要求。