This article presents a novel adaptive control architecture for—connected single-phase inverters (SPIs) that can dynamically regulate active and reactive power, thus enabling grid support functions effectively. The base controller framework is that of the active and reactive power control in the $dq$-domain. The proposed controller is based on an adaptive minimum variance framework and utilizes an online parametric identifier. The advantage of the proposed scheme is that the architecture can concurrently provide voltage support and line power balancing capability with a performance factor greater than a static proportional-integral (PI) and proportional-resonant (PR) controller. First, the controller capability is evaluated on a proof of concept aggregated power grid model or a single machine infinite bus system. Then, the tests for concurrently providing line balancing and voltage support are conducted by connecting SPIs at several locations on an unbalance three-phase IEEE 123 node distribution system model. It has been demonstrated that the proposed architecture is adaptable and performs better (3% to 5% improvement in error) when compared to static PI and PR controller during varying operating conditions.

中文翻译：

---

一种新型的基于同步旋转参考系的自适应控制架构，用于增强单相逆变器的电网支持功能

本文介绍了一种新颖的自适应控制架构——连接单相逆变器 (SPI)，它可以动态调节有功和无功功率，从而有效地实现电网支持功能。基本控制器框架是 $dq$ 域中的有功和无功功率控制框架。所提出的控制器基于自适应最小方差框架并利用在线参数标识符。所提出方案的优点是该架构可以同时提供电压支持和线路功率平衡能力，其性能因数大于静态比例积分 (PI) 和比例谐振 (PR) 控制器。首先，在概念验证聚合电网模型或单机无限总线系统上评估控制器能力。然后，同时提供线路平衡和电压支持的测试是通过在不平衡三相 IEEE 123 节点配电系统模型上的多个位置连接 SPI 来进行的。已经证明，与不同操作条件下的静态 PI 和 PR 控制器相比，所提出的架构具有适应性并且性能更好（误差改善 3% 到 5%）。