一种可重构太阳能光伏并网逆变器架构，用于增强备用电源应用中的能量获取
A Reconfigurable Solar Photovoltaic Grid-Tied Inverter Architecture for Enhanced Energy Access in Backup Power Applications
摘要：
提出了一种光伏可重构并网逆变器方案。与在停电期间停止操作的传统GTI不同，RGTI被设计为在并网模式下充当常规GTI，但它被重新配置为在电网停电期间继续操作的DC-DC充电控制器。在此期间，RGTI连接到基于外部UPS的备用电力系统的电池组，以增加太阳能。在不采用与UPS的通信的情况下在离网模式下的这种操作是具有挑战性的，因为RGTI的控制必须不与UPS的电池管理系统冲突。本文讨论了这一要求的硬件和控制设计方面。提出了一种用于RGTI的电池仿真控制方案，该方案有助于RGTI与物理UPS电池并联的无缝运行，以减小其放电电流。提出了一种用于整体操作和功率管理的系统级控制方案，以处理白天太阳辐射和UPS负载的动态变化，从而使电池放电负担最小化。建议的RGTI系统的设计和操作独立于外部UPS，并且可以与任何制造商提供的UPS集成。在一个4~kVA的硬件装置上的实验结果验证了所提出的RGTI概念，其操作和控制。
英文摘要：
In this paper, a photovoltaic (PV) reconfigurable grid-tied inverter (RGTI) scheme is proposed. Unlike a conventional GTI that ceases operation during a power outage, the RGTI is designed to act as a regular GTI in the on-grid mode but it is reconfigured to function as a DC-DC charge-controller that continues operation during a grid outage. During this period, the RGTI is tied to the battery-bank of an external UPS based backup power system to augment it with solar power. Such an operation in off-grid mode without employing communication with the UPS is challenging, as the control of RGTI must not conflict with the battery management system of the UPS. The hardware and control design aspects of this requirement are discussed in this paper. A battery emulation control scheme is proposed for the RGTI that facilitates seamless functioning of the RGTI in parallel with the physical UPS battery to reduce its discharge current. A system-level control scheme for overall operation and power management is presented to handle the dynamic variations in solar irradiation and UPS loads during the day, such that the battery discharge burden is minimized. The design and operation of the proposed RGTI system are independent of the external UPS and can be integrated with an UPS supplied by any manufacturer. Experimental results on a 4~kVA hardware setup validate the proposed RGTI concept, its operation and control.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
