Improving Power Quality and Safety Operation of Multiple Grid-Connected Residential Photovoltaic (PV) Systems with Distributed Storage, Control and Power Conditioning Systems

摘要采用分布式存储、控制和电力调节系统提高多户光伏并网系统的电能质量和安全运行摘要本研究的目的是开发先进的技术来解决多户光伏并网系统普遍认可但尚未解决的技术问题。该方法采用级联多级电路配置将局部储能装置集成到光伏系统中，设计控制策略以实现功率调度和增强电压调节能力，建立储能装置的有效模型以增强电源管理和延长使用寿命，并建立电源硬件在环试验台，以便在软件仿真的系统环境下对所开发的变换器硬件进行评估。智力优势：该项目将来自不同领域的两名研究人员结合在一起，形成一个完整的项目。通过结合每位研究人员在电力电子和储能领域的互补专业知识，可以充分利用储能集成光伏系统的优势，提高电网的电能质量和安全运行，这对提高住宅光伏系统的渗透率至关重要。广泛影响：开发的技术将有助于推动住宅领域光伏系统的大规模安装；该研究还将有助于降低电网的峰值电力需求，实现本地能源的智能自我管理，从而助力未来智能电网的发展；这项研究将为其他分布式能源与电网的进一步整合提供有用的指导方针，从而有助于促进更大、更可靠的可再生能源市场渗透；该教育计划将帮助培养可再生能源领域的新劳动力，特别是支持当地绿色企业，并向K-12学生展示研究成果。

Improving Power Quality and Safety Operation of Multiple Grid-Connected Residential Photovoltaic (PV) Systems with Distributed Storage, Control and Power Conditioning SystemsAbstractThe objective of this research is to develop advanced technologies to solve the widely-recognized but yet unsolved technical issues for multiple residential photovoltaic (PV) systems when they are connected to the grid. The approach is to integrate a local energy storage device to a PV system by using a cascaded multi-level circuit configuration, design control strategy to achieve both dispatching power and enhanced voltage regulation capability, develop the effective model of energy storage device to enhance the power management and increase lifetime, and build a power hardware-in-the-loop test bed so the developed converter hardware can be evaluated under a system environment emulated using software.Intellectual Merits: This project brings together two investigators from different areas in a well integrated project. By combining the complementary expertise of each investigator in power electronics and energy storage areas, the advantages of storage integrated PV systems can be fully exploited to enhance the power quality of the grid as well as the safety operation, which are essential for higher penetration of residential PV systems.Broad Impact: The developed technology will help to boost a large installation of PV systems in the residential sector; This research will also help to reduce the peak power demand of the grid and smart self-management of local energy, thus assisting in the development of future smart grids; The research will provide useful guidelines for the increased integration of other distributed energy sources into the electrical grid, therefore help promote a greater and more reliable renewable energy market penetration; The education plan will help to educate a new workforce in the renewable energy field, especially in support of local green businesses, and expose the research results to K-12 students.