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

提高电能质量和安全运行的多个并网住宅光伏（PV）系统与分布式存储，控制和功率调节系统摘要本研究的目的是开发先进的技术，以解决广泛认可的，但尚未解决的技术问题，多个住宅光伏（PV）系统时，他们被连接到电网。该方法通过采用级联多电平电路结构将本地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的电压调节能力，开发有效的储能装置模型以增强功率管理和延长寿命，并建立一个功率硬件在环测试平台，以便在使用软件仿真的系统环境下评估所开发的转换器硬件。该项目将来自不同地区的两名调查人员聚集在一个综合项目中。通过结合电力电子和储能领域的每个研究人员的互补专业知识，可以充分利用储能集成光伏系统的优势，以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的光伏系统的大规模安装;这项研究还将有助于减少电网的峰值电力需求和当地能源的智能自我管理，从而有助于未来智能电网的发展;这项研究将为其他分布式能源更多地融入电网提供有用的指导方针，从而有助于促进更大和更可靠的可再生能源市场渗透;该教育计划将有助于教育可再生能源领域的新劳动力，特别是支持当地的绿色企业，并将研究成果展示给K-12学生。

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.