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Flexible active power control for grid-friendly photovoltaic systems2016年12月20日)


报告题目:Flexible active power control for grid-friendly photovoltaic systems
主讲人:杨永恒
时间:2016年12月20日13:45-15:45
地点:电力楼4层报告厅
人物简介:
杨永恒,丹麦奥尔堡大学能源技术系助理教授。2005年9月至2009年6月,杨博士就读于西北工业大学并取得学士学位(西北工业大学优秀毕业生)。2009年9月,杨永恒被推免至东南大学电气工程学院学习。2011年9月,杨永恒赴丹麦奥尔堡大学留学并于2014年8月获得博士学位并留校任教至今。在2013年3月至5月期间,作为访问学者,赴美国德克萨斯州农工大学(Texas A&M University)交流学习。杨博士的研究工作集中于电力电子技术、新能源及并网技术、电力电子可靠性、功率变换器谐波和抑制策略、电力传动等。到目前为止,杨博士已在国际知名SCI期刊和学术会议上发表论文逾百篇,并合著了《Periodic Control of Power Electronic Converters》。杨博士曾担任IEEE J. Emerg. Sel. Top. Power Electron.的客座副主编及SCI期刊Applied Sciences的客座主编。此外,他是IEEE电力电子学会学生与青年学者委员会委员(IEEE PELS Students and Young Professionals Committee Member),并担任该委员会国际战略主席,负责该学会学生与青年学者相关活动等。

摘要:
With an increasing installation of photovoltaic (PV) systems into the power grid, more and more fluctuating power is being injected into the grid. Nowadays, challenges like overvoltage and frequency variation have been witnessed in practical cases. Hence, grid-connection requirements for PV systems have also been revolutionizing, where the PV systems are not just an energy generation unit, but becoming more active in the grid regulations. For instance, to alleviate potential frequency variations, PV systems should be able to control its power ramp-rate and reserve certain amount of active power during operation (Delta Power Control) to contribute to the frequency regulation. Moreover, by reducing the active power production, overvoltage can be avoided during peak power production periods in sunny days. In addition, with the development of smart- and micro-grids, PV systems have been integrated more and more with energy storages, where maximizing the energy production and also coordinating the energy flow are in focus. Hence, this talk is intended to address the emerging challenges in PV systems by means of flexible active power control in order to enable a grid-friendly integration of PV systems into future mixed power grid.