Development of new passive anti-islanding method for distributed generators

分布式发电机无源防孤岛新型方法的研制

• 批准号: 372128-2009
• 负责人: Chang, Liuchen
• 金额: $ 2.62万
• 依托单位: University of New Brunswick
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Group
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=572858
• 关键词: Development; new; passive; anti; islanding

There is a growing interest in adding distributed generators (DGs) that are driven by renewable energy resources such as wind and solar energy to the electric power systems (EPS). However, adding a large numbers of DGs to the EPS may compromise the stability and reliability of the EPS. DGs operating as islands are not permitted by utilities as a result of risks to safety and equipment. Anti-islanding is a critically important component of the interconnection system between a DG and the EPS, and is also a challenging technical problem that has been recognized as one of the technical barriers preventing widespread deployment of DGs. Although numerous anti-islanding methods have been investigated, a universal anti-islanding method that possesses adequate robustness and reliability is yet to be developed. The objective of the proposed research is to develop a methodology that allows the best attributes of existing schemes as well as new schemes to be seamlessly incorporated into an innovative classification model that identifies whether an island condition exists or not. The proposed technique will be universal and hence, applicable for DGs that interface directly to the EPS through rotary generators and also for DGs that interface to the EPS through power electronic converters. The success of this project will enable higher penetration of renewable energy in electricity markets and facilitate greenhouse gas reduction and economic development. The research will proceed along a timeline with well defined tasks that include: developing a simulation model, developing a database of training events, developing and validating a classification model, performing a comparative analysis with other approaches, constructing an interconnection apparatus and conducting field verification tests. The interconnection apparatus will be tested on both a photovoltaic DG installation (power converter based) and a wind turbine DG installation (induction generator based) that reside in our research facilities. This project will provide research and laboratory based training for two Ph.D. students and one M.Sc.E. student with skills that are in high demand by Canadian industry.

人们对在电力系统（EPS）中增加由风能和太阳能等可再生能源驱动的分布式发电机（dg）越来越感兴趣。如果在EPS中添加过多的dg，可能会影响EPS的稳定性和可靠性。由于存在安全和设备风险，公用事业公司不允许将DGs作为孤岛运行。防孤岛是DG与EPS互连系统的重要组成部分，也是一个具有挑战性的技术问题，被认为是阻碍DG广泛部署的技术障碍之一。