Primary frequency response based rescheduling for enhancing microgrid resilience

• 作者: Liang CHE Mohammad SHAHIDEHPOUR Xinwei SHEN
• 来源期刊: 现代电力系统与清洁能源学报(英文)
• 学科: 工学
• 关键词: MICROGRID INERTIA FREQUENCY control PRIMARY FREQUENCY response RESILIENCE
• 年，卷（期）: 2019,（4）
• 页码范围: 696-704
• 页数: 9页
• 分类号: TM73

摘要

The existing microgrid operation schemes do not consider the dynamic performance of frequency in the islanded operation of microgrids.When an islanded microgrid encounters a disturbance,the sudden power mismatch could impose security risks or even a system collapse.To address such a challenge,this paper proposes the primary frequency response rescheduling(PFRR)approach.For a certain operation interval,the PFRR will optimally reschedule the distributed generators(DGs)with non-zero mechanical inertia and adjust the battery power.And the objective is to limit the rate-of-change-of-frequency(ROCOF)and to maintain the post-disturbance frequency nadir above a prescribed threshold.The effectiveness of the proposed strategy is verified by a case study on the IEEE 123-node test feeder system and the timedomain simulation in MATLAB Simulink.