Waveform-Based Method for Fast and Accurate Identification of Subsynchronous Resonance Events

Autor(es)

Gao, Bo ^[1] ; Torquato, Ricardo ^[1] ; Xu, Wilsun ^[1] ; Freitas, Walmir ^[2]

Afiliação do(s) autor(es)

^[1] Univ Alberta, Dept Elect & Comp Engn, Edmonton, AB T6G 2R3 - Canada

^[2] Univ Estadual Campinas, Dept Syst & Energy, BR-13083852 Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: IEEE Transactions on Power Systems; v. 34, n. 5, p. 3626-3636, SEP 2019.
• Citações Web of Science: 0

Resumo

An increasing number of unstable subsynchronous resonance (SSR) has occurred for wind farms recently. These events can lead to significant loss of generation, threatening the safe operation of the system, and even damaging the generators. Accurate knowledge of SSR characteristics (SSR frequency, current magnitude, and damping) at an early stage of the event is critical for its effective mitigation. This paper proposes a method for fast and accurate identification of an SSR event and its characteristics. It takes advantage of time-stamped waveform measurements that are typically available on the terminals of series compensated transmission lines. It uses the known model of the line as a ``filter{''} to extract the SSR components. Case studies demonstrate that the proposed algorithm can accurately compute the SSR frequency, SSR current magnitude, and damping in around one SSR cycle or less. In addition to line parameters uncertainties, the method has also proven to remain robust in the presence of harmonic distortions and reduced waveform sampling rates. (AU)

• Processo FAPESP: 18/24018-0 - Metodologias para a Integração de Medições de Alta Resolução no Gerenciamento dos Sistemas Modernos de Distribuição de Energia Elétrica
• Beneficiário: Ricardo Torquato Borges
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 16/08645-9 - Pesquisas interdisciplinares em redes inteligentes de energia elétrica
• Beneficiário: João Bosco Ribeiro do Val
• Modalidade de apoio: Auxílio à Pesquisa - Temático