An Analysis on the VSC-HVDC Contribution for the Static Voltage Stability Margin and Effective Short Circuit Ratio Enhancement in Hybrid Multi-Infeed HVDC Systems

Diego Oliveira, Gustavo C. Borges Leal, Danilo Herrera, Eduardo Galván-Díez, Juan M. Carrasco () and Mauricio Aredes
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Diego Oliveira: Electrical Engineering Department, Federal University of Rio de Janeiro, Rio de Janeiro 21941-598, Brazil
Gustavo C. Borges Leal: Electrical Engineering Department, Federal University of Rio de Janeiro, Rio de Janeiro 21941-598, Brazil
Danilo Herrera: Departamento de Tecnología Electrónica, Universidad de Sevilla, 41092 Sevilla, Spain
Eduardo Galván-Díez: Departamento de Tecnología Electrónica, Universidad de Sevilla, 41092 Sevilla, Spain
Juan M. Carrasco: Departamento de Tecnología Electrónica, Universidad de Sevilla, 41092 Sevilla, Spain
Mauricio Aredes: Electrical Engineering Department, Federal University of Rio de Janeiro, Rio de Janeiro 21941-598, Brazil

Energies, 2023, vol. 16, issue 1, 1-28

Abstract: Over the years, high voltage transmission of large energy blocks over long distances has widely developed from the Line Commutated Converter (LCC) technology. However, the continuous expansion of the AC network and the increase in renewable energy penetration leads to the weakening of Electric Power Systems (EPS), causing operational problems for the LCC-HVDC. This paper evaluates the degree of contribution of the VSC-HVDC on the LCC-HVDC dynamic performance when the infeed is in a hybrid multi-infeed HVDC system. Through a steady-state mathematical framework, the new concept of Hybrid Power Voltage Interaction Factor ( h PVIF) is proposed to assess the transient stability improvement of LCC. Additionally, this article introduces two key contributions from h PVIF: the complementary Improved Commutation Failure Immunity Index ( i CFII), as a measure of the effective short circuit enhancement, as well as the apparent line length, which emulates the line lengths adjusting the power dispatch in the VSC-HVDC. PSCAD/EMTDC TM time-domain dynamic simulations are performed to assess the indexes, and the Matlab ® software will be used to assist in mathematical operations.

Keywords: hybrid multi-infeed system (HMIF); improved commutation failure immunity index ( i CFII); hybrid power voltage interaction factor ( h PVIF) (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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