Analysis of Mixed Inverter/Rectifier Multi-Infeed HVDC Systems

• Published in: IEEE transactions on power delivery Vol. 27; no. 3; pp. 1565 - 1573
• Main Authors: Xiuyu Chen, Gole, A. M., Minxiao Han
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.07.2012; Institute of Electrical and Electronics Engineers
• Subjects: Applied sciences; Circuit faults; Commutation failure; Convertors; Direct current networks; Electrical engineering. Electrical power engineering; Electrical machines; Electrical power engineering; Exact sciences and technology; HVDC transmission; Indexes; Inverters; multi-infeed interaction factor; multi-infeed system; Power electronics, power supplies; Power networks and lines; Power system stability; Stability analysis; transient overvoltage; voltage interaction; Voltage measurement; Performance evaluation; Inverter; multi-infeed interaction factor; Rectifier; multi-infeed system; HVDC transmission; voltage interaction; Failures; Overvoltage; Short circuit; Commutation failure; Stability limit; Converter; transient overvoltage; HVDC systems
• ISSN: 0885-8977; 1937-4208
• DOI: 10.1109/TPWRD.2012.2187356

This paper investigates interconverter interactions in multi-infeed systems that include both rectifiers and inverters. Performance indices used earlier for multi-inverter systems are extended to include the rectifier-inverter mix. These indices can be used to predict the maximum available power (MAP) and power stability limits of the converters as well as transient phenomena, such as transient overvoltages (TOV) and inverter commutation failures (CF ).The results show that the presence of a rectifier in the neighborhood of inverters is effectively similar to an increase in the inverters' short-circuit ratio in that the inverters achieve a higher MAP, are less susceptible to commutation failure, and have smaller TOV.