Study of VSC-HVDC connected to passive network discrete model and its control strategies

The discrete mathematical model VSC-HVDC system in dq reference frame is derived and discrete controllers are designed for transmitting power to passive network via VSC-HVDC system. According to the discretely steady mathematical model of the converter, a constant DC voltage and constant reactive po...

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Published inDianli Xitong Baohu yu Kongzhi Vol. 40; no. 4; pp. 37 - 42
Main Authors Yang, Hao, Zhang, Nan, Ye, Ming-Jia
Format Journal Article
LanguageChinese
Published 16.02.2012
Subjects
Computer simulation
Controllers
Electric converters
Electric potential
Mathematical models
Networks
Strategy
Voltage
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Summary:The discrete mathematical model VSC-HVDC system in dq reference frame is derived and discrete controllers are designed for transmitting power to passive network via VSC-HVDC system. According to the discretely steady mathematical model of the converter, a constant DC voltage and constant reactive power controller is used in the rectifier-side; a constant AC voltage controller is used in the inverter-side to control the AC bus voltage. The VSC-HVDC connected to passive network digital simulation model is set up by the electromagnetic transient simulation software PACAD/EMTDC. Simulation results, in the case of various engineering, verify that the designed discrete model is correct and the control strategy is effective.
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ISSN:1674-3415