Multi-DSP and -FPGA-Based Fully Digital Control System for Cascaded Multilevel Converters Used in FACTS Applications

Date

2012-08-01

Author

Atalik, Tevhid
Deniz, Mustafa
Koc, Erkan
Gercek, Cem Ozgur
Gultekin, Burhan
Ermiş, Muammer
ÇADIRCI, IŞIK

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In this paper, a fully digital controller based on multiple digital signal processor (DSP) and field-programmable gate array (FPGA) boards has been proposed for parallel-operated cascaded multilevel converters (CMC) used in flexible AC transmission system (FACTS) applications. The proposed system is composed of a DSP-based master controller in combination with a multiple number of slave DSP boards, FPGA boards, microcontrollers, a programmable logic controller (PLC), an industrial computer, and their peripherals in interaction. Inter-communication of these digital controllers is achieved mainly through fiber-optic links, via synchronous serial data link wherever a high-speed, full duplex communication is needed, and via asynchronous serial communication interface wherever relatively slow communication speed is required. The proposed fully-digital control system has been implemented on a sample 11-level CMC-based 154-kV, +/-50-MVAr transmission type static synchronous compensator (T-STATCOM). Field test results have shown that the proposed fully digital control system provides good transient response and steady-state characteristics for the oveall system including protection and monitoring functions.

Subject Keywords

Cascaded Multilevel Converter (CMC), Digital controller, Digital Signal Processor (DSP), Field-Programmable Gate Array (FPGA), Transmission Type Static Synchronous Compensator (T-STATCOM)

URI

https://hdl.handle.net/11511/31116

Journal

IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS

DOI

https://doi.org/10.1109/tii.2012.2194160

Collections

Graduate School of Natural and Applied Sciences, Article

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Citation Formats

T. Atalik et al., “Multi-DSP and -FPGA-Based Fully Digital Control System for Cascaded Multilevel Converters Used in FACTS Applications,” IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS, pp. 511–527, 2012, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/31116.