Multi-DSP and -FPGA-Based Fully Digital Control System for Cascaded Multilevel Converters Used in FACTS Applications
IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS, cilt.8, sa.3, ss.511-527, 2012 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 8 Sayı: 3
- Basım Tarihi: 2012
- Doi Numarası: 10.1109/tii.2012.2194160
- Dergi Adı: IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.511-527
- Anahtar Kelimeler: Cascaded multilevel converter (CMC), digital controller, digital signal processor (DSP), field-programmable gate array (FPGA), transmission type static synchronous compensator (T-STATCOM), SPACE-VECTOR PWM, INDUSTRIAL CONTROL, DESIGN
- Orta Doğu Teknik Üniversitesi Adresli: Evet
Özet
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.