Thyristor-based SVC

The real-time simulation of an SVC (static VAR compensator) was made on 2 independent RT�LAB simulators. The plant part, which includes the main power system source, transformer, a thyristor controlled reactor, and 3–thyristor, switched capacitor banks, was made on a dual-Xeon-based RT�LAB simulator. The controller part, which includes a PI compensator, synchronization unit, and thyristor firing pulse units, was made with a Pentium-M-based RT�LAB simulator. Both simulators were equipped with the necessary I/O to interface to each other: The controller had analog input to read the power system voltages and digital output to fire the thyristor. The plant simulator had complimentary I/O (analog output and digital inputs).

The demo implements a special MOV model to demonstrate capacitor protection, and uses stublines to effectively and accurately decouple each TSC (Thyristor Switched Capacitor) bank, allowing full precomputation of circuit modes by ARTEMIS.

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