330-bus HVAC Network

Introduction
This model demonstrates the capability of eMEGAsim to simulate large-scale power systems in real-time across multiple targets. A large 500 kV transmission network consisting of 330 3-phase buses is modeled and simulated.

Model description
The power system in this model is a 500 kV 60Hz network, consisting of 330 3-phase buses, 517 transmission lines (ARTEMiS distributed parameter line model), 42 generation plants and one swing bus, and 90 loads. Each plant is simulated as one combined synchronous machine (SM) with turbine and governor, excitation system, and power system stabilizer, connected to grid through a 3-phase 2-winding step-up transformer. The swing bus is simulated as an ideal voltage source connected to the bus through equivalent impedance. In each load bus, the load is simulated as a combined load of three-phase series RLC.

This entire system is decoupled into 18 zones and each zone is simulated on one subsystem. All generator controllers are simulated in a separate control subsystem. In real time, the 19 subsystems are simulated on 19 CPUs across 3 eMEGAsim targets. Signals are communicated between the targets through the use of a low-latency Dolphin PCIexpress connection.

Phenomena
This model can be used to study typical power system phenomena of steady state and electromechanical/electromagnetic transients. Four types of fault, namely bus grounding, line grounding, line open, and generator loss, can be applied to the system. For different faults, one-, two-, or three-phase fault can be selected. Other phenomena, such as system stability, islanding, and resonance, can be studied and validated with this model.

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