Advances in digital parallel processing, combined with the ability of power systems to be processed by means of subsystems, provides the basis for real-time transient simulation. Simulation in real-time permits realistic testing of the behaviour of control and protection systems. This requires the addition of digital-to-analogue and analogueto-digital converters, as well as analogue signal amplifiers. The original, and at present still the dominant product on the market for the simulation of electrical power systems, is a simulator based on dedicated architecture called RTDS (Real-Time Digital Simulator). This unit practically replaced all the scale-down physical simulators and can potentially represent any size system. The development of multi-purpose parallel computing is now providing the basis for real-time simulation using standard computers instead of dedicated architectures and should eventually provide a more economical solution.

Chapter Contents:

• 13.1 Introduction
• 13.1 Introduction
• 13.2 Simulation with dedicated architectures
• 13.2 Simulation with dedicated architectures
• 13.2.1 Hardware
• 13.2.1 Hardware
• 13.2.1.1 Inter-rack communication (IRC)
• 13.2.1.1 Inter-rack communication (IRC)
• 13.2.1.2 Workstation interface (WIF) communication
• 13.2.1.2 Workstation interface (WIF) communication
• 13.2.1.3 Global Bus Hub (GBH)
• 13.2.1.3 Global Bus Hub (GBH)
• 13.2.1.4 GT ports
• 13.2.1.4 GT ports
• 13.2.2 RTDS applications
• 13.2.2 RTDS applications
• 13.2.2.1 Protective relay testing
• 13.2.2.1 Protective relay testing
• 13.2.2.2 Control system testing
• 13.2.2.2 Control system testing
• 13.3 Real-time and near real-time on standard computers
• 13.3 Real-time and near real-time on standard computers
• 13.3.1 Example of real-time test
• 13.3.1 Example of real-time test
• 13.4 Summary
• 13.4 Summary
• References
• References

Inspec keywords: digital-analogue conversion; signal processing; power amplifiers; power system transients; power system protection; power system control; power system simulation; digital signal processing chips; analogue-digital conversion

Other keywords: protection systems control; digital parallel processing; electrical power systems simulation; RTDS; digital-to-analogue converters; analogue-to-digital converters; real-time digital simulator; real-time transient simulation; DRTS; subsystems; analogue signal amplifiers; multipurpose parallel computing

Subjects: Power system protection; Amplifiers; Signal processing and detection; A/D and D/A convertors; Power engineering computing; A/D and D/A convertors; Power system control; Control of electric power systems; Digital signal processing