Towards Latency Bypass and Scalability Maintain in Digital Substation Communication Domain with IEC 62439-3 Based...

Area of Science:

• Electrical Engineering
• Computer Networking
• Power Systems

Background:

• Parallel Redundancy Protocol (PRP) and High-Availability Seamless Redundancy (HSR) are crucial for reliable, zero-recovery communication in power substations under the IEC 61850 standard.
• Technical and economic limitations of these protocols affect substation network scalability.

Purpose of the Study:

• To theoretically analyze HSR, PRP, and their combinations to maximize nodes in substation architectures.
• To ensure compliance with IEC 61850 time constraints and IEC 62439-3 regulations.
• To improve bandwidth efficiency by preventing redundant packet circulation in RedBox and QuadBox implementations.

Main Methods:

• Theoretical analysis of HSR and PRP protocols and their combinations.
• Simulation of network architectures using OPNET Modeler.
• Evaluation of bandwidth efficiency in RedBox and QuadBox configurations.

Main Results:

• Determination of the maximum number of nodes for different substation communication architectures.
• Validation of theoretical findings through simulation.
• Identification of strategies to enhance bandwidth efficiency in combined HSR and PRP networks.

Conclusions:

• The study provides a framework for optimizing node count and performance in redundant substation networks.
• Findings offer practical insights for designing scalable and efficient power system communication infrastructures.
• Addressing packet circulation issues is key to unlocking the full potential of combined HSR and PRP protocols.