Research on distributed energy resources operation and control information model based on IEC 61850

INTRODUCTION: High-ratio distributed energy resources (DERs) impact distribution network operation and require effective scheduling. IEC 61850 7-420 defines a DER model, but massive small/medium DERs in low-voltage networks hinder station-area aggregated management. OBJECTIVES: Enable aggregated management, dynamic scheduling of small/medium DERs and ensure DER data security. METHODS: 1. Analyze station-area structure and information needs via cluster control 2.Establish a general information model of DER equipment. 3.Build a new communication security control logical node 4.Realize the source-side dynamic conversion of inverter data RESULTS: Key results: 1) IEC 61850-based DER scheduling model; 2) DER data security logical node; 3) Inverter data protocol conversion. CONCLUSION: The proposed model, node and method resolve core DER management issues, providing a feasible distribution network scheduling solution.