Grid Security and Stability Control System
Overview
Grid Security and Stability Control Devices
Control equipment installed in power plants or substations to ensure power system stability under major disturbances. These devices perform functions such as generator tripping, load shedding, rapid power reduction, and emergency DC power adjustment, serving as critical components of the second defense line for grid security. Comprising input/output modules, communication interfaces, measurement units, fault detection logic, and control strategy modules.
Grid Security and Stability Control Systems
Systems composed of two or more stability control devices distributed across different substations, interconnected via communication networks. They exchange operational data and execute coordinated control commands to achieve regional or wide-area grid stability.
Features
Advanced Hardware & Software Platform
- Developed based on relay protection device architecture, leveraging mature and reliable protection technology.
Rigorous Functional Validation
- Strict quality control through integration testing, system testing, and factory acceptance.
- Validated via static/dynamic simulation tests to ensure control logic aligns with design specifications.
Intelligent O&M Capabilities
- Smart Action Reporting System: Real-time incident reporting.
- Auto-Import & Verification: Enhances setting accuracy and efficiency.
- Channel Security Monitoring: Ensures secure inter-station communication.
Benefits
Millisecond-Level Fault Isolation & Recovery
Isolate fault zones instantly to prevent cascading failures and minimize outage impacts.
Cascading Failure Mitigation
Block localized faults from spreading, avoiding large-scale blackouts.
Frequency & Voltage Stability Control
Maintain real-time generation-load balance to prevent equipment damage or system collapse.
Comprehensive Product Lines & Turnkey Solution
Our complete solution addresses grid stability challenges through tailored hardware, adaptive control strategies, and seamless system interoperability, ensuring resilient power infrastructure even under extreme operational stresses.
Typical Cases
LuGu UHVDC Send-End Stability Control System
A cornerstone of Northeast China’s grid protection, this largest stability control system in the region addresses high-frequency instability risks caused by LuGu UHVDC blockages. Architecture: Two-tier master-execution station design, with 1 master station controlling 89 substations across the Northeast grid.
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