Distribution Automation Network Solution
Distribution automation is a core part of smart grid. It integrates real-time data, offline data, user information, power grid structural parameters and geographic information via modern electronic, communication, computer and network technologies to form a comprehensive automatic management system. It realizes monitoring, protection, control and distribution management of power distribution systems under normal operating and fault conditions.
It plays a vital role in improving grid operation efficiency and system reliability, reducing power outage duration and frequency, accelerating power restoration, cutting operational costs and optimizing asset utilization and protection.
System Requirements
- Most communication devices are deployed outdoors, which requires strong environmental adaptability including wide temperature startup and operation, moisture and dust resistance, as well as compliance with power industry EMC standards.
- Urban core and backbone networks need routing functions for regional division, interconnection and rational IP resource allocation.
- The communication system shall support fault isolation and fast network recovery.
- The system carries various services such as remote signaling, remote control, remote video monitoring and remote regulation with different real-time requirements. QoS mechanism is required; independent dedicated channels can be configured for different services in SDH-based projects.
- Devices deployed in open environments must be equipped with sufficient security defenses against illegal intrusion and sabotage.
- Support access of devices with diverse interface types.
- Equipped with a powerful management platform to achieve real-time and convenient unified management for massive network devices.
- Easy deployment, maintenance with short MTTR and flexible capacity expansion.
- Network expansion shall not affect existing network architecture.
Selection Advantages
- Complete network solution builds hierarchical communication systems based on Layer 2 and Layer 3 industrial Ethernet switches.
- Take substations as regional backbone nodes to construct ring access networks. DT-Ring/DRP protocols ensure millisecond-level fault recovery.
- DHP protocol and dual-homing access are adopted for branch nodes to set up redundant communication links with millisecond-level recovery, featuring flexible deployment and easy expansion.
- VLAN-based redundancy protocols enable independent redundant networks and exclusive transmission channels for different services.
- Built-in security functions including SSH, SSL, SNMPv3, IEEE 802.3x, TACACS+, RADIUS and ACL effectively prevent illegal access and ensure valid data transmission.
- DIN-rail switches with built-in programmable serial server support RS232/485/422 access and multi-power input including 24VDC, 48VDC, 110VDC, 220VAC/DC.
- Graphic management platform and dedicated Kyvision network management software realize efficient unified management of all network devices.
- Wide operating temperature range from -40℃ to 85℃ with optimized heat dissipation design; IP40 and above protection grade delivers excellent dustproof performance.
- EMC Level 4 electromagnetic interference resistance adapts to harsh power industry operating environments.
- DG-P series intelligent communication gateways support multi-protocol conversion and the latest IEC 61850 communication standards.
- DG-D60 FTU is applicable to pole-mounted circuit breakers and ring main units. It complies with IEC60870-5-101/104 and DNP3.0, and supports remote maintenance and management via GPRS, optical ports and wireless communication.
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