Non-Intrusive Efficient Localization Scheme for Medium-Voltage Line Loss
Technology Areas
Smart Sensor
R&D Approach (Independent R&D, Joint Innovation)
Independent Innovation
Pain Points and Challenges
Technical Level: Traditional algorithms are disconnected from actual loads and line parameters; intelligent algorithms require high data volume and topological integrity; distributed generation access leads to bidirectional power flow, further impacting traditional fault location logic.
Operating Condition Level: The distribution network structure is complex and variable, topology updates lag, load fluctuations are large with significant nonlinear harmonic interference, making it difficult to effectively distinguish abnormal losses from normal losses.
System Level: Multi-service system protocols are not unified, collaborative linkage mechanisms are lacking, and the main station has insufficient computing power to support real-time and efficient line loss analysis and calculation.
Cost Level: The investment in full-chain monitoring equipment and system construction is high, outdoor terminal operation and maintenance are difficult and costly, and the investment return cycle in remote areas is long.
Execution Level: On-site verification is inefficient due to geographical constraints, technical positioning results are poorly linked with operation, maintenance, and management departments, making rectification implementation difficult.
Innovation/Features
1. System Level: Metering data and load monitoring data are correlated based on topology, combined with line loss analysis algorithms to accurately locate high-loss sections.
2. Communication Level: Compatible with self-developed Wi-SUN/LoRaWAN/4G Cat.1 multiple communication technologies, adaptable to various scenarios.
3. Device Level:
3-1: Power Supply and Energy Harvesting System: Adopts CT inductive energy harvesting + supercapacitor + lithium battery hybrid power supply solution
3-2: Clock Synchronization: Built-in high-precision RTC module, supports BeiDou/GPS time synchronization, time synchronization accuracy ≤1ms
3-3: Hot-swappable Plug-and-Play: Uses split-core CT design, can be installed without power outage, deployment completed by one person within 5 minutes, significantly reducing construction costs and safety risks
3-4: Friendly Integration of New Energy: Supports reverse power flow monitoring, facilitates distributed energy consumption and coordinated management of ‘source-grid-load-storage’
Key Performance Data
Scenario-Based Applications
1: Segmented positioning of high-loss 10kV line losses.
2: Monitoring of electricity load for key large users.