Industry background
The 14th Five-Year Development Plan: Accelerate the construction of transportation infrastructure, improve the service function of the road network, and improve the transportation system that meets the requirements of the market economy. Strengthen traffic safety and emergency response capacity-building, and build a resource-saving and environment-friendly transportation industry. Build green transportation, establish a scientific and technological innovation system that adapts to the development of transportation, human resources and industry management system. Establish a complete set of mechanisms for rapid response, detection, judgment, evaluation and emergency repair of traffic emergencies to improve the reliability of traffic.
The National Highway Network Plan (2013-2030) expands and adjusts the national highway network.
Carbon peak and carbon neutrality: Accelerate the construction of green transportation infrastructure.
Highway power supply and distribution system features:Strip distribution, large number of power supply and distribution stations, long distance and scattered location, high bridge-tunnel ratio; The requirements for power supply reliability are high, the power supply range is large, the operation and maintenance management is difficult, there are many types of control equipment in the tunnel, the frequency is high, and there is a high risk in the mountains or villages for a long time, and there is a lack of professionals.
Highway substations include tunnel substations, service area substations, toll station substations, box-type substations along the line, interchange hubs and other areas. It is particularly important to design a remote control and operation and maintenance management platform for power supply and distribution system that can effectively reduce the labor intensity of staff, provide work efficiency, avoid man-made accidents, and ensure the reliable operation of highways in an orderly manner.
Acrelems Integrated Energy Efficiency Solutions for Highways
System features
Real-time monitoring:The system has a friendly man-machine interface, displays the operation status of the distribution line in the form of a distribution diagram, monitors the voltage, current, power, power factor, electric energy and other electrical parameter information of each circuit in real time, and dynamically monitors the state of the circuit breaker, isolation switch, ground knife and other components of each distribution circuit, diesel generator status, diesel liquid level, UPS status, battery information, etc., as well as relevant faults, alarms and other signals.
Transformer Monitoring:Monitor transformer current, voltage, active and reactive power, power factor, load rate, three-phase winding temperature, three-phase unbalance and other data.
Power quality monitoring and managementVoltage and current steady-state monitoring, voltage transient monitoring, voltage transients, reactive power compensation, harmonic control.
Energy safe:Electrical fire monitoring, fire emergency lighting and evacuation instructions, fire equipment power monitoring,Environmental monitoring.
Reduced energy consumption:Energy consumption data analysis of highway energy consumption data, data visualization, and energy-saving indexing.
Efficient O&M:Equipment management, equipment maintenance, operation and maintenance dispatch, expert reports.
Case Study
Hezhou-Bama Expressway Du'an to Bama section of mechanical and electrical engineering.
Different microcomputer protection devices are configured for different protection objects in the power monitoring project of Duba Expressway, and the 10kV incoming cabinet is equipped with line protection devices; 0.The 4KV is equipped with a set of multi-functional meters and ACREL-2000Z power monitoring system to realize the monitoring and management of electricity consumption of each substation of the expressway. The monitoring scope is the microcomputer protection device, electric energy meter, transformer temperature controller, EPS, UPS, reactive power compensation, generator control panel, fuel tank level meter, fan soft starter and lighting controller of the substation.