Abstract: As the global fossil energy (oil and coal) is approaching exhaustion, pollution is becoming more and more serious, and the climate is warming, etc., many countries and regions around the world have successively issued regulations and policies, which have promoted the development of the PV industry.
  In order to better distribute photovoltaic energy, the manufacturer measures the power generation uniformly and distributes it reasonably according to the amount used, so as to make the use of energy more reasonable.

1.Project Overview
  In the Belgian PV project, a PV metering cabinet will be installed at each project site. The customer installs Acrel ADL400 three-phase energy meter in the metering cabinet, and connects with the gateway through RS485 communication mode, and connects the uplink Ethernet to the server. Feedback the collected information to the PV system in real time.

2.ADL400 Series Din Rail Multi-function Energy Meter
  ADL400 is a smart meter designed for power supply system, industrial and mining enterprises and utilities to calculate the electricity consumption and manage the electric demand. It features the high precision, small size and simple installation. It integrates the measurement of all electrical parameters with the comprehensive electricity metering and management provides various data on previous 48 months, checks the 31st harmonic content and the total harmonic content, realizes the remote communication and the remote control with switching input and relay output and boasts the alarm output. It is fitted with RS485 communication port and adapted to MODBUS-RTU Protocol .ADL400 can be used in all kinds of control systems, SCADA systems and energy management systems. The meter meet the related technical requirements of electronic meter in the IEC62053-21standards.

3.Model Description

4. Function

5.Technical Parameters

 Figure 1 direct connect

 Figure 2 CT connect

work Topology

7.Installation Site 

8. In conclusion
  ADL400 series of multifunctional energy meters adopt DIN35mm guide rail type installationn with  small volume, it can measure electric energy and other electrical parameters, can set the clock, rate period and other parameters, high accuracy and good reliability. By RS485 communication, with the gateway, power management system to complete the networking mode. To help customers to simple, effective real-time monitoring of Photovoltaic power generation, greatly save the process of human meter reading, and visual display of all data can be users, improve management efficiency.

Bibliography
1.Solutions for enterprise micro-grid system

作者简介：
朱鹍，女，就职于安科瑞电气股份有限公司，主要研究方向为企业能源管控