IOT News

A certain island currently relies on an early-built power supply line for its electricity needs. This single-source supply model is vulnerable to extreme weather events such as typhoons and heavy rainfall, which often prevent timely repairs, resulting in prolonged power restoration periods and low efficiency. This situation has seriously constrained the development of local specialty industries, including ecotourism and aquaculture.

To address this, a new photovoltaic (PV) and energy storage system has been added to the island. PV arrays are installed on large building rooftops to enable self-consumption of solar power, while energy storage stations are deployed across the island to provide temporary power during grid faults or unplanned outages. This enhances both the diversity and stability of energy supply, forming an island-wide microgrid system. As part of this initiative, a PV-storage management system is required, with WideIOT providing efficient and reliable technical support.

By deploying energy data acquisition gateways at both the PV and storage sites, the system connects to PV inverters, battery management systems (BMS), smart meters, cameras, anti-reverse power meters, and "Four-Reach" controllers (covering measurable, reportable, controllable, and adjustable capabilities). It collects real-time key metrics such as generation power, battery state of charge (SOC), load consumption, and operating temperatures. Data is then transmitted via 5G/4G networks to a remote monitoring platform, enabling real-time supervision, alerting, management, control, and data analysis of PV and storage equipment. This improves operational efficiency and management, while enabling rapid response to faults and anomalies.

Key Functions

1. Data Visualization: Data is uploaded to the platform and displayed on a visual dashboard, showing real-time location and operational parameters of all stations—including inverter DC/AC side data, charge/discharge curves, and load consumption patterns over time.

2. Multi-Rule Alerts: Supports threshold-based alerts (e.g., overtemperature, low SOC), rate-of-change alerts (e.g., sudden power drops), and equipment fault notifications. Alerts can be pushed to maintenance staff via WeChat, SMS, or email.

3. Automated Maintenance Work Orders: In the event of equipment faults or scheduled inspections, the system automatically creates work orders and assigns nearby personnel. Results can be uploaded and archived, and maintenance reports are generated to support decision-making.

4. Performance Reports: Daily, weekly, and monthly reports are generated on metrics such as self-consumption rate, surplus energy storage, and equivalent power reliability (reduction in outage duration). These help uate site performance, fault distribution, and guide informed planning.

5. Remote Control: Commands can be sent remotely to the "Four-Reach" controllers to adjust inverter output, and I/O commands can be issued to control circuit breakers. All operations are logged for traceability.

6. Flexible Connectivity: The gateway supports multiple serial and Ethernet ports, and is compatible with protocols including Modbus, DLT645, IEC 101/103/104, and IEC 61850. It offers flexible network access via 5G, 4G, Wi-Fi, or Ethernet.