Public Measurement and Control Screens: Achieving Efficient Management of Photovoltaic Power Plant Monitoring Systems
On March 19, 2025, Shanghai Changgao Jibao Technology introduced its photovoltaic public measurement and control screen, which plays a pivotal role as the “nervous system” in photovoltaic power plants. This system integrates three core modules: environmental monitoring, inverter communication, and power measurement, effectively addressing the issue of data silos typically found in traditional photovoltaic systems.
For instance, in a 50MW ground-mounted power plant, the system can collect real-time data on 23 environmental parameters, including irradiance and module temperature. Utilizing this real-time data, along with intelligent algorithms, the accuracy of power generation predictions has increased to 92%. This improvement allows operational staff to better understand power generation conditions and prepare maintenance in advance, enhancing maintenance response speed by 60% and significantly improving operational efficiency and management standards.
Remote Monitoring System for Distributed Photovoltaics
Distributed photovoltaics, especially rooftop installations, often face challenges with decentralized management. To tackle this issue, the public measurement and control screen employs an innovative dual-mode communication architecture utilizing 4G/5G. In a project at an industrial park in Zhejiang, this architecture has proven highly beneficial. Maintenance personnel can access real-time power generation data from 18 rooftops via a mobile app at any time and place. When anomalies arise, the time taken to locate these issues has been drastically reduced from 2 hours to just 10 minutes, significantly boosting troubleshooting efficiency. Additionally, the system’s unique shadow analysis function provides accurate assessments of how building obstructions affect photovoltaic output and has successfully mitigated annual power generation losses of approximately 15% caused by shading, thereby enhancing the efficiency of distributed photovoltaics.
Key Technologies for Coordinated Control of Energy Storage Systems
In scenarios involving the integration of solar and storage systems, the public measurement and control screen demonstrates its millisecond-level response capabilities. Testing at a storage power station in Xinjiang showed that when the grid frequency fluctuates beyond ±0.2Hz, the control screen can swiftly switch the energy storage charge/discharge mode within 80ms, achieving speeds three times faster than industry standards. This rapid response helps maintain grid stability amid frequency variations.
Moreover, its innovative battery health assessment algorithm is crucial. This algorithm allows for real-time and accurate evaluations of battery health, enabling adjustments to the energy storage system’s operational strategies. As a result, the system’s cycle life has been extended by 20%, reducing operational costs and the frequency of battery replacements.
Energy Efficiency Optimization in Agricultural Photovoltaic Projects
In a 2000-acre agricultural and photovoltaic complementary project in Shandong, the smart linkage control module of the public measurement and control screen has played a vital role. By coordinating light intensity with the irrigation system, the project has achieved enhanced returns from both “power generation and planting.” On one hand, effective temperature control of photovoltaic modules has led to an 8% increase in power generation efficiency. On the other hand, the precise irrigation system optimizes water usage based on light intensity and crop requirements, saving up to 30% water. Additionally, the system’s unique remote adjustment feature for module tilt allows for optimal sunlight exposure according to the growth cycles of crops, further boosting power generation efficiency while providing a more favorable environment for agricultural growth.
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