How to Safely and Efficiently Operate a Photovoltaic Power Station?

As the economy and society develop, the load on the electrical grid continues to climb, necessitating ongoing upgrades and transformations. The number of 10 kV lines, which serve as a main supply for county-level power grids, is steadily increasing. With the growing integration of distributed power sources, the diversity of line loads is also expanding.

One critical challenge is enhancing the efficiency of shift monitoring to enable operators to quickly grasp the operational status of 10 kV lines. Rapidly identifying and addressing faults is a pressing issue that needs resolution.

Below, ADNLITE will share insights on how to effectively manage and maintain a solar power generation system, ensuring both safety and high performance in operations.

Management and Monitoring of Solar Power Station Dispatching

Manual cleaning of solar panels

Dispatchers play a crucial role in monitoring solar power stations during their shifts. Their main tasks include:

  1. Post-Shift Change Inspection
    • After taking over their shift, dispatchers should inspect all lines. They compare the current day’s load with the previous day’s to detect any sudden changes. This helps in load analysis and short-term load forecasting.
  2. Identifying Sudden Load Changes
    • If a sudden load change occurs at any time during the day, dispatchers must promptly identify and manage it to prevent potential disruptions.
  3. Handling Large-Scale Power Outages
    • During large-scale power outages, dispatchers may receive customer inquiries where the affected lines are not clearly described. In such cases, they need to review the load curves of multiple lines supplying the area to identify the likely fault line and quickly pinpoint the issue.
  4. Monitoring During Ring Main Unit (RMU) Operations
    • During RMU operations, it is essential to monitor the load changes on multiple lines simultaneously. Dispatchers often need to consult line load curves to analyze and determine any abnormalities. By comparing load curves, they can make informed decisions about abnormal lines.

As the power grid expands and the number of lines increases, reviewing load curves can extend the time needed to diagnose faults. This delay can hinder rapid fault resolution, affect the swift restoration of power to customers, and potentially lead to grievances and safety hazards. Effective management and streamlined procedures are critical to mitigating these challenges and ensuring reliable and efficient power distribution.

How to Enhance Monitoring Efficiency Using Load Index Diagrams

manual solar panel cleaning

Dispatchers often see a multitude of colorful numbers on the system monitoring interface.

Experienced dispatchers can interpret these numbers to understand the line conditions quickly. However, less experienced dispatchers might only see the numbers and may miss the optimal time to address issues. Therefore, the timely detection of faults is crucial.

If line load curves can be displayed in real-time, these problems can be resolved efficiently.

Efficient Use of Photovoltaic Operations and Maintenance Monitoring Systems

solar home power system

Effectively utilizing a photovoltaic operations and maintenance (O&M) monitoring system is crucial for early problem detection. These systems typically include smart energy meter data collection and monitoring systems, inverter data collection and O&M management systems, and external video surveillance systems for the site.

  1. Smart Energy Meters
    • Accurate data collection from smart energy meters is essential for calculating the returns of photovoltaic power stations, particularly those involved in poverty alleviation projects. Data analysis from these meters supports performance assessment and O&M management of the power station.
  2. Inverter Data Collection and O&M Management System
    • This system serves two main purposes: integrating with the national grid platform for regulatory oversight and providing an intelligent O&M solution. It enables real-time monitoring of various equipment statuses, power quality, and other critical parameters of the photovoltaic power station. The system allows for both real-time and long-term analysis of the O&M status.
    • Key features include alarm localization, remote maintenance, and expert diagnostics, which contribute to efficient O&M, timely fault resolution, and safeguarding the power station’s profitability.
  3. Output and Display
    • The monitoring system’s data can be displayed on mobile devices, PC terminals, equipment interfaces, and large screens in the O&M center. This multi-platform access ensures that relevant information is readily available to operators and stakeholders, facilitating swift decision-making and action.

By leveraging these monitoring systems, photovoltaic power stations can maintain optimal performance and profitability. Early detection of issues through real-time data analysis and intelligent O&M solutions ensures the smooth operation of the power station and maximizes its efficiency.

Call to Action

Contact ADNLITE to receive a free professional Solar Power System proposal. We distribute a variety of solar panel and inverter brands. Additionally, we have long-term partnerships with factories that produce high-quality photovoltaic system components.