The centralized monitoring and control system for wind power plants adopts a combined C/S + B/S architecture to meet the needs of different users in different environments. The system can function as a cluster monitoring system, enabling centralized monitoring and management. It can monitor and control a single wind farm, as well as centrally monitor and control multiple wind farms. Simultaneous monitoring and control of both the wind farm and the central control unit is also possible without interference. Monitorable objects include wind turbines, substations, weather stations, and reactive power compensation devices.
The wind power prediction system provides crucial reference for grid peak shaving, frequency regulation, and the scientific management of wind power plants through accurate power forecasting. The system establishes a predictive model for the power output of the wind farm based on historical power data, historical meteorological data, topographic data, numerical weather forecasts, and wind turbine operating status. Measured meteorological, power, and numerical weather forecast data are used as inputs to the model, combined with the equipment operating status and conditions of the wind farm units, to obtain the future power output of the wind farm. Depending on the different prediction time scales and specific application requirements, multiple methods and models are employed to form the optimal prediction strategy.
The wind farm's active and reactive power automatic control system coordinates and controls wind turbines, reactive power compensation devices (SVC/SVG), on-load tap changers, and other regulation methods. It calculates the wind farm's power demand according to the regulation targets periodically issued by the dispatching master station or the local predetermined regulation targets, selects control equipment and allocates power, and automatically issues the final control commands to the controlled equipment. Ultimately, it monitors and controls the wind farm's active and reactive power and grid connection voltage, meeting the wind farm's grid connection technical requirements.
The integrated automation system for wind / photovoltaic power substations is widely applicable to the protection and monitoring of substations at various voltage levels for wind and photovoltaic power generation. This system is an open, networked, modular, and configurable hierarchical distributed substation integrated automation system that integrates protection, monitoring, control, and communication functions, utilizing power automation technology, computer technology, and information transmission technology. Its core devices completely replace conventional substation protection, instrumentation, central signaling, and remote control devices, optimizing the system structure and improving operational reliability. It is a technologically advanced, fully functional, highly reliable, and easy-to-use and maintain substation integrated automation system.
