Software architecture of energy storage power system

　　The software architecture of the energy management system consists of three levels: operating system, support platform, and application functions. The application functions are further divided into two parts: basic application functions and advanced management functions, as shown in the following figure. The operating system supports cross platform support, which includes modules such as data collection management, database management, network communication management, graphics management, report management, permission management, alarm management, and calculation statistics. The basic application functions include SCADA processing, monitoring, statistical analysis, and secure web data publishing. Advanced management functions include setting global energy management goals, etc.

　　The coordination controller adopts a B/S structure, including hardware controller, function control software, and browser user interface. The software architecture of the coordination controller is shown in the following figure. The server-side of the coordination controller includes two parts: supporting software and functional software. The functional software includes microgrid coordination control and device coordination control. The coordinated control function of microgrids includes basic control of microgrid operation, seamless switching control, power balance optimization control, power fluctuation smoothing control, overall optimization control of active power, overall optimization control of reactive power and voltage, and optimization control of power quality. The equipment coordination control function includes photovoltaic power generation output control, controllable load regulation, interruptible load regulation, and active and reactive power optimization control. The browser end of the coordination controller is the user interface, which allows observation of the working status, configuration parameters, and control modes of the coordination control function software.

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