The substation monitoring system is deployed in the substation, which is the brain of substation operation and management. By following the design principles of digital information collection, network-based communication platform and standard information sharing, the PRS-7000 substation integrated monitoring system adopts the DL/T860 standard and layered distributed architecture. Based on system integration and optimization, this system can achieve uniform collection, processing, storage and display of multi-specialty information of station., and realize the functions of operation monitoring, operation control, economic operation of reactive voltage, comprehensive information analysis, intelligent fault alarm, intelligent association, operation management and auxiliary applications. It supports the information model and standardized interface for deep interaction and collaboration between the main station and substation, and also supports comprehensive monitoring and remote operation and maintenance management of the substation by the higher-level main station.

With the development of power grid, a large number of new energy stations are connected to the power grid, and the capacity and complexity of power grid continue to increase. The original power and voltage control methods of telephone communication and manual operation gradually fail to meet the demand. The wind and PV power generation is fluctuating, which can easily destroy the real-time balance of power grid, affect the safe operation of power grid, and generate many problems to the safe dispatch of power grid. Moreover, the capacity of a single unit of wind and PV power generation is small, and there are a number of units, which involve relatively broad distribution and difficult manual control. Therefore, by connecting to the AGC control system, the overall stability of the wind power plant and PV power plant connected to power grid can be maintained, the absorption capacity of wind and PV power generation is improved, and the continuous and stable operation of the wind turbine and inverter can be ensured without being disconnected from the grid.The PRS-7000AGC control system is an automatic active power control system developed by CYG SUNRI. Through system integration and optimization, with the active power of grid connection point as the control target, this system comprehensively considers the topological relationship and various safety constraints of equipment, and calculates the control strategy online according to the real-time operating condition of power grid. In this way, it can achieve automatic closed-loop control of the active power output of power generation equipment, facilitating safe, economic and reliable operation of power grid.

By following the design principles of digital information collection, network-based communication platform and standard information sharing, the PRS-7012 monitoring system for centralized control station adopts layered distributed architecture. Based on an integrated platform, this system can achieve uniform collection, processing, storage and display of multi-specialty information of station. Through system integration and optimization, the system can provide operational monitoring, operation and control, monitoring management, and system maintenance of related plants and stations, and offer online real-time monitoring and panoramic display integrating main and auxiliary functions.

As one of the key devices in the automation system of substation, the BCU has the functions of remote metering, remote signal, remote control, remote regulating, synchronous close, remote control of bay anti-maloperation blocking, synchronous phase measurement and redundant backup. It can meet the application requirements of substation automation systems with voltage levels of 110kV and above.

The PRS-7910 Station Manager is designed for the highest standards of performance, safety and reliability to meet requirements of a complex substation automation system (SAS). As a part of the SAS, it works as a station communication manager, which collects, stores and maps signals of relays, measurement units, control units and other IEDs in the substation to higher-level systems such as control center (CC) and distributed control system (DCS).

CYG PRS-7961 Industrial Ethernet Switch, designed for Communications Networking Devices Installed in Electric Power Substations and harsh industrial environment. Widely used in smart grid, new energy, industrial control, transportation, water conservancy and other fields.

PRS-7391 time synchronization device is applicable to substations and power plants with the voltage grade ranking at or above 10KV, which provides time and synchronization information for various secondary equipments in the plants and stations, such as dispatch automation system, microcomputer relay protection device, fault recorder, event sequence recording device, tele-control device (RTU), computer data exchanging network, intelligent electronic device (IED), etc.

PRS-7973 fault recording and ranging equipment is used to record the whole process of change of electrical quantities such as current, voltage, frequency, and their derived quantities (active power and reactive power etc.) as well as relevant non-electrical quantities during various faults in the power system, e.g. short circuit, oscillation, frequency collapse, and voltage collapse etc.

PRS IED Studio configuration tool is a software designed for configuration PRS series devices. It can acquire IED real-time data, configures the inputs, outputs and parameters of devices in visual and graphic display to facilitate project configuration. Modularization design is adopted to achieve high accuracy, better flexibility and interactive capability.