CYG SUNRI CO., LTD.

PRS-7000AGC

Overview/Introduction/Application Technical Features/Advantages Technical Specifications/Sub-models Related Solutions

PRS-7000AGC

Product Description

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.

Scope Of Application

It is applicable to the wind power plants and PV power stations of various scales.

Technical Features/Advantages

The system adopts the front-end processorof remote acting machine to realize communication,whichhas thebest EMC performance indicators. It improves the anti-interference ability of system, and ensures stable and reliable system operation;

Redundant design is adopted inimportant links such as system power supply and controller, which hashigh reliability;

The system provides multiple types of communication interfaces and supports multiple protocols;

The active power control and reactive power control of the system are designed and implementedusing independent modules, which can be independently deployed or fully deployed according to requirements;

The system supportsmultiple dispatching instructions, including real-time instructions and planning curves;

The system can directly receive the dispatching active commandand the dispatching plan curve;

The system adopts redundant hierarchical mode to record and store large-capacity operating data and operating logs, which can be viewed on the system software interface or accessed on the main station system.

Specifications/Submodels

System performance indicators
System mean time between failures (MTBF)	≥40000h
Dual machine failover time	≤ 30 s
Annual availability of system	≥99.99%
Screen response time when calling real-time data	≤ 2 s
Screen generation and response time when calling historical database	≤ 10 s
Accident screen launch time	≤ 2 s
Cross-dead zone transmission of remote metering	≤ 3 s
Change of state (COS) transmission of remote signal	≤ 1 s
Control command (remote control, remote regulating, remote setting) transmission time	≤ 2 s
System alarm accuracy	100%
Control accuracy	100%
Index analysis and calculation accuracy	＞ 95%
Single control (all devices) command completion time	≤ 20 s
AGC control command precision	≤ 0.02MW, determined according to the actual execution unit
AGC control command issuing speed	＜ 2 s