As power grids continue to develop and an increasing number of new energy power stations are connected, the capacity and complexity of grids are constantly growing. The existing methods of power and voltage control, which relied on telephone communication and manual operations, are gradually becoming inadequate to meet the demand. Wind and PV power generation are subject to fluctuations, which can disrupt the real-time balance of power grids and compromise their safe operation, leading to a range of problems in power grid dispatch. Additionally, due to the small capacity of a single wind/PV power generation unit, generation units are great in number and highly dispersed, and it is difficult to control them manually. Therefore, connecting to the AGC control system can help maintain the overall stability of power grids with connected wind farms and PV stations, enhance the capacity for consuming power generated by wind and PV systems, and ensure that wind turbines and inverters operate stably without disconnecting from the grid.
The PRS-7000 AGC control system, developed by CYG ET CO., LTD, is an automatic active power control system. Through system integration and optimization, the control system takes the active power at grid-connection points as the control target, while comprehensively considering the topological relationships and various safety constraints of equipment. By calculating control strategies online based on real-time power grid operations, the system achieves automatic closed-loop control of active power outputs from power generation equipment, helping to ensure safe, cost-effective, and reliable operation of power grids.