In order to better adapt to the new energy development forms under the goal of "carbon dioxide peaking and carbon neutrality", strengthen the grid-connected operation management of new energy generation units, regulate the network-related performance of new energy power stations and plants, promote the development and consumption of new energy, maintain the safe and stable operation of power systems, promoting the rapid frequency response of new energy power stations and plants is a major measure to ensure the safe and stable operation of power grids with a high proportion of new energy. It is of great significance to build a safety risk prevention and control system for primary frequency modulation of power generation units with “clear authority and responsibilities of frequency regulation, and coordination among various types of units” for promoting the sustainable and healthy development of new energy.
The primary frequency modulation control equipment of CYG ET is composed of a management unit and an acquisition unit. The acquisition unit is connected to PT and CT signals of grid-connection points to realize rapid frequency acquisition of new energy power stations; The management unit calculates primary frequency modulation load according to the frequency dead zones and modulation error ratio. Coordinating with the AGC system, the equipment, according to the real-time operating conditions provided by each power generation unit, reasonably distributes the values specified by active power increment commands to each power generation unit by using optimized group control strategy, so as to achieve accurate adjustment of each power generation unit, active power-frequency droop control of new energy stations, and fast frequency modulation.