Control method of secondary frequency modulation of electrical power system with participation of load side resources

Abstract

The invention discloses a control method of secondary frequency modulation of an electrical power system with participation of load side resources. The method adopts a direct load control method, and integrates the load of a user side capable of responding in 1 minute to a virtual automatic gain control (AGC) set, different control methods are provided respectively for energy storage type equipment and non-energy-storage type equipment, and the virtual AGC set can take part in the secondary frequency modulation of the electrical power system together with a solid AGC set. At present, the adjustable load of the user side is mainly applied to relieving the electricity bottleneck of electricity rush hours, under the support of an intelligent power grid and automated demand response technology, the demand response speed of the load of an air conditioner, a refrigerator, an electric water heater, illumination and the like can be less than 1 minute, the demand response speed of the load can be fitted into a real-time scheduling field, frequency modulation resources are provided, the switching on of intermittent new energy can be enlarged, and the energy saving and emission reduction of electricity can be further promoted.

Description

Technical field [0001] The invention relates to a control method for load-side resources to participate in the secondary frequency modulation of a power system, and belongs to a power system and its automation technology. Background technique [0002] In order to alleviate the energy crisis and reduce pollutants and greenhouse gas emissions, the “Regulations on the Management of Renewable Energy Power Generation” issued by the National Development and Reform Commission stipulates that grid companies should carry out grid construction and transformation in accordance with the construction progress and needs of renewable energy power generation projects to ensure Renewable energy power generation is fully online, and power generation companies should actively invest in the construction of renewable energy power generation projects and undertake the renewable energy power generation quota obligations stipulated by the state. However, wind power, photovoltaic and other renewable ener...

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Problems solved by technology

[0004] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a control method that can utilize load-side resources to participate in the secondary frequency regulation of the power system, so as to solve the shortage of frequency regulation resources on the power generation side due to the expansion of intermittent renewable energy access. question

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