An AGC control method for bundled direct current delivery of scenery and fire

Abstract

The invention discloses a wind-photovoltaic-thermal-bundled DC transmission AGC control method. Firstly a master control area and a wind-photovoltaic-thermal-bundled control area are established in aprovincial power grid, wherein the control boundary of the wind-photovoltaic-thermal-bundled control area is a thermal total transmission connection line, a DC transmission connection line and a new energy transmission convergence line. If the wind-photovoltaic-thermal-bundled control area has an overall power generation plan, the wind-photovoltaic-thermal-bundled control area uses the FTC mode tocontrol. If there is no overall power generation plan, the wind-photovoltaic-thermal-bundled control area can use the internal fluctuation suppression and auxiliary main network frequency connectionline power control mode so that waxing and waning of the wind-photovoltaic-thermal output can be realized, the power of the bundled transmission area is ensured to be stable and the influence of new energy fluctuation of the wind-photovoltaic-thermal-bundled transmission area on the overall power grid can be reduced.

Description

technical field [0001] The invention relates to an AGC control method for bundled direct current transmission of wind, solar and thermal power, and belongs to the technical field of active power control of electric power systems. Background technique [0002] With the centralized grid connection of large-scale new energy, in order to further enhance the ability of new energy transmission and increase the level of new energy consumption, some areas have adopted the construction of cross-regional and cross-provincial UHV DC projects, through the power of wind power, photovoltaic and thermal power. After bundling and then direct current delivery, the cross-regional and large-scale consumption of new energy is effectively realized. In order to ensure the stable output power of UHV DC and minimize the power exchange from the AC system of the interconnected grid, it is necessary to realize the support of active closed-loop automatic control technology for bundling wind and power. ...

AI Technical Summary

Problems solved by technology

The active power control technology of the grid and wind farms after wind power access is disclosed from different aspects such as grid resource coordination, resource allocation optimization, and grid security. However, it does not analyze the coordination of wind power and conventional energy from the perspective of real-time control and AGC. Discussion on wind farm active power control technology

Images