Photovoltaic power station power control method and system

Abstract

The invention provides a photovoltaic power station power control method and system. The photovoltaic power station power control method comprises the following steps: step 1, acquiring basic data of a photovoltaic power station to be detected; step 2, setting operation parameters of the photovoltaic power station to be tested; step 3, calculating an active power change value of the photovoltaic power station to be tested and the total input number of inverters of the photovoltaic power station to be tested; 4, controlling the power of the photovoltaic power station according to the real-time power of the to-be-tested photovoltaic power station and the target set value of the power of the to-be-tested photovoltaic power station in combination with the active power change value of the to-be-tested photovoltaic power station obtained in the step 3 and the total input number of inverters; according to the invention, power lifting and lifting speed limitation of the photovoltaic power station can be realized on a photovoltaic power station control system, and the operation cost of the power station is controlled.

Description

technical field [0001] The invention belongs to the technical field of new energy photovoltaic power generation, and in particular relates to a photovoltaic power station power control method and system. Background technique [0002] At present, the power control of photovoltaic power stations is generally realized by the AGC / AVC system to achieve automatic power control and automatic voltage control; among them, AGC automatic generation control (Automatic Generation Control) refers to the use of computer systems, communication networks and adjustable equipment to operate the power grid in real time. On-line calculation of the control strategy and automatic closed-loop control of the active power output of the power generation equipment. AVC automatic voltage control (Automatic Voltage Control) refers to the use of computer systems, communication networks and adjustable equipment to calculate the control strategy online according to the real-time operating conditions of the ...

AI Technical Summary

Problems solved by technology

Due to the lack of corresponding power control means, the above-mentioned photovoltaic power stations cannot effectively control the power generation and power change rate

It will happen that the power grid requires the entire station to shut down and cut off the power grid, or the power up and down speed exceeds the limit and is subject to economic assessment, which will cause huge economic losses to the photovoltaic power station.

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