Active power distribution method for centralized control terminal of photovoltaic power station according to high electrovalence priority

Abstract

The invention discloses an active power distribution method for a centralized control terminal of a photovoltaic power station according to high electrovalence priority. The method comprises the steps as follows: firstly, an active power distribution module of the centralized control terminal and a probe timer are arranged and run on a prime mover at the centralized control terminal of the photovoltaic power station; the active power distribution module of the centralized control terminal distributes total active power of the centralized control terminal on the basis of a high-electrovalence power station priority distribution principle according to the collected dispatching total active instruction and actually issued values of active power of power stations, and generates an active power distribution result of distributing the total active power of the centralized control terminal to the power stations in real time by a method of combining detection and distribution according to the margin; and finally, the active power distribution module of the centralized control terminal issues the active power distribution result to front-end processor AGC modules of the power stations for execution through a communication module on the prime mover. Maximization of total power generation benefits of different electrovalences of different power stations under the centralized control terminal of the photovoltaic power station is achieved; the power generation requirements of the power station with high electrovalence are met in priority; and the economic benefits are greatly improved.

Description

Technical field [0001] The invention relates to an active power distribution method, in particular to an active power distribution method at a centralized control end of a photovoltaic power station prioritizing high electricity prices, and belongs to the technical field of active power control. Background technique [0002] Due to the policy reasons of the on-grid electricity price of new energy, the on-grid electricity price of each plant and station is quite different due to the different construction period or geographical location (for example, different resource areas). [0003] The current scheduling only adjusts the total active power delivered by the centralized control end, and then the centralized control end active power distribution module performs secondary allocation, and sends the allocation result to each plant station through the plant station AGC power control algorithm module to perform the allocation result. [0004] Currently, the distribution of active power a...

AI Technical Summary

Problems solved by technology

[0004] At present, the distribution of active power at the central control terminal of photovoltaic power plants is mainly based on the generation margin or power prediction results as distribution strategies. These distribution strategies do not take into account the price of electricity, which directly reduces the economic benefits of photovoltaic power plants.

Images