Distributed power supply cluster control system and control method thereof

Abstract

The invention discloses a distributed power supply cluster control system which comprises a distributed power supply cluster monitoring main station and a plurality of distributed power supply clusters. Each of the distributed power supply clusters comprises a distributed power supply cluster management device connected to the distributed power supply cluster monitoring main station and multiple distributed power supplies connected to the distributed power supply cluster management device. The invention also discloses a control method of the distributed power supply cluster control system. The method comprises the steps that the distributed power supply cluster monitoring main station monitors a grid operation state in real time, carries out area optimal flow calculation, obtains the active power control constant value, the reactive power control constant value, the power factor control constant value and the voltage control constant value of each distributed power supply cluster in an optimal flow condition, issues the control constant value of the distributed power supply cluster to the distributed power supply cluster management device, and the distributed power supply cluster management device carries out distributed power supply control. According to the system and the method, the influence on the safety stability of a power grid by a distributed power supply grid connection can be reduced.

Description

technical field [0001] The invention relates to a distributed power cluster control system, and also relates to a control method for the distributed power cluster control system, which belongs to the technical field of distributed power sources. Background technique [0002] The application of new clean energy such as photovoltaics and wind turbines is an important means to solve the future energy crisis and environmental pollution. According to the national development planning goals, my country's distributed power installed capacity can reach 74GW in 2015, accounting for 5.0% of the country's total installed capacity in the same period; in 2020, the distributed power installed capacity can reach 187GW, accounting for 9.3% of the country's total installed capacity in the same period. The grid-connection of high-penetration distributed power generation poses a challenge to the safe and reliable operation of the power grid. Therefore, increasing the proportion of new energy c...

AI Technical Summary

Problems solved by technology

The cluster control technology was initially applied to the grid-connected control of large-scale offshore wind farm clusters, but has not been successfully expanded to the field of distributed photovoltaics, gas turbines and other types of distributed power sources.

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