A micro-energy grid system and a voltage regulating control method thereof

Abstract

The invention provides a micro-energy grid system and a voltage regulating control method thereof, the system comprising: an execution device and a controller; The controller collects the original electrical parameters of the executing equipment, and controls the voltage of the executing equipment according to the original electrical parameters to perform primary voltage regulation control to stabilize the voltage of the micro-energy grid, and controls the voltage of the executing equipment according to the collected adjusted electrical parameters to perform secondyar voltage regulation control to make the voltage of the micro-energy grid reach the rated voltage. According to the collected electrical parameters of the micro-energy network, the voltage of the micro-energy grid is stabilizedby primary voltage regulation control, The voltage of the micro-energy grid can reach the rated voltage by using secondary voltage regulation control, which can adapt to the characteristics of load change and distributed renewable energy fluctuation, make full use of the reactive power capacity of the renewable energy, ensure the high quality of the output electric energy of the micro-energy grid, support the safety and stable operation of the distribution network, and improve the reliability of the distribution network.

Description

technical field [0001] The invention belongs to the technical field of electric power, and in particular relates to a micro energy network system and a voltage regulation control method thereof. Background technique [0002] With the gradual exhaustion of conventional energy and the increasing environmental pollution, the development of renewable energy has entered people's field of vision. The micro-energy grid with renewable energy as the core has been developed. As a supplement to the traditional power supply form, the micro-energy grid has the advantages of flexibility, wide application range, and low emission of pollutants, and can meet the needs of load growth, reduce environmental pollution, and improve energy efficiency. Comprehensive utilization rate of energy. Distributed power sources in the micro-energy network include technologies such as solar power generation, wind power generation, and biomass power generation. Fully developing and utilizing these scattered ...

AI Technical Summary

Problems solved by technology

[0003] However, wind energy and solar energy are primary energy sources, which cannot be stored, and are easily affected by natural climate, and have strong random fluctuations, which determine the randomness of their power generation , intermittent, difficult to control

In particular, when the distributed power generation and the power distribution system are connected to the grid, many new problems will be caused in terms of power quality, system stability, voltage stability, reliability, and economy.

For example, due to the sudden change of the load in the micro energy network, the power generation and the load power will not match. These factors will cause the node voltage to fluctuate and affect the quality of power supply.

Images