Self-balancing control method for energy system

Abstract

The present invention discloses a self-balancing control method for an energy system, which comprises the following steps: a microgrid is configured; a microgrid circuit is arranged at a power distribution end of a power grid and the microgrid circuit comprises a photovoltaic power generation device, a storage battery, an energy storage inverter, a controller and various electrical loads; the controller controls the photovoltaic power generation device, a distribution box switch, the energy storage inverter and an switch of the electrical loads; the power grid transmits power to the microgridcircuit through the distribution box; peak-load shifting is controlled; a power supply process of the power grid includes a peak load period and a valley load period; a net load P is obtained by subtracting the power output of a renewable energy power generation system from an actual load; and off-grid switch is performed. The invention can alleviate the power supply pressure of the power grid under a peak load and makes full use of the excess electric energy in the valley load period. Stable power consumption of a user is ensured so that daily electricity and office work do not delay even power supply is cut off due to a grid fault. A stable power grid is provided and the negative effects of unstable photovoltaic power generation are avoided.

Description

technical field [0001] The invention relates to a control method, in particular to an energy system self-balancing control method. Background technique [0002] With the development of a resource-based society, the conservation and utilization of electric energy has attracted more and more attention from the society. In particular, our daily life and work are inseparable from electricity, so how to ensure the maximum utilization of electricity has been a research issue in the field. [0003] The grid includes transformation, transmission and distribution. Power distribution is the link in the power system that is directly connected to users and distributes electric energy to users. Power distribution has the characteristics of many users and time divisions, that is to say, almost every family has more than one electrical appliance, and power consumption has a peak period. and trough periods. During the peak period of electricity consumption, the simultaneous electricity c...

AI Technical Summary

Problems solved by technology

During the peak period of electricity consumption, the electricity consumption of every household at the same time will cause a great burden on the power grid, and the electricity consumption will increase significantly.

The power loss also increases significantly; the user's power consumption drops sharply during the low power consumption period, and under the same power distribution, it will also cause power loss

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