A control method for an isolated grid solar-wind-oil hybrid power generation system

Abstract

The invention discloses a control method for an isolated network solar-wind-oil hybrid electricity generating system. The control method comprises the steps that a power switch is switched on, a voltage stabilizing module supplies electricity to related units, the photoelectricity unit, the wind electricity unit and the oil electricity unit are started, the energy storage unit is charged, information of charging voltage, current, temperature and charging power of the units is transmitted to a direct-current energy storage controller, an alternating-current electricity utilization controller transmits the monitored output power of the oil utilization unit to the direct-current energy storage controller, the direct-current energy storage controller calculates the output power of the current photoelectricity unit, the wind electricity unit, the oil electricity unit, the surplus power charging unit and a load electricity utilization power value, the direct-current energy storage controller monitors, calculates and controls the voltage, current, temperature and accumulated electricity quantity in real time through the energy storage unit, and the result is transmitted to a man-machine fault warning unit for warning and display. According to the control method for the isolated network solar-wind-oil hybrid electricity generating system, intelligent management of electricity utilization is achieved, the service life of a generator and the service life of a storage battery are prolonged, the maintenance cost of the generator is reduced, and finally the aims of reducing diesel consumption, saving energy and reducing emission are achieved.

Description

technical field [0001] The invention belongs to the technical field of power generation, and in particular relates to a control method for an isolated grid light, wind and oil hybrid power generation system. Background technique [0002] In remote mountainous areas, especially in the mountains, mining resources are required to use electricity. The cost of setting up power transmission lines in these mountainous areas is very high for the State Grid, and it is impossible to demonstrate in a short time whether it is necessary to erect power transmission lines. At this time, usually They all use diesel generators to generate electricity on site to solve work and domestic electricity consumption. However, the use and maintenance costs of diesel generators are relatively high, and they also pollute the surrounding environment to a certain extent. [0003] With the gradual exhaustion of non-renewable energy development and rising oil prices, the use and maintenance costs of diese...

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Problems solved by technology

[0004] However, in the current environment-friendly power consumption mode, although independent photovoltaic power generation or wind power generation can also solve certain power consumption problems, there are cloudy days, rainy days and nights for photovoltaic power generation after all; Wind, or insufficient wind power, all these make it difficult to guarantee electricity consumption for work and life 24 hours a day

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