A control method for an integrated energy system based on wind photovoltaic energy

Abstract

The invention relates to a comprehensive energy system and control method based on wind photovoltaic energy, including a wind photovoltaic energy subsystem and a gas energy subsystem, wherein the wind photovoltaic energy subsystem includes a wind photovoltaic energy conversion device, a fuel cell device, and a power storage device , Electric hydrogen production device, heat storage device, thermochemical energy storage device, gas energy subsystem includes gas power generation device and high temperature waste heat device, wind photoelectric energy conversion device includes thermal energy conversion module and electric energy conversion module, which combines stable power and unstable power. The complementary power supply mechanism can realize the stable and safe consumption of renewable energy, and solve the problems of fluctuation and response from the source side; the adjustment of the system is more flexible, and the wind-photovoltaic energy conversion device, power storage device, heat storage device, and gas power generation device are integrated. Set priorities in turn with fuel cell devices, and start step by step when the energy supply is insufficient, so as to realize the orderly adjustment of the entire system's intraday operation and inter-seasonal movement.

Description

technical field [0001] The invention relates to the technical field of energy, in particular to a comprehensive energy system and a control method based on wind and photovoltaic energy. Background technique [0002] With the country's energy transformation and structural adjustment, a large number of wind and photovoltaic investments have been made, and the main power supply has been transformed from the traditional coal power dominated to wind and photovoltaic as the main supply. In this process, the random fluctuation characteristics of wind and photovoltaics have become a difficult point in the transformation. At present, the power grid company has clearly proposed to build a new power system with new energy as the main body. In order to promote the power consumption of new energy units, the on-grid power of thermal power units must be limited. However, some domestic power systems also shoulder the heating function, which can Flexibility to regulate power supply is serio...

AI Technical Summary

Problems solved by technology

At present, the power grid company has clearly proposed to build a new power system with new energy as the main body. In order to promote the power consumption of new energy units, it is necessary to limit the on-grid power of thermal power units. However, some domestic power systems are also responsible for heating. The flexibility to adjust the power supply is seriously insufficient, and with the large-scale development of renewable energy, intermittent and unstable energy sources such as wind and solar power will be installed on a large scale at the power generation end and the user end. In this scenario, the electric cooling and heating of the entire power system Load balancing will be difficult to achieve

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