Distributed, non-storage, non-inversion solar photovoltaic variable power energy storage electric heating system and control method

Abstract

The invention discloses a distributed, non-electric storage, non-inversion solar photovoltaic variable power energy storage electric heating system, which is equipped with a solar power generation device, and the electric heating system is equipped with a wind power generation device; the electric heating system is also compatible with the market Electric grid connection; the solar power generation device, wind power generation device and mains power grid are connected to the electric heating system through controllers that control AC and DC switching or variable power and constant power respectively according to timing or temperature programming middle. The invention also discloses a control method of the system. Using the above-mentioned technical solutions, the full and effective utilization of renewable energy can be realized, and various energy sources can be organically combined to provide a scientific and reasonable model for a low-carbon, green and healthy life.

Description

technical field [0001] The invention belongs to the technical field of renewable energy utilization and integrated application of new functional materials. Specifically, the invention relates to a distributed, non-electric storage, non-inversion solar photovoltaic variable power energy storage electrothermal system. In addition, the invention also relates to a control method of the electric heating system. Background technique [0002] With the increasingly tense global energy situation, energy conservation and environmental protection have become the focus of attention of countries all over the world. However, the traditional coal-fired, gas-fired heating methods and various constant-power electric heating methods can no longer meet the needs of building heating (warm) in existing urban and rural areas (especially remote areas without power facilities). [0003] In order to improve energy utilization efficiency and control environmental pollution, many new heating technol...

AI Technical Summary

Problems solved by technology

[0005] 1. Using low-valley electricity heating method: Although the effective use of energy is realized, it can only meet the heating demand in winter, and at the same time, it still fully applies secondary clean energy

[0006] 2. Heat collection technology for solar energy utilization: affected by factors such as region, day and night, climate and sunshine collection rate changes, the temperature of the hot water provided is unstable; even if a large storage tank is used for sensible heat storage, it can reach If it does not meet the requirements of stable heat supply, it can only use the indirect complementation of mains power, and the heat efficiency of intermediate transmission and storage is low, and the gain outweighs the gain; at the same time, it also brings the overload of dozens of tons or even thousands of tons of water tanks, antifreeze, antifreeze, split Problems such as difficulty in integrating with buildings, and technical bottlenecks that cannot be overcome or have not been overcome for a long time in various devices;

[0007] 3. Water source or air source heat pump technology: It is easily affected by the natural conditions of the water source or air source, especially in low-temperature heating and high-temperature cooling, the overall level of COP (energy efficiency ratio) value has not reached "1:1", Even in severe cold, extremely cold areas or conditions without mains power, it cannot be used at all

[0023] There is no timing setting control, no latent heat energy storage device, so only relying on water to store energy, can not achieve the function of macroscopically saving electricity and saving personal expenses by using low-peak electricity in the whole cycle;

[0024] It is impossible to use safe voltage, and there are certain high-voltage safety hazards;

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