Electric heating system and control method thereof

Abstract

The invention relates to an electric heating system and a control method thereof. The electric heating system comprises an electric heat storage boiler unit, a water circulation unit, a heat pump main body unit, a climate compensator and a control unit, wherein the electric heat storage boiler unit is connected with the water circulation unit connected with a heat supply zone through an inner circulation pipe of a first heat exchange unit; the heat pump main body unit is connected with the water circulation unit connected with the heat supply zone through an inner circulation pipe of a second heat exchange unit; and the climate compensator and the control unit are separately connected with the electric heat storage boiler unit, the heat pump main body unit and the water circulation unit. According to the technical scheme provided by the invention, when electricity usage is at a low trough, circulating water can be independently or simultaneously heated by the heat pump and the electric heat storage boiler, so that the problem that the temperature rise of the heat pump is limited is solved, the heat utilizing efficiency is increased, and the energy source is saved; and at the same time, electric energy is converted to heat energy and stored in a heat storing body by the electric heat storage boiler, and when electricity usage is at a high peak, the heat can be released by the electric heat storage boiler through the heat storing body to heat the circulating water and realize indoor heating, so that the electricity usage pressure of a power grid is relieved, and electricity fees are saved for a user.

Description

technical field [0001] The invention relates to the field of electricity services, in particular to an electric heating system and a control method thereof. Background technique [0002] With the development of society and the improvement of people's living standards, the structure of power consumption has undergone drastic changes, the peak power is seriously insufficient, the peak-to-valley difference continues to increase, and the generator sets operate at low efficiency during the valley period. It is imperative to implement the measures of "shaving peaks and filling valleys". In addition, the boiler heating system consumes a large amount of coal resources and emits a large amount of carbon dioxide, acid gas sulfur dioxide and solid particles, causing air pollution and is the main cause of haze weather. one of the reasons. [0003] The heat utilization coefficient of the boiler is small, the efficiency is low, and the thermal energy resources cannot be used efficiently....

AI Technical Summary

Problems solved by technology

It is imperative to implement the measures of "shaving peaks and filling valleys". In addition, the boiler heating system consumes a large amount of coal resources and emits a large amount of carbon dioxide, acid gas sulfur dioxide and solid particles, causing air pollution and is the main cause of haze weather. one of the reasons

[0003] The heat utilization coefficient of the boiler is small, the efficiency is low, and the thermal energy resources cannot be used efficiently. At the same time, the boiler continues to heat day and night, and the electricity cost is high.

Heat pumps are difficult to operate in extremely low temperature environments, and the heating temperature of heat pumps is limited. Raising the water temperature in one step only consumes a lot of energy.

Indoor temperature is affected by the change of outdoor temperature, especially when the outdoor temperature is higher, the degree of indoor temperature deviation from the set value is greater, causing the indoor temperature to be too high. Existing central heating areas such as office areas and residential areas, office areas Simultaneous heating with residential areas, resulting in energy waste

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