Efficient off-peak electricity energy storage heating system and control method thereof

Abstract

The invention provides an efficient off-peak electricity energy storage heating system and a control method thereof. The heating system receives electric power supply at off-peak electricity time frames and maintains the temperature of a heat storage box within a preset range. The heating system comprises a heat generation part, a heat storage part and a heat supply part, wherein the heat generation part generate heat by using electric power supplied from an off-peak electricity time frame electric power system; the heat storage part stores the heat generated by the heat generation part; and the heat supply part releases the heat accumulated in the heat storage part. The control method of the heating system comprises the following control step of automatically controlling off-peak electricity supply heat generation according to given control parameters of the heat storage part to accord with set target parameters of a heat release part. In the control step, the heat generation part is provided with a plurality of heater groups, the heat storage part comprises the heat storage box, the heating system selects and uses a PLC temperature control system to conduct PID adjustment on the temperature in the heat storage box, and the number of the heater groups for generating heat is gradually decreased or increased when the set target parameters are approximate until the temperature of the heat storage box confirms to a set temperature.

Description

technical field [0001] The invention relates to a heat storage heating device, in particular to a high-efficiency off-peak electricity storage heating system and a control method thereof. Background technique [0002] In the current market, electric heating devices are widely used, and because of the distribution of working hours, most of them use electricity intensively during peak hours, which brings a huge burden to the power supply, and at the same time increases the operating costs for households or businesses. Is it possible to introduce a heat storage device into the existing electric heating device, and at the same time, it can solve the problem that most households and enterprises will concentrate on electricity consumption during the peak power period and concentrate on empty electricity during the valley power period, so as to realize the utilization of electricity during the valley power period? Heating and realizing energy storage, and providing thermal energy w...

AI Technical Summary

Problems solved by technology

This temperature control method has poor temperature control accuracy, the maximum error value can reach more than 5 degrees, and the temperature error value is too large

[0004] Moreover, the current large-capacity energy storage devices commonly have the problem of temperature stratification of the heat storage medium during heat exchange, which affects the heat storage efficiency of the heat storage medium. In this regard, how to increase the heat storage density of the heat storage medium and improve the Thermal energy efficiency has become an urgent problem to be solved

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