Electric heat storage device planning method and system based on hydraulic calculation and double-layer optimization

Abstract

The invention discloses an electric heat storage device planning method and system based on hydraulic calculation and double-layer optimization, and the method comprises the steps: building a hydraulic calculation simulation model and a load prediction model of a central heating system, and obtaining unfavorable hydraulic working condition users and large-load users; electric heat storage devices are arranged at heating stations of unfavorable users and heavy-load users of a heat supply system respectively, different operation schemes of the electric heat storage devices are set according to heat storage and release characteristics, and multiple planning and design schemes of the electric heat storage devices are formed; and calculating hydraulic calculation indexes, hydraulic imbalance degree and water pump performance under different planning and design schemes based on the hydraulic calculation simulation model. According to the electric heat storage device planning method and system based on hydraulic calculation and double-layer optimization provided by the invention, the electric heat storage device is reasonably controlled, the deployment of the electric heat storage device in a heating station is scientifically and reasonably planned, the economic planning of investment cost and operation cost and the factors of heat supply network hydraulic balance are integrated, and the electric heat storage device planning method and system based on hydraulic calculation and double-layer optimization are obtained. And the demand of combined heat and power dispatching of the central heating system is met.

Description

technical field [0001] The invention belongs to the technical field of intelligent heating, and in particular relates to a planning method and system for an electric heat storage device based on hydraulic calculation and double-layer optimization. Background technique [0002] For a long time, coal-fired units have been the main source of heating for cities and towns in northern my country in winter, and the emissions of air pollutants such as carbon dioxide are large. Replacing the traditional coal-fired central heating is showing a rapid growth trend. Taking advantage of the low electricity price, collecting and storing low-priced heat energy, and then transferring it to the peak electricity price period can reduce the operating cost of electric heating. [0003] It is engineering feasibility to arrange electric heat storage devices in the heat station of the central heating system and use them complementary to the existing central heating system. Electric thermal storage ...

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Problems solved by technology

[0004] The traditional heat storage and release strategy is relatively simple. There is no reasonable control strategy and heat storage and discharge capacity calculation model for electric heat storage devices. It is easy to occur when the heat storage is insufficient, and the indoor temperature cannot be maintained, which affects user experience. There is no scientific and reasonable plan for the deployment of thermal stations, and the consideration is often relatively simple, ignoring investment costs, economic planning of operating costs, and factors of hydraulic balance of the heating network, which cannot meet the needs of combined heat and power dispatching of central heating systems

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