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Heat accumulating type electric heating optimal configuration method and device considering distribution network power and heat supply

An optimized configuration and electric heating technology, which is applied to central heating to achieve the effects of improving practicality, reducing the simultaneous rate of electricity consumption, and relieving operating pressure

Pending Publication Date: 2021-11-09
STATE GRID FUJIAN POWER ELECTRIC CO ECONOMIC RES INST +1
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Problems solved by technology

Although the above research considers the constraints of the transmission power of the distribution network on the energy storage capacity, it does not make full use of the hot water storage tank to achieve "non-stop heating during power outages" during power interruptions.

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  • Heat accumulating type electric heating optimal configuration method and device considering distribution network power and heat supply
  • Heat accumulating type electric heating optimal configuration method and device considering distribution network power and heat supply
  • Heat accumulating type electric heating optimal configuration method and device considering distribution network power and heat supply

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Embodiment

[0329] Figure 5 In order to calculate the typical daily heat load of the park’s building group heating area in the heating season according to formula (11), assuming that the park’s building composition is consistent, the types and parameters are selected from literature [27] (Zhang Jiarui, Mu Yunfei, Jia Hongjie, etc. A Day-Ahead Optimal Scheduling Method for Thermal Storage Electric Heating Considering the Heat Demand of Users During Power Outages [J]. Automation of Electric Power Systems, 2020, 44(21): 15-22).

[0330] The outdoor temperature and light intensity of this typical day are as follows: Image 6 (a) and (b) in. The main parameters of the heat pump and water storage tank are shown in Table 1. Table 2 shows the time-of-use electricity price and the power purchase quota at the peak of electricity consumption. The basic electric load and carrying capacity of the distribution network at each moment are as follows: Figure 7 and Figure 8 shown.

[0331] Table 1...

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Abstract

The invention provides a heat accumulating type electric heating optimal configuration method and device considering distribution network power and heat supply. The method comprises the following steps that S1, a heat accumulating type electric heating system mathematical model is constructed; S2, on the basis of the heat accumulating type electric heating system model, a double-layer optimal configuration mathematical model of the heat accumulating type electric heating system is constructed; the upper layer of the mathematical model takes the minimum investment cost equivalent annual value as a target function and takes the maximum equipment installation capacity as a constraint to solve a capacity configuration scheme; the lower layer of the mathematical model takes the minimum annual operation and maintenance cost as a target function, and takes the distribution network power and reliable heating constraint, the equipment model constraint and the tie line power constraint as constraints to solve an operation scheduling scheme; and S3, the double-layer optimal configuration mathematical model is solved to obtain an optimal configuration scheme and a scheduling scheme of the system. According to the heat accumulating type electric heating optimal configuration method and device, on the premise of satisfying the transmission power constraint of the power distribution network, the heat storage equipment is fully utilized, and the energy consumption cost can be reduced while the power failure and non-stop heating are realized.

Description

technical field [0001] The invention relates to the technical field of power systems and automation thereof, in particular to a heat storage electric heating optimization configuration method and device considering distribution network power and heating. Background technique [0002] Heating in winter is the basic livelihood needs of residents in northern China. For a long time, coal-fired centralized heating has been mostly used. However, a large amount of coal-fired heating has brought huge environmental impact. Among the many clean heating methods, electric heating has been strongly supported and promoted by governments at all levels and enterprises because of its advantages of cleanness, environmental protection, strong controllability, and low energy supply pressure. [0003] However, after the large-scale "coal-to-electricity" transformation was implemented in Beijing, Tianjin, Hebei and other regions, the connection of a large number of electric heating equipment caus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24D11/00F24D19/10
CPCF24D11/004F24D19/1096
Inventor 陈晚晴杜翼项康利施鹏佳李益楠林昶咏李源非蔡期塬陈柯任郑楠
Owner STATE GRID FUJIAN POWER ELECTRIC CO ECONOMIC RES INST
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