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Regional comprehensive energy system optimal scheduling method considering flexible thermal load

An integrated energy system and optimized dispatching technology, applied in resources, instruments, data processing applications, etc., can solve problems such as thermal-to-electrical ratio mismatch, inability to effectively improve system flexibility, and underutilization of multi-energy complementary characteristics, so as to reduce system Operating costs, increased flexibility, and the effect of meeting energy demand

Pending Publication Date: 2020-03-17
ECONOMIC & TECH RES INST OF HUBEI ELECTRIC POWER COMPANY SGCC
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Problems solved by technology

At present, in the economic dispatching, energy storage equipment is mainly used to adjust the contradiction between the thermal power ratio mismatch between the source and the load. The complementary characteristics of multiple energy sources are not fully utilized, and the flexibility of system operation cannot be effectively improved.

Method used

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  • Regional comprehensive energy system optimal scheduling method considering flexible thermal load
  • Regional comprehensive energy system optimal scheduling method considering flexible thermal load
  • Regional comprehensive energy system optimal scheduling method considering flexible thermal load

Examples

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Embodiment 1

[0083] An optimal scheduling method for regional comprehensive energy systems considering flexible heat loads, which is carried out in sequence as follows:

[0084] Step 1. Obtain the basic data of the regional comprehensive energy system to be optimized, including the components and structure of the regional comprehensive energy system to be optimized, the load level at each time period, equipment parameters, and the purchase price of electricity and gas at each time period. The system structure is shown in figure 1 , see Table 1 for other data:

[0085] Table 1(a) 24h electricity and gas purchase prices

[0086]

[0087] Table 1(b) Total electricity load in each period of 24 hours

[0088]

[0089]

[0090] Table 1(c) Fan output at each time period in 24 hours

[0091]

[0092] Table 1(d) Photovoltaic output in each period of 24 hours

[0093]

[0094]

[0095] Table 1(e) Net electricity load in each time period of 24 hours

[0096]

[0097] Table 1(...

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Abstract

The invention discloses a regional comprehensive energy system optimal scheduling method considering a flexible thermal load. The regional comprehensive energy system optimal scheduling method comprises the following steps: firstly, acquiring basic data of a to-be-optimized regional comprehensive energy system; constructing a flexible thermal load model considering a user work and rest rule basedon the obtained basic data; establishing a day-ahead optimal scheduling model of the regional comprehensive energy system by taking minimum energy consumption cost as a target function and taking electric power balance constraint, thermal power balance constraint, energy storage equipment energy storage constraint and the like as constraint conditions based on the model; and then solving the optimal scheduling model to obtain optimized input and output of various devices in the regional comprehensive energy system and a user indoor temperature change curve, and finally scheduling the various devices according to the optimization scheme. According to the design, electric heating coordination scheduling is effectively achieved, and the flexibility of system operation is improved, and diversified energy using requirements of users are met, and the cost of system operation is reduced.

Description

technical field [0001] The invention belongs to the field of operation optimization of integrated energy systems in electric power systems, and in particular relates to an optimal scheduling method for regional integrated energy systems considering flexible heat loads. Background technique [0002] Energy is an important basis for economic and social development. With the large-scale consumption of fossil fuels, the crisis of energy and environment has become increasingly serious. As the main energy and power, electric energy has the advantages of easy generation, convenient transmission, convenient use, high utilization rate, and low pollution. It is imperative to build an integrated energy system with electricity as the core. At present, in the energy supply system composed of electric power system, thermal energy system and gas system, the methods of separate planning, separate design and independent operation are mostly adopted, and when problems arise, they are only sol...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/06312G06Q10/06315G06Q50/06
Inventor 郑旭罗凤章杜治杨东俊杨明方仍存廖爽蔡杰桑子夏
Owner ECONOMIC & TECH RES INST OF HUBEI ELECTRIC POWER COMPANY SGCC
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