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Optimal scheduling model for park-level comprehensive energy system

An integrated energy system and optimized dispatching technology, applied in the field of energy technology and economy, can solve problems that affect the reliability of system energy supply, low equipment utilization, and affect the economy of system energy supply, etc.

Active Publication Date: 2019-03-15
STATE GRID ENERGY RES INST +1
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Problems solved by technology

[0003] There are certain drawbacks in the use of the existing park-level comprehensive energy system optimal dispatch model. First, the current research generally fails to make full use of the differences among energy types, such as the differences in the inherent characteristics of cold, heat, and electricity. More redundancy is prone to occur during equipment construction, which leads to low utilization rate of some equipment, which affects the energy supply economy of the system, and, in extreme cases such as insufficient energy supply, cannot make full use of the energy reliability requirements of different energy types The difference of the system affects the overall energy supply reliability of the system. Therefore, we propose a park-level comprehensive energy system optimal scheduling model

Method used

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  • Optimal scheduling model for park-level comprehensive energy system
  • Optimal scheduling model for park-level comprehensive energy system
  • Optimal scheduling model for park-level comprehensive energy system

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Embodiment 1

[0127] Such as figure 1 As shown, a park-level comprehensive energy system optimization scheduling model includes an energy supply technology module, which models the park’s energy supply technology from the aspects of energy production, conversion, transmission, and storage; the terminal energy demand module, The terminal energy demand module describes the three types of industries and the three types of terminal energy demand of electricity, heat and cooling in residents' life; the system operation optimization module, under the constraints of the constraints, seeks the lowest total cost of system operation Optimal solution;

[0128] The energy supply technology module includes energy production technology, energy conversion technology, energy transmission technology and energy storage technology;

[0129] Energy production technology refers to technologies that use other forms of energy as inputs to instantly produce electricity, heat and cold as terminal energy, including...

Embodiment 2

[0231] Such as Figure 1-6 As shown, a park-level comprehensive energy system optimal scheduling model includes: energy supply technology module, which models the park’s energy supply technology from the aspects of energy production, conversion, transmission and storage; terminal energy demand module , the terminal energy demand module describes the three types of industries and the three types of terminal energy demand of residents: electricity, heat and cooling; the system operation optimization module, the system operation optimization module seeks to minimize the total cost of system operation under the constraints of constraints the optimal solution; the energy supply technology module includes energy production technology, energy conversion technology, energy transmission technology and energy storage technology; the energy terminal demand module includes the primary industry, secondary industry, tertiary industry and domestic electricity, heat and cooling Requirements; ...

Embodiment 3

[0239] Such as Figure 1-6 As shown, a park-level comprehensive energy system optimal dispatching model, a small park is selected as an example for analysis, its typical daily residential energy load, commercial energy load and distributed photovoltaic power generation output curves are as follows: figure 2 shown. Other energy supply units and key parameters are shown in Table 1.

[0240] Table 1 Energy supply units and key parameters

[0241]

[0242] Assuming that the regional natural gas supply is sufficient, the natural gas price is 3.5 yuan / m 3 , burning 1 cubic meter of natural gas produces a calorific value of 10.6kWh, which is converted into a unit calorific value price of 0.330 yuan / (kWh). Based on the priority consumption of distributed photovoltaics in the park, the cost of solar abandonment is set at 1 yuan / (kWh). Time-of-use tariffs such as image 3 As shown, and use this as the heat storage reward and punishment cost, the heating comfort margin is set to ...

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Abstract

The invention discloses an optimal scheduling model for a park-level comprehensive energy system. The optimal scheduling model comprises an energy supply technology module, which models the park energy supply technology from the aspects of energy production, conversion, conveying, storage and the like; a terminal energy demand module, which depicts three types of industries and three terminal energy demands of cooling, heating and power of lives of residents; and a system operation optimization module. According to the optimal scheduling model for the park-level comprehensive energy system provided by the invention, firstly, load shedding sequence processing can be carried out according to reliability requirements under extreme conditions such as energy supply shortage and the like, and the energy supply reliability of important users such as hospitals is guaranteed; secondly, energy storage can be carried out in the electricity low valley period, and the renewable energy consumption capacity of a system is increased; and finally, stored energy can be used for energy supply during the heat supply peak period to perform thermoelectric decoupling, so that the flexibility of the system is enhanced, and a better application prospect is brought.

Description

technical field [0001] The invention relates to the field of energy technology and economy, in particular to a park-level integrated energy system optimal dispatch model. Background technique [0002] With the continuous development of economy and society, my country's urbanization process is accelerating. At present, my country's urban energy is facing problems such as tight supply of energy resources and low comprehensive utilization efficiency. As an important platform for urban economic structure adjustment and leapfrog development, the park is Economical, reliable and efficient operation of energy systems is of great significance. [0003] There are certain drawbacks in the use of the existing park-level comprehensive energy system optimal dispatch model. First, the current research generally fails to make full use of the differences among energy types, such as the differences in the inherent characteristics of cold, heat, and electricity. More redundancy is prone to oc...

Claims

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Application Information

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IPC IPC(8): H02J3/46H02J3/32
CPCH02J3/32H02J3/46H02J2203/20Y02P80/10Y02E70/30
Inventor 鲁刚王晓晨王耀华刘俊张富强金艳鸣伍声宇徐沈智王赛一华月申
Owner STATE GRID ENERGY RES INST
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