A two-stage capacity allocation method of an integrated energy system considering node heat price

A technology of integrated energy system and capacity allocation, which is applied in the field of two-stage capacity allocation of integrated energy system considering node heat price, and can solve the problem of ignoring the coordination and dispatching role of regional heat network.

Active Publication Date: 2019-03-08
LIYANG RES INST OF SOUTHEAST UNIV +1
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Problems solved by technology

In the capacity allocation method of cogeneration equipment, most of the literature mainly studies the capacity allocation of a single cogeneration equipment, ignoring the role of coordination and scheduling of regional heating networks

Method used

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  • A two-stage capacity allocation method of an integrated energy system considering node heat price
  • A two-stage capacity allocation method of an integrated energy system considering node heat price
  • A two-stage capacity allocation method of an integrated energy system considering node heat price

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Embodiment Construction

[0111] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0112] Such as figure 1 As shown, the integrated energy system includes multiple combined heat and power systems, and each combined heat and power system is interconnected through a district heating network.

[0113] Such as figure 2 As shown, a typical combined heat and power system includes: combined heat and power equipment (gas turbine), gas boiler, waste heat recovery device, and energy storage equipment such as batteries and heat storage tanks, which are connected through the grid and gas grid; electricity is generated by consuming natural gas and thermal energy.

[0114] Such as image 3 As shown, the present invention proposes a two-stage planning method for an integrated energy system that takes into account node heat prices based on district heating networks. The objective function of the first stage i...

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Abstract

The invention discloses a two-stage capacity allocation method of an integrated energy system considering node heat price, which comprises the following steps of establishing a regional heating network operation constraint model; in the first stage, based on the system parameters and load data, establishing the objective function and corresponding constraint conditions of optimal capacity allocation of multiple cogeneration subsystems; establishing the temperature correction equation of regional heating network, and establishing the nodal heat price equation based on the power flow tracing method; in the second stage, based on the electricity price and node heat price, establishing the annual energy purchase cost objective function and corresponding constraint conditions considering the demand side response; establishing the iterative solution process of two-stage planning method for integrated energy system, and iteratively obtaining the optimal allocation capacity. At first, the method of the invention proposes a calculation method of the node heat price, and is used in the demand-side response, so that the influence of the optimization operation of the system and the demand-sideresponse can be fully considered in the planning stage.

Description

technical field [0001] The invention belongs to the application field of integrated energy systems, and specifically relates to a two-stage capacity allocation method for an integrated energy system taking into account node heat prices. Background technique [0002] The integrated energy system takes the power system as the core, combines cooling, heating, gas supply and other subsystems, and realizes the cascade utilization of energy as the basic principle, and performs various types of energy conversion, distribution and storage through joint power supply and energy storage equipment. Multi-energy flow coupled integrated system. Cogeneration equipment can use waste heat from power generation for heating, which fully embodies the principle of energy cascade utilization. As the core equipment in the comprehensive energy system, it can be widely studied. In the capacity allocation method of cogeneration equipment, most literatures mainly focus on the capacity allocation rese...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q10/06G06Q50/06
CPCG06Q10/04G06Q10/06312G06Q50/06
Inventor 顾伟潘光胜吴志周苏洋
Owner LIYANG RES INST OF SOUTHEAST UNIV
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