Modeling and system planning method for gas power grid combined multi-region comprehensive energy system

A technology for integrated energy system and system planning, which is applied in the field of gas grid combined multi-region integrated energy system modeling and system planning

Inactive Publication Date: 2019-07-05
NANJING INST OF TECH
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Problems solved by technology

[0004] The present invention provides a method for modeling and system planning of a multi-regional integrated energy system combined with a gas grid, to solve complex grid-gas grid combined multi-regional integrated energy system planning problems quickly and effectively, and to provide reference for actual operation scheduling

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  • Modeling and system planning method for gas power grid combined multi-region comprehensive energy system
  • Modeling and system planning method for gas power grid combined multi-region comprehensive energy system
  • Modeling and system planning method for gas power grid combined multi-region comprehensive energy system

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Embodiment Construction

[0106] The present invention will be specifically described below in conjunction with the accompanying drawings.

[0107] as attached figure 1 As shown, a gas grid joint multi-regional comprehensive energy system modeling and system planning method includes the following steps:

[0108] Step 1: Establish a multi-regional integrated energy system model that includes the grid model and constraints, the gas grid model and constraints, and the grid-gas grid coupling model and constraints. Specifically:

[0109] S11. Establish grid model and constraints: the grid model and constraints shown specifically include models and constraints of conventional units, models and constraints of gas turbines, models and constraints of power storage devices, grid power balance constraints, grid power flow constraints, node voltages and lines power constraints.

[0110] The model and constraints of the conventional unit shown include the output limit constraint of the conventional unit, the ramp-...

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Abstract

The invention particularly relates to a modeling and system planning method for a gas power grid combined multi-region comprehensive energy system. The method comprises the following steps: S1, establishing a coupling model of a power grid, a gas net, and a power grid-gas net and a multi-region comprehensive energy system model combined with constrained gas net-power grid; S2, establishing a planning model for optimal economic operation of a gas net-power grid combined multi-region comprehensive energy system, aiming at minimizing the total system operation cost; S3, converting the mixed integer nonlinear programming model in the model into a mixed integer second-order cone programming model by using a second-order cone programming method; performing nonlinear quantity linearization processing in the incremental piecewise linearization method model; and therefore, a large-scale mixed integer second-order cone programming model is established by taking the minimum total system operationcost as a target; and S4, a commercial planning problem solver is adopted to solve the large-scale mixed integer second-order cone programming model, and the optimal output and the total system operation cost of each unit in the multi-region comprehensive energy system are obtained.

Description

technical field [0001] The invention relates to a planning method for an electric power system and its combined system, in particular to a modeling and system planning method for a combined multi-area integrated energy system of a gas grid. Background technique [0002] With the emergence of issues such as the global environment and energy crisis, the development of clean energy and renewable energy is currently the most important strategic choice for sustainable development in all countries. In recent years, wind power and photovoltaic power generation have developed particularly rapidly. However, due to the characteristics of large fluctuations and uncertainties in wind power generation and photovoltaic power generation, it poses challenges to the stability of the power system. Gas turbine units can quickly respond to fluctuations in new energy output, and compared with traditional coal-fired units, they also have the characteristics of less environmental pollution, which...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/0637G06Q10/06313G06Q50/06
Inventor 叶宇成凌佳杰张彤阳王佳钰陈济凡李超杰谢宗宸张永一石子敬
Owner NANJING INST OF TECH
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