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Grid-connected operation electric heating interconnection comprehensive energy system power flow calculation method

An integrated energy system and power flow calculation technology, applied in the field of multi-energy complementary integrated energy systems, can solve problems such as the lack of power flow calculations in electric-heat interconnected integrated energy systems, and achieve the effect of improving flexibility and promoting integration

Inactive Publication Date: 2019-02-15
HOHAI UNIV
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Problems solved by technology

[0004] Purpose of the invention: The purpose of the invention is to solve the problem of relative lack of power flow calculation in the existing electric-heat interconnection integrated energy system

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  • Grid-connected operation electric heating interconnection comprehensive energy system power flow calculation method
  • Grid-connected operation electric heating interconnection comprehensive energy system power flow calculation method
  • Grid-connected operation electric heating interconnection comprehensive energy system power flow calculation method

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Embodiment Construction

[0054] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.

[0055] A power flow calculation method for a grid-connected electricity-heat interconnection comprehensive energy system, comprising the following steps:

[0056] Step 1: Study the coupling and interaction mechanism between the power system and the thermal system, and establish coupling element models, including: CHP unit model, heat pump model, and circulation pump model.

[0057] Step 2: Incorporate the power system and thermal system into a unified analysis and decision-making system, and establish a comprehensive energy system model of electric heating interconnection, including: power system model, thermal system hydraulic model and thermal model;

[0058] Step 3: The Newton-Raphson method is used to calculate the power flow of the grid-connected electrothermal interconnection integrated energy system, and analyze the influence of couplin...

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Abstract

The invention discloses a grid-connected operation electric heating interconnection comprehensive energy system power flow calculation method. The method comprises the following steps of firstly, making researching on the coupling and interaction mechanism between a power system and a thermodynamic system, establishing a combined heat and power unit, a heat pump, a circulating pump and other coupling element models, then enabling the power system and the thermodynamic system to be combined into a unified analysis decision system, establishing an electric heating interconnection comprehensive energy system model, and finally adopting a Newton-Raphson Method to calculate the system power flow of the grid-connected operation. The calculation analysis result verifies the feasibility and effectiveness of the method provided by the invention.

Description

technical field [0001] The invention relates to a power flow calculation method for a grid-connected electrothermal interconnection comprehensive energy system, belonging to the field of multi-energy complementary comprehensive energy systems. Background technique [0002] The power system and thermal system are important energy supply systems. In the traditional sense, they are basically independent of each other, and are independently planned, operated and managed by different units and departments. The interconnection of power system and thermal system can release the potential benefits of the integrated energy system, thereby bringing new opportunities for changing energy utilization patterns and promoting sustainable economic and social development. In the face of the adjustment of energy structure in today's society and the new situation of increasing pressure on energy conservation and emission reduction, an integrated energy system with electric heating interconnecti...

Claims

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Application Information

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IPC IPC(8): H02J3/06
CPCH02J3/06
Inventor 卫志农孙娟
Owner HOHAI UNIV
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