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Method for heuristically calculating random optimal power flows of electric-pneumatic interconnected systems

An optimal power flow and interconnected system technology, applied in computing, instrumentation, data processing applications, etc., can solve problems such as unsatisfactory solution effects

Inactive Publication Date: 2017-12-08
HOHAI UNIV
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Problems solved by technology

[0005] Purpose of the invention: The present invention proposes a random optimal power flow heuristic calculation method for the electrical-gas interconnection system aiming at the unsatisfactory solution effect of the existing methods

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  • Method for heuristically calculating random optimal power flows of electric-pneumatic interconnected systems
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  • Method for heuristically calculating random optimal power flows of electric-pneumatic interconnected systems

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[0097] Specific implementation plan

[0098] The technical process of the invention will be described in detail below in conjunction with the drawings:

[0099] A heuristic calculation method for stochastic optimal power flow of electricity-gas interconnected system based on chance-constrained programming, including the following steps:

[0100] 1) Establish an electricity-gas interconnected integrated energy system model, including: power system model, natural gas system model and coupling element model. The natural gas system model includes pipeline flow equation, compressor energy consumption equation and node flow balance equation, and the coupling element is a gas turbine ;

[0101] 2) Establish a stochastic optimal power flow model for the electricity-gas interconnected integrated energy system based on chance constraint programming, including: objective function, deterministic constraint and chance constraint, among which deterministic constraints include power system power bal...

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Abstract

The invention discloses a method for heuristically calculating random optimal power flows of electric-pneumatic interconnected systems. The method comprises the following steps of: firstly considering a plurality of randomness on the basis of an electric-pneumatic interconnected integrated energy system model, and importing chance constraint to establish a chance constraint planning-based electric-pneumatic interconnected integrated energy system random power flow model; and introducing a cumulant method and interior point method-based heuristic algorithm, converting the chance constraint into certainty constraint through a cumulant method and a probability power flow method of Cornish-Fisher series, and iteratively solving the model. Example calculation results indicate that the cumulant method and interior point method-based heuristic algorithm is capable of efficiently and reliably solving change constraint planning-based electric-pneumatic interconnected integrated energy system random power flow models.

Description

Technical field [0001] The invention relates to a stochastic optimal power flow heuristic calculation method for an electricity-gas interconnection system, which belongs to the field of integrated energy system operation scheduling. technical background [0002] Energy Internet (EI) has become the consensus of the whole society. Energy Internet is a complex multi-network flow system formed by the close coupling of power system, natural gas system, transportation system and other systems. Among them, due to the many advantages of natural gas and the development of combined cycle turbine technology, the natural gas system is the closest to the power system, making the electricity-gas interconnected integrated energy system the core of the energy Internet. [0003] The optimal power flow is the foundation of the economic dispatch, planning and operation, reliability analysis and other issues of the electricity-gas interconnected integrated energy system. However, the current researc...

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Application Information

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IPC IPC(8): G06Q10/04G06Q50/06
CPCG06Q10/04G06Q50/06
Inventor 卫志农张思德孙国强臧海祥陈胜陈霜
Owner HOHAI UNIV