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Evaluation method for wind power carrying capacity of offshore oil and gas field power grid considering electrical coupling constraints

An electrical coupling, oil and gas field technology, used in electrical components, computing, wind power generation, etc.

Active Publication Date: 2022-07-08
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above-mentioned defects of the prior art, the present invention provides a method for evaluating the wind power carrying capacity of offshore oil and gas field power grids taking into account electrical coupling constraints, aiming to solve the problem of isolated islands in the prior art that can effectively deal with the randomness and volatility of wind power. Problems in the evaluation method of wind power carrying capacity of oil and gas field platforms

Method used

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  • Evaluation method for wind power carrying capacity of offshore oil and gas field power grid considering electrical coupling constraints
  • Evaluation method for wind power carrying capacity of offshore oil and gas field power grid considering electrical coupling constraints
  • Evaluation method for wind power carrying capacity of offshore oil and gas field power grid considering electrical coupling constraints

Examples

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Embodiment 1

[0040] The method for evaluating the wind power carrying capacity of the power grid of offshore oil and gas fields provided by the present invention, which takes into account electrical coupling constraints, can be applied to the terminal, and the terminal can evaluate the offshore oil and gas fields through the method for evaluating the wind power carrying capacity of offshore oil and gas field power grids that take into account electrical coupling constraints provided by the present invention. Therefore, it can provide reference data for the construction plan of wind power facilities or the allocation plan of wind power resources before the introduction of wind power into the grid of offshore oil and gas fields.

[0041] like figure 1 As shown, an embodiment of the method for evaluating the wind power carrying capacity of an offshore oil and gas field power grid considering electrical coupling constraints includes the steps of:

[0042] S100. Determine the maximum upward slo...

example 2

[0144] The specific settings and verification results of Example 1 and Example 2 are described below.

example 1

[0146] Figure 7 Among them, the island microgrid system includes four 4.5MW gas generators (G1~G4), and the fuel gas can be natural gas, associated gas or a mixture of the two. The total system load is 5.82MW, and the reactive power requirement is about 3.5MVar, excluding two gas compressors. Because the gas compressor is a coupled element of the microgrid and the gas grid, the power demand varies with airflow fluctuations caused by changes in the output of the offshore wind power. For reactive power compensation of the system, a static var generator (SVG) is installed on platform 4. The fuel gas for the gas generators on platforms 1 and 2 is taken from nodes 1 and 7 of the gas grid.

[0147] The gas network system includes two gas compressors (C1~C2) and two gas sources (S1~S2). The gas compressors are connected to busbars 2 and 3 of the microgrid, respectively. S1 is the natural gas source, which mainly meets the needs of the natural gas plant; S2 is the associated gas ...

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Abstract

The invention discloses a method for evaluating the wind power carrying capacity of an offshore oil and gas field power grid taking into account electrical coupling constraints. The invention builds a target linear programming model for the uncertainty and volatility of wind power, and the objective function result of the model is the maximum wind power carrying capacity of the power grid system. The constraints of the model include the flexibility constraints of gas-fired power generation and wind power collaborative ramping, the collaborative flexibility constraints of gas-fired power generation capacity and wind power capacity, the operational characteristics constraints of gas-fired generator sets, the operational characteristics constraints of gas-fired compressors, and the grid-connected operational characteristics of wind turbines. constraint. The method provided by the invention can realize the risk bearing capacity evaluation of the power grid of the offshore oil and gas field which can effectively cope with the uncertainty and volatility of wind power.

Description

technical field [0001] The invention relates to the technical field of new energy, in particular to a method for evaluating the wind power carrying capacity of an offshore oil and gas field power grid taking into account electrical coupling constraints. Background technique [0002] In offshore oil and gas production platforms, in order to prevent operators from laying long-distance transmission lines to supply power through shore power, it is integrated with offshore wind power generation to form an islanded offshore oil and gas field power supply system. The integration of wind power generation also saves the cost of fossil fuels. Offshore oil and gas fields are powered by gas generators and wind turbines, operating independently as an island microgrid. [0003] In the process of integrating wind power generation, it is necessary to first evaluate the wind power carrying capacity of the isolated island offshore oil and gas field microgrid after integrating wind power gener...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06G06Q50/06H02J3/00H02J3/38
CPCG06Q10/0639G06Q10/06313G06Q50/06H02J3/00H02J3/381H02J2203/10H02J2203/20H02J2300/28Y02E10/76
Inventor 徐宪东刘静贾宏杰
Owner TIANJIN UNIV