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Sea shore power distributed optimization scheduling method considering coordination of reliability and economy

A technology that optimizes scheduling and reliability, applied in the electric power field, can solve problems such as rarely considering system reliability, and achieve the effects of promoting the consumption of renewable energy, improving reliability, and protecting information privacy

Inactive Publication Date: 2022-03-01
无锡学院
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Based on the above analysis, the existing offshore multi-platform power system research mainly focuses on the economics of the system, and seldom considers the reliability of the system.

Method used

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  • Sea shore power distributed optimization scheduling method considering coordination of reliability and economy
  • Sea shore power distributed optimization scheduling method considering coordination of reliability and economy
  • Sea shore power distributed optimization scheduling method considering coordination of reliability and economy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0181] S1: Description of the calculation system;

[0182] In this example, a test system including one shore power grid and two offshore interconnected platforms is used to verify the validity of the proposed model. The system structure is as follows figure 2 shown. The shore power grid includes 6 nodes, 2 conventional generator sets G1 and G3, and 1 centralized wind farm; offshore interconnection platforms 1 and 2 have 9 and 7 nodes respectively. The energy storage parameters are shown in Table 1 below.

[0183] Table 1 Energy storage parameters

[0184]

[0185] The initial values ​​of all coupling variables and Lagrangian multipliers are set to 0, and The initial values ​​of are set to 0.01, 1, 1 respectively, and the residual convergence margin is set to 0.1. The model is solved by Cplex12.7.1.

[0186] S2: Analysis of optimization results of offshore multi-platform-shore power collaborative system;

[0187] In order to verify the superiority of the coordinat...

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Abstract

The invention relates to an offshore shore power distributed optimization scheduling method considering reliability and economical efficiency coordination, and aims to research an offshore platform-shore power system collaborative energy supply system, construct a collaborative optimization scheduling model considering economical efficiency and reliability, and provide an ADMM-based distributed solution strategy. In order to ensure the convergence of a distributed algorithm, second-order cone relaxation is carried out on power flow constraints of a power distribution network and a natural gas network, so that an original model is converted into a convex optimization model. And finally, example analysis verifies the effectiveness of the offshore multi-platform-shore power optimization for improving the overall operation reliability of the system and promoting the consumption of renewable energy sources.

Description

technical field [0001] The invention relates to a distributed optimization dispatching method for offshore shore power considering the coordination of reliability and economy. It belongs to the field of electric power technology. Background technique [0002] Offshore oil and gas fields are generally far away from land and are developed through offshore platforms. The power supply scheme is usually a self-contained system with independent power supply. The power station located on the central platform and the production power platform transmits power to other platforms through submarine cables to form a radial independent transmission network with power generation, transmission, distribution and power load. . [0003] However, such a power system has a small capacity and a small reserve capacity, and there are problems such as poor power supply reliability, poor impact resistance, difficulty in starting large equipment, low power generation efficiency, and disadvantages fo...

Claims

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Application Information

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IPC IPC(8): H02J3/46H02J3/32H02J3/00G06Q10/06G06Q50/06
CPCH02J3/381H02J3/466H02J3/0075H02J3/008H02J3/32G06Q10/06312G06Q50/06H02J2203/20H02J2300/28
Inventor 田浩王俊赵二岗王可庆华国祥俞斌
Owner 无锡学院
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