A Redundancy Optimization Method for Collecting System of Large Offshore Wind Farm

Abstract

The invention relates to a method for optimizing the redundancy of a large-scale offshore wind farm power collection system, comprising the following steps: 1) designing a redundant structure of the offshore wind farm power collection system according to the wind turbine coordinates, submarine cables and electrical equipment data of the offshore wind farm; 2) According to the design results of the redundant structure of the offshore wind farm collector system, define the redundancy degree of the collector system to indicate the redundancy degree of the redundant structure of the collector system, and calculate the various costs of the collector system under different redundancy degrees; 3) According to the various costs, calculate the full life cycle cost of the offshore wind farm power collection system under different redundancies, and the design with the lowest life cycle cost is the optimal design of the power collection system redundancy. Compared with the prior art, the invention has the advantages of high reliability, good economy, consideration of different redundancy and the like.

Description

technical field [0001] The invention relates to the design field of wind farm power collection systems, in particular to a redundancy optimization method for large offshore wind farm power collection systems. Background technique [0002] The power collection system is the lifeblood of offshore wind farms and the key to safe and reliable operation of offshore wind farms. With the large-scale development of offshore wind power and the development of deep sea, more uncertain factors in the ocean have put forward higher requirements for the reliability of the power collection system. It is urgent to propose a new collection system that is more suitable for the development trend of deep sea wind power Electrical system optimization models and methods. [0003] Some experts and scholars have done some research on the optimization model of the offshore wind farm power collection system. Fu Yang, Wu Jing and others published an article titled: Topology Structure Optimization and ...

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Problems solved by technology

[0004] At present, these models focus on the existing radial structure or ring structure in engineering. The radial structure has lower cost but lower reliability, and the ring structure has higher reliability but higher cost.

Yang Jin, John O'REILLY, and John E.FLETCHER published an article titled: Method for Improving the Reliability of Offshore Wind Farms Based on Redundancy Analysis in Electric Power System Automation. reliability, but did not give the degree of redundancy and the specific optimization model and method

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