Redundancy optimization method for current collection system of large offshore wind plant

Abstract

The invention relates to a redundancy optimization method for a current collection system of a large offshore wind plant. The method comprises the steps that (1) according to fan coordinate, submarinecable and electrical equipment data of the offshore wind plant, a redundancy structure of the current collection system of the offshore wind plant is designed; (2) according to a design result of theredundancy structure of the current collection system of the offshore wind plant, redundancy of the current collection system is defined to represent the redundant degree of the redundancy structureof the current collection system, and all cost of the current collection system under different redundancy is calculated; and (3) according to all the cost, full-life-cycle cost of the current collection system of the offshore wind plant under different redundancy is calculated, and minimum full-life-cycle cost is used as optimal design of the redundancy of the current collection system. Comparedwith the prior art, the method has the advantages that reliability is high, economical efficiency is high, and different redundancy is considered.

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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