Power Curtailment Analysis of DC Series–Parallel Offshore Wind Farms

IF 1.3 4区工程技术 Q3 CONSTRUCTION & BUILDING TECHNOLOGY

Wind and Structures Pub Date : 2022-06-28 DOI:10.3390/wind2030025

P. Lakshmanan

引用次数: 0

Abstract

This paper analyzes one of the most important power capture challenges of the DC series–parallel collection system, called the power curtailment losses. The wind speed difference between the series-connected turbines causes over- and under-voltage conditions in the output voltage of the MVDC (medium-voltage DC) converters of the wind turbine. The power curtailment losses caused by the upper-voltage tolerance levels of the MVDC converters of the wind turbines are analyzed considering a redundancy-based upper-voltage limiting condition. This analysis emphasizes the importance of choosing suitable voltage tolerance levels for the MVDC converters of wind turbines based on the wind farm configuration. The annual energy curtailment losses are quantified and evaluated by a comparative case study performed on a DC series–parallel-connected wind farm rated at 200 MW with the redundancy-based upper-voltage limiting condition.

查看原文本刊更多论文

直流串并联海上风电场的限电分析

本文分析了直流串并联集电系统中最重要的电能捕获挑战之一，即弃电损耗。串联涡轮机之间的风速差异导致风力涡轮机的MVDC(中压直流)变流器输出电压的过压和欠压情况。考虑基于冗余的高压限制条件，分析了风电机组MVDC变流器的上容限等级造成的限电损失。该分析强调了根据风电场的配置为风力涡轮机的MVDC变流器选择合适的电压容限等级的重要性。通过对额定功率为200mw的直流串并联风电场进行了基于冗余的高压限制条件的对比案例研究，量化并评估了年度弃电损失。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Wind and Structures 工程技术-工程：土木

CiteScore

2.70

自引率

18.80%

发文量

审稿时长

>12 weeks

期刊介绍： The WIND AND STRUCTURES, An International Journal, aims at: - Major publication channel for research in the general area of wind and structural engineering, - Wider distribution at more affordable subscription rates; - Faster reviewing and publication for manuscripts submitted. The main theme of the Journal is the wind effects on structures. Areas covered by the journal include: Wind loads and structural response, Bluff-body aerodynamics, Computational method, Wind tunnel modeling, Local wind environment, Codes and regulations, Wind effects on large scale structures.