公开(公告)号：US20130207393A1

公开(公告)日：2013-08-15

申请号：US13749251

申请日：2013-01-24

Applicant: REPOWER SYSTEMS SE

Inventor： Heinz-Hermann LETAS

IPC: H02P9/04

CPC classification number: H02P9/04 ,  F03D9/257 ,  G01R19/2513 ,  G01R31/42 ,  H02J3/01 ,  H02J3/1842 ,  H02J3/386 ,  Y02E10/72 ,  Y02E10/763 ,  Y02E40/22 ,  Y02E40/40

Abstract: A harmonic predictor for a wind farm comprising at least two wind turbines, each having a generator with a converter for generating electrical energy. The harmonic predictor determines the harmonic component expected from the wind farm in order to limit the harmonic component to a harmonic limit. The harmonic predictor comprises a calculation module, an iteration module and a summing module. The calculation module calculates a complex mean value over at least one period of the harmonic component of one of the wind turbines and determines a first equivalent vector therefrom. The iteration module successively connects the calculation module to at least one other of the wind turbines to form at least one second equivalent vector. The summing module sums the equivalent vectors to form a total vector and compares the total vector with the harmonic limit.

Abstract translation: 一种用于风电场的谐波预测器，包括至少两个风力涡轮机，每个风力涡轮机具有带有用于产生电能的转换器的发电机。 谐波预测器确定风力发电场预期的谐波分量，以将谐波分量限制到谐波极限。 谐波预测器包括计算模块，迭代模块和求和模块。 计算模块在风力涡轮机之一的谐波分量的至少一个周期内计算复平均值，并从其确定第一等效矢量。 迭代模块将计算模块连续地连接到至少另一个风力涡轮机，以形成至少一个第二等效矢量。 求和模块将等效向量相加以形成总向量，并将总矢量与谐波极限进行比较。