偏(pian)航(hang)係(xi)統(tong)是(shi)水(shui)平(ping)軸(zhou)式(shi)風(feng)力(li)發(fa)電(dian)機(ji)組(zu)必(bi)不(bu)可(ke)少(shao)的(de)組(zu)成(cheng)係(xi)統(tong)之(zhi)一(yi)。偏(pian)航(hang)係(xi)統(tong)的(de)主(zhu)要(yao)作(zuo)用(yong)有(you)兩(liang)個(ge)。其(qi)一(yi)是(shi)與(yu)風(feng)力(li)發(fa)電(dian)機(ji)組(zu)的(de)控(kong)製(zhi)係(xi)統(tong)相(xiang)互(hu)配(pei)合(he)，使(shi)風(feng)力(li)發(fa)電(dian)機(ji)組(zu)的(de)風(feng)輪(lun)始(shi)終(zhong)處(chu)於(yu)迎(ying)風(feng)狀(zhuang)態(tai)，充(chong)分(fen)利(li)用(yong)風能，提高風力發電機組的發電效率；其(qi)二(er)是(shi)提(ti)供(gong)必(bi)要(yao)的(de)鎖(suo)緊(jin)力(li)矩(ju)，以(yi)保(bao)障(zhang)風(feng)力(li)發(fa)電(dian)機(ji)組(zu)的(de)安(an)全(quan)運(yun)行(xing)。風(feng)力(li)發(fa)電(dian)機(ji)組(zu)的(de)偏(pian)航(hang)係(xi)統(tong)一(yi)般(ban)分(fen)為(wei)主(zhu)動(dong)偏(pian)航(hang)係(xi)統(tong)和(he)被(bei)動(dong)偏(pian)航(hang)係(xi)統(tong)。被(bei)動(dong)偏(pian)航(hang)指(zhi)的(de)是(shi)依(yi)靠(kao)風(feng)力(li)通(tong)過(guo)相(xiang)關(guan)機(ji)構(gou)完(wan)成(cheng)機(ji)組(zu)風(feng)輪(lun)對(dui)風(feng)動(dong)作(zuo)的(de)偏(pian)航(hang)方(fang)式(shi)，常(chang)見(jian)的(de)有(you)尾(wei)舵(duo)、舵輪和下風向三種；主(zhu)動(dong)偏(pian)航(hang)指(zhi)的(de)是(shi)采(cai)用(yong)電(dian)力(li)或(huo)液(ye)壓(ya)拖(tuo)動(dong)來(lai)完(wan)成(cheng)對(dui)風(feng)動(dong)作(zuo)的(de)偏(pian)航(hang)方(fang)式(shi)，常(chang)見(jian)的(de)有(you)齒(chi)輪(lun)驅(qu)動(dong)和(he)滑(hua)動(dong)兩(liang)種(zhong)形(xing)式(shi)。對(dui)於(yu)並(bing)網(wang)型(xing)風(feng)力(li)發(fa)電(dian)機(ji)組(zu)來(lai)說(shuo)，通(tong)常(chang)都(dou)采(cai)用(yong)主(zhu)動(dong)偏(pian)航(hang)的(de)齒(chi)輪(lun)驅(qu)動(dong)形(xing)式(shi)。
1．偏航係統的技術要求
1.1. 環境條件
在進行偏航係統的設計時，必須考慮的環境條件如下：
1). 溫度；
2). 濕度；
3). 陽光輻射；4). 雨、冰雹、雪和冰；
5). 化學活性物質；
6). 機械活動微粒；
7). 鹽霧。風電材料設備
8). 近海環境需要考慮附加特殊條件。
yinggenjudianxingzhihuokebiantiaojiandexianzhi，quedingshejiyongdeqihoutiaojian。xuanzeshejizhishi，yingkaolvjizhongqihoutiaojiantongshichuxiandekenengxing。zaiyunianlunzhouqixiangduiyingdezhengchangxianzhifanweinei，qihoutiaojiandebianhuayingbuyingxiangsuoshejidefenglifadianjizupianhangxitongdezhengchangyunxing。
1.2. 電纜
為wei保bao證zheng機ji組zu懸xuan垂chui部bu分fen電dian纜lan不bu至zhi於yu產chan生sheng過guo度du的de紐niu絞jiao而er使shi電dian纜lan斷duan裂lie失shi效xiao，必bi須xu使shi電dian纜lan有you足zu夠gou的de懸xuan垂chui量liang，在zai設she計ji上shang要yao采cai用yong冗rong餘yu設she計ji。電dian纜lan懸xuan垂chui量liang的de多duo少shao是shi根gen據ju電dian纜lan所suo允yun許xu的de扭niu轉zhuan角jiao度du確que定ding的de。
1.3. 阻尼
為(wei)避(bi)免(mian)風(feng)力(li)發(fa)電(dian)機(ji)組(zu)在(zai)偏(pian)航(hang)過(guo)程(cheng)中(zhong)產(chan)生(sheng)過(guo)大(da)的(de)振(zhen)動(dong)而(er)造(zao)成(cheng)整(zheng)機(ji)的(de)共(gong)振(zhen)，偏(pian)航(hang)係(xi)統(tong)在(zai)機(ji)組(zu)偏(pian)航(hang)時(shi)必(bi)須(xu)具(ju)有(you)合(he)適(shi)的(de)阻(zu)尼(ni)力(li)矩(ju)。阻(zu)尼(ni)力(li)矩(ju)的(de)大(da)小(xiao)要(yao)根(gen)據(ju)機(ji)艙(cang)和(he)風(feng)輪(lun)質(zhi)量(liang)總(zong)和(he)的(de)慣(guan)性(xing)力(li)矩(ju)來(lai)確(que)定(ding)。其(qi)基(ji)本(ben)的(de)確(que)定(ding)原(yuan)則(ze)為(wei)確(que)保(bao)風(feng)力(li)發(fa)電(dian)機(ji)組(zu)在(zai)偏(pian)航(hang)時(shi)應(ying)動(dong)作(zuo)平(ping)穩(wen)順(shun)暢(chang)不(bu)產(chan)生(sheng)振(zhen)動(dong)。隻(zhi)有(you)在(zai)阻(zu)尼(ni)力(li)矩(ju)的(de)作(zuo)用(yong)下(xia)，機(ji)組(zu)的(de)風(feng)輪(lun)才(cai)能(neng)夠(gou)定(ding)位(wei)準(zhun)確(que)，充(chong)分(fen)利(li)用(yong)風(feng)能(neng)進(jin)行(xing)發(fa)電(dian)。
1.4. 解纜和紐纜保護
jielanheniulanbaohushifenglifadianjizudepianhangxitongsuobixujuyoudezhuyaogongneng。pianhangxitongdepianhangdongzuohuidaozhijicanghetajiazhijiandelianjiedianlanfashengniujiao，suoyizaipianhangxitongzhongyingshezhiyufangxiangyouguandejishuzhuangzhihuoleisidechengxuduidianlandeniujiaochengdujinxingjiance。yibanduiyuzhudongpianhangxitonglaishuo，jiancezhuangzhihuoleisidechengxuyingzaidianlandadaoguidingdeniujiaojiaoduzhiqianfajielanxinhao；對dui於yu被bei動dong偏pian航hang係xi統tong檢jian測ce裝zhuang置zhi或huo類lei似si的de程cheng序xu應ying在zai電dian纜lan達da到dao危wei險xian的de紐niu絞jiao角jiao度du之zhi前qian禁jin止zhi機ji艙cang繼ji續xu同tong向xiang旋xuan轉zhuan，並bing進jin行xing人ren工gong解jie纜lan。偏pian航hang係xi統tong的de解jie纜lan一yi般ban分fen為wei初chu級ji解jie纜lan和he終zhong極ji解jie纜lan。初chu級ji解jie纜lan是shi在zai一yi定ding的de條tiao件jian下xia進jin行xing的de，一yi般ban與yu偏pian航hang圈quan數shu和he風feng速su相xiang關guan。紐niu纜lan保bao護hu裝zhuang置zhi是shi風feng力li發fa電dian機ji組zu偏pian航hang係xi統tong必bi須xu具ju有you的de裝zhuang置zhi，這zhe個ge裝zhuang置zhi的de控kong製zhi邏luo輯ji應ying具ju有you最zui高gao級ji別bie的de權quan限xian，一yi旦dan這zhe個ge裝zhuang置zhi被bei觸chu發fa，則ze風feng力li發fa電dian機ji組zu必bi須xu進jin行xing緊jin急ji停ting機ji。