机械及行业设备
CACR-SR60BB1BM
发布时间:2016-01-04 10:24:47 产品编号:GY-5-70400432  分享
价格:10.00/件
品牌:CACR-SR60BB1BM
起订:1件
供应:100件
发货:3天内
信息标签:CACR-SR60BB1BM,供应,机械及行业设备

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偏航系统的原理框图如图 1,工作原理为:通 过风传感器将风向的变化传递到偏航电机控制回路 的处理器里,判断后决定偏航方向和偏航角度,** 终达到对风目的。为减少偏航时的陀螺力矩,电机转速将通过同轴联接的减速器减速后,将偏航力矩 作用在回转体大齿轮上,带动风轮偏航对风。当对 风结束后,风传感器失去电信号,电机停止工作, 偏航过程结束。

2偏航控制系统设计

偏航系统可分为被动偏航和主动偏航 2 种类型,大型风力发电机组中采用主动偏航控制,即由 调向电机将风轮调至迎风位置。主动偏航需要测量 风向, 根据风向和风轮平面法线方向确定调向方向, 虽结构复杂,但迎风过程可控。

2.1 硬件系统设计

系统主电路采用 1 片 AT89C52 单片机和 3 片8255A 可编程并行 I/O 接口芯片组成,同时配以适 当的接口作为输入输出通道, 见图 2。 采用 MCS-51 单片机 AT89C52。 采用 2 片 8255A 分别用于信号输 入和风向传感器输入,第 3 片 8255A 作为信号的输 出口。接口分配需要根据偏航控制器的特点以及方 便连线。考虑到风力发电机组的工作条件恶劣,气 候环境复杂,并根据偏航系统的控制精度要求与特 点,选用光电型风传感器。测风装置包括风速和风 向传感器,以及横杆、电源、电缆元件。可测量 0~360°范围,符合 EMC 标准,内置电子捕获 8 位格 雷码和转换装置,携带变送器带加热,能够适合恶 劣环境的风速风向测量。

风电控制系统网络结构图

WPCS风电控制系统包括现场风力发电机组控制单元、高速环型冗余光纤以太网、远程上位机操作员站等部分。

二、风力发电机组控制单元(WPCU)

风力发电机组控制单元(WPCU)是每台风机的控制核心,分散布置在机组的塔筒和机舱内。由于风电机组现场运行环境恶劣,对控制系统的可靠性要求非常高,而WPCS风电控制系统是专门针对大型风电场的运行需求而设计,具有极高的环境适应性和抗电磁干扰等特点,其系统结构如下:S风电控制系统的现场控制站包括:塔座主控制器机架、机舱控制站机架、变桨距系统、变流器系统、现场触摸屏站、以太网交换机、现场总线通讯网络、UPS电源、紧急停机后备系统等。

三、远程监控系统(WPCM)

所有风电机组通过光纤以太网连接至主控室的上位机操作员站,实现整个风场的远程监控,上位机监控软件具有如下功能:

① 系统具有友好的控制界面。

② 系统显示各台机组的运行数据,如每台机组的瞬时发电功率、累计发电量、发电小时数、风轮及电机的转速和风速、风向等,将下位机的这些数据调入上位机,在显示器上显示出来,必要时还可以用曲线或图表的形式直观地显示出来。

③ 系统显示各风电机组的运行状态,如开机、停车、调向、手/自动控制以及大/小发电机工作等情况,通过各风电机组的状态了解整个风电场的运行情况。

④ 系统能够及时显示各机组运行过程中发生的故障。

⑤ 系统能够对风电机组实现集中控制。值班员在集中控制室内,只需对标明某种功能的相应键进行操作,就能对下位机进行改变设置状态和对其实施控制。

⑥ 系统管理。监控软件具有运行数据的定时打印和人工即时打印以及故障自动记录的功能,以便随时查看风电场运行状况的历史记录情况。

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联系方式
公司: 厦门阿米控技术有限公司
状态:离线 发送信件
姓名:徐工(女士)
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手机:18020776785
传真:0592-5165561
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地址:福建省厦门市思明区湖滨南路388号国贸大厦32C
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去 厦门阿米控技术有限公司怎么走?上图中的红点是 厦门阿米控技术有限公司在厦门市的具体位置标注,操作左上角地图工具可以放大缩小哦。
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