新风光通过对逆变器多电平电路拓扑结构技术、电压型逆变器的电流源控制技术、单元并联技术、并网技术等关键技术进行攻关,实现了突破。在国内首创并成功运行在轨道交通行业,填补了国内空白。通过该项目关键技术开发与应用,满足了城市轨道交通行业低碳绿色环保节能的需求,推动国产轨道交通装备的提质增效。
3 新风光FDBL-JC-650/1500V型再生制动能量吸收逆变装置介绍
该逆变装置具有动态响应快,并网电流谐波小,回馈能量效率高,可靠性高。产品经铁道部质量监督检验中心检验,各项技术指标均达到设计要求。该设备被列入科技部2014年度国家火炬计划项目,山东省重点领域首台套装备名单。
3.1新风光FDBL-JC-650/1500V型再生制动能量吸收逆变装置主要技术参数
新风光FDBL-JC-650/1500V型再生制动能量吸收逆变装置主要技术参数如下:
(1)功率:峰值功率650kW,持续时间20s,周期120s
(2)工作制:间歇工作制
(3)启动电压值:1530V~1980V连续平滑可调
(4)输出电压:AC1000V 三相三线制
(5)频率:跟踪交流侧电网频率
(6)额定工况下输出功率因数:>0.98
(7)额定工况下整套设备效率:>97%
(8)额定工况下电流谐波含量:≤3%
(9)额定工况下电压谐波含量:≤3%
(10)装置响应时间:≤200ms
3.2主要工作原理
逆变器部分采用多单元并联方式,stacking, AC servo controller and AC servo motor control gantry lifting, accurate and stable, so as to ensure the stacking effect;
5. Changing orders and stacks without shutdown can be networked with the production management system to improve production efficiency.
1. Stable transportation and accurate order replacement.
2. The stacking is smooth and the stacking is changed smoothly.
3. Simple operation and convenient maintenance.
Remarks: due to different customer requirements, this scheme only takes gantry stacker as an example
The full set of CANopen bus control of u system solves the disadvantages of many wiring caused by pulse control, inaccurate positioning accuracy caused by pulse loss and poor anti-interference ability. At the same time, it also has high cost performance;
U the system is controlled by F1 series bus PLC of Buke electric, with a high degree of automation. The software adopts CoDeSys software of German 3S company, the mainstream software in Europe. Its CPU frequency is as high as 800m, and the program execution accuracy is 1ms. It can still maintain the stability of the system on the 130m production line;
U the system is equipped with two can bus interfaces, and the frequency converter is controlled separately in one way