摘 要船舶电站对于整个船舶来说是不可缺少的,它就相当于我们人的“心脏”,为整个船舶的运行提供动力,关系着船舶是否能够正常启动和运行。我们此次完成的设计是船舶电站的自动同步并车装置,并车装置在船舶电站中占有不可或缺的位置,可以减少备用发电机组的数量,使电能得到合理使用,避免浪费,增加船舶电站的可靠性。84303
本装置先使用变压器将待并机和电网两侧的高电压转换成低电压,再通过两个桥式整流电路得到待并机和电网电压之间的差值,即电压差。然后再把两个低电压转换成方波信号,最后使用增强型51单片机计算可以得到其频率以及相位差。当两侧的电压相同、频率相同、相位保持一致时(理想状态),单片机就发出并车信号。该装置简单可靠,可以满足船舶作业的环境。
毕业论文关键词:船舶电站;自动同步并车;单片机;
Abstract Ship power station for the entire ship is indispensable, it is equivalent to our people's heart, to provide power for the operation of the whole ship, the relationship between the ship is able to normally start and run。 Our completion of the design is the ship power station automatic synchronization device。 And vehicle device in the ship power station occupies has an indispensable position。 It can reduce the number of auxiliary power unit。 Electricity can be used reasonably and avoid waste, increase the reliability of the ship power station。
The transformer will be used to the transformer and the power grid on both sides of the high voltage into a low voltage, and then through the two bridge rectifier circuit to get the difference between the machine and the power grid voltage, that is, the difference between the voltage。 The two low voltage is converted into square wave signal, and the frequency and phase difference can be obtained by using the enhanced 51 single chip computer。 When the voltage on both sides of the same frequency, the same frequency, the same phase to maintain (the ideal state), the single chip computer on the issue gives signals。 The device is simple and reliable, and can satisfy the environment of ship operation。
Keywords: Ship power station;Automatic synchronization joint operating device;MCU;
目录
第一章 绪论 1
1。1 选题的目的和意义 1
1。3 船舶电站并车的条件 3
1。4 课题研究的主要内容、大致步骤和措施等 3
第二章 原理图和PCB图的设计 5
2。1 用Altium Designer设计并绘制原理图和PCB图 5
2。1。1 原理图的设计 5
2。1。2 PCB图的设计 7
2。2 设计、绘制原理图和PCB图遇到的问题 10
2。3本章小结 11
第三章 硬件设计 11
3。1 硬件电路设计思路 12
3。2 主控芯片选型及复位电路的设计 12
3。3电网和待并机的电压采集电路 15
3。4稳压电源电路 17
3。5整流求电压差值电路 18
3。6波形转换电路 18
3。7调频驱动电路和合闸驱动电路