【作者】 黄俊；

【导师】 郑宏；

【作者基本信息】 江苏大学 ， 电气工程， 2016， 硕士

【摘要】 随着国内经济的高速增长,我国与国外的航运贸易大规模扩大,到访我国港口的船舶也越来越多。但是长期以来,靠港船舶都是采用船舶自带的柴油发电机组供电,造成了日益严重的环境问题。静止式船舶岸电电源凭借其优势逐渐受到人们的广泛关注,然而传统岸电电源还存在电源制式单一、保护措施不完备、带不平衡负载能力弱以及岸电系统的线制不匹配等问题。本文结合静止式船舶岸电电源的实际工程项目做了如下工作:依据静止式船舶岸电电源的研究现状及发展趋势,介绍静止式船舶岸电电源现有的几种拓扑结构和控制方法,阐述了课题的来源、研究意义及作者在课题中所承担的科研任务。通过对项目的技术指标、开发成本及开发周期的综合考虑,确定静止式船舶岸电电源的基本结构。其中,逆变电路并未使用传统的三相桥拓扑,而是采用了由三个单相桥构成的组合式逆变拓扑,提高了系统带不平衡负载的能力,并能输出380V/50Hz和440V/60Hz两种制式的电源。对于岸电系统的线制不匹配问题,给出了配出中性线的IT系统这一解决方案。其次,从静止式船舶岸电电源的工作原理出发,详尽推导了功率电路各部分的电气参数,并据此选择合适的功率器件。控制电路则基于研旭公司生产的DSP28335核心板进行外围电路设计。对于关键的驱动部分,控制板只负责输出±5V的驱动脉冲,脉冲调理由CONCEPT驱动板完成,这样不仅提高了驱动的可靠性,又缩减了开发周期。此外,还专门设计了功率模块的过压、过流及过热保护,保证了系统的安全稳定运行。在建立了静止式船舶岸电电源的小信号模型后,给出了电压电流双闭环控制策略,控制器基于传统的PI控制器做了些改进,有效提高了控制速度与精度。对于系统的软件实现,依据各部分的功能划分为若干功能子模块,进行模块化设计,给出各自的程序流程图。最后,对所设计的静止式船舶岸电电源设备进行了通电实验。实验结果表明设备运行正常,输入输出波形及THD等技术参数均符合设计要求,功率模块也得到了很好的保护。更多还原

【Abstract】 With the rapid growth of domestic economy, the shipping trade between China and foreign countries became more and more prosperous, so a lot of ships came to visit our country. But for a long time, the ships are almost powered by diesel generator set, caused serious environmental problems. The static ship shore power supply has been widely concerned by people because of its advantages. However, the traditional shore power supply has many problems, such as the power supply system is single, protection measures are not complete, the ability of tolerate unbalance load is weak, line mismatch of shore power system and so on. Combined with the actual engineering project of static ship shore power supply, the main research contents of the thesis are as follows:According to the current research and development trends of static ship shore power supply, introduced several existing topologies and control methods of static ship shore power supply, elaborated the source and research meanings of the topic and the tasks undertaken by myself in the project.By considering the technical index, development cost, development cycle of the project, determining the basic structure of the static ship shore power supply. Among them, the inverter circuit didn’t use traditional three-phase bridge topology, instead of combined inverter topology composed by three single-phase bridges, improved the ability of tolerate unbalance load. And it can output two specifications of the power supply:380V/50 Hz and 440V/60 Hz. For the line mismatch of shore power system, the solution of IT system with neutral line was given.Secondly, based on the working principle of the static ship shore power supply, deduced the electrical parameters of each part detailedly, and then select appropriate device. Control circuit was based on the YANXU DSP28335 core board to design peripheral circuit. For the key drivers, the control board was only responsible for output ±5V drive pulse, pulse conditioning was completed by CONCEPT driver board. Thus, not only improved the reliability of the drive, but also reduced the development cycle. In addition, specially designed the over-voltage, over-current and over-heat protection of the power module, ensured the safe and stable operation of the system.After the small signal model of the static ship shore power supply was established, presented the dual-closed loop control strategy of voltage and current. The controller was optimized based on traditional PI controller, improved the control speed and accuracy effectively. For the software realization of the system, divided it into several functional modules according to the function of each part, then conducted modular design, moreover, gave the program flow chart of them.Finally, the experiment of the static ship shore power supply was carried out. The experiment results showed that the equipment was operating normally, the input and output waveforms and THD can meet the design requirements, the power modules were also well protected.更多还原