小微水电机组综合控制装置的研究与实现
发布时间：2018-07-26 17:41
【摘要】：本课题以广西区内丰富的小型水电资源为研究背景,阐述了小微水电对国家能源战略结构的重要意义。实际调研了广西区内已建的小微水电的运营情况以及设备工况,了解了部分在建或规划中小微水电的投资情况,深入分析了目前小微水电的特点和存在的问题,并针对此,设计和开发了种以励磁控制为主,其他功能为辅的小微水电机组综合控制装置。 课题以300kW及以下小微水电小型发电机组为研究对象,针对小微水电机组的运行特点,阐述了小微水电机组综合控制装置设计指标,以及实现各项功能的理论依据。所设计的综合控制装置,在励磁控制功能的基础上,集成了同期控制、保护以及其他功能,实现了采集信号的共享,避免了分立装置重复采集所造成的资源浪费,简化了系统的线路,为小微水电站的自动化改造提供一种方案,具有很高的性价比。课题中,独创的单微机双通道励磁设计是本装置的一大亮点。即在数字励通道磁控制的基础上,附加模拟通道励磁控制,实现了单微机双通道的励磁控制,增强了系统励磁的可靠性。 本课题根据小微水电的实际需求,严格遵守设计规范和要求,对装置软、硬件进行精细化、模块化设计。硬件部分模块主要包括：模拟量插件、I/O插件、模拟通道插件、电源插件、CPU插件、脉冲插件等几部分。该装置以DSP+CPLD作为控制核心,实现AD采样、I/O控制、脉冲控制、并网、保护等功能。在励磁控制中,数字、模拟通道无扰切换的实现也是本课题的个重要内容。 最后,通过小功率实验机组对装置进行试验与调试,对试验波形和数据进行了分析,所得的结论表明,装置的各项性能均满足国家相关标准和要求。
[Abstract]:Taking the rich small hydropower resources in Guangxi as the research background, this paper expounds the significance of small and micro hydropower to the national energy strategic structure. This paper investigates the operation and equipment working conditions of the built small micro hydropower in Guangxi, understands the investment situation of some small hydropower in construction or planning, analyzes the characteristics and existing problems of the small micro hydropower in Guangxi, and aims at this problem. This paper designs and develops a kind of integrated control device of small micro hydropower unit, which is based on excitation control and auxiliary with other functions. According to the operation characteristics of the small and micro hydropower units, the design index of the integrated control device for the small and micro hydropower units and the theoretical basis for the realization of the various functions are expounded in this paper, taking the 300kW and the following small and micro hydropower generating units as the research objects. On the basis of excitation control function, the designed integrated control device integrates synchronous control, protection and other functions, realizes the sharing of acquisition signals, and avoids the waste of resources caused by repeated acquisition of discrete devices. It simplifies the system circuit and provides a scheme for automatic transformation of small hydropower stations with high performance and price ratio. In the subject, the original design of single microcomputer and double channel excitation is a bright spot of this device. On the basis of digital excitation channel magnetic control and additional analog channel excitation control, the excitation control of single microcomputer and double channel is realized, and the reliability of excitation system is enhanced. According to the actual demand of small and micro hydropower, this paper strictly obeys the design specification and requirements, and designs the hardware and software of the device in detail and modularized. The hardware module mainly includes: analog I / O plug-in, analog channel plug-in, power plug-in CPU plug-in, pulse plug-in and so on. Using DSP CPLD as the control core, the device realizes the functions of AD sampling I / O control, pulse control, grid-connected, protection and so on. In excitation control, the realization of digital and analog channel undisturbed switching is also an important part of this subject. Finally, the equipment is tested and debugged by a small power experimental unit, and the waveform and data of the test are analyzed. The results show that the performance of the device meets the relevant national standards and requirements.
【学位授予单位】：广西大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TV734.4
本文编号：2146780
[Abstract]:Taking the rich small hydropower resources in Guangxi as the research background, this paper expounds the significance of small and micro hydropower to the national energy strategic structure. This paper investigates the operation and equipment working conditions of the built small micro hydropower in Guangxi, understands the investment situation of some small hydropower in construction or planning, analyzes the characteristics and existing problems of the small micro hydropower in Guangxi, and aims at this problem. This paper designs and develops a kind of integrated control device of small micro hydropower unit, which is based on excitation control and auxiliary with other functions. According to the operation characteristics of the small and micro hydropower units, the design index of the integrated control device for the small and micro hydropower units and the theoretical basis for the realization of the various functions are expounded in this paper, taking the 300kW and the following small and micro hydropower generating units as the research objects. On the basis of excitation control function, the designed integrated control device integrates synchronous control, protection and other functions, realizes the sharing of acquisition signals, and avoids the waste of resources caused by repeated acquisition of discrete devices. It simplifies the system circuit and provides a scheme for automatic transformation of small hydropower stations with high performance and price ratio. In the subject, the original design of single microcomputer and double channel excitation is a bright spot of this device. On the basis of digital excitation channel magnetic control and additional analog channel excitation control, the excitation control of single microcomputer and double channel is realized, and the reliability of excitation system is enhanced. According to the actual demand of small and micro hydropower, this paper strictly obeys the design specification and requirements, and designs the hardware and software of the device in detail and modularized. The hardware module mainly includes: analog I / O plug-in, analog channel plug-in, power plug-in CPU plug-in, pulse plug-in and so on. Using DSP CPLD as the control core, the device realizes the functions of AD sampling I / O control, pulse control, grid-connected, protection and so on. In excitation control, the realization of digital and analog channel undisturbed switching is also an important part of this subject. Finally, the equipment is tested and debugged by a small power experimental unit, and the waveform and data of the test are analyzed. The results show that the performance of the device meets the relevant national standards and requirements.
【学位授予单位】：广西大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TV734.4
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