电力系统综合测控装置的研制

【作者】 庞百泉；

【导师】 姬劳；

【作者基本信息】 西北工业大学 ， 电力电子及电力传动， 2003， 硕士

【摘要】 随着电力工业的发展和用户对供电质量要求的提高，人们对电力系统测控装置的性能提出了新的更高的要求。论文采用自顶向下和模块化的思想设计电力系统综合测控装置。 首先，根据电力系统继电保护的现状和发展前景，论文分析了综合测控装置可能的运行方案，论证了各模块的需求配置，讨论了五大硬件模块和软件的设计方案，此后详细介绍了各模块的硬、软件实现。 硬件部分依次介绍了各模块的具体实现电路，然后根据各模块的控制逻辑讨论了其接口的CPLD实现，着重论述了智能模数转换控制器和IO接口逻辑等的标准VHDL硬件描述，其简化了CPU对外设的控制并扩展了其IO资源，提高了系统电路的可靠性、保密性、移植性。 软件部分先分析了分时OS与抢占式RTOS的调度逻辑，并针对具体应用的特殊情况揉和了两者的一些特点，满足了周期性任务和突发任务实时服务的要求；然后依次讨论了包括引导程序和模拟通道自校准在内的等BSP驱动包的设计和处于最顶层的各类应用程序的没计；并对调试工具的一些特殊设置作了简要说明。 所设计的综合测控装置的实验表明，它具有很高的可靠性和实时性。最后，针对抗干扰与可靠性的分析，并提出了进一步的改进意见。更多还原

【Abstract】 With the development of electric power industry and the increasing request for power supply quality by consumers, the performance of the measurement & control apparatus of power system is faced with a new challenge. In the course of developing, top-down design and modularization are considered.Firstly, according to the present state and development prospect of the relay protection of power system, this paper mainly analyzes the potential use of the comprehensive apparatus and demonstrates the requirements of the function modules. On the basis of them, the module argumentation of hardware and software is listed. The followings are the detail schemes of the project design.Then, after the presentations of the specific circuits principle in sequence, this paper implements the interfaces between CPU and other devices based on CPLD by virtue of their sequences in time. In this part, some control modules described with the standard VHDL are emphasized, such as the IO logic and the intelligent controller of multiplex synchronized data acquisition, and so on. The usage of CPLD simplifies CPU control and expands IO sources, at the same time, improves system performance, for instance, reliability, security, portability.Furthermore comes the software. After the introduction and comparison with time sharing OS and preemptive RTOS, a special real time schedule is adopted to manage the periodic tasks and asynchronous events. The key sets of debuggers are also mentioned along with board support package (BSP) and application programs are discussed, where the BSP includes boot program and self-calibration program of analog channel, etc.Finally, there is an evaluation on the designed apparatus. The experimental result indicates that it is highly Reliable and Real-time. On the anti-interference and reliability point of view, some suggestions are offered, too.更多还原