For adapting to requirement for working stably in the modem extra-high-pressure power network, microprocessor-based distance relays are required higher and higher on not only hardware but software. On the base of generalizing the existing condition of microprocessor- based distance relays at the power transmission line, this subject analyzed the existing condition of the hardware of distance relays, compared 8- bit, 16-bit SCM and 32-bit DSP protection scheme, and generalized there merits and demerits, then gave a scheme of relays based on ARM processor. This subject unifies real-time operating system μC/OS-II and the modulation hardware design, and constitutes one software and hardware number system platform. Besides maximum limit enhanced the efficiency of development and reduced the waste of resource, it may also enhance its performance with regarding the platform and optimizing the platform software and hardware resources. And it also meets the complex application need day by day. This subject attempts to realize the protection parallel processing with the duty way, it will not only enhance software＇s readability and the reliability greatly, but also provide the condition of the duty expansion.
ARM processormicroprocessor-based distance relaytransmission line protectionDEVICEARM2200μ C/OS-II
NETL
NSTL
万方数据
维普
