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介绍了一种智能型电网谐波监视、分析、保护一体化装置 ,详细描述了该装置的硬件结构和软件模块 ,并提出了在硬件设计和软件开发中所运用的关键技术和技巧 ,如 FFT计算方法及技巧、专家预测控制方法实现故障录波、三维图投影技术等 ,最后介绍了综合运用各种技术后系统所实现的主要功能。该装置已在某变电站挂网试运行 ,运行结果表明其监视、分析、自动记录电网运行谐波参数准确、可靠、精度高 ,为确保电力系统安全运行起到了重要作用。
An intelligent integrated monitoring, analyzing and protecting device for power grid harmonics is introduced. The hardware structure and software modules of the device are described in detail. The key technologies and techniques used in hardware design and software development are put forward, such as FFT Calculation methods and techniques, expert predictive control methods to achieve fault recording, three-dimensional map projection technology, and finally introduced the use of various technologies after the system to achieve the main functions. The device has been put into trial operation in a substation. The results of the operation show that the monitoring, analysis and automatic recording of the harmonic parameters of the grid operation are accurate, reliable and high precision, playing an important role in ensuring the safe operation of the power system.