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随着大功率可控硅设备的广泛应用,对电力系统的谐波干扰也日益严重,我国已经发生多次谐波危害的实例。目前,二十多个工业发达国家已经制订了谐波标准,我国水利电力部也在1984年制订了谐波标准SD126—84。因此研制一种能自动测试并记录电力系统谐波的仪器,十分必要。我组利用单板微处理机作主机,采用改进了的快速傅里叶变换(FFT)算法,研制成BX1型谐波测试分析仪,并于1984年11月通过鉴定。简介如下:
With the widespread application of high-power thyristor equipment, the harmonic interference of the power system is also increasingly serious, examples of multiple harmonic hazards have occurred in our country. At present, more than twenty industrialized countries have formulated harmonic standards, and China’s Ministry of Water Resources and Electric Power also formulated the harmonic standard SD126-84 in 1984. Therefore, it is necessary to develop an instrument that can automatically test and record the power system harmonics. My group used veneer microprocessors as the host, using improved Fast Fourier Transform (FFT) algorithm, developed into BX1 harmonic test analyzer, and in November 1984 passed the appraisal. Brief introduction is as follows: