GE DS200FSAAG1ABA现场电源放大器电路板
键入“C”以检查已安装的固件，然后键入“R”以运行闪存。如果CRC检查不正确，请擦除闪存并重新安装固件。如果遇到大量错误的CRC检查，则您尝试加载的文件可能已损坏。获取新文件并重试。如果尝试使用超级终端失败，请咨询工厂。相量实现PQM固件中Calc_Phasors函数的目的是获取数字采样的周期信号并生成信号的等效相量表示。在传统意义上，相量描述了一个纯正弦信号，这就是我们这里感兴趣的；我们希望在基本电力系统频率下计算给定信号的相量。以下离散傅里叶级数方程计算任意数字采样信号的矩形坐标相量。方程式的理由超出了本文件的范围，但可以在任何关于信号分析的文本中找到某种形式。
Type “C” to check the installed firmware, and then type “R” to run the flash. If the CRC check is bad, erase the flash and re-install the firmware. If numerous bad CRC checks are encountered, it is likely that the file you are attempting to load is corrupted. Obtain a new file and try again. If attempts to use Hyperterminal are unsuccessful, consult the factory. Phasors Implementation The purpose of the function Calc_Phasors within the PQM firmware is to take a digitally sampled periodic signal and generate the equivalent phasor representation of the signal. In the conventional sense, a phasor depicts a purely sinusoidal signal which is what we’re interested in here; we wish to calculate the phasor for a given signal at the fundamental power system frequency. The following Discrete Fourier Series equations calculate the phasor in rectangular co-ordinates for an arbitrary digitally sampled signal. The justification for the equations is beyond the scope of this document but can be found in some form in any text on signal analysis.
