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首页> 外文期刊>Indian Journal of Science and Technology >The Questions of Circuitry Design when Forming the Switching Functions of the Control System of the Matrix Frequency Converter
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The Questions of Circuitry Design when Forming the Switching Functions of the Control System of the Matrix Frequency Converter

机译:形成矩阵变频器控制系统的开关功能时的电路设计问题

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The switching function generator of the matrix frequency converter control system is described. This device can be used in the control systems of frequency-controlled AC drives and special consumers. The output voltage of the matrix frequency converter is generated by this device on the principle of amplitude modulation of the reference sinusoid by steps that are formed from the twelve-phase input voltage sections. The described device enables to generate the output voltage in the range from extremely low frequencies up to the frequency of 150 Hz. At the same time in the low frequency region up to 15 Hz the total harmonic distortion of output voltage complies with the value specified in GOST 13109-97. The frequency range above 15 Hz requires the use of pulse-width modulation to shift the higher harmonics to the high frequency region. The device design consisting of individual identical blocks allows simplifying the manufacturing process, and applying modular technology in the manufacture and maintenance of the device itself and the entire control system in general.
机译:描述了矩阵变频器控制系统的开关函数发生器。该设备可用于频率控制的交流变频器和特殊用户的控制系统中。矩阵变频器的输出电压是由该设备根据参考正弦波的幅度调制原理生成的,阶跃由十二相输入电压部分形成。所描述的设备能够产生从极低频率到150 Hz频率范围内的输出电压。同时,在高达15 Hz的低频区域中,输出电压的总谐波失真符合GOST 13109-97中指定的值。 15 Hz以上的频率范围需要使用脉宽调制将较高的谐波移至高频区域。由单个相同模块组成的设备设计可简化制造过程,并在设备本身以及整个控制系统的制造和维护中应用模块化技术。

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