【摘要】 跨变压器台区电力通信信号的频带位于 2 0 0～ 6 0 0Hz之间 ,该信号可自动跨过配电变压器通过电力线实现数据交换。这种配电网通信方式采用过零调制发送及数字差分接收技术 ,具有信号调制功率小、抗干扰能力强、传输距离远的特点。介绍了跨变压器台区电力通信信号的定义、调制、解调方法及抗干扰措施更多还原

【Abstract】 It can automatically stride over distribute transformers to transmit data for the band of signal is between 200～600?Hz.Because this means of communication on distribute line adopts the technique of zero crossing modulation and digital differential demodulation,it needs low power to modulate the signal,and the signal can be sent over long distance without disturbance.In this paper,the definition of signal,the method of modulation and demodulation,the means of anti disturbance for power frequency communication are introduced.更多还原