低压电力载波通信的多态脉冲相位调制方法研究  

Research on Multi-state Pulse Phase Modulation Method for Low-voltage Power Carrier Communication

作　　者：王辉 李永在[2] 罗军 荆臻 

机构地区：[1]国网山东省电力公司经济技术研究院,济南250012 [2]山东大学,济南250100

出　　处：《科技通报》2018年第11期129-132,共4页Bulletin of Science and Technology

摘　　要：对低压电力载波通信进行相位调制时,能有效提升数据传输速率,提高了载波通信网络的稳定性。利用当前方法对低压电力载波通信进行相位调制时,由于数据较多,导致数据传输的速率较低的问题。为此,提出基于随机多态脉冲相位调制方法。构建电力载波通信调制模型,并对该模型进行详细阐述,对载波通信信号进行定义,确定载波脉冲相位。利用基于随机多态脉冲相位调制方法对通信中确定载波脉冲相位进行调制,提出内调制与外调制两种调制方法对载波通信进行调制,并说明外调制更适用于低压电力载波通信网络,采用基于脉冲谐振检测方法对多态脉冲相位外调制进行检测,由正弦余弦检测结果完成对低压电力载波通信的多态脉冲相位调制方法研究。实验结果表明,所提方法能有效提升数据传输的速率,提高了载波通信网络稳定性。When phase-modulating the low-voltage power carrier communication, the data transmission rate can be effectively improved, and the stability of the carrier communication network is improved. When the current method is used to phase-modulate the low-voltage power carrier communication, there is a problem that the data transmission rate is low due to a large amount of data. To this end, a method based on random multi-state pulse phase modulation is proposed. A power carrier communication modulation model is constructed and the model is elaborated. The carrier communication signal is defined to determine the carrier pulse phase. Using the random multi-state pulse phase modulation method to modulate the phase of the carrier wave determined in the communication, the two modulation methods of the inner modulation and the outer modulation are proposed to modulate the carrier communication, and it is explained that the outer modulation is more suitable for the low voltage power carrier communication network. Pulsed resonance detection method For multi-state pulse phase modulation detection, the multi-state pulse phase modulation method for low-voltage power carrier communication is completed by the sine cosine detection result. Experimental results show that the proposed method can effectively improve the data transmission rate and improve the stability of the carrier communication network.

关 键 词：低压 电力载波通信 多态脉冲 相位调制 

分 类 号：TN913.6[电子电信—通信与信息系统]