DIRECT CURRENT POWER LINE COMMUNICATION CONTROL DEVICE USING H-BRIDGE CIRCUIT

摘要

Polarities of voltages on a plurality of electric wires are reversed with an H-bridge circuit applied in accordance with control information or data to be transmitted, information or data transmitted as change of polarities is found on the reception side, and the transmitted power is restored to direct current power through a bridge diode circuit and is used as power supplied to a load. Each load has a unique ID input and storage means, and the present invention is a communication method in which the unique ID is designated to the transmitted information or IDs are designated to groups to control a load. In addition, it is a method for spreading a PWM operation time to minimize noise generated in accordance with PWM driving on the reception side, In a direct current transmission and reception environment, data or a command signal for power demand response is mapped with the polarity of voltage and is transmitted to each customer, and it may be applied to the power demand response technique.

主权项

1. An apparatus for transmitting a control command or data and transmitting direct current power through a power line,
wherein a transmission side and a reception side are connected through two or more electric wires; one or more loads are connected on the reception side of power; a direct current power source is connected on the transmission side of power; an H-bridge driving circuit including a transistor, a MOSFET, or an IGBT is connected to an output terminal of the direct current power source; a MICOM or an external signal controls the output of the H-bridge driving circuit the H-bridge driving circuit outputs a high/low conversion pattern of voltage of output power mapped in accordance with digital information “0” and “1” of a control command or data to be transmitted; the reception side includes a rectifier circuit receiving H-bridge circuit output direct current power with a voltage level changed in accordance with time; the output of the rectifier circuit is used as a power source of a load and a reception side circuit; and the voltage high/low change pattern is analyzed at the front end of the reception side rectifier circuit, to be decoded to the transmitted control command or data information.