초록 ▼

A method and apparatus which permits a power utility to have direct control of customers loads (CD) with a view toward facilitating enablement of a load management philosophy which includes peak shaving and load deferral. A master control station (MCS), which comprises a programmable microprocessor-

A method and apparatus which permits a power utility to have direct control of customers loads (CD) with a view toward facilitating enablement of a load management philosophy which includes peak shaving and load deferral. A master control station (MCS), which comprises a programmable microprocessor-based central controller, is in two-way communication with a plurality of substation injection units (SIU), one of each of which is positioned at a separate substation of the power utility. Each substation injection unit (SIU), under the control of its own microprocessor, responds to master control signals from the master control station (MCS) to inject a pulse code signal onto the power lines of the utility. The system includes a plurality of remote receiver units (RRU) which are positioned at and connected to control the on and off times of customer loads (CD). Each remote receiver unit (RRU) is preset to respond to particular pulse code signals from the substation injection units (SIU) to carry out the desired command functions, which can be implemented either automatically or manually on a fixed or dynamic-cycle basis as the need arises. The system utilizes a command signal and pulse code signal verification technique to insure system integrity and reliability.

대표청구항 ▼

In a system for controlling power distribution from a plurality of utility substations to a plurality of loads wherein a master control station under the control of an operator is in two-way communication with a plurality of microprocessor controlled substation injection units located respectively a

In a system for controlling power distribution from a plurality of utility substations to a plurality of loads wherein a master control station under the control of an operator is in two-way communication with a plurality of microprocessor controlled substation injection units located respectively at said plurality of substations, a method of injecting a pulse code signal representing the desired control command onto the utility\s power lines for transmission to receivers at said loads, comprising the steps of: (a) transmitting a first binary injection message representing said desired control command from said master control station to each of said plurality of substation injection units in turn; (b) transmitting a second binary injection message representing said desired control command received in step (a) from each of said substation injection units in turn to said master control station; (c) verifying at said master control station that said second binary message is the same as said first binary message; (d) transmitting a binary commence keying command signal from said master control station to all of said substation injection units simultaneously; (e) generating a pulse code signal representing said first binary injection message at each of said substation injection units verified by step (c); and (f) injecting said pulse code signal generated in step (e) onto the utility\s power lines for transmission to a plurality of coded receiver units remotely located at said loads to effect said desired control command.