Advances in Distribution System Monitoring
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Distribution system monitoring refers to key technologies for monitoring wide-area power distribution systems, between the substation and customer meters, to facilitate distribution grid planning and operation.
Power distribution systems had a simple design historically. With radial topology, one-way power flow, and predictable demand curves, distribution system planners and operators were only required to evaluate the envelope of design conditions, such as peak loads and fault currents, to ensure reliability and power quality. Thus, there has been little need for costly telemetry beyond the substation, which was remotely monitored through supervisory control and data acquisition (SCADA) at several-second intervals. SCADA is a technology that has been in place for decades to connect sensing and control nodes, mostly in the transmission system, to a control room (Northcote-Green and Wilson, 2006) using dedicated telephone...
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