IEEE Power & Energy Magazine - March/April 2018 - 53

systems will integrate data from sectionalizing switches, sVrs,
smart meters, and lrts and realize optimal voltage control in
the entire distribution network, as shown in figure 6.
cePcO will adopt the central and automatic management of all sVr reference voltages and voltage dead bands.
new sVrs will also feature telecommunication functions for
remotely monitoring and automatically controlling settings to
keep proper voltage in each voltage surveillance area shown in
figure 6. cePcO will also reduce the life-cycle cost of sVrs
through the remote monitoring and control of various sVr
tap changes, setting values, overloads, and activation times.
the voltage dead band will be flexibly changed depending on

to better maintain the reliability and sustainability in the distribution network, cePcO will adopt two measures: collaboration of voltage control in dMs and smart meter system and
open circuit detection for branch distribution lines by using
smart meter data.
currently, the step voltage regulator (sVr) reference voltage
and its dead band are manually managed. In addition, the on-road
ratio transformer (lrt) in distribution substations and dMss are
independently operated. With mass PV penetration, it becomes
increasingly difficult to keep proper voltage in each distribution
line and reduce the number of sVrs and their activation times.
the collaboration of voltage control in dMss and smart meter

Distribution S/S

Sensor

Section Switch

SVR

Collaboration

LRT

Setting

Manual Switch
(Interconnection)

Pole
Transformer
DMS

Rooftop
PV

Smart Meter
System

Utility-Scale
PV

SM
SM

Collaboration

SM

(a)
Voltage Surveillance Area
Distribution S/S

Voltage Surveillance Area
SVR

LRT

Voltage Cap

Voltage Cap

Proper Voltage

Voltage Imbalance

Reference
Voltage

Voltage Imbalance

Voltage Dead Band
Reference Voltage
Voltage Dead Band

Voltage Imbalance

Voltage Imbalance
Voltage Bottom

Voltage Bottom
(b)

figure 6. The collaboration of voltage control using data from sectionalizing switches, SVRs, smart meters, and LRTs.
march/april 2018

ieee power & energy magazine

53



Table of Contents for the Digital Edition of IEEE Power & Energy Magazine - March/April 2018

Contents
IEEE Power & Energy Magazine - March/April 2018 - Cover1
IEEE Power & Energy Magazine - March/April 2018 - Cover2
IEEE Power & Energy Magazine - March/April 2018 - Contents
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IEEE Power & Energy Magazine - March/April 2018 - Cover3
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