IEEE Electrification Magazine - June 2018 - 88

In the face of
these challenges,
potential solutions
are emerging,
including the new
distribution system
operator construct
and transactive
energy systems.

(Giss), ciss, and so on, are not shown
in the figure.
the registration and qualification
function allows for the registration of
prosumer der assets, e.g., asset type,
characteristics, location, intended use
(participation in dsO or bulk power
market programs, bilateral exchanges,
and more), as well as pointers to Giss,
ciss, and so on. this may be done
through a customer portal or the utility's customer service department.
the master data management
maintains information on prosumers, assets, programs, tariffs, contracts, and other base data, while the
hosting capacity and interconnection request management provides a variety of information to help prosumers decide on investments in ders,
microgrids, and associated systems. these include hosting capacity, locational net benefit analysis results, longterm distribution locational marginal prices (dlMPs),
der and microgrid supplier information, and so forth.
it also allows for the interested prosumers to submit
their interconnection requests online and to interact
with the dsO throughout various stages of interconnection studies, approval, revision requirements, and,
possibly, denial. interfaces include operator, market and
prosumer interfaces, a representative set of which are
shown in Figure 3.

the core functions of the tdMs are
t-derMs and iot-scAdA. the former
is used by the dsO for optimal scheduling, dispatch, and, where relevant,
retail market-clearing price determination. the latter is intended for
real-time data collection and control
operations. the t-derMs function
includes several application modules
such as forecasting (load, renewables,
dr, and more), VPP management
(including computation of aggregate
der asset parameters), economic optimization, distribution constraint management (including real and reactive
power/voltage constraints, and phase
unbalance limits management),
scheduling, and dispatch. the iot-scAdA function performs real-time telemetry and control. the performance
monitoring and settlements function supports the determination of charges and credits for the use of the distribution grid and dsO services. the two main functional
components, t-derMs and iot-scAdA, are described in
the "iot-scAdA implementation" section, with a view
toward their practical implementation.

IoT-SCADA Implementation
the iot-scAdA enables the observability and controllability
of a large number of grid-edge devices and systems. the
reach of the existing utility scAdA and dMs does not

Bulk
Power Markets

TDMS

Aggregators
DER Provider
Prosumers

Forecasting

Participant Interfaces
Transactive Operations

Energy
Service Providers

Bulk Power Market
Interfaces

T-DERMS

Master
Data Management

VPP Management

Microgrids

Economic Optimization

Utility Operations
Interfaces

Distribution
Constraint Management

Registration and
Qualification

Scheduling and Dispatch

Hosting Capacity and
Interconnection Request
Management

Data Acquisition and Control
(IoT-SCADA)

DR
Assets

DER
Assets

µg
Assets

Grid
Assets

Figure 3. The main functional modules comprising a possible TDMS realization.

88

I EEE E l e c t r i f i c a t i on M a gaz ine / j un e 2018

Performance Monitoring
and Settlements

Metering

Distribution Operations

Customer Services

Distribution Planning



Table of Contents for the Digital Edition of IEEE Electrification Magazine - June 2018

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https://www.nxtbook.com/nxtbooks/pes/electrification_june2022
https://www.nxtbook.com/nxtbooks/pes/electrification_march2022
https://www.nxtbook.com/nxtbooks/pes/electrification_december2021
https://www.nxtbook.com/nxtbooks/pes/electrification_september2021
https://www.nxtbook.com/nxtbooks/pes/electrification_june2021
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https://www.nxtbook.com/nxtbooks/pes/electrification_june2018
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https://www.nxtbook.com/nxtbooks/pes/electrification_september2017
https://www.nxtbook.com/nxtbooks/pes/electrification_march2018
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