THE FUTURE OF POWER SYSTEM CONTROL
ADVANCED MICROGRID OPTIMIZATION
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Modeling and Engineering
services
Objectives of microgrid optimal modeling and
engineering are:
▶▶ optimal use of the renewable portfolio
▶▶ energy costs and losses reduction
▶▶ economic benefits
▶▶ earnings from demand-response and auxiliary services
Services:
Modeling of the microgrid network and distributed
energy resources
Analysis of onsite generation impact on distribution
grids while the microgrid is operating in an isolated
(grid-independent) mode
Reliability testing of the Microgrid transition into
grid-independent operation mode and return to
parallel operation
Generation portfolio optimization via energy costs
estimation and comparison
Recommendations for energy market participation
and auxiliary services
Determination of the most reliable relay protection
schemes
Demonstration of improved economic dispatch of DER
Advantages
▶▶ Optimization of Energy costs
Automatic generation control with grid/
resources optimization allows to minimize costs
▶▶ Loss reduction and improvement of power
quality and reliability indexes
Provided by coordinated volt/var regulation
▶▶ Implementation of VPP algorithms
Allows to provide virtual power plant services as
market aggregator
▶▶ Islanding
Implementation of net-zero mode and islanding
with load frequency control
▶▶ Forecasting
Allows to predict commitment, renewable
generation and energy consumption values
▶▶ Reduction of operating costs
Controls equipment operating limits and
monitors asset health
▶▶ Scalability and interoperability
AMIGO may be configured to fit the microgrid
size – from several houses to whole districts
and towns
▶▶ Automatic control
Does not require operational personnel and
provides self-diagnostic functions
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AMIGO Families
µgrid — customer grids
▶▶AMIGO Residential: solution for
control of home DER (PV, Wind,
Storage, etc.), loads and optimization
of energy consumption. Selling
cost consistent with the objective
(residential use).
▶▶AMIGO Industrial: system for
monitoring of power supply
systems, DER control and energy
cost optimization for industrial use.
▶▶AMIGO Charging station:
solution configured for control
and optimization of energy costs
of charging stations (for electric
vehicles).
▶▶AMIGO Data centers: system
for monitoring of power supply
systems and energy cost
optimization for data centers.
mgrid — utility grids
▶▶AMIGO Utility: centralized system
providing coordination between
several AMIGO-S, I, R, C, D on the
UTILITY level.
▶▶AMIGO Substations: solution
configured and installed on
substation for local volt/var control,
FLISR implementation etc.
▶▶AMIGO Village: centralized
system for monitoring of power
supply systems and energy cost
optimization for islanded
or interconnected grids of a village
or farm.
▶▶AMIGO Aggregator: centralized
system for coordinated DER
control (realizing virtual power
plant) and Load Management
(demand-response) to enter the
energy market as a single entity.
rgrid — remote grids
▶▶AMIGO M ISL: solution
for monitoring of power supply
systems and energy cost
optimization for island mono town
▶▶AMIGO U ISL: centralized system
realizing utility level control center
on islands (remote location from
centralized power system).
AMIGO Implementation Options
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Asset Management, Health check
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1.3
Generator isolation to achieve balanced load
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1.4
Islanding / synchronization with external grid
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DER economic dispatch
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2.2
Loss Reduction
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2.3
Demand Response
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DER economic dispatch
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LC
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Revenue from ancillary services
Frequency control (on Island mode)
4.2
Virtual power plant functions (VPP)
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Power quality
5.1
Coordinated volt/var regulation
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5.2
Frequency control (on Island mode)
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Revenue from electricity sales
4.1
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Reduce costs
2.1
3.1
AMIGO U ISL
CS
AMIGO A
Fault Location, Isolation, Restoration (FLISR)
1.2
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AMIGO M ISL CS, LC
CS
AMIGO V
Reliability
1.1
2
rgrid
LC
AMIGO S
CS
AMIGO D
CS
LC
AMIGO C
AMIGO U
CS, LC
AMIGO I
mgrid
LC
AMIGO R
Use Cases
µgrid
Centralized server (CS): AMIGO is installed on customary sever hardware. It performs centralized management and
can be equipped with workstations.
Local controller (LC) — AMIGO is installed on the controller. Does not require workplaces.
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Others
6.1
Manual Control
6.2
Schedule Control
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6.3
Energy market integration
6.4
Energy market aggregator integration
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Remote configuration
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THE FUTURE OF POWER SYSTEM CONTROL
ADVANCED MICROGRID OPTIMIZATION
3
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Positioning
AMIGO operates optimally with medium- and large-sized microgrids with the following characteristics:
• More than 2 energy resources that can balance MG load
• Storage systems
• Local controllers, telecontrols, smart meters
Small
Up to 500 kW
Medium
500 to 1500 kW
Office
Large
1500 kW and more
AMIGO
Technopark
Data Center
Shopping malls
Farm
House
Apartment block
Microdistrict
Island, Company Town
Medical center
School
Campus
Electriс Vehicle
Industrial
Military infrastructure
Economic Benefits evaluation
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Functionality
Benefits
Effect
Unit
commitment
Optimal level of equipment efficiency
Stable workload schedule
15 – 25%
Generation
optimization
Utilization of low-cost
energy resources
3%
Demand-response
Energy sots reductions
2 – 5%
System regulation
and ancillary services
Additional income (payments for LFC)
Blackstart assessment
2 – 5%
Volt / var control and
optimization
Load decrease
Energy loss reduction
2 – 4%
AMIGO functional architecture
External services
Weather station
Market Agregators
Web-client
Application bus
AGC
V/VC
Forecasts
Generation and UQ
optimization
State
estimation
Metering
Self-Diagnostics
and Market apps
Secure
Web-server
Control bus
Measurements
and sensor
SMART-SERVER (communication hub)
RTDB
AMIGO
IEC
61850
IEC
870-5-1101/103/104
OPC
MODBUS
Network
model
...
Local MG controllers, Storage, UPS, BMS, DER, Smart Meters
Control modules:
• AGC – Automatic generation control
• V/VC – Automatic voltage and reactive power control modules
Analytical modules:
• Forecasts – data required for electric load planning and green generation
• Generation and UQ optimization – generation adequacy, calculation of optimal setpoints for generation and
reactive power sources
• State estimation – identification of the power system parameters, checking of measurements and states
• Metering and market apps – receiving and processing commands from market aggregators
SMART-Server (communication hub):
• Data collection from equipment (transmitters, controllers, etc.) by multiple protocols
Self-diagnostics modules:
• Asset health troubleshooting monitoring and notification dispatch to the WEB interface
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AMIGO for charging stations
AMIGO may be used wherever renewable energies are generated, stored, distributed and consumed on a decentralized basis. AMIGO monitors, manages and coordinates the microgrids, distributed energy resources and storage
systems as well as local Volt-VAR controllers and demand-response units.
Probably the smallest microgrids worldwide
Even e-mobility charging points – probably the smallest microgrids worldwide – can be managed more efficiently
with the aid of AMIGO: there is already a functioning example. Possible application fields include private households,
public parking areas, large car-parks and shopping centers.
AMIGO monitors, controls and manages such small microgrids automatically, including energy storage, energy purchase prices, charge control and charging station monitoring.
PROBABLY THE SMALLEST MICROGRIDS WORLDWIDE
EV Charging station
Tasks:
▶▶ grid operation limits control
▶▶ charging optimization based on the market price
▶▶ profit from active demand-response
AMIGO provides:
▶▶ market price monitoring and optimal load control
▶▶ demand-response signals receipt from market
aggregator and automatic adjustment of charging load
▶▶ charging station power electronics control
RTSoft GmbH
Gutenbergstr. 2, 85737 Ismaning
Tel.: +49 89 370 058 400
[email protected] / www.rtsoft.de