Extension of a Smart Grid Test Facility with Building Energy Agent Technology Alexander Wendt, [email protected] Mike Pichler, [email protected] Mario Faschang, [email protected] Thomas Leber, [email protected] Tobias Deutsch, [email protected] Background and Motivation Building Energy Agent Infrastructure Integration of BEA in the Infrastructure o Layer 1: Hardware o Transformers STT800 for PV and local MV/LV transformers o Current sinks IS100 as variable loads for EVs and households o Smart Meters at critical measurement points in the grid o Layer 2: Software o Central server for managing data exchange via “datapoints” o Clients as gateways, user interfaces, algorithms, profile generators o Layer 3: Model o 3-phase LV power grid o Topology: (1) two branches, (2) one long branch or (3) closed ring o MV/LV grid transformer o two households with PV, two households without PV o Emulation of 24 h within 2 min by real hardware components o Background: Existing Smart Grid lab infrastructure (two switchable 3- phase branches; emulated secondary substation with OLTC; emulated households and PV generation) is extended by a building automation agent. o Motivation: Develop and test functionality of a “Building Energy Agent” o Problem: o Risky and expensive to test concepts in real grids o Hard to get a realistic test environment with simulator o Solution: Extension of test facility “Intelligent Low Voltage Grid” o Emulate LV power grid (two 3-phase branches with ring option) o Emulate single hardware components like PV and EV o Extension by “Building Energy Agent” (BEA) rack representing a household and BEA functionality to be tested o New Use cases: o Island mode – No external power supply o V2G/G2V – Integration of EVs into grid o Load shifting – Demand Side Management o Load reduction – Reduce grid load on critical external events 1. Activate simulated heating system on BEA through switch 2. Switch state “ON” passed to interface of BEA to datapoint server 3. Datapoint “BEAHeatingSystem” in server set to “ON” 4. Profileclient gets datapoint “BEAHeatingSystem” and receives “ON” 5. Current-profile for a heating system loaded from csv-file 6. Datapoint “BEACurrentLoad” set with value according to profile 7. Profile current value set in a current sink in the BEA rack 8. Value measured by smart meter 9. Smart Meter values provided to the BEA and user o BEA functionalities: o Maximize self-consumption of produced energy inside the building (e.g. from photovoltaic plants) o Generate accurate load and generation forecasts for grid operation and energy procurement optimization o Offer flexibilities (e.g. load shifting) for energy retailers, Virtual Power Plants (VPP) and grid operators o Connected devices and services: o Smart Meter, E-Car charging station, photovoltaic inverter, building automation systems, external weather forecast provider o Information exchanged with infrastructure: o The BEA receives P(U) and Q(U) characteristics in order to reduce consumption or generation in case of voltage band violations o Control signals from the building automation system are connected to the simulation system (see next section) Smart Meter Building Automation E-Car Charging Station Weather Forecast PV Plant Building Energy Agent Tapchanger‐ Algorithm DatapointServer ProfileClient Userinterface‐ Client DeviceClient Read: S.Trafostation.L1.U S.Trafostation.L2.U S.Trafostation.L3.U S.Trafostation.L1.I S.Trafostation.L2.I S.Trafostation.L3.I Write: S.Tap.RangeControlActive S.Tap.RangeControlFactor Subscribe: S.profile.control S.profile.profile S.Tap.RangeControlActive S.Tap.RangeControlFactor Write: S.profile.systemtime S.Trafostation.L1.U S.Trafostation.L2.U S.Trafostation.L3.U S.Trafostation.L1.I S.Trafostation.L2.I S.Trafostation.L3.I Write: S.profile.control S.profile.profile Subscribe: S.profile.systemtime

Extension of a Smart Grid Test Facility with Building

Download PDF Report

Upload
others
View
1
Download
0

Embed Size (px)

Citation preview

Page 1: Extension of a Smart Grid Test Facility with Building

Extension of a Smart Grid Test Facilitywith Building Energy Agent Technology

Alexander Wendt, [email protected] Pichler, [email protected]

Mario Faschang, [email protected] Leber, [email protected]

Tobias Deutsch, [email protected]

Background and Motivation Building Energy Agent

Infrastructure

Integration of BEA in the Infrastructure

o Layer 1: Hardwareo Transformers STT800 for PV and local MV/LV transformerso Current sinks IS100 as variable loads for EVs and householdso Smart Meters at critical measurement points in the grid

o Layer 2: Softwareo Central server for managing data exchange via “datapoints”o Clients as gateways, user interfaces, algorithms, profile generators

o Layer 3: Modelo 3-phase LV power grido Topology: (1) two branches, (2) one long branch or (3) closed ringo MV/LV grid transformero two households with PV, two households without PVo Emulation of 24 h within 2 min by real hardware components

o Background: Existing Smart Grid lab infrastructure (two switchable 3-phase branches; emulated secondary substation with OLTC; emulatedhouseholds and PV generation) is extended by a building automationagent.

o Motivation: Develop and test functionality of a “Building Energy Agent”

o Problem:o Risky and expensive to test concepts in real gridso Hard to get a realistic test environment with simulator

o Solution: Extension of test facility “Intelligent Low Voltage Grid”o Emulate LV power grid (two 3-phase branches with ring option)o Emulate single hardware components like PV and EVo Extension by “Building Energy Agent” (BEA) rack representing a

household and BEA functionality to be tested

o New Use cases:o Island mode – No external power supplyo V2G/G2V – Integration of EVs into grido Load shifting – Demand Side Managemento Load reduction – Reduce grid load on critical external events

1. Activate simulated heating system on BEA through switch2. Switch state “ON” passed to interface of BEA to datapoint server3. Datapoint “BEAHeatingSystem” in server set to “ON”4. Profileclient gets datapoint “BEAHeatingSystem” and receives “ON”5. Current-profile for a heating system loaded from csv-file6. Datapoint “BEACurrentLoad” set with value according to profile7. Profile current value set in a current sink in the BEA rack8. Value measured by smart meter9. Smart Meter values provided to the BEA and user

o BEA functionalities:o Maximize self-consumption of produced energy inside the building

(e.g. from photovoltaic plants)o Generate accurate load and generation forecasts for grid operation

and energy procurement optimizationo Offer flexibilities (e.g. load shifting) for energy retailers, Virtual Power

Plants (VPP) and grid operators

o Connected devices and services:o Smart Meter, E-Car charging station, photovoltaic inverter, building

automation systems, external weather forecast provider

o Information exchanged with infrastructure:o The BEA receives P(U) and Q(U) characteristics in order to reduce

consumption or generation in case of voltage band violationso Control signals from the building automation system are connected

to the simulation system (see next section)

Smart Meter Building Automation E-Car Charging Station

Weather ForecastPV Plant

Building Energy Agent