Residential Battery Storage Systems. Design support experience using Hardware in the Loop Opal-RT Andres Salazar Sonnen Inc, R&D Atlanta GA

Transcription

1 Residential Battery Storage Systems. Design support experience using Hardware in the Loop Opal-RT Andres Salazar Sonnen Inc, R&D Atlanta GA

2 Company Overview

3 sonnen European Market Leader for intelligent Li-Ion-Storage systems» Manufacturer of intelligent Li-Ion-Storage Systems for both residential and commercial segment» HQ in Germany, Daughter Company in USA (HQ in Los Angeles, CA, R&D in Atlanta, GA)» Pioneer with market experience since 2010 and market presence in Europe, USA and Australia» systems sold» > 100% annual growth» 150 employees in EU and USA sonnen GmbH 3

4 Product Overview

5 Cutting Edge Design Residential Solution Becomes Part of Home eco - white eco white incl. extension cabinet 5

6 sonnenbatterie eco» Fully integrated, AC-coupled system and easy to install ( Plug & Play )» Optimized self-consumption Weather forecast, self-learning algorithm» Comfortable and easy control via App, Internet or Touch- Display» Broad portfolio for private households and small businesses» High software intelligence Intelligent Peak Shaving Demand Side Management VPP Aggregation through remote control Remote control via mobile app, tablet or laptop sonnen GmbH 6

7 Fully integrated Storage System» Complete operable AC-system» Perfectly selected and synchronized components including Energy Management» Intrinsically safe( Non thermal runaway) and reliable Lithium-Iron-Phosphate Battery (SONY) with unique Warranty of 10,000 cycles» Easy and cheap to install Cabinet Power Electronic / Inverter Battery Touch Display and Energy Manager High Level Controller sonnenbatterie eco sonnen GmbH 7

8 Residential Product Portfolio Europe/Australia» Basic cabinet with 2 kwh (eco 8.0) - can be wall-mounted» Extension cabinet for modular capacity up to 16 kwh (in 2 kwh steps) - Adding battery capacity at any time» 10, % DOD» 10 year warranty sonnen GmbH 8

9 Residential Product Portfolio USA» Basic cabinet with 4 kwh (eco 4.0)» Extension cabinet for modular capacity up to 16 kwh - Adding battery capacity at any time» Back-Up + Off-Grid functionality included» 10, % DOD» 10 year Warranty sonnen GmbH 9

10 sonnen is a multipile solution provider Ability to adress several use cases Energy Management Hub for every Home» Solar day & night» Integration of Power and Heat» Demand-Side-Management and Smart Home» Tariff optimization (Time-of-Use Shifting)» Back-Up-Power» Data Monitoring and Analytics Demand Charge Reduction» Intelligent Peak Shaving» Reduce commercial customers power bill by 20-50% Grid Services and Energy Market Integration» Remote Control and VPP aggregation» Energy Trading / Arbitrage sonnen GmbH 10

11 basic overview sonnen GmbH 11

12 basic overview II sonnen GmbH 12

13 challenges hardware - software - Inverter Dynamic operation In Nano Grid operation - Optimal Charge-Discharge - Health monitoring of the batteries - Software Releases Test sonnen GmbH 13

14 Nano-grid Operation Power Electronics Model using ehs Example: AC Start-Up simulator -Sources Ts: 295 ns -Scenarios Real Time Results sonnen 14

15 Optimal Charge-Discharge and Software testing PV Inverter Modbus Protocol M M ATS Inverter Load Panel LiFePO4 Batteries Internal sonnen computer(control) sonnen GmbH 15

16 Python scripts for automated testing Battery Model PV Model Low Frequency Inverter Model (on ehs) Modbus Communication Modbus RTU Modbus TCP A T S Ts = 225ns sonnen 16

17 Battery Health Monitoring Battery Aging Diagnostic Through Internal Impedance Measurement Battery Model (on ehs) PV Model High Frequency Inverter Model (on ehs) sonnen 17

18 Summary - Opal systems in specific OP4510 is allowing sonnen R&D group to develop : - Analysis of the stability in Bi-directional inverter control topologies while connected to nano-grids. - Testing the implementation of optimal battery charging and discharging under multiple scenarios involving real weather and demand data. - Validation and testing of new software releases in an accelerated and automated way without the need of external hardware. - Implementation of novel algorithms for measuring the battery impedance while using this information for aging diagnostic of the batteries sonnen 18

19 references Ginart, A. Salazar and R. Liou, "Transformerless Bidirectional Inverter for Residential Battery Storage Systems," 2016 IEEE Green Technologies Conference (GreenTech), Kansas City, MO, 2016, pp Ginart, A. Salazar, D. Patel, J. Roach, C. Restrepo and H. Schweizer, "Air Conditioning (A/C) Startup Simulator for Evaluating Nanogrid Operation," 2016 IEEE Green Technologies Conference (GreenTech), Kansas City, MO, 2016, pp Ginart, R. Riley, B. Hardman and M. Ernst, "Closed-Forms Solution for Simplified PV Modeling and Voltage Evaluation Including Irradiation and Temperature Dependence," 2013 IEEE Green Technologies Conference (GreenTech), Denver, CO, 2013, pp doi: /GreenTech D. I. Stroe, M. Swierczynski, A. I. Stan, V. Knap, R. Teodorescu and S. J. Andreasen, "Diagnosis of lithium-ion batteries state-of-health based on electrochemical impedance spectroscopy technique," 2014 IEEE Energy Conversion Congress and Exposition (ECCE), Pittsburgh, PA, 2014, pp sonnen 19

20 Thank you sonnen 20