DER Monitoring and Control and Smart Inverters -...
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Transcript of DER Monitoring and Control and Smart Inverters -...
![Page 1: DER Monitoring and Control and Smart Inverters - Aboutjointutilitiesofny.org/wp-content/uploads/2016/06/SolarCity-Grid... · DER Monitoring and Control and Smart Inverters . ... SolarCity](https://reader035.fdocuments.in/reader035/viewer/2022062402/5ae893327f8b9a6d4f8faa01/html5/thumbnails/1.jpg)
Power forever.
July 2016
DER Monitoring and Control and Smart Inverters
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SolarCity Confidential Slide 2 2
Voltage &
Reactive
Power
System
Flexibility
Peak
Demand
Shaving
Contingency
Support
DER Aggregation Utilizing customers and DERs to meet grid needs and unlock the benefits of a distributed grid
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SolarCity Confidential Slide 3 3
Utility – DER Provider Communications:
Smart Energy Profile 2.0 (SEP 2.0 / IEEE 2030.5)
CA utilities have been required to implement SEP 2.0 for utility-DER
communications.
It would be beneficial for NY utilities to also implement SEP 2.0.
SEP 2.0
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SolarCity Confidential Slide 4 4
Remote Communication
Dynamic Volt/VAR Support
Flexible Power Factor
Enables Dynamic Curtailment
Configurable ramp rates
Voltage‐Watt - Modify real power output autonomously in response to local voltage variations
Anti-islanding protection
Low and high voltage ride through
Low and high frequency ride through
Soft start reconnection
Frequency-Watt - Counteract frequency excursions beyond normal limits by decreasing or
increasing real power
Dynamic Current Support - Counteract voltage excursions beyond normal limits by
providing dynamic current support
Smooth Frequency Deviations
Smart Inverter Capabilities
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SolarCity Confidential Slide 5 5
Inverter Data Application:
Geographic smoothing can mitigate voltage flicker
Percent max output swing in any
minute decreases as the area
covered increases.
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SolarCity Confidential Slide 6 6
User defined inverter Volt/VAR curves for optimal voltage control
‒ Autonomous operation
‒ Remote updating functionality
Dynamic Volt/VAR Support
Source: Draft Input for Voltage Regulation section in the IEEE 1547 Revision. (not published or final document).
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SolarCity Confidential Slide 7 7
Volt-Var Control 30% tighter voltage range
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SolarCity Confidential Slide 8 8
Feeder Voltage Profile
Flexible Power Factor Field Results: Reactive Power Support
275 inverters and 5 MW PV
Thu 12:0
Fixed Power Factor configuration shifts voltage to remain within ANSI Limits
![Page 9: DER Monitoring and Control and Smart Inverters - Aboutjointutilitiesofny.org/wp-content/uploads/2016/06/SolarCity-Grid... · DER Monitoring and Control and Smart Inverters . ... SolarCity](https://reader035.fdocuments.in/reader035/viewer/2022062402/5ae893327f8b9a6d4f8faa01/html5/thumbnails/9.jpg)
SolarCity Confidential Slide 9 9
Dynamic Curtailment 190 inverters and 1.8MW PV
Configurable
Threshold
Aggregation of inverters can be controlled to limit substation backfeed
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SolarCity Confidential Slide 10 10
Conservation Voltage Reduction (CVR) Smart inverters can improve performance and reduce cost of CVR
See solarcity.com/gridx for a paper describing how to quantify CVR benefits.
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SolarCity Confidential Slide 11 11
Using smart inverters to increase hosting capacity
Examples of using smart inverters as a low-cost option to mitigate
interconnection issues and increase hosting capacity:
Colorado – Seasonal fixed power factor allowed an additional 2 MW of PV to
interconnect.
Texas – Fixed power factor used to remove voltage violations.
Hawaii – Fixed power factor increased hosting capacity.
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SolarCity Confidential Slide 12 12
DER Aggregation
for Grid Services
Smart Inverter Dynamic
Reactive Power Support
Smart Inverter and Battery
DERMS Pilot
Utility Collaboration Projects
Inverter Volt/VAR
Optimization & Support
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SolarCity Confidential Slide 13 13
Thank you