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Automating Component-Level Stress Measurements for Inverter Reliability Estimation

Journal Article · · Energies
DOI:https://doi.org/10.3390/en15134828· OSTI ID:1874746

In the near future, grid operators are expected to regularly use advanced distributed energy resource (DER) functions, defined in IEEE 1547-2018, to perform a range of grid-support operations. Many of these functions adjust the active and reactive power of the device through commanded or autonomous operating modes which induce new stresses on the power electronics components. In this work, an experimental and theoretical framework is introduced which couples laboratory-measured component stress with advanced inverter functionality and derives a reduction in useful lifetime based on an applicable reliability model. Multiple DER devices were instrumented to calculate the additional component stress under multiple reactive power setpoints to estimate associated DER lifetime reductions. A clear increase in switch loss was demonstrated as a function of irradiance level and power factor. This is replicated in the system-level efficiency measurements, although magnitudes were different—suggesting other loss mechanisms exist. Using an approximate Arrhenius thermal model for the switches, the experimental data indicate a lifetime reduction of 1.5% when operating the inverter at 0.85 PF—compared to unity PF—assuming the DER failure mechanism thermally driven within the H-bridge. If other failure mechanisms are discovered for a set of power electronics devices, this testing and calculation framework can easily be tailored to those failure mechanisms.

Sponsoring Organization:
USDOE
Grant/Contract Number:
EE0000861
OSTI ID:
1874746
Journal Information:
Energies, Journal Name: Energies Journal Issue: 13 Vol. 15; ISSN ENERGA; ISSN 1996-1073
Publisher:
MDPI AGCopyright Statement
Country of Publication:
Switzerland
Language:
English

References (16)

Activation energy of drain-current degradation in GaN HEMTs under high-power DC stress journal December 2014
PV inverter with decoupled active and reactive power control to mitigate grid faults journal December 2020
The National Solar Radiation Data Base (NSRDB) journal June 2018
Stability and control of power systems with high penetrations of inverter-based resources: An accessible review of current knowledge and open questions journal November 2020
Power control flexibilities for grid‐connected multi‐functional photovoltaic inverters journal April 2016
Thermal Performance and Reliability Analysis of Single-Phase PV Inverters With Reactive Power Injection Outside Feed-In Operating Hours journal December 2015
Parametric PV Grid-Support Function Characterization for Simulation Environments conference June 2017
International Development of a Distributed Energy Resource Test Platform for Electrical and Interoperability Certification
  • Johnson, Jay; Apablaza-Arancibia, Estefan; Ninad, Nayeem
  • 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC) (A Joint Conference of 45th IEEE PVSC, 28th PVSEC & 34th EU PVSEC) https://doi.org/10.1109/PVSC.2018.8547588
conference June 2018
PV Inverter Grid Support Function Assessment using Open-Source IEEE P1547.1 Test Package conference June 2020
Time-Dependent Dielectric Breakdown of 4H-SiC/$ \hbox{SiO}_{2}$ MOS Capacitors journal December 2008
Reactive Power Influence on the Thermal Cycling of Multi-MW Wind Power Inverter journal March 2013
New Physical Insights on Power MOSFET Switching Losses journal February 2009
Reliability and failure physics of GaN HEMT, MIS-HEMT and p-gate HEMTs for power switching applications: Parasitic effects and degradation due to deep level effects and time-dependent breakdown phenomena conference November 2015
Methods for Durability Testing and Lifetime Estimation of Thermal Interface Materials in Batteries journal March 2019
An H5 Transformerless Inverter for Grid Connected PV Systems with Improved Utilization Factor and a Simple Maximum Power Point Algorithm journal October 2018
A Comparison of DER Voltage Regulation Technologies Using Real-Time Simulations journal July 2020

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