A Robust Testing Method for DC and AC Capacitors With Minimum Required Power Supply

Yao, Bo; Wang, Qian; Wang, Haoran; Hasegawa, Kazunori; Wang, Huai

doi:10.1109/tpel.2021.3130085

Cited by 10 publications

(6 citation statements)

References 9 publications

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“…As discussed in [8], there are two emerging demands for capacitor testing in power electronics applications. The first is parameter characterizations under realistic operating points beyond what is provided in supplier datasheets.…”

Section: Kv/ka Capacitor Testing Systemmentioning

confidence: 99%

“…Nevertheless, extending their testing specifications is challenging due to the required power supply voltage and current ratings and the incapability of dealing with capacitor mismatch among different samples. Therefore, a new testing circuit is proposed and implemented with the details discussed in [8].…”

Section: Kv/ka Capacitor Testing Systemmentioning

confidence: 99%

“…Fig. 3 The developed DC and AC capacitor testing system with up to 10 kV (DC), 1.8 kV (AC), and 1.2 kA (AC) [8].…”

Section: Kv/ka Capacitor Testing Systemmentioning

confidence: 99%

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Application-Oriented Reliability Testing of Power Electronic Components and Converters

Wang

Iannuzzo

Bahman

et al. 2022

IEEE Power Electron. Mag.

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Power electronics have been and will continue to be an enabling technology for energy production, storage, transmission, distribution, and consumption. Power electronic converters are usually the critical links in electrical energy systems, affecting system security, safety, energy efficiency, and cost-of-ownership. As a result, the reliability requirements for power electronic components and converter systems generally become more stringent, for example, in e-mobility, renewable energy generation, and power system applications. Testing is one of the vital reliability engineering tools to investigate failure mechanisms, identify weakest points, and demonstrate robustness margins. It contributes to reliability growth along the product development process and the likelihood of failure reduction in field operation. The required resources (i.e., testing time, sample size, testing facility) and the relevance of the testing results to field operation are two crucial considerations in implementing a reliability test. This article introduces the emerging application-oriented testing concepts and facilities through several component-level and converter-level examples.

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Section: Kv/ka Capacitor Testing Systemmentioning

confidence: 99%

Section: Kv/ka Capacitor Testing Systemmentioning

confidence: 99%

See 1 more Smart Citation

Application-Oriented Reliability Testing of Power Electronic Components and Converters

Wang

Iannuzzo

Bahman

et al. 2022

IEEE Power Electron. Mag.

Self Cite

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“…However, only single electrolytic stresses can be emulated at the same time in those testing methods. Existing methods for emulating realistic high-power capacitor electrical stress have limitations, either being unable to provide the megawatt-level testing requirements in high-power applications [11]- [18] or being able to provide such requirements but with the need for multiple test benches or longer testing time [19].…”

Section: Introductionmentioning

confidence: 99%

A Unified Capacitor Stress Emulation Method for High-Power Converter Applications

Yao

Wang

et al. 2023

IEEE Trans. Power Electron.

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This paper proposes a unified capacitors stress emulation method, which has two unique test capabilities: 1) concurrent electrical stress emulation to AC capacitors and DC capacitors; 2) different electrical stress levels (including different ripple current, ripple voltage, and DC voltage) can be individually controlled for the testing samples. It preserves the advantages of a recently reported method with a minimum required power supply and is robust to testing sample degradation. This method is suitable for application-oriented stress emulation testing with different types of DC / AC capacitors and multiple electrical stresses in high power converter systems. The circuit architecture and testing ability of this method are presented. Moreover, analytical models are derived to size the key components to realize various testing requirements. Proof-of-concept experimental results are presented to verify the feasibility of the proposed test method.

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“…Apart from statistics and empirical failure-rate models (e.g., the MIL-HDBK-217 [54]), the physics-offailure (PoF) based analysis has been developed in recent years to better accommodate power electronics applications involving multiple components and miscellaneous mission profiles (operation conditions) [55], [56]. In existing literature, many methodologies have been proposed for the testing or condition monitoring of power semiconductors [57]- [61] and capacitors [62], [63], etc., which are among the most fragile components (Fig. 1.6 [64]).…”

Section: Useful Lifetimementioning

confidence: 99%

Stability and Reliability Validation of Microgrid Systems

Song

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A Robust Testing Method for DC and AC Capacitors With Minimum Required Power Supply

Cited by 10 publications

References 9 publications

Application-Oriented Reliability Testing of Power Electronic Components and Converters

Application-Oriented Reliability Testing of Power Electronic Components and Converters

A Unified Capacitor Stress Emulation Method for High-Power Converter Applications

Stability and Reliability Validation of Microgrid Systems

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