Evaluation of Active Capacitor Bank for Floating H-bridge Power Modules
| Autor: | Tam K.T. Nguyen, David L. Vrtachnik, M. Belkhayat, Jacob Verhulst, Bo Wen, Rolando Burgos, Dushan Boroyevich |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Materials science business.industry 020208 electrical & electronic engineering Ripple Electrical engineering High voltage Hardware_PERFORMANCEANDRELIABILITY 02 engineering and technology Power factor H bridge 01 natural sciences law.invention Capacitor Hardware_GENERAL law Power module 0103 physical sciences Hardware_INTEGRATEDCIRCUITS 0202 electrical engineering electronic engineering information engineering business Voltage Power density |
| Zdroj: | 2020 IEEE Applied Power Electronics Conference and Exposition (APEC). |
| DOI: | 10.1109/apec39645.2020.9124120 |
| Popis: | H-bridge power modules can be used as Perturbation Injection Units (PIUs) for Impedance Measurement Unit (IMU) application. However, DC side floating capacitors in the modules are subject to high voltage fluctuation due to the presence of reactive harmonic components during perturbation injections. Utilizing large capacitors to compensate the ripple as in traditional methods makes the system bulky. In this paper, an active capacitor is integrated with the floating H-bridge power module to remove the effect of ripple power on the DC-link voltage. The auxiliary circuit, which is smaller in size compared to an equivalent passive capacitor, helps increase power density and improve the injection capability of the system. The effectiveness of the active capacitor is verified through simulation results. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|