Abstract
Single-phase bridge uncontrolled rectifiers are widely used in power electronic devices. Their DC-side energy storage capacitors play a key role in filtering, stabilizing the output voltage, and so on. In practice, it is difficult to measure the DC-side energy storage capacitance of rectifiers inside the device directly. Therefore, this paper gives an idea about a non-invasive measuring method for DC-side energy storage capacitance of single-phase bridge uncontrolled rectifiers. First, the single-phase bridge uncontrolled rectifier is modeled and analyzed considering the network impedance. Then, the DC-side energy storage capacitance is calculated by measuring the data of the source-side. Finally, the simulation analysis is conducted, and the calculated values are compared with the actual values. The results show that the capacity of the capacitor which calculated by the method put forward in this article is close to actual capacitance, which validates the availability of this method. This method has advantages of convenient calculation and engineering significance.
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Acknowledgment
This research was supported by the Science and Technology Project of China Southern Power Grid (090000KK52190169/SZKJXM2019669).
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Yang, Z., Zhu, M., Zhang, H., Gao, M. (2023). Non-invasive Measurement Method for DC-Side Energy Storage Capacitance of Single-Phase Bridge Uncontrolled Rectifiers. In: Hu, C., Cao, W. (eds) Conference Proceedings of 2022 2nd International Joint Conference on Energy, Electrical and Power Engineering. CoEEPE 2022. Lecture Notes in Electrical Engineering, vol 1060. Springer, Singapore. https://doi.org/10.1007/978-981-99-4334-0_12
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DOI: https://doi.org/10.1007/978-981-99-4334-0_12
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