Abstract
Based XC3S500E FPGA chip as its control core, structuring SOPC system through embedding 32-bit MicroBlaze soft core processor, so that 1KW image acquisition system is implemented. Its main circuit topology consists of DC/DC push–pull converters, DC/AC full-bridge inverters and LC filters. Its sampling circuit consists of ADS1115 A/D converters and associated sensors, realizing the sampling of the PV arrays, DC/DC booster circuits, the voltage and current of inverter circuits. It completes the controller loop design, realizing the I2C interfaces of A/D converters, the PWM generator controlled by MPPT, the SPWM generator controlled by PID and the interactive user interface. The results of the test show that the design of the inverter is reasonable and reliable, and meets the requirements of the power output. Not only its inversion efficiency can be up to 92 %, but also its power factor can be close to 1.
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Acknowledgment
This research was supported by the Tianjin natural science fund(13JCYBJC15800).
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© 2014 Springer International Publishing Switzerland
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Liang, B., Shi, J., Liu, M. (2014). FPGA-Based Single-Phase Photovoltaic Inverter Design. In: Zhang, B., Mu, J., Wang, W., Liang, Q., Pi, Y. (eds) The Proceedings of the Second International Conference on Communications, Signal Processing, and Systems. Lecture Notes in Electrical Engineering, vol 246. Springer, Cham. https://doi.org/10.1007/978-3-319-00536-2_28
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DOI: https://doi.org/10.1007/978-3-319-00536-2_28
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