一种基于自适应预测控制的电流型数字功率放大器

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Abstract Least square method is used to online estimate filter inductor and load parameter of current digital power amplifier. According to the instruction current,together with the relationship between the output current in switching cycle and the average voltage provided by switch, on-off time of switch is determined. Different switch is selected to insert dead time according to the direction of predictive output current. For the large calculations of self-adaptive predictive control, control system is set up with field-programmable gate array EP3C25Q240C8 and a less pipeline stages multiply- accumulator is developed. The results show that the developed current digital power amplifier has the fast response and high control accuracy.

Key words： Substation simulation system power amplifier self-adaptive predictive control FPGA

Received: 30 July 2013 Published: 14 September 2015

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TM743

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	Zhang Bingda
	Yuan Kui

Cite this article:

Zhang Bingda,Yuan Kui. A Current Digital Power Amplifier Based on Self-Adaptive Predictive Control[J]. Transactions of China Electrotechnical Society, 2015, 30(16): 162-167.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2015/V30/I16/162

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