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2011•Techniques of Automation and ApplicationsRequires access

A New Design of All Digital Phase-Locked Loop Based on DSP 2812

Yunpeng Wang

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Abstract

In view of energy feedback control system requires strict feedback current and grid voltage in phase with the frequency,According to the PLL theory,this paper puts forward a high precision digital phase-locked loop control method based on DSP TMS320F2812.The voltage of grid and current of solar generation are easily collected by capture unit,general timer and compare unit of DSP The conditions of grid-connection about regulation of frequency and phase are achieved.This method is proved to be having high accuracy and high lock speed.The reliability and high efficiency can be ensured.

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What this paper is about

In view of energy feedback control system requires strict feedback current and grid voltage in phase with the frequency,According to the PLL theory,this paper puts forward a high precision digital phase-locked loop control method based on DSP TMS320F2812.The voltage of grid and current of solar generation are easily collected by capture unit,general timer and compare unit of DSP The conditions of grid-connection about regulation of frequency and phase are achieved.This method is proved to be having high accuracy and high lock speed.The reliability and high efficiency can be ensured.

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Available abstract

In view of energy feedback control system requires strict feedback current and grid voltage in phase with the frequency,According to the PLL theory,this paper puts forward a high precision digital phase-locked loop control method based on DSP TMS320F2812.The voltage of grid and current of solar generation are easily collected by capture unit,general timer and compare unit of DSP The conditions of grid-connection about regulation of frequency and phase are achieved.This method is proved to be having high accuracy and high lock speed.The reliability and high efficiency can be ensured.

Key concepts: Phase-locked loop, Digital signal processing, Timer, Grid, Digital signal processor, Reliability (semiconductor), Voltage, Feedback loop

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