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2015•Electronic Design EngineeringRequires access

The research of speed estimation for speed sensorless vector control Based on improved MRAS

Shang Guang-l

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Abstract

This paper discusses the speed sensorless vector control with a method of model reference adaptive system.The reference voltage model can always be affected by the drift of integral calculation in the conventional speed identifier. A modified voltage model rotor flux estimation model is used.And do some experiment on the digital platform based on TMS320F2812 DSP. The experimental results show that the estimated speed has very good consistency with measured speed at starting, acceleration and normal-reverse transfer,Verifying the feasibility and reliability of the improved MRAS speed estimation algorithm.

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What this paper is about

This paper discusses the speed sensorless vector control with a method of model reference adaptive system.The reference voltage model can always be affected by the drift of integral calculation in the conventional speed identifier. A modified voltage model rotor flux estimation model is used.And do some experiment on the digital platform based on TMS320F2812 DSP. The experimental results show that the estimated speed has very good consistency with measured speed at starting, acceleration and normal-reverse transfer,Verifying the feasibility and reliability of the improved MRAS speed estimation algorithm.

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Available abstract

This paper discusses the speed sensorless vector control with a method of model reference adaptive system.The reference voltage model can always be affected by the drift of integral calculation in the conventional speed identifier. A modified voltage model rotor flux estimation model is used.And do some experiment on the digital platform based on TMS320F2812 DSP. The experimental results show that the estimated speed has very good consistency with measured speed at starting, acceleration and normal-reverse transfer,Verifying the feasibility and reliability of the improved MRAS speed estimation algorithm.

Key concepts: MRAS, Control theory (sociology), Vector control, Identifier, Digital signal processing, Computer science, Electronic speed control, Acceleration

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