Detection for Rective Current Based on the Instantaneous Reactive Power Theory

Abstract:

Three-phase circuit instantaneous reactive power theory has received a successful application in detecting harmonic and reactive current timely, the ip-iq and d-q method of first proposed require the phase-locked loop and low-pass filter. The paper make corresponding improvement on the basis of the method based on amplitude integration which only can detect fundamental current , propose a method which can detect the active and reactive current, and the method based on amplitude integration can detect fundamental current of single-phase circuit directly, and simulation. The simulation results show that the method can detect the harmonic and reactive current accurately and timely, and is suitable for various circumstances that three-phase power supply distortion and asymmetry and so on, and when only detecting the harmonic current, it does not require the phase-locked loop and low-pass filter, while detecting the harmonic and reactive current, increases the phase-locked loop; when the method based on amplitude integration is directly used to detect single-phase fundamental current, the phase-locked loop and low-pass filter are not required. The paper deduces the theory of the method and researches on simulation analysis.

• Periodical: Advanced Materials Research (Volumes 433-440)
• Pages: 6565-6571
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.433-440.6565
• Online since: January 2012
• Authors: Xiao Cui Lei, Guang Zeng, Jing Gang Zhang
• Keywords: Detection, D-Q Transformation, Improved, Instantaneous Reactive Power Theory, Reactive Current

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