Improved Particle Filter for Non-Gaussian Forecasting-aided State Estimation

نویسندگان

چکیده

Gaussian assumptions of non-Gaussian noises hinder the improvement state estimation accuracy. In this paper, an asymmetric generalized distribution (AGGD), as a unified representation various unimodal distributions, is applied to formulate forecasting-aided problem. To address problem, novel particle filter method proposed, which integrates near-optimal AGGD proposal function and sampling into typical filter. The can approximate target variables greatly alleviate degeneracy promote precise estimation, through considering both transitions latest measurements. For rapid generation from function, efficient inverse cumulative (CDF) employed, based on derived approximation CDF AGGD. Numerical simulations are carried out modified balanced IEEE 123-bus test system. results validate that proposed outperforms other popular methods in terms accuracy robustness, whether Gaussian, non-Gaussian, or abnormal measurement errors.

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ژورنال

عنوان ژورنال: Journal of modern power systems and clean energy

سال: 2023

ISSN: ['2196-5420', '2196-5625']

DOI: https://doi.org/10.35833/mpce.2021.000805