Harmonic emission level assessment method based on parameter identification analysis

Tang, Kexuan; Shen, Chen

doi:10.1049/iet-gtd.2018.5205

Cited by 15 publications

(9 citation statements)

References 27 publications

(38 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…With the growth of new non‐linear loads such as wind power generation, urban rail transit and DC charging pile, harmonic pollution is becoming more widespread and complex [1]. Harmonics has negative effects such as failure of capacitor banks, resonance phenomenon, equipment life reduction, power factor reduction, and so on [2].…”

Section: Introductionmentioning

confidence: 99%

A novel method for calculating harmonic contribution based on difference recurrence estimation

Hua,

Gao,

Gao

et al. 2024

IET Generation Trans & Dist

View full text Add to dashboard Cite

Determining the harmonic contribution of each harmonic source is conducive to improving the harmonic management of the power system. The main problem with harmonic contribution calculation is determining the equivalent system harmonic impedance. The previous harmonic impedance calculation method can only calculate the impedance value when the harmonic fluctuation is significant, and the calculation fails when the harmonic fluctuation is small. Therefore, a new method called difference recurrence estimation is proposed to construct the objective function from impedance parameters. The advantages of the proposed method are low data requirement, high estimation accuracy, and excellent tracking performance. An improved genetic algorithm (GA) is presented by integrating an adaptive crossover operator and population intervention into the standard GA to improve the global searching impedance parameter ability. Based on these parameters, harmonic impedance and harmonic contribution are calculated accurately. The superiority of the proposed model is verified through simulation and field cases.

show abstract

Section: Introductionmentioning

confidence: 99%

A novel method for calculating harmonic contribution based on difference recurrence estimation

Hua,

Gao,

Gao

et al. 2024

IET Generation Trans & Dist

View full text Add to dashboard Cite

show abstract

“…The analysis of [18, 19] showed that in the case of a dominant source of distortion (i.e. when other HD sources can be neglected), the method of directed active power [3–6] can be appropriate, whereas in the case of multiple HD sources, the method using reactive power [10] and the method based on the voltage–current ratio [14–17] can perform better. Yet, [10, 14–17] show higher sensitivity to the input data errors than [3–6].…”

Section: Introductionmentioning

confidence: 99%

“…Several approaches to identify the source of HD have been reported in the literature. The reported methods for the detection of HD sources are based on the following principles: analysis of reactive power [10], the principle of superposition [11,12], the concept of critical impedance [9,13], as well as voltage-to-current ratio [14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

“…© 2021 The Authors. IET Generation, Transmission & Distribution published by John Wiley & Sons Ltd on behalf of The Institution of Engineering and Technology [3][4][5][6] can be appropriate, whereas in the case of multiple HD sources, the method using reactive power [10] and the method based on the voltage-current ratio [14][15][16][17] can perform better. Yet, [10,[14][15][16][17] show higher sensitivity to the input data errors than [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Revisiting the active power direction method

Shcherbakova

Senderovych

Abramovitz

2021

IET Generation Trans & Dist

View full text Add to dashboard Cite

This paper presents a re‐examination of the active power direction method for locating the distortion sources in the power distribution network. The inaccuracies in the earlier analysis challenging the active power direction method are identified, and the claim of the inconsistency of the method is re‐examined. The article shows the derivation of the expression for the complex power, from which the equation for the active power flow through the point of measurement was derived in an explicit and in a normalised form. The derivations allow establishing the consumer dominance range at any harmonic frequency easily. Simulation results decisively support the theoretical findings. It is suggested that the main cause of uncertainty associated with the active power direction method is the stochastic nature of the amplitude and, especially, the phase between the harmonic current components.

show abstract

“…First, the undesirable effect of the background harmonic is eliminated using a three-point data selection technique, second, use fuzzy logic to adjust the forgetting factor in CRLS algorithm to estimate the unknown parameters of the utility impedance. In [12], a method based on parameter identification analysis is proposed. The quantitative relationship between standard deviation values of equivalent parameters and harmonic emission levels is studied through theoretical derivations.…”

Section: Introductionmentioning

confidence: 99%

Novel estimation method of utility harmonic impedance based on short‐term impedance minimum variance criterion

Shu¹,

Zhao²,

Xu³

2020

IET Generation, Transmission & Distribution

View full text Add to dashboard Cite

Harmonic emission level assessment method based on parameter identification analysis

Cited by 15 publications

References 27 publications

A novel method for calculating harmonic contribution based on difference recurrence estimation

A novel method for calculating harmonic contribution based on difference recurrence estimation

Revisiting the active power direction method

Novel estimation method of utility harmonic impedance based on short‐term impedance minimum variance criterion

Contact Info

Product

Resources

About