Amirullah Ubhara Surabaya
CURRENT HARMONICS QUALITY MITIGATION TECHNIQUE FOR THREE-PHASE POWER SYSTEM BASED ON EXTENDED
FRYZE ADAPTIVE NOTCH FILTER
Abstract
- Introduction
- Principle operation of shunt APF
- Principle Of Current Control System
- Adaptive Notch Filter
- Reference current estimation
- Result and Analysis
The instantaneous source current of the overall system is given in Equation 1 where 𝑖𝑠(𝑡) is the source current, 𝑖𝐿(𝑡) is the load current and 𝑖𝐶(𝑡). The instantaneous load power 𝑝𝐿(𝑡) can be determined based on equation 4 given as. Meanwhile, the updated frequency law is based on the summation of the error signal of all three phases.
DC Link Reference
Non-linear load (3 Phase rectifier with 3
Simulation Results
To evaluate the APF currents, details of the reference current, compensation current and filter current are given in Figure 4. The total harmonic distortion value of the source current after connection of APF is found to reduce to 3.20% due to the compensation current as shown in Figure 5. The waveforms of the voltage source, load current and source current after compensation for both given loads are shown.
Experimental Results
Furthermore, the EFANF adaptability to dynamic changes is also simulated for the loads' changes from 36 ohms to 50 ohms and 50 ohms to 82 ohms. The simulated waveforms are presented in Figure 12 for both conditions, where the figure illustrates source voltage, load current and source current. The findings confirmed the ability of the EFANF to produce the corresponding reference current within both stationary and transient conditions.
Conclusions
The algorithm extracted the fundamental component and mitigated the harmonics in balanced load conditions based on the analyzes of steady state and transient states. The performance of the proposed algorithm has also been verified for different types and values of reactive loads, both in simulation and experimental work. In terms of performance, the EFANF has succeeded in producing the THD according to the requirements of the IEE standard.
Nomenclatures
Subudhi, Performance enhancement of active power shunt filter using a Kalman filter-based H∞ control strategy, IEEE Trans. Chen, DC-Link voltage regulation using RPFNN-AMF for three-phase active power filter, IEEE Access. Liu, Current reference control for active shunt power filters under unbalanced and distorted supply voltage conditions, IEEE Approach.
REVIEW FORM
Title of paper: CURRENT HARMONICS QUALITY MITIGATION TECHNIQUE FOR THREE-PHASE POWER SYSTEM BASED ON EXTENDED FRYZE ADAPTIVE NOTCH FILTER
Technical aspects
Comments to the authors (You may use another sheet of paper.)
- In the conclusion of the abstract section state the most significant THD improvement of the source current with the proposed method using either the results of Matlab simulations or the results of
- Use italic models to write quantities and units in Table 1 (use Microsoft Equation)
- Create Figure 6a and Figure 6b in two rows of the figures table respectively (not in the double- column model)
- Create Figure 7a and Figure 7b in two rows of the figures table respectively (not in the column model)
- Create Figure 9a, Figure 9b, and Figure 9c in three rows of the figures table respectively (not in the three-column model)
- Create Figure 10a, Figure 10b, and Figure 10c in three rows of the figures table respectively (not in the three-column model)
- Create Figure 11a and Figure 11b in two rows of the figures table respectively (not in the double column model)
- Create Figure 12a and Figure 12b in two rows of the figures table respectively (not in the double column model)
- Make Fig 17a, Fig 17b, Fig 17c, and Fig 17d in the form of a four-row table respectively (not in the double column model)
- Describe in detail the weaknesses of your method and the future work needed to improve these weaknesses. Explain in a last single paragraph in the conclusion section
Make Figure 17a, Figure 17b, Figure 17c, and Figure 17d into a four-row table (not a double-column model). double column model).
Recommendation (Tick one)
Comments to the editors (These comments will not be sent to the authors)
One of the devices that demonstrate a solid ability to eliminate harmonics is the Active Power Filter (APF) system. The main body of the article is the proposed Extended Fryze Adaptive Notch Filter (EFANF) as the main algorithm component. In addition to the adaptability of the ANF, the algorithm also provides self-synchronization for the EFANF.
Create figure 6a and figure 6b respectively in two rows of the figure table (not in the double column model). Create figure 7a and figure 7b respectively in two rows of the figure table (not in the double column model). Based on the given THD values, it can be proven that EFANF can provide the effective SAPF reference current to reach the IEEE standard for the value of the harmonic below 5%.
Comment [WU7]: 7.Make Figure 11a and Figure 11b respectively in two rows of the table of figures (not in the double-column model). Comment [WU8]: 8.Make Figure 12a and Figure 12b in two rows respectively of the figure table (not in the double-column model). The prominent role of the DSPACE is to implement the harmonic extraction algorithm, which will generate the reference current based on the EFANF.
For the experiment, the system's supplied voltage is set to 50 Hz, 100 Vrms (line-to-line voltage). The experimental results of using the proposed EFANF algorithm with PI DC-link control for resistive loads are shown in Figure 16. Create Figures 16a to Figure 16f respectively in six rows of the figure table (not in the double-column model).
OUTLINING HOW THE ISSUES ARE ADDRESSED
Address all the concerns/recommendations of the reviewers
All amendments made are to be highlighted in red color in the revised paper
Reviewer # 1 Final
Recommendation
Accepted without modification
Accepted with minor corrections
Accepted with major modification
Rejected
Reply/Action taken
What is the difference between the results performed by the proposed method in both IEC and IEEE. Basically, the IEEE standard is applied at the PCC and should not be applied at equipment or location within user facilities. Based on IEEE standard 519-2022, it specifies that the current distortion for TDD should not exceed 5% in electric power systems.
Meanwhile, the IEC standard focuses more on broad design goals separated based on medium voltage (MV), high voltage (HV), and extra high voltage (EHV). For the limitation to the . harmonics limit set by both standards, as standard for harmonics value in IEEE is lower than IEC, IEEE standard is met. Referring to the standards, the result obtained by the proposed method has been achieved to meet the requirements for both.
Final
The differences should be emphasized in the introduction. currently explained is a continuation of the next article. The algorithm is used in the following article. is pure ANF reference generation using base generation without any. The simulation diagrams should be included in section 4. The Y diagram developed in MATLAB Simulation is included in the article.
The proposed approach is to be applied to unbalance in three-phase system to verify the robustness and effectiveness of the proposed approach. Y For the current paper, the scope of the paper is set to a three phase – three wire balanced system. In terms of robustness, it is currently done by using transient response. of different types of loads and different values of loads. the proposal that the approach should be used for imbalance three. phase system to verify the robustness and effectiveness of the proposed approach will be considered for improvement i.
Y To summarize the SAPF process in the form of visualization, is a flowchart that explains the flow of the process. The results of simulation and experimental sections should be compared, especially the figures. Y The result of both simulation and experimental is summarizes. implication of the results against each other in the results section.
Harmonic Current Reduction for Three-Phase Power System Based on Extended Fryze Adaptive Notch Filter”.
Reviewer # 3 Final
Describe in detail the weaknesses of your method and the future work required to improve these weaknesses. Y The algorithm still depends on two coefficients y and ε for the algorithm to work effectively. To improve the effectiveness of coefficients, in the future. work is recommended to obtain the best possible coefficient values.
Recommendation modification corrections modification
Harmonic Current Limitation for Balanced Three Phase Power System Based on Extended Fryze Adaptive Notch Filter Comments [TSHBM@AR2R1]: The title of the article has been changed and added for balanced system. The instantaneous current source of the total system is given in equation 1, where 𝑖𝑠(𝑡) is the source current, 𝑖𝐿(𝑡) is the load current and . Comment [TSHBM@AR8R7]: The proposed method currently explained is a continuation of the following article.
The instantaneous load power 𝑝𝐿(𝑡) can Fig.d out based on equation 4 given as. To estimate the APF currents, the details of the reference current, offset current and filter current are given in Fig. Commented [TSHBM@AR17R16]: The FFT used to obtain the THD value is based on the Simulink toolbox.
Create figure 6a and figure 6b in two rows of figure table (not in two column model) - (figure changed to figure 8). Create Figure 7a and Figure 7b in two rows of the figure table (not in the two-column model) - (the figure changes to figure 9). Create figure 9a, figure 9b, and figure 9c in three rows of the figure table (not in the three-column model) - (the figure changes to figure 11).
The experimental results of using the proposed EFANF algorithm with PI DC link control for resistive loads are shown in Fig. Make Figure 12a and Figure 12b respectively in two rows of the figure table (not in the double column model). Nevertheless, the THDs of the three-phase power supply are monitored to see the effectiveness of the algorithm in the experimental work, where the THD value can be seen in Fig.
CURRENT HARMONICS QUALITY MITIGATION TECHNIQUE FOR THREE-PHASE POWER SYSTEM BASED ON EXTENDED FRYZE ADAPTIVE NOTCH FILTER
Editor-in-Chief of MIMechE, Journal of Engineering Science & Technology (JESTEC) http://jestec.taylors.edu.my. On behalf of the Editorial Board, I would like to thank you for your contribution in reviewing the following paper submitted to our journal. Professor and Dean, Faculty of Science Engineering and Technology Director, Amity Institute of Food Technology.
Davoud Habibzadeh, Ph.D (Sciences and Food Industries Engineering - Food Technology) Department of Food Science and Technology of Agriculture. Faculty of Nutritional Sciences and Food Industries Islamic Azad University of Tabriz, Tabriz IranEmail: [email protected]. Department of Mechanical Engineering, Vasireddy Venkatadri Institute of Technology, Nambur, Gutur Dist., A.P. Electrical Engineering) Study program of Electrical Engineering Faculty of Engineering.
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