An approach of incorporating harmonic mitigation units in an industrial distribution network with renewable penetration

Ahmed, Mushfiqul; Masood, Nahid‐Al; Aziz, Tareq

doi:10.1016/j.egyr.2021.09.072

Cited by 21 publications

(6 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The method of calculating the energy level of higher harmonics in the form of the sum of the squares of the electromotive force of the groove harmonics, taken when each of the three phases of the stator winding is turned off in sequence, is based on the determination of the dependence of magnetic losses from the groove harmonics of the magnetic field in the air gap on the degree of electromagnetic asymmetry [29,30].…”

Section: Resultsmentioning

confidence: 99%

Research and calculation of the levels of higher harmonics of rotary electric machines in active-adaptive networks

Khomenko,

Nerubatskyi,

Plakhtii

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

In the materials of the article, the parameters of the higher harmonics of the groove frequency are analyzed, which affect the reliability of the operation of electrical equipment and the loss of electrical energy in active-adaptive networks. The influence of higher harmonics of rotary electric machines on the modes of operation of active-adaptive networks and their power equipment is considered. It was established that this influence depends on the energy level of higher harmonics and the modes of operation of active-adaptive networks. A technique is proposed that allows determining the levels of groove harmonic components in the phase windings of electric machines. The calculation of the energy level of higher harmonics was carried out taking into account the electromagnetic asymmetry of rotating electric machines and asymmetric modes of operation of three-phase electric networks using the method of phase coordinates. The obtained results are based on theoretical and experimental studies of the influence of higher harmonics of rotating electric machines on the modes of operation of electrical networks and power energy equipment.

show abstract

Section: Resultsmentioning

confidence: 99%

Research and calculation of the levels of higher harmonics of rotary electric machines in active-adaptive networks

Khomenko,

Nerubatskyi,

Plakhtii

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

show abstract

“…Finally, the total reactive power delivered by each filter, is also calculated as denoted by the vector RP, in (14). Equation (9) will be utilized to determine the required reactive power values.…”

Section: The Parameters Vectormentioning

confidence: 99%

“…Increased levels of Total Harmonic Distortion (THD) in grid bus voltages are caused by greater harmonic current input by both loads and DGs [12,13]. Harmonic currents are injected by loads and DGs with a nonlinear voltage -current attribute, resulting in communication interference, loss of robustness, reduced electricity production, transmission, and utilization efficiency, greater functioning expenses, appliances overheating, parts of ageing, and erroneous energy metering [14]. Active power filters (APFs) are created as a solution to these problems.…”

Section: Introductionmentioning

confidence: 99%

Optimal selection of single tuned passive filters to enhance post‐fault voltage recovery and power quality in a renewable integrated microgrid

Ahmed

Masood

Aziz

2023

IET Renewable Power Gen

Self Cite

View full text Add to dashboard Cite

The harmonic currents produced by nonlinear loads and renewable energy sources (RES) like PV and wind energy have had a growing impact on industrial distribution networks in recent times. Along with harmonic distortions, lack of adequate reactive power support in a heavily loaded renewable‐rich industrial network has made the operation vulnerable to fault‐induced delayed voltage recovery (FIDVR). Due to poor post‐fault voltage recovery, an industrial microgrid is exposed to cascading loss of distributed generators (DGs). Dynamic var sources are being used to prevent cascade tripping. However, they may result in deterioration of the network's THD scenarios. Single tuned passive filters are widely used to suppress harmonic contents. The goal of this work is to design filters so that these become capable to lower overall harmonic distortion while also minimizing the risk of blackouts caused by inadequate post‐fault voltage recovery. To determine the allocation and rating of single tuned passive filters in a renewable‐penetrated industrial microgrid, an optimization model is developed. To show the feasibility and efficacy of the proposed formulation, simulations are performed on a modified IEEE 43 bus system. The findings suggest that the proposed design methodology produces effective solutions to minimize the necessity of additional reactive power sources.

show abstract

“…In spite of the advantages of active filtering devices, single-tuned passive harmonic filters are still widely incorporated in whole-gird harmonic minimization studies. This is mainly due to their easier implementation, lower investment cost, and less maintenance [20][21][22][23][24][25][26]. On the other hand, the fast switching of high currents in active filters may cause electromagnetic interfer-ences in power distribution systems.…”

Section: Introductionmentioning

confidence: 99%

Harmonic Analysis of Large Grid-Connected PV Systems in Distribution Networks: A Saudi Case Study

Al-Sharif

Sowilam

Kawady

2022

International Journal of Photoenergy

View full text Add to dashboard Cite

The increasing penetration of grid-connected PV rooftops at the distribution level still entails significant technical challenges affecting seriously the power quality indices such as harmonics and voltage fluctuations. Owing to the intermittent nature of renewable resources, the changing incident energy from renewables can generate considerable amounts of harmonics. Moreover, power electronic devices and nonlinear loads that are used frequently in the industry may exaggerate the harmonic distortions as well. Accordingly, utilizing suitable filtration techniques for harmonic reduction is crucial. In order to evaluate the impacts of grid-connected PVs in modern grids, a case study on power quality and voltage profile is conducted with a large grid-connected PV microgrid of 9570 kW, feeding a large hospital project in Saudi Arabia as an initial phase of implementing this project in the future. For eliminating the possible increase in harmonic distortion, a single-tuned filter is used to cope with the permissible limits according to the known IEEE standards. This filtering technique is chosen due to its advantages including the simplicity, suitability for significant integer harmonic orders, and low cost. For evaluation tests, a detailed simulation is developed by the ETAP program for the overall selected project as well as the aimed PV subsystem. Several simulation tests are conducted to investigate the harmonic distortion problem. The results show a significant reduction in the individual harmonic distortion (IHD) and the total harmonic distortion (THD) below 8% according to considered IEEE standards for LV networks. Both 6 and 12 pule inverters are considered. This is considered an important step in the realization of such large PV projects in the field.

show abstract

An approach of incorporating harmonic mitigation units in an industrial distribution network with renewable penetration

Cited by 21 publications

References 19 publications

Research and calculation of the levels of higher harmonics of rotary electric machines in active-adaptive networks

Research and calculation of the levels of higher harmonics of rotary electric machines in active-adaptive networks

Optimal selection of single tuned passive filters to enhance post‐fault voltage recovery and power quality in a renewable integrated microgrid

Harmonic Analysis of Large Grid-Connected PV Systems in Distribution Networks: A Saudi Case Study

Contact Info

Product

Resources

About