Modeling a group of consumers in order to analyze power quality

Becirovic, V.; Nikolic, B.; Hanjalic, Selma; Brkić, Matea

doi:10.1109/iyce.2013.6604161

Cited by 8 publications

(4 citation statements)

References 5 publications

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“…In other words, every generator and consumer of electrical energy from analyzed PS should be monitored. Deviation of the rule can occur when having: consumers with only resistive character, consumers with exact mathematical model in frequency domain and consumers with known engaged power dependency on voltage and frequency for every harmonic [6].…”

Section: Monitorsmentioning

confidence: 99%

Voltage conditions estimation in frequency domain of power systems based on measuring power quality

Becirovic

Pavić

Curevac

et al. 2015

2015 5th International Youth Conference on Energy (IYCE)

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Power quality (PQ) is becoming important factor in proper functioning and operating of power systems (PS). Continuous PQ monitoring represents basics for efficient exploitation of power systems. Systems for continuous PQ monitoring and their networking with central system are major investments. This paper lists conditions for modeling of certain PS elements and describes concept of power network modeling in PQ analysis. First part of the paper gives mathematical formulation of the problem; second part describes high voltage transmission line in frequent domain using system of phase values, while the third part of the paper is an example in time domain modeled in EMTP-RV software package using system of phase values. Performance of power network in quasi-stationary state is analyzed and during the simulation five changes of voltage conditions occur as consequence of overloading. The PS is loaded with nonlinear loads generating high current and voltage harmonics. Voltage and current harmonic in the places of energy exchange are observed; furthermore estimation of voltage harmonics in the places with no PQ monitors is conducted. Conclusions of the paper indicate possible usage of presented algorithm for real time PQ analysis and for post PQ analysis. Index Terms--Power Quality (PQ), Voltage Harmonic Estimation (VHE), Power Systems (PS), High voltage line (HVL)

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Section: Monitorsmentioning

confidence: 99%

Voltage conditions estimation in frequency domain of power systems based on measuring power quality

Becirovic

Pavić

Curevac

et al. 2015

2015 5th International Youth Conference on Energy (IYCE)

Self Cite

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“…The interest in the area of power quality is driven mostly by the customers' complaints; therefore many efforts are being made to ensure that good power quality exists at all times. In the work presented by V. Becirovic et al [20]. The main advantage of this classification was to make analysis on the overall system when two or more customers of the same group are having the same interference or problem.…”

Section: Introductionmentioning

confidence: 99%

“…The proposed model is voltage dependent in such a way that the effect of voltage change is observed for every current waveform. The only drawback of the model proposed by Becirovic et al is that it works only for the specified three groups of customers and any change in the classification requires re-identification [20].…”

Section: Introductionmentioning

confidence: 99%

Review of power quality monitoring systems

Ahmad

ElSheikh

Fadoun

2015

2015 International Conference on Industrial Engineering and Operations Management (IEOM)

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Power quality is gaining a lot of interest lately by researchers and engineers as electricity is a vital part of our daily life. The aim of this paper is to survey some of the recent existing systems, techniques and methods that are being used to monitor power quality. The survey focuses mainly on power quality monitoring systems which are composed of various tools, software, communication links etc. that work together as one coherent system. Another goal is to develop an understanding about the quality management in the area of power industry. Some of the methods and techniques that are presented discuss about power quality meter placement techniques. Finding the best locations to place the power quality monitors in the electrical grid is done by developing algorithms and approaches to find the appropriate number of monitors and the appropriate locations to place them in order to reduce the cost of the PQM system and increase its efficiency. The paper discusses the basic idea of each method or system in order to have an understanding about its importance and role. Then, a simple comparison is made between the techniques in terms of their advantages and disadvantages. After that, international industry practices and guidelines for power quality monitoring and management are discussed. Lastly, some examples for the efforts that are made in the area of power quality improvement are discussed. , investigated the power quality monitoring system over the internet. The power quality monitoring system is defined as a collection of technologies including a web server, computers, communication networks and specialized PQM. The system transmits high-quality data over the communication line. The system uses technologies like GPS in order to synchronize the

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“…Harmonics are existing from the earlier days of industry and still are caused by the nonlinear magnetizing impedances of transformers, reactors, fluorescent lamp ballasts, etc. In addition, power electronic devices have become abundant today and because of their capabilities for precise process control and energy savings benefits [3] [7].…”

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confidence: 99%

DG Penetration for Household Nonlinear Loads as a Solution to PQ Enrichment

2016

8th International Conference on Latest Trends in Engineering and Technology (ICLTET-2016) May 5-6 2016 Dubai (UAE)

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In the recent years, power quality has become a very predominant issue for research, contributing a majority from residential loads. As the new technologies in house hold appliances are developed with solid state switching devices, it introduces nonlinearity into the system causing harmonics, voltage fluctuation, poor power factor etc. This can be eliminated to a remarkable extent by using a standalone solar system with battery backup to supply lighting and frequently used essential low power devices. The system can be implemented without much compromise in the installation cost. Penetration of Distributed Generation(DG) into the system improves the reliability of power supply, possibly at a lower cost over a period of time. The effectiveness of the use of standalone DG for household applications is discussed in this paper with a view to decrease the Total Harmonic Distortion on the line when they are operated with AC supply. The simulation is carried out using MATLAB/Simulink and the results are verified through experimental findings.

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Modeling a group of consumers in order to analyze power quality

Cited by 8 publications

References 5 publications

Voltage conditions estimation in frequency domain of power systems based on measuring power quality

Voltage conditions estimation in frequency domain of power systems based on measuring power quality

Review of power quality monitoring systems

DG Penetration for Household Nonlinear Loads as a Solution to PQ Enrichment

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