scholarly journals ANALISA PEMASANGAN FILTER HYBRID TERHADAP BEBAN-BEBAN NON LINIER PADA BLUE POINT BAY VILLA DAN SPA

2018 ◽  
Vol 5 (1) ◽  
pp. 109
Author(s):  
I Wayan Dedy Setiawan ◽  
I Wayan Rinas ◽  
Antonius Ibi Weking
Keyword(s):  
Harmonic Distortion ◽  
Power Losses ◽  
Hybrid Filter ◽  
Blue Point ◽  
Software Analysis ◽  
Electricity System ◽  
Before And After ◽  
Filter Type ◽  
Hybrid Filters ◽  
High Pass

A previous review of harmonic analyzes has been conducted at The Blue Point Bay Villa & Spa hotel, where there are many high non linear loads, resulting in harmonic distortions that have an impact on power losses. The current harmonic content of the electricity system at The Blue Point Bay Villa & Spa hotel does not meet the IEEE 519-1992 standard which results in decreased power quality. This research analyzes the steps of installing high-pass hybrid filter type to reduce harmonic distortion, analyze power losses using ETAP software. Analysis is performed before and after the installation of hybrid filters. The analysis result of hybrid filter simulation can reduce harmonic distortion with THDi value at SDP1 equal to 6,42%, SDP2 equal to 6,41%, SDP3 equal to 6,42%, SDP4 6,41%, and SDP5 6,42%. THDv value simulation results on all SDP before installation of hybrid filter that is 8.80% and after installation of hybrid filter that is 0,13%.

scholarly journals SIMULASI PEREDAMAN DISTORSI HARMONISA MENGGUNAKAN FILTER AKTIF DAN ANALISIS RUGI-RUGI DAYA PADA SISTEM KELISTRIKAN DI HOTEL THE BENE KUTA

2018 ◽  
Vol 4 (2) ◽  
pp. 113
Author(s):  
I Nyoman Agus Sudiatma Pratama ◽  
I Wayan Rinas ◽  
Antonius Ibi Weking
Keyword(s):  
Power Loss ◽  
Harmonic Distortion ◽  
Active Filter ◽  
Total Power ◽  
Electrical System ◽  
Loss Analysis ◽  
Non Linear ◽  
Before And After ◽  
Non Linear Load ◽  
High Pass

A non-linear load operation on a power system will generate harmonics. Operating non-linear loads on the simulated electrical system at the Bene Hotel Kuta created a harmonic current which resulted in power losses. In this study, the simulation used ETAP software, and determined the standard of THD (Total Harmonic Distortion) according to IEEE 519-2014, the standard maximum THDI value 5.0% and THDV maximum 5,0%. Compared the simulation results with the specified standards, installation of a high pass active filter, as well as power loss analysis before and after filter installation. THDI value of simulation result did not still meet the standard, with the average being 9.7%. The installation of a high pass active filter could reduce harmonic distortion with an average THDI value of 1.5% and a THDV value of 0.31%. The total power loss prior to installation of active filter was 153,119.8 Watt and after the installation it became 1,511.2 Watt. The decrease in filter values used 70% of the filter's maximum capability to obtain a more efficient filter, but it still met the specified THD standard. Total loss of power on electrical system was 11,885.5W.

scholarly journals Analysis of the Increase of Transformer Power Losses due to the Operation of Unbalanced Nonlinier Loads

2018 ◽  
Vol 2 (2) ◽  
pp. 38
Author(s):  
I Wayan Rinas ◽  
I Made Suartika ◽  
Anak Agung Maharta Pemayun
Keyword(s):  
Electrical Power ◽  
Harmonic Distortion ◽  
Power Losses ◽  
Loss Analysis ◽  
Before And After ◽  
Transformer Power ◽  
Quality Of Electric Power ◽  
High Level ◽  
The Impact

Non-linear loads are the source of harmonic current for electric utilities. The high level of harmonics greatly affects the increase of losses of electrical power (losses). The quality of electric power is determined by the parameters of power losses that occur in the transformer due to harmonic distortion. In this research will be analyzed THD from result of measurement and simulation in accordance with IEEE 519-2014 standard, power loss analysis on transformer before and after. Harmonics, the impact is increased due to unbalanced linear currents.

scholarly journals Damping Harmonic Distortion Using Active Filter with PID Control at Udayana University Faculty of Engineering Bukit Jimbaran

2018 ◽  
Vol 2 (2) ◽  
pp. 29
Author(s):  
I Made Suartika ◽  
Rukmi Sari Hartati ◽  
I.B.G. Manuaba
Keyword(s):  
Pid Control ◽  
Harmonic Distortion ◽  
Active Filter ◽  
Operating Conditions ◽  
Proportional Integral Derivative ◽  
Power Losses ◽  
Shunt Active Filter ◽  
Before And After ◽  
Proportional Integral Derivative Control ◽  
Simulation Results

Increased THD (Total Harmonics Distortion) in the utility, caused by the increasing operation of non-linear loads. High THD current (THDi) will affect the increase of power losses in the power system. In this study, THD analysis of the simulation results was performed according to IEEE 519-2014 standard on existing condition, shunt active filter operating condition and shunt active filter operating conditions with PID (proportional integral derivative) control, also analyzed losses before and after harmonic impact. The result of losses analysis on existing condition: losses phases R 3.38%, phase S 2.29%, phase T 3.33%. Total losses on existing condition 9.01%. Operation with active shunt filter is obtained losses for phase R 1.60%, phase S 2.46%, phase T 1.67%, so the total losses become 5.73%. While using the active filter with PID control for losses phase R 1.02%, phases S 0.89%, phases T 0.99%, so the total losses fell to 2.18%

Dependence of Current Harmonics of Greenhouse Irradiators on Supply Voltage

2020 ◽  
pp. 85-88 ◽  
Author(s):  
Nadezhda P. Kondratieva
Keyword(s):  
Mathematical Models ◽  
Supply Voltage ◽  
Harmonic Distortion ◽  
Feasibility Studies ◽  
Power Losses ◽  
Voltage Level ◽  
Supply Networks ◽  
Current Harmonics ◽  
Cable Lines ◽  
Harmonic Composition

The article describes the results of the study concerning the effect of the voltage level on current harmonic composition in greenhouses irradiators. It is found that its change affects the level of current harmonics of all types of the studied greenhouse irradiators. With decrease of nominal supply voltage by 10 %, the total harmonic distortion THDi decreases by 9 % for emitters equipped with high pressure sodium lamps (HPSL), by 10 % for emitters with electrode-less lamps and by 3 % for LED based emitters. With increase of nominal supply voltage by 10 %, THDi increases by 23 % for lighting devices equipped with HPSL, by 10 % for irradiators with electrode-less lamps and by 3 % for LED based emitters. Therefore, changes of supply voltage cause the least effect on the level of current harmonics of LED based emitters and then the emitters with electrode-less lamps. Change of the level of supply voltage causes the greatest effect on the level of current harmonics of HPSL based irradiators. Mathematical models of dependence of THDi on the level of supply voltage for greenhouse emitters equipped with LED, electrode-less lamps and HPSL lamps were formulated. These mathematical models may be used for calculations of total current when selecting transformers and supply cable lines for greenhouse lighting devices, for design of new or reconstruction of existing irradiation systems of greenhouse facilities, and for calculation of power losses in power supply networks of greenhouse facilities during feasibility studies for energy saving and energy efficiency increasing projects.

scholarly journals Flexible Tranmission Elements for Grid Optimization

2021 ◽  
Vol 21 (2) ◽  
pp. 53-61
Keyword(s):  
Power Systems ◽  
Electric Power ◽  
Emergency Operation ◽  
Power Losses ◽  
Current Transmission ◽  
Before And After ◽  
Grid Optimization ◽  
Flexible Alternating Current Transmission ◽  
Active Power Losses ◽  
The Stability

The article dwells upon optimizing, reduction of losses in, and improving the stability of grids by implementing devices that affect the parameters and power flows in a grid. State-of-the-art technology for better control is crucial for the development of electric power systems. FACTS technologies or flexible alternating current transmission systems, essentially transform the grid from a passive electricity transport into a device that actively controls the grid parameters. The article analyzes the development of a 500/220/110 kV grid that uses parameter-affective devices: SVC, BSK, LCD. Steady-state parameters, active power losses, and electric power losses were calculated for a year before and after the devices were deployed. Each device was therefore analyzed for effectiveness. The parameters of the SVC-equipped 500/220/110 kV grid were calculated for emergency operation with the 500 kV line being offline. Thus, the paper also analyzes the emergency performance of the SVC.

Optimal ventilation waveforms for estimating low-frequency respiratory impedance

1993 ◽  
Vol 75 (1) ◽  
pp. 478-488 ◽  
Author(s):  
K. R. Lutchen ◽  
K. Yang ◽  
D. W. Kaczka ◽  
B. Suki
Keyword(s):  
Broad Band ◽  
Viscoelastic Model ◽  
Harmonic Distortion ◽  
Low Frequency ◽  
Amplitude Dependence ◽  
Asthmatic Subject ◽  
Healthy Humans ◽  
Before And After ◽  
Airway Opening ◽  
Nonlinear Viscoelastic Model

We present a broad-band optimal ventilator waveform (OVW), the concept of which was to create a computer-driven ventilator waveform containing increased energy at specific frequencies (f). Values of f were chosen such that nonlinear harmonic distortion and intermodulation were minimized. The phases at each f were then optimized such that the resulting flow waveform delivered sufficient volume to maintain gas exchange while minimizing peak-to-peak airway opening pressure. Simulations with a linear anatomically consistent branching airway model and a nonlinear viscoelastic model showed that respiratory resistance (Rrs) and elastance (Ers) estimates at 0.1–2 Hz from the OVW are far superior to those from a standard step ventilator waveform (SVW) during healthy and obstructed conditions and that the OVW reduces the influences of harmonic interactions. Using a servo-controlled oscillator, we applied individual sine waves, an OVW containing energy at 0.15625–2.4 Hz, and an SVW to healthy humans and one symptomatic asthmatic subject before and after bronchodilation. The OVW was markedly superior to the SVW and always provided smooth estimates of Rrs and Ers. Before bronchodilation in the asthmatic subject Rrs was highly elevated and Ers was markedly increased with f; after bronchodilation the level of Rrs and the f dependence of Ers decreased. Although based on results from only one asthmatic subject, these data suggest a dominant influence of airway constriction and lung inhomogeneities during asthmatic bronchoconstriction that is alleviated by bronchodilators. These and other results indicate that the OVW approach has high potential for simultaneously probing f and amplitude dependence in the mechanical properties of clinical subjects during physiological breathing conditions and perhaps during dynamic bronchoconstriction.

scholarly journals STUDI RUGI DAYA SISTEM KELISTRIKAN BALI AKIBAT PERUBAHAN KAPASITAS PEMBANGKITAN DI PESANGGARAN

2015 ◽  
Vol 14 (2) ◽  
pp. 39
Author(s):  
I P. A. Edi Pramana ◽  
W. G. Ariastina ◽  
I. W. Sukerayasa
Keyword(s):  
Peak Load ◽  
Flow Analysis ◽  
Load Flow ◽  
Power Losses ◽  
Electrical Transmission ◽  
Electrical Systems ◽  
Load Flow Analysis ◽  
Electricity System ◽  
Power And Energy ◽  
Plant Capacity

In the years of 2014 until 2015 Pesangaran plant capacity undergo changes due to the expiration of employment contract lease diesel units and also the addition of new plant unit of 200 MW PLTMG. An increase or reduction in plant capacity of electrical system Bali will lead to significant changes to the load flow, power losses and energy losses in the circuit of Bali electrical Transmission system. Load flow analysis and power losses in Bali electricity system is simulated in five scenarios. Scenario 1 for the conditions of existing in 2014, scenario 2 is currently experiencing a reduction Pesanggaran plant capacity in December 2014, scenario 3 is currently experiencing Pesanggaran plant capacity additions in 2015 by using a peak load of 2014, scenario 4 is the scenario 3 with using predicted peak load in 2015, and scenario 5 is the scenario 4 with assuming the Celukan Bawang plant operates at 130 MW. Based on the results obtained by analysis, scenario 2 has the most power and energy loss about 46.34 MW and 300.39 GWh. For the loss of power and energy Bali electrical systems after Pesanggaran plants changes in 2015 are 38.57 MW and 250.05 GWh.

scholarly journals Kajian Gangguan Harmonisa dan Simulasi Perbaikan Sistem Kelistrikan Di Gedung Rektorat Politeknik Negeri Ketapang

2019 ◽  
Vol 11 (2) ◽  
pp. 114-128
Author(s):  
Ivan Suwanda
Keyword(s):  
Harmonic Distortion ◽  
Value Added ◽  
Electrical Equipment ◽  
Harmonic Waves ◽  
Electrical System ◽  
Permanent Damage ◽  
A Value ◽  
Quality Of Electric Power ◽  
High Pass

This research can be used to determine the quality and improvement of the electrical system in the Ketapang State Polytechnic rectorate building. Electrical interference can cause electrical equipment not working to the maximum which can cause permanent damage to the electrical equipment itself. The disturbance can be in the form of harmonic waves. Both of these electrical problems are very difficult for me to improve the quality of electric power. This research uses ETAP 16.00. Improvement efforts in the simulation is to use several filters that will be selected as the best filter that can reduce harmonic waves. Before using the filter the total harmonic distortion (THD) value reached 7.1% THD. After answering with several types of filters namely a single filter set, by-pass, and high-pass (not named) that can reduce harmonics to the maximum is a single filter set with a value of 2.63% THD which means the value is still in the range of THD value added which is a maximum of 5% THD.

An Improved Symmetric H-Bridge Multilevel Converter Topology; An Attempt to Reduce Power Losses

2018 ◽  
Vol 27 (12) ◽  
pp. 1850187 ◽  
Author(s):  
Rasoul Shalchi Alishah ◽  
Seyed Hossein Hosseini ◽  
Ebrahim Babaei ◽  
Mehran Sabahi ◽  
Jaber Fallah Ardashir
Keyword(s):  
Harmonic Distortion ◽  
Power Losses ◽  
Multilevel Converter ◽  
Switching Losses ◽  
Current Path ◽  
Comparison Results ◽  
Converter Topology ◽  
Gate Driver ◽  
Level Converter ◽  
Symmetric Structures

In this paper, a new structure for multilevel converter based on improved H-bridge converter is presented. The proposed topology is a symmetric topology since the values of all voltage sources are equal. The proposed symmetric structure is a general topology which can be extended for any number of voltage levels at output voltage waveform to obtain the least value of total harmonic distortion (THD). Reduction of switching losses, conduction losses, the number of on-state switches in the current path, utilized DC voltage sources, and gate driver circuits are the main advantages of proposed symmetric structures in comparison with other symmetric topologies. All mathematical analysis on the proposed structure is presented in terms of power losses and maximum blocked voltage by switches. The comparison results with other recently presented symmetric topologies and traditional multilevel converter structures are provided. Experimental results for a thirteen-level converter based on presented structure are provided to validate the practicality of the suggested multilevel structure.

scholarly journals EMC studies on systems with hybrid filter circuits for modern aircraft applications

2013 ◽  
Vol 11 ◽  
pp. 237-242 ◽  
Author(s):  
T. Kut ◽  
B. Chand ◽  
A. Lücken ◽  
S. Dickmann ◽  
D. Schulz
Keyword(s):  
Filter Design ◽  
Active Filters ◽  
Hybrid Filter ◽  
Attenuation Effect ◽  
New Approach ◽  
Electric Aircraft ◽  
Filtering Effect ◽  
Sample Measurement ◽  
Hybrid Filters ◽  
New Strategies

Abstract. In this contribution, a new approach for EMC-filter design is presented. Due to the increasing electrification of modern aircraft, as a result of the More Electric Aircraft concept, new strategies and approaches are required to fulfill the strict EMC aircraft standards (DO-160/ED-14 – Sec. 20). Consequently the weight and volume of the used filter components can be reduced. A promising approach could be a combination of passive and active filters. For the same attenuation effect, so-called hybrid filters achieve either savings in weight and volume, or can obtain an additional filtering effect with minimal weight increase of an existing system. In this paper, the underlying theory is explained in detail, carried out in a simulation tool and the gained insight is demonstrated with a sample measurement.

Sign in / Sign up

Export Citation Format

Share Document