scholarly journals Analisis Arus Bocor pada Sistem PLTS Terhubung ke Jaringan Tanpa Transformator Terhadap Keselamatan Manusia

Electrician ◽  
2020 ◽  
Vol 14 (3) ◽  
pp. 95-99
Author(s):  
Diah Permata ◽  
Hekson Yulian N ◽  
Endah Komalasari
Keyword(s):  
Leakage Current ◽  
Parasitic Capacitance ◽  
Matlab Simulation ◽  
Pv System ◽  
Common Mode ◽  
Phase Inverter ◽  
Pv Panel ◽  
Simulation Results ◽  
Current Inverter ◽  
Maximum Limit

Intisari — Sistem PLTS yang terhubung ke jaringan tanpa transformator merasakan arus bocor akibat adanya kapasitansi parasitik pada panel surya yang diketanahkan dan hubungan galvanis antara sumber DC dan jaringan. Arus bocor berbahaya bagi keselamatan manusia yang menyentuh panel surya. Penelitian ini menghitung arus bocor melalui simulasi menggunakan Matlab. Rangkaian simulasi terdiri dari sumber DC PLTS, inverter satu fasa, sumber AC jaringan, filter dan kapasitansi parasitik. Kapasitansi Parasitik dimodelkan dengan sebuah kapasitor tunggal. Kondisi panel basah atau kering memberikan nilai kapasitansi yang berbeda. Hasil simulasi menunjukkan bahwa kondisi panel basah menghasilkan arus bocor sepuluh kali lebih tinggi dari kondisi panel kering. Arus bocor pada kedua kondisi masih dibawah batas maksimum standar keselamatan mengacu pada DIN VDE 0126-1-1.Kata kunci — arus bocor, PLTS, kapasitansi parasit, arus common mode, inverter.Abstract — PV system on grid transformerless experiences leakage current due to parasitic capacitance on grounded-PV panel and a galvanic connection between the grid and the dc source. Leakage current is harmful for human who touch the PV panel. This research calculates the leakage current via simulation using Matlab. Simulation circuit consists of DC source as PV system, one phase inverter, grid AC source, filter and parasitic capacitance. A single capacitor is used to model parasitic capacitance. Wet and dry condition of PV panel generate a different capacitance. The simulation results show wet PV panel produce a leakage current ten times higher than that in dry PV panel. The leakage curent either in wet and drycondition are below maximum limit of DIN VDE 0126-1-1 safety standard.Keywords— leakage current, PV system, parasitic capacitance, common mode current, inverter.

Leakage Current Paths in PV Transformer-Less Single-Phase Inverter Topology and Its Mitigation through PWM for Switching

2015 ◽  
Vol 6 (1) ◽  
pp. 148
Author(s):  
M. N. H. Khan ◽  
K. J. Ahmad ◽  
S. Khan ◽  
M. Hasanuzzaman
Keyword(s):  
Leakage Current ◽  
Single Phase ◽  
Current Issue ◽  
Cost Effective ◽  
Parasitic Capacitance ◽  
Phase Inverter ◽  
Simulation Results ◽  
Single Phase Inverter ◽  
Distribution Generation ◽  
Inverter Topology

<p>The Photovoltaic (PV) is a part and parcel and well known for cost-effective and easy to operatefeatures when it is used with transformer-less inverter-based grid-tied distribution generation systems. It reduces the leakage current issue that actually occurs making paths from PV penal to ground. In this paper has been addressed this issue as main problem for reducing leakage current. Moreover, here iscompared the proposed topology’s results to AC and DC-based transformer-less topologies. The possibilities of larger number of leakage current paths indicatepower loss, which is the focus of work in this paper for different switching conditions. The results on leakage current paths using PSpice with different parasitic capacitance values from inverters of different topologies are compared with the simulation results of the topology proposed in this paper.</p>

Comparative Analysis of Grid Connected Photovoltaic Based Z-Source Inverter with PI and PID Controllers

2017 ◽  
Vol 14 (1) ◽  
pp. 577-584
Author(s):  
S Kamalakkannan ◽  
D Kirubakaran
Keyword(s):  
Comparative Analysis ◽  
Pid Controllers ◽  
Grid System ◽  
Pv System ◽  
Matlab Simulink ◽  
Pv Inverter ◽  
Pv Panel ◽  
Time Period ◽  
Ac Current ◽  
Simulation Results

In this work, a grid system attached Z-Source inverters for PV system with perturb and observation algorithm is projected for changing irradiance and to use full obtainable PV power. The boost operation of PV power is attained in inverter using the perception of shoot-through time period. The PV inverter is an important component in a PV system. It executes the conversion of variable DC output of the PV panel module(s) in to pure sinusoidal 50Hz AC current. This pure sinusoidal AC in turn is fed to the grid connected system. The simulation is carried out in Matlab/Simulink platform and benefits of projected systems are emphasised with the aid of simulation results.

scholarly journals Adaptive proportional integral controller based on ann for dc link voltage control single-phase inverter connected to grid

2021 ◽  
Vol 2 (2) ◽  
pp. C20A22-1-C20A22-6
Author(s):  
Mamadou Traore ◽  
◽  
Alphousseyni Ndiaye ◽  
Amadou Ba ◽  
Senghane Mbodji ◽  
...  
Keyword(s):  
Neural Networks ◽  
Single Phase ◽  
Harmonic Distortion ◽  
Pv System ◽  
Phase Inverter ◽  
Proportional Integral ◽  
Integral Controller ◽  
Proportional Integral Controller ◽  
Simulation Results ◽  
Single Phase Inverter

The output power of the inverter of a PV system is directly affected by the DC-link voltage. Hence an adaptive Proportional Integral controller based on Artificial Neural Networks is developed in this paper. MATLAB/Simulink is used for the simulation of the studied system in order to evaluate the performance of the proposed methods. Simulation results show that the proposed API-ANN is faster to track the DC-link voltage than the conventional method. The injected harmonics to the grid were significantly reduced with API-ANN (0.08 % of total harmonic distortion) in comparison with the classic PI with 4.23 %. The API-ANN gives a good performance than the classic PI.

Dynamic Performance Comparison for MPPT-PV Systems using Hybrid Pspice/Matlab Simulation

2016 ◽  
Vol 17 (5) ◽  
pp. 529-539 ◽  
Author(s):  
N. Aouchiche ◽  
M. Becherif ◽  
A. HadjArab ◽  
M. S. Aitcheikh ◽  
H. S. Ramadan ◽  
...  
Keyword(s):  
Dynamic Performance ◽  
Performance Comparison ◽  
Atmospheric Conditions ◽  
Matlab Simulation ◽  
Pv System ◽  
Simulation Tools ◽  
Pv Systems ◽  
Pv Panel ◽  
Simulation Techniques ◽  
Power Point

Abstract The power generated by solar photovoltaic (PV) module depends on the surrounding irradiance and temperature. This paper presents a hybrid Matlab™/Pspice™ simulation model of PV system, combined with Cadence software SLPS. The hybridization is performed in order to gain the advantages of both simulation tools such as accuracy and efficiency in both Pspice electronic circuit and Matlab™ mathematical modelling respectively. For this purpose, the PV panel and the boost converter are developed using Pspice™ and hybridized with the mathematical Matlab™ model of maximum power point method controller (MPPT) through SLPS. The main objective is verify the significance of using the proposed hybrid simulation techniques in comparing the different MPPT algorithms such as the perturbation and observation (P&O), incremental of conductance (Inc-Cond) and counter reaction voltage using pilot cell (Pilot-Cell). Various simulations are performed under different atmospheric conditions in order to evaluate the dynamic behaviour for the system under study in terms of stability, efficiency and rapidity.

scholarly journals Analysis of transformer less inverter for PV applications

2018 ◽  
Vol 7 (2-1) ◽  
pp. 427
Author(s):  
Selvamathi R ◽  
Indragandhi V ◽  
Ashok kumar L
Keyword(s):  
Leakage Current ◽  
Research Paper ◽  
Parasitic Capacitance ◽  
Pv System ◽  
Safety Issues ◽  
Pv Systems ◽  
Pv Inverter ◽  
The Cost

To enhance the effectiveness and decrease the cost of a Photovoltaic (PV) system, the utilization of transformer less PV inverters is an option of expanding interest. In any case, this topology should be considered in detail, as it shows a few issues like effectiveness degradation and safety issues identified with the galvanic association between the system and the PV generator.In this research paper, a review of standalone and grid-connected PV inverter structures has been done. From one viewpoint, a few options in light of established structures have been introduced. At last parasitic capacitance in PV arrays and leakage current produced from PV systems are examined.

scholarly journals Current Source AC-Side Clamped Inverter for Leakage Current Reduction in Grid-Connected PV System

Electronics ◽  
2019 ◽  
Vol 8 (11) ◽  
pp. 1296 ◽  
Author(s):  
Li ◽  
Wang ◽  
San ◽  
Guo
Keyword(s):  
Leakage Current ◽  
Single Phase ◽  
Current Source ◽  
Electrolytic Capacitor ◽  
Modulation Method ◽  
Switching Frequency ◽  
Pv System ◽  
Common Mode ◽  
Common Mode Voltage ◽  
Single Phase Inverter

For the grid-connected photovoltaic inverters, the switching-frequency common-mode voltage brings the leakage current, which should be eliminated. So far, many kinds of single-phase inverters have been published for this purpose, but most of them are the conventional voltage-type ones, which have the disadvantages of poor reliability due to the DC-link electrolytic capacitor and the risk of short-through of the bridge switches. To solve this technical issue, a novel current source inverter with AC-side clamping is proposed to mitigate the switching-frequency common-mode voltage. Meanwhile, a novel modulation method is proposed for the new single-phase inverter to achieve low-frequency operation of the main switches, which reduces the switching losses. Finally, the proposed method is implemented on the TMS320F28335DSP + XC6SLX9FPGA digital hardware platform. Also, the performance comparisons are done with the traditional solution. The results prove the proposed solution.

scholarly journals Modeling, Simulation and Implementation of PV System by Proteus Based on Two-diode Model

2020 ◽  
Vol 1 (1) ◽  
pp. 39-51
Author(s):  
Salam Jabr Yaqoob ◽  
Adel A. Obed
Keyword(s):  
Experimental Measurement ◽  
System Model ◽  
Measurement Information ◽  
Pv System ◽  
Real Component ◽  
Modeling Simulation ◽  
Pv Panel ◽  
Proposed Model ◽  
Mathematical Equations ◽  
Simulation Results

The outcome from the present work is to propose a two diodes PV system model using Proteus software. This model is instituted on mathematical equations that describe the analogous to a two diodes PV panel circuit. This includes the source of photocurrent, two diodes, a parallel, and series resistors. Since Proteus software provides in its library many electronic boards and microcontrollers, the associated model is simulated by this more accurate and nearest software to real time implementation. The proposed model is confirmed by emulating its specification through experimental measurement information. Hence, this PV system model is linked to the Arduino Board with sensors for current and voltage so as to attain and monitor the PV system quantities voltage, current and power. To validate the propose PV system experimentally, a real component of a prototype PV system has been implemented and the obtained results reveal its corresponding simulation results

scholarly journals An Intelligent Maximum Power Point Using a Fuzzy Log Controller under Severe Weather Conditions

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Khaled Bataineh
Keyword(s):  
Fuzzy Logic Controller ◽  
Fuzzy Controller ◽  
Weather Condition ◽  
Weather Conditions ◽  
Pv System ◽  
Maximum Power Point ◽  
Partial Shading ◽  
Pv Panel ◽  
Simulation Results ◽  
Power Point

This study is aimed at providing a comparison between fuzzy systems and convectional P&O for tracking MPP of a PV system. MATLAB/Simulink is used to investigate the response of both algorithms. Several weather conditions are simulated: (i) uniform irradiation, (ii) sudden changing, and (iii) partial shading. Under partial shading on a PV panel, multipeaks appeared in P-V characteristics of the panel. Simulation results showed that a fuzzy controller effectively finds MPP for all weather condition scenarios. Furthermore, simulation results obtained from the FLC are compared with those obtained from the P&O controller. The comparison shows that the fuzzy logic controller exhibits a much better behavior.

Sign in / Sign up

Export Citation Format

Share Document