Voltage-Source Control of PV Inverter in a CERTS Microgrid

2014 ◽  
Vol 29 (4) ◽  
pp. 1726-1734 ◽  
Author(s):  
Wei Du ◽  
Qirong Jiang ◽  
Micah J. Erickson ◽  
Robert H. Lasseter
Keyword(s):  
Source Control ◽  
Voltage Source ◽  
Pv Inverter

Fault and System Analysis Model of Voltage Source Control Based HVDC Transmission System

2021 ◽  
Author(s):  
Fahim Shahriyar ◽  
Monirul Islam ◽  
Arindom Chakraborty ◽  
Mehedi Hasan ◽  
Hasan U. Zaman ◽  
...  
Keyword(s):  
System Analysis ◽  
Transmission System ◽  
Source Control ◽  
Voltage Source ◽  
Analysis Model ◽  
Hvdc Transmission

Power quality enrichment using enhanced adaptive control-detuned-LC proposal in voltage source control conquered distributed generation with hardware implementation

2018 ◽  
Vol 41 (9) ◽  
pp. 2451-2464
Author(s):  
Moushumi Patowary ◽  
Gayadhar Panda ◽  
Bimal C Deka
Keyword(s):  
Reactive Power ◽  
Adaptive Controller ◽  
Comparative Assessment ◽  
Source Control ◽  
Voltage Source ◽  
Current Harmonics ◽  
Point Of Common Coupling ◽  
Artificial Neural Network Ann ◽  
Lc Filter ◽  
Total Impedance

This paper presents the collective operation and comparative assessment of artificial neural network (ANN)-based adaptive controller with detuned-inductor capacitor (LC) filter facility in grid-tied voltage source control (VSC) system. In order to facilitate proper shaping of VSC outputs and to avoid voltage surge or current surge issues that may occur during the synchronization, the controlling action should reflect importance of total impedance (Zt) effect for: (i) accurate online weight updating, (ii) generation of correct references for proper shaping of VSC outputs, (iii) accurate assessment and exclusion of current harmonics and (iv) robust in defending any system perturbation. This impedance is taken into consideration during the run-time weight updation process through extended control steps in order to pass over various losses that certainly occurs in transformers, filters, line parameters and so forth. Performance of the system is well improved with an inclusion of total impedance (Zt) measured between the VSC and point of common coupling (PCC). A detuned-LC filter is predominantly intended for reactive power compensation, power factor correction, prompt and accurate alleviation of the harmonics. A comparative assessment in between enhanced and conventional adaptive controllers that are designed in MATLAB/Simulink clarifies the robust performances of the proposed control design under sundry system turbulences. The verification of the proposed enhanced controller is approved with the hardware results obtained using dSPACE RTI 1202 kit.

scholarly journals Adaptive Fuzzy PI Current Control of Grid Interact PV Inverter

2018 ◽  
Vol 8 (1) ◽  
pp. 472 ◽  
Author(s):  
R.S. Ravi Sankar ◽  
S.V. Jayaram Kumar ◽  
G. Mohan Rao
Keyword(s):  
Power Generation ◽  
Pulse Width Modulation ◽  
Fuzzy Controller ◽  
Pi Controller ◽  
Current Control ◽  
Reference Voltage ◽  
Voltage Source ◽  
Pv Inverter ◽  
Photo Voltaic ◽  
Pv Power Generation

Now a day‟s, Photo Voltaic (PV) power generation rapidly increasing. This power generation highly depending on the temperature and irradiation. When this power interface with grid through the voltage source inverter with PI controller. Its gains should be updated due to the parametric changes for the better performance. In This Work Fuzzy Controller updates the gains of the proportional integral (PI)s Controller under variable parametric conditions. the gaines of the PI Controller are updated based on the error current and change in error current through the fuzzy controller. The error current in direct and quadrature frame are the Inputs to the PI controller. The PI Controller generates the reference voltage to the pulse width modulation technique. Here reference voltage is compared with the carrier signal to generate the pulses to the 3-Ph Inverter connected to the grid. This controller has given well dynamic response with less steady state error and also given The less THD of the grid current compared to the PI and Fuzzy controller.It Is implemented and verified in MATLAB Simulink.

scholarly journals Voltage source control of offshore all‐DC wind farm

2019 ◽  
Vol 13 (16) ◽  
pp. 2986-2993
Author(s):  
Renxin Yang ◽  
Gang Shi ◽  
Xu Cai ◽  
Xiaoping Zhang
Keyword(s):  
Wind Farm ◽  
Source Control ◽  
Voltage Source

scholarly journals Voltage source control of offshore all-DC wind farm

2019 ◽  
Vol 2019 (18) ◽  
pp. 4718-4722
Author(s):  
Renxin Yang ◽  
Gang Shi ◽  
Xu Cai ◽  
Xiaoping Zhang
Keyword(s):  
Wind Farm ◽  
Source Control ◽  
Voltage Source

scholarly journals Direct control of active and reactive power for a grid-connected single-phase photovoltaic inverter

2021 ◽  
Vol 12 (1) ◽  
pp. 139
Author(s):  
Eyad Radwan ◽  
Mutasim Nour ◽  
Ali Baniyounes ◽  
Khalid S. Al Olimat ◽  
Emad Awada
Keyword(s):  
Power Factor ◽  
Power Flow ◽  
Single Phase ◽  
Reactive Power ◽  
Voltage Source ◽  
Direct Control ◽  
Utilization Factor ◽  
Pv Inverter ◽  
Active And Reactive Power ◽  
Wide Range

This paper presents a single-phase grid-connected photovoltaic system with direct control of active and reactive power through a power management system of a Photovoltaic inverter. The proposed control algorithm is designed to allow maximum utilization of the inverter’s available KVA capacity while maintaining grid power factor and current total harmonic distortion (THD) requirements within the grid standards. To reduce the complexity and improve the efficiency of the system, two independent PI controllers are implemented to control single-phase unipolar PWM voltage source inverter. One controller is used to control the power angle, and hence the active power flow, while the other controller is used to control the reactive power, and consequently the power factor by adjusting the voltage modulation index of the inverter. The proposed system is modelled and simulated using MATLAB/Simulink. The PV inverter has been examined while being simultaneously connected to grid and local load. Results obtained showed the ability of the PV inverter to manage the active and reactive power flow at, and below rated levels of solar irradiances; resulting in an increased inverter utilization factor, and enhanced power quality. The proposed system, was capable of operating at power factors in the range of 0.9 lead or lag for reactive power compensation purposes and delivered its power at a wide range of solar irradiance variations.

scholarly journals Deadbeat Control of a Modified Single-Phase Five-Level Photovoltaic Inverter with Reduced Number of Switches

2020 ◽  
Vol 2020 ◽  
pp. 1-16
Author(s):  
Mohsen Ghorbanali Afjeh ◽  
Mojtaba Babaei ◽  
Mohsen Alizadeh Bidgoli ◽  
Amir Ahmarinejad
Keyword(s):  
Single Phase ◽  
Pulse Width Modulation ◽  
Control Method ◽  
Digital Signal ◽  
Voltage Source ◽  
Switching Frequency ◽  
Semiconductor Switches ◽  
Optimal Output ◽  
Pv Inverter ◽  
Blocking Voltage

In this article, a modified single-phase five-level photovoltaic inverter is proposed with a single DC voltage source and six semiconductor switches. Compared with the presented inverters, the introduced topology has the advantage of decreased device count and the first switching frequency for high blocking voltage switches. The proposed PV inverter is implemented without clamping diodes and transformers, which leads to a decrement in size and, consequently, the weight of the converter. In addition, for the proposed topology, space vector pulse width modulation (SVPWM) is deployed that reduces the complexity of multilevel modulation. In order to obtain the optimal output voltage of the inverter, the deadbeat controller is suggested as a rapid dynamic, low-computation digital control method. This closed-loop inverter is implemented in TMS320f28335 digital signal controller to evaluate the performance of the proposed inverter under nonlinear and linear loads. Simulation and laboratory prototype results show that IEC 62040-3 harmonic constraints is met for the proposed photovoltaic inverter in standalone applications.

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