A New Direct Power Control Scheme Applied to a Grid Connected Fuzzy-MPPT-Controlled Photovoltaic System

2014 ◽  
Vol 7 (5) ◽  
pp. 845
Author(s):  
Noureddine Hidouri
Keyword(s):  
Power Control ◽  
Photovoltaic System ◽  
Direct Power ◽  
Direct Power Control ◽  
Control Scheme

A Study on Modified Model Predictive DPC of Rectifiers

2013 ◽  
Vol 441 ◽  
pp. 328-331
Author(s):  
Hui Zhao ◽  
Biao Wang ◽  
Hong Jun Wang ◽  
You Jun Yue
Keyword(s):  
Power Control ◽  
Reactive Power ◽  
Operating Time ◽  
Sampling Period ◽  
Switching Frequency ◽  
Direct Power ◽  
Direct Power Control ◽  
Voltage Vector ◽  
Control Scheme ◽  
Result Show

In this paper, we study a modified predictive direct power control scheme (P-DPC).This scheme which based on model predictive control (MPC) uses a discrete rectifier model to infer the predictive direct power control theme again, and selects the operating time of voltage vector and voltage vector to realize fixed switching frequency through setting the minimum power errors of each sampling period. This control scheme has a lower switching frequency compared to MP-DPC; and it is still simple and clear implemented in the stationary reference frame directly, meanwhile, it does not need PI controllers or voltage-oriented controllers compared to other developed control schemes. We make simulations using MATLAB. The result show the excellence of this novel predictive direct power control scheme through improving the switching frequency, current THD and active power and reactive power quality compared to MP-DPC and LUT-DPC.

Direct Power Control of a Three-phase AC-DC Converter for Grid-connected Solar Photovoltaic System

2021 ◽  
Author(s):  
Harshita Tiwari ◽  
Arnab Ghosh ◽  
Pravat Kumar Ray ◽  
Bidyadhar Subudhi ◽  
Ghanim Putrus ◽  
...  
Keyword(s):  
Power Control ◽  
Photovoltaic System ◽  
Solar Photovoltaic ◽  
Direct Power ◽  
Direct Power Control ◽  
Three Phase ◽  
Solar Photovoltaic System

Flexible Power Regulation of Grid-Connected Inverters for PV Systems Using Model Predictive Direct Power Control

2016 ◽  
Vol 4 (3) ◽  
pp. 508 ◽  
Author(s):  
R S Ravi Sankar ◽  
S.V. Jayaram Kumar ◽  
K. K. Deepika
Keyword(s):  
Power Control ◽  
Sampling Period ◽  
Photovoltaic System ◽  
Direct Power ◽  
Direct Power Control ◽  
Pv Systems ◽  
Voltage Vector ◽  
Power Regulation ◽  
Grid Connected Inverter ◽  
Sampling Instant

<p>This paper presents a Model Predictive Direct Power Control (MPDPC) strategy for a grid-connected inverter used in a photovoltaic system, as found in many distributed generating installations. The controller uses a system model to predict the system behavior at each sampling instant. Using a cost function, the voltage vector with least power ripple is generated. The resultant voltage vector is applied during the next sampling period which gives flexible power regulation. The effectiveness of the proposed MPDPC strategy is verified using MATLAB/ SIMULINK. </p>

Power Quality Improvement for Grid-Connected Photovoltaic Panels Using Direct Power Control

2022 ◽  
pp. 107-142
Author(s):  
Arezki Fekik ◽  
Mohamed Lamine Hamida ◽  
Hamza Houassine ◽  
Ahmad Taher Azar ◽  
Nashwa Ahmad Kamal ◽  
...  
Keyword(s):  
Power Control ◽  
Power Quality ◽  
Maximum Power ◽  
Photovoltaic System ◽  
Direct Power ◽  
Direct Power Control ◽  
Power Quality Improvement ◽  
Two Phases ◽  
Bus Voltage ◽  
Power Point

This chapter displays a control strategy for a photovoltaic system (PV) linked to the network with two phases of a PWM converter, where the first phase is a DC-DC converter linked among the photovoltaic source and the DC-AC converter. The second phase is a DC-AC converter linked to the grid. The maximum power point (MPP) is tracked by DC-DC converter, which increases the DC bus voltage. The P&O (perturbation and observation) technique is utilized as a direct current (DC-DC) converter controller to make the PV arrays work at greatest value of power under changing weather conditions. The DC-AC converter transfers the maximum power extracted from the PV cell into the grid. To improve the energy quality produced by the photovoltaic field other than the performance of the pulse width modulation (PWM) inverter, direct power control (DPC) is used to achieve these improvements. The simulation results showed a good performance of the suggested controller. Decoupled power control is achieved successfully, and a good power quality with low harmonic distortion rate (THD) is obtained.

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