Design of a command scheme for grid connected PV systems using classical controllers

Hamrouni, Nejib; Jraidi, Moncef; Dhouib, A.; Cherif, Adnane

doi:10.1016/j.epsr.2016.10.064

Cited by 46 publications

(27 citation statements)

References 15 publications

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“…Here the PWM inverter is employed and it generates the pulses in every switch. During the normal and abnormal conditions, the parameters of the power flow can be given by a stable level in the grid-connected solar PV system [12]- [13]. The positive (P), reactive (Q) power of the grid are often evaluated by using the parameters like voltage and current of the electrical grid.…”

Section: Grid-connected Solar Pv Conceptmentioning

confidence: 99%

Droop Control Based Grid-Connected Solar Photovoltaic Inverters for Distributed Generation

Edward¹,

Praiselin²

2019

IJEAT

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In day to day the demand of electrical energy has been increasing in worldwide, as well the share of solar photovoltaic power generation has increased extremely because of population growth, urbanization, etc. Although the power generated from solar photovoltaic is erratically, and it makes the stability and reliability problems in a utility grid. This paper projects a P/Q droop control strategy for a grid-tied PWM inverter. This paper introduces an entire model of grid-connected solar photovoltaic array; inverter with droop control, and loads are developed for this operation. The locus points of the both power sharing of the DG system is developed by the proposed control operation. PI controllers were used in this droop control was espoused to adjust the constraints of PI controller. The results of the proposed droop control inject positive and reactive power into a variation of loads and improving the quality of power as compared to the conventional PID controllers.

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Section: Grid-connected Solar Pv Conceptmentioning

confidence: 99%

Droop Control Based Grid-Connected Solar Photovoltaic Inverters for Distributed Generation

Edward¹,

Praiselin²

2019

IJEAT

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“…Proportional integral (PI) controllers have been widely adopted for controlling VSIs in grid-connected PV systems which usually minimize the tracking errors [12]. A distributed volt-var control scheme is presented in [13] where var injection and absorption capabilities of smart inverters with PV systems are investigated using PI controllers.…”

Section: Introductionmentioning

confidence: 99%

Partial Feedback Linearizing Model Predictive Controllers for Multiple Photovoltaic Units Connected to Grids through a Point of Common Coupling

Orchi

Mahmud

2018

Electronics

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In this paper, partial feedback linearizing model predictive controllers are designed for grid-connected systems comprising multiple photovoltaic (PV) units where these units are connected through a point of common coupling (PCC). The proposed controllers are designed for voltage source inverters (VSIs) based on comprehensive dynamical models of grid-connected PV systems with the proposed topology. The proposed partial feedback linearization scheme decouples multiple PV units in the forms of several reduced-order subsystems and enables linear controller design through the linear continuous-time receding horizon model predictive control scheme. The proposed partial feedback linearization scheme also considers dynamic interactions among multiple PV units as external noises or disturbances and decouples these noises. This paper includes the noise decoupling capability of the partial feedback linearization for grid-connected PV systems with multiple PV units which are connected through a PCC. Simulation results clearly demonstrate the effectiveness of the proposed scheme under different operating conditions as compared to an existing proportional integral controller.

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“…With regards to the power circuit modeling, some studies neglect the dc-side dynamics [6], [7], [9], [11], including the Western Electricity Coordinating Council's (WECC) model [9]; however, this simplification does not allow for representation of dc-link and irradiance-driven dynamic phenomena [12], [13]. As for the PV array, most of the relevant studies consider a simplified model [4], [8], [12]- [19], the full single-diode PV model being used only in [5], [20]- [22], involving numerical solution algorithms that pose calculation issues [5]. Recently, an explicit alternative was proposed based on the Lambert W function [23], albeit limited to irradiance-driven dynamics only.…”

mentioning

confidence: 99%

“…), a condition that decisively alters the dynamic response of the system; this paper shows that both CCM and DCM should be considered in models with ancillary services support. As for the grid-side filter, recent studies conclude that any type (L, L-C or L-C-L) can be sufficiently represented by an equivalent inductance L for the purpose of dynamic simulations [6], [17], [22].…”

mentioning

confidence: 99%

A State-Space Dynamic Model for Photovoltaic Systems With Full Ancillary Services Support

Batzelis

Anagnostou

Cole

et al. 2019

IEEE Trans. Sustain. Energy

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Large-scale photovoltaic (PV) integration to the network necessitates accurate modeling of PV system dynamics under solar irradiance changes and disturbances in the power system. Most of the available PV dynamic models in the literature are scope-specific, neglecting some control functions and employing simplifications. In this paper, a complete dynamic model for twostage PV systems is presented, given in entirely state-space form and explicit equations that takes into account all power circuit dynamics and modern control functions. This is a holistic approach that considers a full range of ancillary services required by modern grid codes, supports both balanced and unbalanced grid operation, and accounts for the discontinuous conduction mode of the dc/dc converter of the system. The proposed dynamic model is evaluated and compared to other approaches based on the literature, against scenarios of irradiance variation, voltage sags, and frequency distortion. Simulation results in MATLAB/Simulink indicate high accuracy at low computational cost and complexity.

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Design of a command scheme for grid connected PV systems using classical controllers

Cited by 46 publications

References 15 publications

Droop Control Based Grid-Connected Solar Photovoltaic Inverters for Distributed Generation

Droop Control Based Grid-Connected Solar Photovoltaic Inverters for Distributed Generation

Partial Feedback Linearizing Model Predictive Controllers for Multiple Photovoltaic Units Connected to Grids through a Point of Common Coupling

A State-Space Dynamic Model for Photovoltaic Systems With Full Ancillary Services Support

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