Comparative study of reactive power control methods for photovoltaic inverters in low-voltage grids

@article{Momeneh2016ComparativeSO,
  title={Comparative study of reactive power control methods for photovoltaic inverters in low-voltage grids},
  author={Arash Momeneh and Miguel Castilla and Jaume Miret and Pau Mart{\'i} and Manel Velasco},
  journal={Iet Renewable Power Generation},
  year={2016},
  volume={10},
  pages={310-318}
}
The increasing installation of photovoltaic panels in low-voltage grids causes an over voltage problem, especially during high production and low consumption periods. Generally the over voltage problem is overcome by implementing reactive power control methods. The advances in networked control systems theory and practice create new scenarios where reactive power control methods can offer additional features and benefits. To explore these new capabilities, this study presents two new reactive… Expand
Voltage Support Experimental Analysis of a Low-Voltage Ride-Through Strategy Applied to Grid-Connected Distributed Inverters
TLDR
The obtained experimental results demonstrate that, depending on the configuration of distributed generation, diverse inverters could have different control strategies, and shows that the present object of study is of great interest for future research. Expand
A Strategy for Utilization of Reactive Power Capability of PV Inverters
TLDR
A Q-V based control curve is formulated for the PV inverters and further to ensure its faster response, tuning parameters based on active power and bus voltage measurements are introduced. Expand
Methods and strategies for overvoltage prevention in low voltage distribution systems with PV
TLDR
A combination of overvoltage prevention methods and coordination between voltage control units can provide an efficient solution to increase the PV hosting capacity of LV grids. Expand
Control of grid-connected three-phase three-wire voltage-sourced inverters under voltage disturbances
TLDR
A new algorithm to maximize power delivery capability of the inverter has been developed and experimentally tested under voltage imbalance conditions, and a closed-loop controller for low-power distributed inverters that maximizes the current injection when voltage sag occurs is proposed. Expand
Development of A Hybrid Method to Control the Grid-Connected PV Converter
TLDR
A hybrid scheme is suggested to control the grid-connected PV converters that can manage the power of solar arrays to supply the load, filter the harmonics and compensate the reactive power in a situation where the power produced by solar arrays is less than the powerof converters. Expand
Volt–var curves for photovoltaic inverters in distribution systems
Photovoltaics (PV) are a technology that is becoming increasingly prevalent in the residential sector. The impacts of this new type of generation are not always desirable from a distribution systemExpand
A Reactive Power Compensation Strategy in Radial Distribution Network with High PV Penetration
  • K. A. Khan, M. Khalid
  • Computer Science
  • 2019 8th International Conference on Renewable Energy Research and Applications (ICRERA)
  • 2019
TLDR
A PQ-V control curve is formulated for the PV inverters and corresponding tuning parameters are introduced for rapid voltage regulation using real-time measurements and the control strategy is evaluated on two scenarios of RDN based on different R/X ratios and nodes distances to validate its robustness. Expand
Reactive-active power control for grid-connected PV arrays to enlarge the hosting capacity in a low voltage distribution system
TLDR
A methodology that combines both RPC and APC approaches to limit the voltage rise in a low voltage distribution feeder is proposed and the obtained results show the superiority of the proposed methodology over the conventional approaches, which enlarges the hosting capacity for PV power penetration in aLow voltage distribution system. Expand
Reactive Power Control of DGs for Distribution Network Voltage Regulation Using Multi-Agent System
TLDR
The proposed control strategy utilizes voltage/reactive power sensitivity analysis to reduce the overall system voltage deviation and can significantly mitigate the voltage violation problems in a simple manner. Expand
Coordinated control of multifunctional inverters for voltage support and harmonic compensation in a grid-connected microgrid
TLDR
A coordinated harmonic compensation and voltage support scheme is presented for distributed generations’ interface inverters in a resistive grid-connected microgrid to mitigate the overvoltage problem when the reactive power compensation is not sufficient. Expand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 37 REFERENCES
Local Reactive Power Control Methods for Overvoltage Prevention of Distributed Solar Inverters in Low-Voltage Grids
TLDR
Underlines weak points of standard reactive power strategies which are already imposed by certain grid codes, and introduces a new reactive power control method that is based on sensitivity analysis that combines two droop functions that are inherited from the standard cos φ(P) and Q(U) strategies. Expand
Integration of large-size photovoltaic systems into the distribution grids: a p-q chart approach to assess reactive support capability
This study addresses the issue of the control of both active (P) and reactive (Q) power flows injected by grid connected photovoltaic (PV) units participating in the provision of the reactive powerExpand
Integration of D-Statcom based photovoltaic cell power in low voltage power distribution grid
The main aim of this paper is the voltage regulation which is one of the most important operational requirement in power network at both transmission and distribution levels. Whenever there is aExpand
Local Control of Reactive Power by Distributed Photovoltaic Generators
TLDR
A local control scheme that dispatches reactive power from each PV inverter based on local instantaneous measurements of the real and reactive components of the consumed power and the real power generated by the PVs is suggested. Expand
Design and Analysis of a Grid-Connected Photovoltaic Power System
A grid-connected photovoltaic (PV) power system with high voltage gain is proposed, and the steady-state model analysis and the control strategy of the system are presented in this paper. For aExpand
A Control Methodology and Characterization of Dynamics for a Photovoltaic (PV) System Interfaced With a Distribution Network
This paper proposes a control strategy for a single-stage, three-phase, photovoltaic (PV) system that is connected to a distribution network. The control is based on an inner current-control loop andExpand
Active voltage ripple compensation in PV Systems for domestic uses
  • A. Testa, S. de Caro
  • Engineering
  • 2010 IEEE International Symposium on Industrial Electronics
  • 2010
Photo Voltaic (PV) generators today find application in the domestic field, where the decentralized power conversion concept has proven to be more advantageous than the conventional stringExpand
Reactive power/voltage control in distribution systems under uncertain environment
A novel method for reactive power/voltage control in distribution systems under uncertain data environment is presented. This is achieved by minimising boundary real power loss or boundary total realExpand
Optimal Distribution Voltage Control and Coordination With Distributed Generation
In recent years, distributed generation, as clean natural energy generation and cogeneration system of high thermal efficiency, has increased due to the problems of global warming and exhaustion ofExpand
Minimum loss operation of distribution networks with photovoltaic generation
The proliferation of photovoltaic generation in distribution networks requires assessing the control schemes that achieve minimum loss operation without requiring excessive switching of conventionalExpand
...
1
2
3
4
...