A survey on control of electric power distributed generation systems for microgrid applications

Bouzid, Allal M.; Guerrero, Josep M.; Chériti, A.; Bouhamida, Mohamed; Sicard, Pierre; Benghanem, M.

doi:10.1016/j.rser.2015.01.016

Cited by 337 publications

(180 citation statements)

References 124 publications

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“…Currently, industrial countries generate most of their electricity in large centralized facilities, such as fossil fuel (coal, gas powered) nuclear or hydropower plants [8]. These plants have excellent economies of scale, but usually transmit electricity long distances and negatively affect the environment.…”

Section: Distributed Generationmentioning

confidence: 99%

Operation and Control of Converter Based Single Phase Distributed Generators in a Utility Connected Grid

Shalini¹

2017

ijecs

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The operation and control of converter based single phase distributed generators (DG) in a utility connected grid is proposed in this paper. A common utility practice is to distribute the household single-phase loads evenly between the three phases. The voltage unbalance between the phases remains within a reasonable limit. The single phase sources are operated to deliver available maximum power generated while the rest of the power demands in each of the phases are supplied by the utility (and if available, three phase DG sources). However, the voltage unbalance can be severe if single-phase rooftop mounted PVs are distributed randomly among the households. Moreover, there can also be single-phase nonlinear loads present in the system. The cumulative effect of all these will cause power quality problem on the utility side. The problem can be macabre if three-phase active loads (e.g., induction motors) are connected to the utility feeder.

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Section: Distributed Generationmentioning

confidence: 99%

Operation and Control of Converter Based Single Phase Distributed Generators in a Utility Connected Grid

Shalini¹

2017

ijecs

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“…Traditionally, a linear controller such as the proportional-integral (PI) control on the synchronous reference frame has been employed to control grid-connected inverters (GCI) due to its simplicity and stability [8]. This method takes the advantage of using a pulse width modulator (PWM) to keep the switching frequency at a constant value during operation, which reduces unwanted harmonic distortion caused by varying switching frequency.…”

Section: Introductionmentioning

confidence: 99%

Finite Control Set–Model Predictive Control with Modulation to Mitigate Harmonic Component in Output Current for a Grid-Connected Inverter under Distorted Grid Conditions

Nguyen

Kim

2017

Energies

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This paper presents an improved current control strategy for a three-phase grid-connected inverter under distorted grid conditions. In terms of performance, it is important for a grid-connected inverter to maintain the harmonic contents of inverter output currents below the specified limit even when the grid is subject to harmonic distortion. To address this problem, this paper proposes a modulated finite control set-model predictive control (FCS-MPC) scheme, which effectively mitigates the harmonic components in output current of a grid-connected inverter. In the proposed scheme, the system behavior in the future is predicted from the system model in the discrete-time domain. Then, the cost function is selected based on the control objective of system. This cost function is minimized during the optimization process to determine the control signals that minimize the cost function. In addition, since the proposed scheme requires pure sinusoidal reference currents in the stationary frame to work successfully, the moving average filter (MAF) is employed to enhance the performance of the traditional phase lock loop (PLL). Due to the control performance of the FCS-MPC scheme as well as the harmonic disturbance rejection capability of the MAF-PLL, the proposed scheme is able to suppress the harmonic distortion even in the presence of distorted grid condition, while retaining fast transient response. Comparative simulation results of different controllers verify the effectiveness of the proposed control scheme in compensating the harmonic disturbance. To validate the practical feasibility of the proposed scheme, the whole control algorithm is implemented on a 32-bit floating-point digital signal processor (DSP) TMS320F28335 to control a 2 kW three-phase grid-connected inverter. As a result, the proposed scheme is a promising approach toward improving the current quality of a grid-connected inverter under distorted grid conditions.

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“…Several systems are proposed in the literature to support voltage/reactive power control [1][2][3]. In this paper, it is applied a maintenance program with implementation of the Total Productive Maintenance (TPM) to analyze some applications in the mode of operation of the AVR (automatic voltage regulator) to operate the system in the control of constant voltage (Voltage Droop).…”

Section: Introductionmentioning

confidence: 99%

Maintenance Tools applied to Electric Generators to Improve Energy Efficiency and Power Quality of Thermoelectric Power Plants

Fonseca¹,

Bezerra

Leite³

et al. 2017

Energies

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This paper presents a specific method to improve the reliability of the equipment and the quality of power supplied to the electrical systems with the frequency and voltage control of a thermoelectric plant, to guarantee a more stable system. The method has the novelty of combining Total Productive Maintenance (TPM) using only four pillars, with Electrical Predictive Maintenance based in failure analysis and diagnostic. It prevents voltage drops caused by excessive reactive consumption, thus guaranteeing the company a perfect functioning of its equipment and providing a longer life of them. The Maintenance Management Program (MMP) seeks to prevent failures from causing the equipment to be shut down from the electrical system, which means large financial losses, either by reducing billing or by paying fines to the regulatory agency, in addition to prejudice the reliability of the system. Using management tools, but applying only four TPM pillars, it was possible to achieve innovation in power plants with internal combustion engines. This study aims to provide maintenance with a more reliable process, through the implantation of measurement, control and diagnostic devices, thus allowing the management to reduce breakdown of plant equipment. Some results have been achieved after the implementation, such as reduction of annual maintenance cost, reduction of corrective maintenance, increase of MTBF (Mean Time between Failures) and reduction of MTTR (Mean Time to Repair) in all areas. Probabilistic models able to describe real processes in a more realistic way, and facilitate the optimization at maximum reliability or minimum costs are presented. Such results are reflected in more reliable and continual power generation.

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A survey on control of electric power distributed generation systems for microgrid applications

Cited by 337 publications

References 124 publications

Operation and Control of Converter Based Single Phase Distributed Generators in a Utility Connected Grid

Operation and Control of Converter Based Single Phase Distributed Generators in a Utility Connected Grid

Finite Control Set–Model Predictive Control with Modulation to Mitigate Harmonic Component in Output Current for a Grid-Connected Inverter under Distorted Grid Conditions

Maintenance Tools applied to Electric Generators to Improve Energy Efficiency and Power Quality of Thermoelectric Power Plants

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