Power quality enhancement and engineering application with high permeability distributed photovoltaic access to low-voltage distribution networks in Australia

Li, Ruisheng; Wong, Peter K.C.; Wang, Kun; Li, Bin; Yuan, Fangfang

doi:10.1186/s41601-020-00163-x

Cited by 52 publications

(21 citation statements)

References 8 publications

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“…A 250 kW PV system under this study is mainly composed of a power transformation system and a control system (Aouchiche, 2020). The former system includes seven components, i.e., PV array, boost converter, three-phase inverter, filter, transformer, grid, and load while the latter one is divided into maximum power point tracking (MPPT) control and inverter control (Li et al, 2020), shown in Figure 1. In addition, the perturbation observation (P and O) method is used to implement MPPT control while voltage regulator, current regulator as well as PLL controller accomplish precise and fast three-phase inverter control through coordinate and efficient cooperation.…”

Section: Grid-connected Pv Systemmentioning

confidence: 99%

Optimal PID Tuning of PLL for PV Inverter Based on Aquila Optimizer

et al. 2022

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Phase-locked loop (PLL) is a fundamental and crucial component of a photovoltaic (PV) connected inverter, which plays a significant role in high-quality grid connection by fast and precise phase detection and lock. Several novel critical structure improvements and proportional-integral (PI) parameter optimization techniques of PLL were proposed to reduce shock current and promote the quality of grid connection at present. However, the present techniques ignored the differential element of PLL and did not acquire ideal results. Thus, this paper adopts Aquila optimizer algorithm to regulate the proportional-integral-differential (PID) parameters of PLL for smoothing power fluctuation and improving grid connection quality. Three regulation strategies (i.e., PLL regulation, global regulation, and step regulation) are carefully designed to systematically and comprehensively evaluate the performance of the proposed method based on a simulation model in MATLAB/Simulink, namely, “250-kW Grid-Connected PV Array”. Simulation results indicate that PLL regulation strategy can effectively decrease power fluctuation and overshoot with a short response time, low complexity, and time cost. Particularly, the Error(P) and the maximum deviation of output power under optimal parameters obtained by PLL strategy are decreased by 418 W and 12.5 kW compared with those under initial parameters, respectively.

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Section: Grid-connected Pv Systemmentioning

confidence: 99%

Optimal PID Tuning of PLL for PV Inverter Based on Aquila Optimizer

et al. 2022

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“…The simulation of three-phase bolted three-phase shortcircuits currents per IEC 60909 Standard. This study calculates initial symmetrical RMS, peak, symmetrical and asymmetrical breaking RMS, steady-state RMS short circuit currents and their DC offset at faulted nozzles as the basic system reference quantities approved in our previous article with a maximum value recorded in a three-phase bolted fault and defined as a model to be used and compared with the values obtained by the factory manufacturer with Different Load and Contingency Scenarios [19], all the important busses and those to be protected by main circuit breakers have been chosen as it allows the maximum current during the fault to be determined to determine the breaking and closing powers of the devices as well as the electromechanical and thermal behavior of the equipment of the devices and to calculate the settings of the protection relays and the fuse ratings, to ensure good selectivity [20][21][22].…”

Section: Simulation Of Short Circuit Analysismentioning

confidence: 99%

Power System Analysis of Seawater Desalination Plant in Algeria with Different Load Scenarios

Zeggai¹,

Benhamida²,

Bouddou³

2021

JESA

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The cost of electricity for the reverse osmosis desalination process is up to 50% of the cost per cubic meter of water produce. Currently, the reduction of energy consumption is the main objective of the research on reverse osmosis plants. This document presents a power system analysis of the seawater desalination plant in Algeria with different load scenarios with a power of 50 MW made available by the electricity company Sonelgaz and a distribution level of 220/11/0.69/0.4 kV and a 2 MW diesel generator at the 0.4 kV level. The objective of this study is to analyze and dimension a general distribution network of an industrial customer through the power flow with different load and contingency scenarios (full load, full load N-1, low load, emergency system) to know and control its optimal and flexible operation. In a second step, the dimensioning of different protective devices is planned through a short circuit analysis of this network in order to evaluate the performance of the system. The ETAP program is used to carry out our simulation of this industrial plant and the effectiveness of the results is proven by comparisons with real measurements for the power flow analysis on the one hand and on the other hand with the results obtained by the builder for the short circuit analysis.

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“…In recent years, for the purpose of reducing dependence on fossil fuels, the electric power structure needs to shift more toward renewables to facilitate energy transformation (Zhang et al, 2015;Hou et al, 2017;Meng et al, 2021). Consequently, renewables (Chen et al, 2018;Li et al, 2020;Pabitra and Abhik, 2020;Zhao et al, 2021a) (e.g., solar, wind, hydro energy, etc.) have been wildly developed around the world, upon which the wind energy is increasingly emerging as one of the most mature, promising, and representative renewables, thanks to its unique superior, i.e., clean, reproducible, stable, well-stocked (Liu et al, 2021), and widespread (Díaz and Guedes Soares, 2020).…”

Section: Introductionmentioning

confidence: 99%

Optimal Adaptive Inertial Droop Control–Based Power System Frequency Regulation via Wind Farms

et al. 2022

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Wind farm–based frequency regulation of the power system has progressively attracted more attention owing to its higher power generation capacity. Among which the step start-up and adaptive inertial droop control of wind turbines with a maximum power point efficiently regulate the system frequency via fully utilizing the rotational kinetic energy. Besides, the coefficients of adaptive droop control and virtual inertial control will facilitate a significant influence on the frequency support performance and operation status of wind turbines for the power grid. To obtain optimal control parameters, a parameter optimization framework of a step start-up adaptive inertial and droop controller combined with the CGO algorithm is proposed, whose effectiveness is verified by a three-area four-terminal VSC-MT-HVDC–based WFs and AC system in MATLAB/Simulink. As a result, a set of parameters with a satisfactory and comprehensive dynamic control performance can be acquired by the proposed method under both 200 MW and 300 WM load increases compared with the trial-and-error approach.

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Power quality enhancement and engineering application with high permeability distributed photovoltaic access to low-voltage distribution networks in Australia

Cited by 52 publications

References 8 publications

Optimal PID Tuning of PLL for PV Inverter Based on Aquila Optimizer

Optimal PID Tuning of PLL for PV Inverter Based on Aquila Optimizer

Power System Analysis of Seawater Desalination Plant in Algeria with Different Load Scenarios

Optimal Adaptive Inertial Droop Control–Based Power System Frequency Regulation via Wind Farms

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