Power quality enhancement in solar power with grid connected system using UPQC

Poongothai, S.; Srinath, S.

doi:10.1016/j.micpro.2020.103300

Cited by 24 publications

(12 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The structure of UPQC [9][10][11] is mainly composed of three parts: series unit, parallel unit and DC side energy storage unit. The topology structure of the improved UPQC added to the microgrid is shown in Figure 5.…”

Section: 1upqc Topologymentioning

confidence: 99%

A new type of microgrid power quality improvement strategy based on harmonic suppression

Wang

Liu

2022

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

Current harmonics and distorted voltage are two important factors that affect the power quality of microgrids. Combining with the operating characteristics of microgrids, this article uses a new strategy to control grid-connected inverters and UPQC to improve grid quality. Pointed out its advantages relative to traditional active filters, and in view of the current harmonic detection problems, In this paper, the inverter adopts an improved ip-iq harmonic detection method to improve the accuracy of harmonic current detection and has strong interference. The UPQC structure uses SVPWM and PWM control methods as its new control strategies on the series side and parallel side to compensate for distortion voltage and harmonic current. A detailed model is built in MATLAB/Simulink to verify the feasibility of this method.

show abstract

Section: 1upqc Topologymentioning

confidence: 99%

A new type of microgrid power quality improvement strategy based on harmonic suppression

Wang

Liu

2022

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

show abstract

“…8. This controller creates reference source currents i * sa , i * sb , and i * sc for HCC [18]. The HCC constructs switching signals for the VSC-based DSTATCOM.…”

Section: A Uvt Controllermentioning

confidence: 99%

“…Developing a system that continuously monitors power quality and synchronizes the signal with a solar PV system is a major challenge. Several controllers have been employed to improve the characteristics of DSTATCOM, including synchronous reference frame (SRF) theory [8], instantaneous reactive power theory (IRPT) [8], sliding mode controllers [8], power balancing theory (PBT) [8], and second-order generalized integrator (SOGI)-based theory [17], [18]. Low-pass filters (LPFs) and phase-locked loops (PLLs) are major parts of SRF IRPT, unit vector template (UVT) controllers and other traditional controllers.…”

Section: Introductionmentioning

confidence: 99%

Power Quality Improvement for Grid-connected PV System Based on Distribution Static Compensator with Fuzzy Logic Controller and UVT/ADALINE-based Least Mean Square Controller

Kumar

2021

Journal of Modern Power Systems and Clean Energy

View full text Add to dashboard Cite

This paper presents a novel method of power quality enrichment in a grid-connected photovoltaic (PV) system using a distribution static compensator (DSTATCOM). The paper consists of two-step control processes. In the primary step, a fuzzy logic controller (FLC) is employed in the DC-DC converter to extract the peak power point from the PV panel, where the FLC produces a switching signal for the DC-DC converter. In the secondary step, a unit vector template (UVT)/adaptive linear neuron (ADALINE)-based least mean square (LMS) controller is adopted in the DC-AC converter, i. e., voltage source converter (VSC). The input to this VSC is the boosted DC voltage, which originates from the PV panel as a result of DC-DC conversion. The VSC shunted with the power grid is known as a DSTATCOM, which can maintain the power quality in the distribution system. The UVT controller generates reference source currents from the grid voltages and DC-link voltages. The ADALINE-based LMS controller calculates the online weight according to the previous weights by the sensed load current. The UVT/ADALINE-based LMS controller of a DSTAT-COM performs several tasks such as maintaining the sinusoidal source current, achieving a unity power factor, and performing reactive power compensation. The reference current extracted from the UVT/ADALINE-based LMS controller is fed to the hysteresis current controller to obtain the desired switching signal for the VSC. A 100 kW solar PV system integrated into a three-phase four-wire distribution system through a four-leg VSC is designed in MATLAB/Simulink. The performances of the FLC and UVT/ADALINE-based LMS controllers are demonstrated under various irradiances as well as constant temperature and nonlinear loading conditions.

show abstract

“…Further, an inductive hybrid UPQC for Power quality management in premiumpower-supply required applications has been accomplished by Yu et al [13], the DC bus voltage as well as the active and reactive powers fluctuations has been demonstrated the inferiority of the proposed control of this paper. A Power quality enhancement in solar power with grid connected system using UPQC has been established [14]. Otherwise, the system does not prove the performances of the controller under nonlinear variations in addition to the high value of the THD that reached 4.66%.…”

Section: Introductionmentioning

confidence: 99%

“…Figure 2. Boost converter of the PV generatorThe state space model for this converter is represented by the dynamic equations below[14]:…”

mentioning

confidence: 99%

PIL Implementation of Feedback Linearisation-SVM Control of 3-Phase Multifunctional Grid-Tied Solar PV Integrated UPQC

Dahdouh¹,

Mazouz²,

Youcefa³

2022

JESA

View full text Add to dashboard Cite

In this paper, an implementation of a feedback linearisation-based on SVM control of a multifunctional unified power quality conditioner (UPQC) combined with a photovoltaic generator (PVG) using STM32F429I-DISC DSP board has been presented. Further, The PVG-UPQC is acting as a universal conditioner for power quality enhancement and renewable energy integration simultaneously with harmonics reduction in both grid voltage and current. Furthermore, the system can also compensate reactive power in presence of nonlinear loads. The presented system is made up of a shunt active power filter which acts as a current harmonics compensator in addition to a series filter that compensates voltage harmonics and fluctuations such as voltage sag/swell. In order to enhancing the PVG-UPQC performances, a nonlinear feedback linearisation control technique combined with SVM controller is applied. The performance of the suggested control scheme is validated by extensive PIL co-simulation technique. The obtained results prove the high performances and reliability of the presented system in the case of nonlinear load variations as well as eliminating voltage and current harmonics. These results accomplish the superiority and effectiveness of those obtained by a compared to a conventional PI controller.

show abstract

Power quality enhancement in solar power with grid connected system using UPQC

Cited by 24 publications

References 18 publications

A new type of microgrid power quality improvement strategy based on harmonic suppression

A new type of microgrid power quality improvement strategy based on harmonic suppression

Power Quality Improvement for Grid-connected PV System Based on Distribution Static Compensator with Fuzzy Logic Controller and UVT/ADALINE-based Least Mean Square Controller

PIL Implementation of Feedback Linearisation-SVM Control of 3-Phase Multifunctional Grid-Tied Solar PV Integrated UPQC

Contact Info

Product

Resources

About