Grid Interconnection of Renewable Energy Sources at the Distribution Level With Power-Quality Improvement Features

Singh, Mukhtiar; Khadkikar, Vinod; Chandra, Ambrish; Varma, Rajiv K.

doi:10.1109/tpwrd.2010.2081384

Cited by 426 publications

(154 citation statements)

References 13 publications

(11 reference statements)

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“…According to the matrix converter the expectations of the output voltage, it can calculate the corresponding rotating the voltage space vector, which is based on the current to the output of a maximum of line voltage to fit the expect voltage space vector. The theory and simulation analysis show that this control can effectively reduce the distortion of output voltage and input current waveform [5].…”

Section: Introductionmentioning

confidence: 93%

A New Space Vector Modulation Strategy Based on MC

Li¹,

Guo²

2018

dteees

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This paper presents a control method based on space vector modulation matrix converter (SVMMC). The method calculate the corresponding rotating voltage space vector according to the expectations of output voltage, and use the strategy which the paper presents to adapt the expectation of the output voltage space vector. Through theoretical derivation, the method of the algorithm is given. Using the control method proposed in this paper will greatly simplify the modulation strategy, the output voltage of matrix converter well follow the expectations of a given voltage, and can effectively inhibit the matrix converter output voltage and input current waveform distortion. The simulation results verify the correctness of the theoretical analysis.

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Section: Introductionmentioning

confidence: 93%

A New Space Vector Modulation Strategy Based on MC

Li¹,

Guo²

2018

dteees

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“…RES are represented as current sources connected to the dc-link of a grid-interfacing inverter. The current injected by renewable into dc-link at voltage level Vdc can be given as (1) Where P RES is the power generated from RES. The current flow on the other side of dc-link can be represented as, (2) Where, P INV -total power available at grid-interfacing inverter side, P G -active power supplied to the grid and inverter losses, and P LOSS -inverter losses.…”

Section: Voltage and Power Control Operationmentioning

confidence: 99%

Pv Based Grid Interconnection at Distribution Level With Power Quality Improvement Features

2017

IJAERD

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Abstract---Renewable energy resources (RES) are being increasingly connected in distribution systems utilizing power electronic converters. This paper presents a control strategy for achieving maximum benefits from these grid-interfacing inverters when installed in 3- Keywords---Active Power Filter (APF), Distributed Generation (DG), Distribution System, Grid Interconnection, Power Quality (PQ), Photo voltaic cell. I.INTRODUCTIONRenewable sources of energy acquire growing importance due to its enormous consumption and exhaustion of fossil fuel. Also, solar energy is the most readily available source of energy and it is free. Moreover, solar energy is the best among all the renewable energy sources since, it is non-polluting. Photo voltaic arrays are used in many applications such as water pumping, street lighting in rural town, battery charging and grid connected PV systems. Seventy five percent of total global energy demand is supplied by the burning of fossil fuels. But increasing air pollution, global warming concerns, diminishing fossil fuels and their increasing cost have made it necessary to look towards renewable sources as a future energy solution. Since the past decade, there has been an enormous interest in many countries on renewable energy for power generation. The market liberalization and government's incentives have further accelerated the renewable energy sector growth. Renewable energy source (RES) integrated at distribution level is termed as distributed generation (DG). The utility is concerned due to the high penetration level of intermittent RES in distribution systems as it may pose a threat to network in terms of stability, voltage regulation and power-quality (PQ) issues [2]. Therefore, the DG systems are required to comply with strict technical and regulatory frameworks to ensure safe, reliable and efficient operation of overall network. With the advancement in power electronics and digital control technology, the DG systems can now be actively controlled to enhance the system operation with improved PQ at PCC.Recently, a few control strategies for grid connected inverters incorporating PQ solution have been proposed. In an inverter operates as active inductor at a certain frequency to absorb the harmonic current. But the exact calculation of network inductance in real-time is difficult and may deteriorate the control performance. A similar approach in which a shunt active filter acts as active conductance to damp out the harmonics in distribution network is proposed in [5]. In [6], a control strategy for renewable interfacing inverter based on-theory is proposed. In this strategy both load and inverter current sensing is required to compensate the load current harmonics. The non-linear load current harmonics may result in voltage harmonics and can create a serious PQ problem in the power system network.

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“…To achieve more benefits from grid-interfacing inverters using 3-phase 4-wire distribution systems are explained by the Singh et al [14]. Here authors have demonstrated and simulated using Matlab / Simulink and it is validated through DSP processor based results.…”

Section: Related Workmentioning

confidence: 99%

A Presage Mathematical Framework to Leverage Power Quality in Power Electronics

Shamala¹,

Lakshminarayana²

2015

CAE

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With the increasing attention towards conserving power, the existing trends towards distributive power generation system are much focused on investigating on renewable resources. One of the prime advantages of adoption of renewable resources is minimized cost of operation owing to reduced maintains as compared to the conventional power generators. Hence, the area of power electronics is also found to be inclined towards adoption of various forms of renewable resources. However, with the existing of non-linearity of the existing loads owing to the usage of modern electronic devices that runs of renewable resources, it generates potential amounts of harmonics, which should be control by using power filters. Hence, this paper introduces a technique for predictive control scheme using 4 leg voltage inverter for the addressing the problem of harmonic suppression. The core contribution of the paper is to presents a mathematical model and evaluates the presented scheme under various control state as well as operating situation.

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Grid Interconnection of Renewable Energy Sources at the Distribution Level With Power-Quality Improvement Features

Cited by 426 publications

References 13 publications

A New Space Vector Modulation Strategy Based on MC

A New Space Vector Modulation Strategy Based on MC

Pv Based Grid Interconnection at Distribution Level With Power Quality Improvement Features

A Presage Mathematical Framework to Leverage Power Quality in Power Electronics

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