Overview of Control and Grid Synchronization for Distributed Power Generation Systems

Blaabjerg, Frede; Teodorescu, Remus; Liserre, Marco; Timbus, A.V.

doi:10.1109/tie.2006.881997

Cited by 4,308 publications

(1,955 citation statements)

References 58 publications

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“…In order to satisfy the requirements/demands, the generic control structure comprises of two cascaded loops [100,101]. The inner control loop is accountable for shaping the current while outer voltage/power control loop produces the current command.…”

Section: Generic Control Structurementioning

confidence: 99%

“…In this way, the quality of power is sustained along with various other functionalities as depicted in Figure 23 The two-main classifications of the control are: maximize the power from PV panels, the PV-side control is incorporated; (b) for the purpose of fulfilling the demands to the power grid, the grid-side control is performed. In order to satisfy the requirements/demands, the generic control structure comprises of two cascaded loops [100,101]. The inner control loop is accountable for shaping the current while outer voltage/power control loop produces the current command.…”

Section: Generic Control Structurementioning

confidence: 99%

“…Figure 23. Generic control structure for Single phase grid-connected system [29,101]. The distributed system connected to the grid is of main importance, the disturbances when no suitable controllers are designed and grid instability are the problems associated with grid-connected distributed system.…”

Section: Generic Control Structurementioning

confidence: 99%

“…The inner current control loop is (approximately) 5 to 20 times faster than the outer voltage control loop at achieving stability of the system. As the grid current and DC link voltage are separately controlled, hence the transfer function of the inner loop is not required in the design procedure of outer loop controllers, i.e., a DC link voltage controller [101,102]. However, some researchers have also proposed a cascaded voltage control loop and power control loop.…”

Section: Single Phase and Three Phase Control Structurementioning

confidence: 99%

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A Review on Recent Advances and Future Trends of Transformerless Inverter Structures for Single-Phase Grid-Connected Photovoltaic Systems

et al. 2018

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Abstract:The research significance of various scientific aspects of photovoltaic (PV) systems has increased over the past decade. Grid-tied inverters the vital elements for the effective interface of Renewable Energy Resources (RER) and utility in the distributed generation system. Currently, Single-Phase Transformerless Grid-Connected Photovoltaic (SPTG-CPV) inverters (1-10 kW) are undergoing further developments, with new designs, and interest of the solar market. In comparison to the transformer (TR) Galvanic Isolation (GI)-based inverters, its advantageous features are lower cost, lighter weight, smaller volume, higher efficiency, and less complexity. In this paper, a review of SPTG-CPV inverters has been carried out. The basic operational principles of all SPTG-CPV inverters are presented in details for positive, negative, and zero cycles. A comprehensive analysis of each topology has been deliberated. A comparative assessment is also performed based on weaknesses, strengths, component ratings, efficiency, total harmonic distortion (THD), semiconductor device losses, and leakage current of various SPTG-CPV inverters schemes. Typical PV inverter structures and control schemes for grid connected three-phase system and single-phase systems are also discussed, described, and reviewed. Comparison of various industrial grids-connected PV inverters is also performed. Loss analysis is also performed for various topologies at 1 kW. Selection of appropriate topologies for their particular application is thoroughly presented. Then, discussion and forthcoming progress are emphasized. Lastly, the conclusions are presented. More than 100 research publications on the topic of SPTG-CPV inverter topologies, configurations, and control schematics along with the recent developments are thoroughly reviewed and classified for quick reference.

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Section: Generic Control Structurementioning

confidence: 99%

Section: Generic Control Structurementioning

confidence: 99%

Section: Generic Control Structurementioning

confidence: 99%

Section: Single Phase and Three Phase Control Structurementioning

confidence: 99%

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A Review on Recent Advances and Future Trends of Transformerless Inverter Structures for Single-Phase Grid-Connected Photovoltaic Systems

et al. 2018

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“…Oângulo da corrente de entrada θ c pode ser obtido através de um PLL (Blaabjerg et al, 2006) ou através da detecção de cruzamento por zero da tensão de fase de entrada. Desta forma, o vetor corrente de entrada será sincronizado com a tensão de fase da entrada.…”

Section: O Método De Controle De Cor-rente De Carga Propostounclassified

Um controlador de corrente de carga para o conversor em matriz trifásico para trifásico e para o inversor de frequência sem capacitor do elo de corrente contínua

Filho

Gazoli

et al. 2010

Sba Controle & Automação

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A Controller for the Three-Phase to Three-Phase Matrix Converter and for the Voltage Source ThreePhase Inverter Without DC-Link CapacitorVoltage source three-phase inverter plays an important role in modern industry. The conventional voltage source inverter has a large electrolytic capacitor as energy store element in order to keep the DC-link voltage constant. However, a large electrolytic capacitor increases the input current distortion. Replacing the large electrolytic capacitor by a small film capacitor, the input current quality is improved but the DC-link voltage and the output currents are distorted by low order harmonic components.The three phase to three phase matrix converter performs electric energy direct transfer from the input to the output with sinusoidal input current although the distortion and the unbalance of the input voltages affects directly the output of the matrix converter. This paper proposes a load current control method to the matrix converter and also to the voltage source inverter in absence of the dc-link capacitor in order to compensate the distortion caused by low order harmonics components in the output currents. The proposed load current control scheme employs just one PI controller and since that the space vector modulation is used in this control, the switching frequency of the converter is kept constant. Theorical foundation, simulations results and experimental results are presented.

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Converters for Distributed Power Generation Systems

Blaabjerg

Yang

2015

Wiley Encyclopedia of Electrical and Electronics Engineering

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Power electronics technology has become the enabling technology for the integration of distributed power generation systems (DPGS) such as offshore wind turbine power systems and commercial photovoltaic power plants. Depending on the applications, a vast array of DPGS‐based power converter topologies has been developed and more are coming into the market in order to achieve an efficient and reliable power conversion from the renewables. In addition, stringent demands from both the distribution system operators and the consumers have been imposed on the renewable‐based DPGS. This article presents an overview of the power converters for the DPGS, mainly based on wind turbine systems and photovoltaic systems, covering a wide range of applications. Moreover, the modulation schemes and interfacing power filters for the power converters are also exemplified. Finally, the general control strategies for those systems are discussed in order to fulfill the increasingly strict requirements.

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Overview of Control and Grid Synchronization for Distributed Power Generation Systems

Cited by 4,308 publications

References 58 publications

A Review on Recent Advances and Future Trends of Transformerless Inverter Structures for Single-Phase Grid-Connected Photovoltaic Systems

A Review on Recent Advances and Future Trends of Transformerless Inverter Structures for Single-Phase Grid-Connected Photovoltaic Systems

Um controlador de corrente de carga para o conversor em matriz trifásico para trifásico e para o inversor de frequência sem capacitor do elo de corrente contínua

Converters for Distributed Power Generation Systems

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