A Large-Power Voltage Source Converter for FACTS Applications Combining Three-Level Neutral-Point-Clamped Power Electronic Building Blocks

Chivite-Zabalza, Javier; Vidal, Miguel Ángel Rodríguez; Izurza-Moreno, Pedro; Calvo, G.; Madariaga, Danel

doi:10.1109/tie.2012.2218555

Cited by 37 publications

(14 citation statements)

References 28 publications

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“…Triplens harmonics are produced by pulse-width modulation (PWM) third harmonic injection to increase the dc-link utilization ratio. However, these components are strongly penalized in the majority of power quality grid codes and must be removed or mitigated [14]. Instead, if sinusoidal PWM (SPWM) is used, the control of zero-sequence can be performed simply with an additional PI controller.…”

Section: Inner Control Loop: Grid Current Controlmentioning

confidence: 99%

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Five-level H-bridge NPC central photovoltaic inverter with open-end winding grid connection

Rojas

Kouro

Edwards

et al. 2014

IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society

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This investigation presents a grid-connected ve-level H-bridge neutral-point-clamped converter operating with a single dc-link as photovoltaic power source. The operation with a single dc-bus is enabled by adding a transformer with open-end winding secondary, where each power cell of the converter is connected. The proposed control scheme is validated trough simulation results and tested under dynamic conditions. It can be implemented with a good tracking of the active and reactive power references injected to the grid. The results serve as a preliminary validation to potential utilization of the converter in large scale photovoltaic energy conversion systems.

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Section: Inner Control Loop: Grid Current Controlmentioning

confidence: 99%

“…In the case of SPWM, a conventional PI linear controller is enough. Nevertheless, if min-max sequence or third harmonic injection are used, the option must be changed to resonant controllers or selective harmonic elimination PWM (SHE-PWM) [14].…”

Section: A Steady-state Operationmentioning

confidence: 99%

Five-level H-bridge NPC central photovoltaic inverter with open-end winding grid connection

Rojas

Kouro

Edwards

et al. 2014

IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society

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“…The DC side capacitors of the converters have been simulated using ideal voltage sources and the average powers of these sources were monitored to ensure that they equated to zero. Figure 2 shows the configuration scheme of the first VSC topology that was presented in [13]. It consists of twelve 3L-NPC PEBBs with a single common DC bus, that is, all the PEBBs are sharing the same DC bus.…”

Section: High Power Converter Topologiesmentioning

confidence: 99%

“…The PEBBs can be connected in series to increase the output voltage or they can be parallelized to increase the output current. In order to increase the output voltage or current of the VSC, isolated DC buses [12], magnetic elements [13] or open-winding configurations [10,[14][15] can be used. The Modular Multilevel Cascaded Converters (MMCC) are based on PEBB inter-connection using isolated DC buses [16].…”

Section: Introductionmentioning

confidence: 99%

VSC topology comparison for STATCOM application under unbalanced conditions

Laka

Cross

Barrena

et al. 2013

2013 15th European Conference on Power Electronics and Applications (EPE)

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This paper compares the performance of four different power electronic converter topologies, which have been proposed for STATCOM applications. Two of the topologies are Modular Multilevel Cascaded Converters (MMCC), whilst the remaining circuits utilize magnetic elements and an open-winding transformer configuration to combine individual power modules. It is assumed that the STATCOM has to work under unbalanced conditions, so that it delivers both positive and negative sequence currents. Simulation studies for the four topologies have been carried out using the simulation tool Saber.

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“…However, the construction of new transmission systems is hindered by many factors, such as ecological considerations and unavailability of space in overpopulated areas [1]. In this regard, Flexible Alternating Current Transmission System (FACTS) devices have been being applied to improve the transmission capability [2]. Among FACTS devices, the unified power flow controller (UPFC) is the most versatile device which can control all basic power system parameters including voltage amplitude and angle, line impedance, and power flows [3,4].…”

Section: Introductionmentioning

confidence: 99%

Preventive Security-Constrained Optimal Power Flow Considering UPFC Control Modes

Zhou

Liu

et al. 2017

Energies

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Abstract:The successful application of the unified power flow controller (UPFC) provides a new control method for the secure and economic operation of power system. In order to make the full use of UPFC and improve the economic efficiency and static security of a power system, a preventive security-constrained power flow optimization method considering UPFC control modes is proposed in this paper. Firstly, an iterative method considering UPFC control modes is deduced for power flow calculation. Taking into account the influence of different UPFC control modes on the distribution of power flow after N-1 contingency, the optimization model is then constructed by setting a minimal system operation cost and a maximum static security margin as the objective. Based on this model, the particle swarm optimization (PSO) algorithm is utilized to optimize power system operating parameters and UPFC control modes simultaneously. Finally, a standard IEEE 30-bus system is utilized to demonstrate that the proposed method fully exploits the potential of static control of UPFC and significantly increases the economic efficiency and static security of the power system.

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A Large-Power Voltage Source Converter for FACTS Applications Combining Three-Level Neutral-Point-Clamped Power Electronic Building Blocks

Cited by 37 publications

References 28 publications

Five-level H-bridge NPC central photovoltaic inverter with open-end winding grid connection

Five-level H-bridge NPC central photovoltaic inverter with open-end winding grid connection

VSC topology comparison for STATCOM application under unbalanced conditions

Preventive Security-Constrained Optimal Power Flow Considering UPFC Control Modes

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