Enhanced controller for grid-connected modular multilevel converters in distorted utility grids

Rey-Boué, Alexis B.; Martinez-Rodrigo, Fernando; Guerrero-Rodríguez, N.F.; Lucas, Luis Carlos Herrero-de; Pablo, Santiago de

doi:10.1016/j.epsr.2018.06.011

Cited by 10 publications

(9 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The platform for this study is built with the TMS320F28379D microcontroller from Texas Instruments [54] and the PLECS RT Box1 (Plexim) HIL boards with several analogues and digital input/outputs [55] (see Figure 11). The file with the C-code was created and uploaded into both targets [46], and the voltages and currents measurements are recorded in the host PC in order to monitor them as described in Figure 11. Tables 2 and 3 present the power parameters for the grid side and the control subsystem parameters, respectively.…”

Section: Controller Hardware-in-the-loop Simulation For the Grid-sidementioning

confidence: 99%

“…The GSC is able to regulate the DC voltage in order to generate the reference of active power 188 , by using a PI regulator [46] and also to regulate the injected reactive power into the utility 189 grid. The latter is achieved by regulating properly the P-N SCs of the grid currents to deal with the 190 grid voltage disturbance conditions and the power oscillations furnished by the RSC to the DC-link.…”

mentioning

confidence: 99%

“…Controller Hardware-in-the-Loop Simulation for the Grid-Side Converter277In this section, some tests are realized to verify the proposed GSC algorithm effectiveness by 278 applying the HIL simulation[46,54]. This method uses a DRTS with various input/output digital 279 signals, digital-to-analogue and analogue-to-digital converters , in order to simulate the power 280 system behaviour in real time.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Improved Control of Grid-connected DFIG-based Wind Turbine using Proportional-Resonant Regulators during Unbalanced Grid

Karkri

Rey-Boué

Moussaoui³

et al. 2019

Energies

View full text Add to dashboard Cite

The quality of power and current control are the greatest challenges of grid-connected wind farms during abnormal conditions. The negative-and positive-sequence components of the grid currents may be injected into a wind generation system during grid faults, which can affect the power stability and damage the wind system. The proposed work assures a low-voltage ride through capability of doubly-fed induction generator-based wind turbines under the grid voltage sag. A new technique to protect the wind system and to recompense the reactive power during failures of the utility grid according to the Spanish grid code is proposed. The control design is implemented to the power converters, and the grid current regulation is developed by using proportional-resonant regulators in a stationary two-phase (αβ) reference frame. The control performance is significantly validated by applying the real-time simulation for the rotor-side converter and the hardware in the loop simulation technique for the experiment of the generator's grid-side converter control.

show abstract

Section: Controller Hardware-in-the-loop Simulation For the Grid-sidementioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

Improved Control of Grid-connected DFIG-based Wind Turbine using Proportional-Resonant Regulators during Unbalanced Grid

Karkri

Rey-Boué

Moussaoui³

et al. 2019

Energies

View full text Add to dashboard Cite

show abstract

“…The increase of the penetration of renewable agents in the energy mix [1], together with the necessity to maintain the stability of the electric power systems make the new grid codes more restrictive nowadays for grid-connected photovoltaic (PV) systems and other renewable agents [2][3][4][5]. For example, these systems must remain connected under certain conditions so as to improve the voltage profile of the utility grid when there are voltage sags [6][7][8]. In addition, the amplitude of the three-phase inverter currents needs to be limited to its nominal value in order to avoid its automatic disconnection from the utility grid avoiding the inverter failure.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, the amplitude of the three-phase inverter currents needs to be limited to its nominal value in order to avoid its automatic disconnection from the utility grid avoiding the inverter failure. The two conditions mentioned above are known as Low-Voltage-Ride-Through (LVRT) capability [8].…”

Section: Introductionmentioning

confidence: 99%

Modeling and Design of the Vector Control for a Three-Phase Single-Stage Grid-Connected PV System with LVRT Capability according to the Spanish Grid Code

et al. 2019

Self Cite

View full text Add to dashboard Cite

This article deals with the vector control in dq axes of a three-phase grid-connected photovoltaic system with single-stage topology and low-voltage-ride-through capability. The photovoltaic generator is built using an array of several series-parallel Suntech PV modules and is modeled as a Lookup Table (two-dimensional; 2-D). The requirements adopted when grid voltage sags occur are based in both the IEC 61400-21 European normative and the allowed amount of reactive power to be delivered according to the Spanish grid code, which avoids the disconnection of the inverter under grid faults by a limitation in the magnitude of the three-phase output inverter currents. For this, the calculation of the positive- and negative-sequences of the grid voltages is made and a conventional three-phase Phase-Locked Loop is used for the inverter-grid synchronization, allowing the control of the active and reactive powers solely with the dq components of the inverter currents. A detailed enhanced flowchart of the control algorithm with low-voltage-ride-through capability is presented and several simulations and experiments using Matlab/SIMULINK and the Controller Hardware-in-the-Loop simulation technique, respectively, are run for several types of one- and three-phase voltage sags in order to validate its behavior.

show abstract

A multi-phase impedance source inverter with an improved controller structure

et al. 2019

View full text Add to dashboard Cite

Enhanced controller for grid-connected modular multilevel converters in distorted utility grids

Cited by 10 publications

References 48 publications

Improved Control of Grid-connected DFIG-based Wind Turbine using Proportional-Resonant Regulators during Unbalanced Grid

Improved Control of Grid-connected DFIG-based Wind Turbine using Proportional-Resonant Regulators during Unbalanced Grid

Modeling and Design of the Vector Control for a Three-Phase Single-Stage Grid-Connected PV System with LVRT Capability according to the Spanish Grid Code

A multi-phase impedance source inverter with an improved controller structure

Contact Info

Product

Resources

About