Detailed and Average Models of a Grid-Connected MMC-Controlled Permanent Magnet Wind Turbine Generator

Rosyadi, Marwan; Umemura, Atsushi; Takahashi, Rion; Tamura, Junji

doi:10.3390/app12031619

Cited by 7 publications

(4 citation statements)

References 21 publications

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“…A comparison between detailed and average models for a MMC-controlled permanent magnet synchronous generator (PMSG)-based wind turbine is presented in [25]. Both models detail electrical topology and control schemes, with the detailed model considering switching phenomena while the average model simplifies the MMC circuit.…”

Section: System-level Modelling and Simulationmentioning

confidence: 99%

Continuous Time Simulation and System-Level Model of a MVDC Distribution Grid Including SST and MMC-Based AFE

Siemaszko,

Carpita

2024

Electronics

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Medium-voltage DC (MVDC) technology has gained increasing attention in recent years. Power electronics devices dominate these grids. Accurate simulation of such a grid, with detailed models of switching semiconductors, can quickly became very time-consuming, according to the number of connected devices to be simulated. A simulation approach based on interactions on a continuous time model can be very interesting, especially for developing a system-level control model of such a modern MVDC distribution grid. The aim of this paper is to present all the steps required for obtaining a continuous time modelling of a +/−10 kV MVDC grid case study, including a solid-state transformer (SST)- and modular multilevel converter (MMC)-based active front end (AFE). An additional aim of this paper is to supply educational content about the use of the continuous time simulation approach, thanks to a detailed description of the various devices modelled into the presented MVDC grid. The results of a certain number of simulation scenarios are eventually presented.

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Section: System-level Modelling and Simulationmentioning

confidence: 99%

Continuous Time Simulation and System-Level Model of a MVDC Distribution Grid Including SST and MMC-Based AFE

Siemaszko,

Carpita

2024

Electronics

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“…The PMSG converts the wind energy captured by the wind turbine into electrical energy through electromagnetic effects. If we neglect the shafting dynamic effect, the expression of the rotor dynamic equation is as follows (Rosyadi et al, 2022):…”

Section: Wind Turbine and Pmsg Modelmentioning

confidence: 99%

Research on simplified modeling of large-scale wind farms based on equivalent transfer function and aggregate equivalent

et al. 2023

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Introduction: In grid-connected research of large-scale wind farms, the problem of long simulation time exists in the research based on detailed model. In order to realize the fast simulation and grid-connected transient research of wind farm, this paper presents a simplified equivalent model of wind farm based on equivalent transfer function and improved capacity weighting method.Methods: This paper analyzes the mathematical model of wind turbine, corresponding to the strategy of design simplification, and the simplified model is built according to the equivalent transfer function. In addition, this paper considers the equivalent line loss model of collector line, classifies and aggregates the simplified wind turbines, and calculates the equivalent value of the converged wind turbines by using the improved capacity weighting method, the grid-connected simplified modeling of large-scale wind farm is realized.Results: A model of wind farm-MMC-HVDC flexible grid-connected wind power system is built. The simulation results show that the simplified equivalent model improves the simulation speed greatly while guaranteeing the dynamic characteristics.Discussion: The simplified equivalent strategy of wind farm can keep the same dynamic performance with the detailed model, and improve the simulation speed, and realize the fast simulation and grid-connected transient research of wind farm.

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“…It was not extended to large-scale electrification because it required large and powerful permanent magnets and these magnets were very expensive. However, due to the gearless design, the complete controllability of the system, and the excellent efficiency of the PMSG, it is widely preferred in WECS [15][16][17]. The PMSG is widely utilized in variable speed operations, particularly at extremely low and medium power levels.…”

Section: Gw and Reachedmentioning

confidence: 99%

Design and Experimental Verification of PUC Multilevel Inverter-Based PMSG Wind Energy Conversion System

Hasirci,

Vural

2023

Applied Sciences

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In this study, a wind energy conversion system is designed using a three-phase permanent magnet synchronous generator, a six-diode bridge rectifier, a DC–DC boost converter, an inverter, and a load. The proposed inverter is a Packed U-Cell-based multilevel inverter having five or seven voltage levels at the output. It is also a topology that is not widely used in wind energy applications. Furthermore, a dual-mode PI-PI control technique is proposed to regulate the auxiliary capacitor voltage in the PUC MLI. The inverter is designed and simulated for a permanent magnet synchronous generator-based variable speed wind energy conversion system. Additionally, the design and experimental application of the proposed system is carried out in a laboratory environment. In the experimental application, the rated voltage of the Packed U-Cell multilevel inverter is chosen as 45 V. The switching frequency of the multilevel inverter is set to 4 kHz, and a generator with rated power of 700 W is selected. The output voltage of the generator is varied between 25 V and 35 V through an induction motor. This varying voltage is increased to 45 V using a DC–DC boost converter. Finally, it is observed that the power generated by the permanent magnet synchronous generator is successfully transferred to the load and the designed system operates with low harmonic content.

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Detailed and Average Models of a Grid-Connected MMC-Controlled Permanent Magnet Wind Turbine Generator

Cited by 7 publications

References 21 publications

Continuous Time Simulation and System-Level Model of a MVDC Distribution Grid Including SST and MMC-Based AFE

Continuous Time Simulation and System-Level Model of a MVDC Distribution Grid Including SST and MMC-Based AFE

Research on simplified modeling of large-scale wind farms based on equivalent transfer function and aggregate equivalent

Design and Experimental Verification of PUC Multilevel Inverter-Based PMSG Wind Energy Conversion System

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