Smoothing electric power production with DFIG-based wind energy conversion technology by employing hybrid controller model

Desalegn, Belachew; Gebeyehu, Desta; Tamrat, Bimrew

doi:10.1016/j.egyr.2023.06.004

Cited by 7 publications

(2 citation statements)

References 37 publications

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“…However, for the load side of the whole energy system, there are not only electricity loads, but also "cold energy" and "heat energy" load demands [4] . Therefore, this paper takes the multi-energy interconnection system as the basic platform to build a multi-energy flow energy supply system.…”

Section: Introductionmentioning

confidence: 99%

Study on the Equivalent Conversion and Utilisation Model of Solar Energy and its Benefits

Yuan,

Wang,

Liu

2024

E3S Web Conf.

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Relying on the energy local area network (LAN), we study the equivalent conversion relationship between different “energy qualities” in the process of solar energy conversion and utilisation and its benefit model. Considering the impact of load demand characteristics and current energy consumption price factors on solar energy utilization, a multi-objective optimization model of solar energy conversion and utilization is constructed with the goals of maximizing solar energy utilization and maximizing the comprehensive benefits of system operation; then, the particle swarm optimization algorithm with quantum behaviour is used to optimize and solve the model, and a comparative analysis is carried out with the traditional single-energy supply mode. The results show that the proposed model can effectively improve the comprehensive utilisation and consumption of solar energy by the energy consumption system, and achieve higher energy sales benefits. Therefore, with the help of energy storage technology, the fluctuation and intermittency of the solar PV system output can be suppressed, and flexible grid connection can be realised, so as to enhance the grid-connected capacity of solar energy; at the same time, higher economic benefits can be obtained with the help of optimisation, coordination and control system operation. Optimised control of solar PV power generation systems under different scenarios ensures the safety and stability of the system’s power output and improves the grid-connected capability of solar PV power generation systems. The validity and feasibility of the proposed model and its operation mode are verified, providing a new idea for the development and utilisation of large-scale solar energy.

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Section: Introductionmentioning

confidence: 99%

Study on the Equivalent Conversion and Utilisation Model of Solar Energy and its Benefits

Yuan,

Wang,

Liu

2024

E3S Web Conf.

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“…In prior studies, researchers [7] focused on pitch angle control, aiming to achieve stable output power levels and minimize flicker. Another approach explored the utilization of indirect field oriented control for power smoothing [8]. However, these methods have limitations in terms of control range due to reduced wind power acquisition.…”

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confidence: 99%

Enhancing grid stability and low voltage ride through capability using type 2 fuzzy controlled dynamic voltage restorer

Sajan,

Satish Kumar,

Virtic

2024

Electrical Engineering & Electromechanics

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Introduction. The integration of Renewable Energy Sources (RESs), particularly Wind Energy Conversion Systems (WECS), is vital for reducing reliance on fossil fuels and addressing climate change. However, this transition poses challenges, including ensuring grid stability in the face of intermittent RESs. Compliance with grid codes is crucial, with a focus on Low Voltage Ride Through (LVRT) capability. Problem. The intermittent nature of RESs, specifically in Permanent Magnet Synchronous Generator (PMSG) based WECS, presents challenges to grid stability during voltage dips. Goal. To enhance voltage stability and LVRT capability in PMSG-based WECS by integrating a Dynamic Voltage Restorer (DVR) with an energy storage device. This involves regulating the input DC voltage to the DVR using a type 2 fuzzy controller, adapting intelligently to changing conditions. Methodology. DVR, powered by an energy storage device, is strategically integrated with WECS. A type 2 fuzzy controller regulates the DC voltage to DVR. The rectified WECS output undergoes processing through an isolated flyback converter. A 31-level Cascaded H-Bridge Multilevel Inverter (CHBMLI) with PI control ensures high-quality AC output. Results. The validation of developed system is executed using MATLAB/Simulink revealing a reduced Total Harmonic Distortion (THD) value of 1.8 %, ensuring significance in LVRT capability. Originality. The strategic integration of DVR with PMSG-based WECS, addresses the LVRT challenges. The use of type 2 fuzzy controller for intelligent voltage regulation and a sophisticated multilevel inverter contributes to the uniqueness of proposed solution. Practical value. The developed system provides benefits by ensuring reliable LVRT capability in PMSG-based WECS with reduced THD of 1.8 % indicating improved grid compatibility. References 26, tables 5, figures 20.

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Impact of variable renewable energy sources on the power system frequency stability and system inertia

Njoka,

Mogaka,

Wangai

2024

Energy Reports

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Smoothing electric power production with DFIG-based wind energy conversion technology by employing hybrid controller model

Cited by 7 publications

References 37 publications

Study on the Equivalent Conversion and Utilisation Model of Solar Energy and its Benefits

Study on the Equivalent Conversion and Utilisation Model of Solar Energy and its Benefits

Enhancing grid stability and low voltage ride through capability using type 2 fuzzy controlled dynamic voltage restorer

Impact of variable renewable energy sources on the power system frequency stability and system inertia

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