Overview of power electronics technology and applications in power generation transmission and distribution

Ortega, José María Maza; Acha, E.; García, Salvador Gómez; Gómez-Expósito, Antonio

doi:10.1007/s40565-017-0308-x

Cited by 83 publications

(50 citation statements)

References 66 publications

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“…The PE device's harmonic-current response ΔI to the voltage excitation ΔU with different harmonics, as shown with (1), are used for extraction of the admittance values Yeq (2). Both, ΔI and ΔU, are the vectors defining a change of the PE device current and POC voltage on a wide, discrete frequency range.…”

Section: Emt Model Frequency Scanningmentioning

confidence: 99%

“…Transmission networks are under heavy influence of the fast development of new power electronic (PE) technologies in the field of power generation and transmission [1], [2]. Due to environmental concerns, we are facing a rapidly increasing share of renewable energy sources , as are wind and photovoltaic generation, and, consequently, high-voltage DC (HVDC) transmission is becoming an increasingly viable option for improving the network transfer capacity [3], [4].…”

Section: Introductionmentioning

confidence: 99%

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Harmonic Emissions of Power Electronic Devices Under Different Transmission Network Operating Conditions

Božiček

Kilter

Sarnet

et al. 2018

IEEE Trans. on Ind. Applicat.

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Harmonic emissions of power electronic (PE) devices connected to transmission networks are introducing new and rising trends of harmonic distortion. Analyses, which focus on assessing the harmonic levels in PE-rich power networks of the future, are mostly based on digital simulations, which require accurate models of the power system and connected devices. The simulations are usually performed with the use of EMT models, resulting in long simulation times, or the use of over-simplified load-flow models. In this paper, we propose a methodology that can be used to define accurate frequency-domain simulation models of PE devices. The models are derived by frequency-dependent multi-parameter scanning. The resulting models can be employed for harmonic load-flow simulations in different network and PE-device operating conditions. They enable the assessment of the impact of frequency-dependent network-impedance characteristics and, moreover, the effect of cross-coupling between different frequency components. The analysis is focused on high-power, high-voltage power-electronic devices, which cannot be easily measured or analyzed for harmonic characteristics. Therefore, the methodology requires detailed EMT models of the devices, which are analyzed within different operating conditions. The accurate equivalent models of PE devices represent a crucial element within the context of harmonic emission studies in large transmission networks.

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Section: Emt Model Frequency Scanningmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Harmonic Emissions of Power Electronic Devices Under Different Transmission Network Operating Conditions

Božiček

Kilter

Sarnet

et al. 2018

IEEE Trans. on Ind. Applicat.

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show abstract

“…Environmental and economic constraints make the construction of new lines arduous in urban areas. With the advent of power electronics technology, utilization of flexible AC transmission system (FACTS) devices has become one of the important options to improve power grid stability and loadability [2][3][4] by adjusting some system parameters such as line impedance, bus voltage and angle. Although various types of FACTS devices have been investigated theoretically for decades, high initial investment cost and reliability concerns are the major factors that limit their widespread adoption.…”

Section: Introductionmentioning

confidence: 99%

“…The optimal placement of static var compensator (SVC) and thyristor-controlled series compensators (TCSC) is investigated with the objectives of loadability maximization and installation cost minimization using multi-objective particle swarm optimization method in [12,13];`Several FACTS devices are optimally implemented to improve system performance. References [14][15][16][17] present the effects of different types of FACTS devices on system voltage stability, power flow entropy or loadability. In addition, multi-objective optimization placement of multi-type FACTS devices is investigated in [18][19][20] based on intelligent optimization algorithms.…”

Section: Introductionmentioning

confidence: 99%

Optimal configuration of distributed power flow controller to enhance system loadability via mixed integer linear programming

Dai

Tang

Liu

et al. 2019

J. Mod. Power Syst. Clean Energy

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Increasing energy consumption has caused power systems to operate close to the limit of their capacity. The distributed power flow controller (DPFC), as a new member of distributed flexible AC transmission systems, is introduced to remove this barrier. This paper proposes an optimal DPFC configuration method to enhance system loadability considering economic performance based on mixed integer linear programming. The conflicting behavior of system loadability and DPFC investment is analyzed and optimal solutions are calculated. Thereafter, the fuzzy decision-making method is implemented for determining the most preferred solution. In the most preferred solution obtained, the investment of DPFCs is minimized to find the optimal number, locations and set points. Simulation results on the IEEE-RTS79 system demonstrate that the proposed method is effective and reasonable.

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“…Since the concepts of flexible alternating current transmission system (FACTS) and high voltage direct current (HVDC) were proposed, researchers have made great progress in the field of power electronic applications in transmission and distribution networks. The integration of advanced power electronics technology brings great advantages in enhancing the reliability and improving the operating performances . Generally, power electronics applied in the power grid are classified into 2 types, FACTS and voltage source converter based HVDC (VSC‐HVDC).…”

Section: Introductionmentioning

confidence: 99%

Key technologies for flexible interconnection in urban power grid and pilot demonstration

Xiao

Bai

et al. 2018

Int Trans Electr Energ Syst

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Summary The application of power electronics is an important trend of power system transformation. This paper introduces the world's first flexible interconnection in 220‐kV urban power grid for the first time. This paper presents the key technologies for this project. Firstly, this paper introduces the concept of flexible interconnection, in which the flexible loop operation mode is proposed. Then, this paper introduces the pilot project of partition flexible interconnection in Beijing, China. The project is to build a new flexible DC interconnection based on back‐to‐back modular multilevel converter technology between 2 subtransmission areas in Beijing power supply grid, in order to enhance stability and security. Finally, the project is comprehensively evaluated based on real project data, in which transient voltage stability, static voltage security, total supply capability, short‐circuit current, and reliability are analyzed. The results have shown the effectiveness of the proposed flexible interconnection in large‐scale urban power grid. This project demonstrates a promising application of advanced power electronics in urban power grid.

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Overview of power electronics technology and applications in power generation transmission and distribution

Cited by 83 publications

References 66 publications

Harmonic Emissions of Power Electronic Devices Under Different Transmission Network Operating Conditions

Harmonic Emissions of Power Electronic Devices Under Different Transmission Network Operating Conditions

Optimal configuration of distributed power flow controller to enhance system loadability via mixed integer linear programming

Key technologies for flexible interconnection in urban power grid and pilot demonstration

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