A review of stabilization methods for DCMG with CPL, the role of bandwidth limits and droop control

Ansari, Sarah; Zhang, Jing; Singh, Rajat Emanuel

doi:10.1186/s41601-021-00222-x

Cited by 23 publications

(13 citation statements)

References 67 publications

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“…Because the inverter and load are considered as constant power load within a certain input voltage range when the locomotive is running, the input impedance of constant power load shows negative damping characteristics, which may cause the instability of flexible DC traction power supply system. As indicated in Refs [61,62], a large number of constant power loads connected to the DC microgrid may lead to system instability. A stability estimation method is proposed, which can be used to measure the instability risk caused by the aggregation of constant power loads and estimate the maximum number of constant power loads allowed to connect to the system.…”

Section: Stability Analysis Of the Flexible Mvdc Tpssmentioning

confidence: 99%

Overview of Stability and Coordination Control for MVDC Traction Power Supply System

Wang

2023

IEEJ Transactions Elec Engng

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The traditional 25KV electric railways have various problems such as power quality issues, passing neutral sections, complex storage, and utilization of regenerative braking energy, the medium‐voltage direct current (MVDC) traction power supply system (TPSS) may be a potential alternative electric railway mode and can be freely accessed to the renewable energy and energy storage systems, which is an important development direction of the future low‐carbon RES. This paper first describes the structure and characteristics of the current Railway Electrification System (RES), and then analyzes and summarizes the current research status of the MVDC TPSS topology structure, modeling method, stability criterion, and analysis method and coordination control strategy. Finally, combined with the research status, the development direction of the MVDC TPSS has prospected. © 2023 Institute of Electrical Engineer of Japan and Wiley Periodicals LLC.

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Section: Stability Analysis Of the Flexible Mvdc Tpssmentioning

confidence: 99%

Overview of Stability and Coordination Control for MVDC Traction Power Supply System

Wang

2023

IEEJ Transactions Elec Engng

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“…With the ongoing technological developments [3], a three-phase induction motor with open-ended winding confguration has been extensively investigated from last few years [4]. Operation of the motor drives was presented by using newly developed space-vector pulse width modulation (SVPWM) scheme [5], and a reduced power loss (by 4.5-11%) was reported [6].…”

Section: Introductionmentioning

confidence: 99%

Operation and Testing of Indirect Field Oriented Control of Asymmetrical Six-Phase Open-Ended Winding Induction Machine Using Hardware-in-Loop (HIL) Emulator

Iqbal¹,

Bakhsh

Singh

2023

International Transactions on Electrical Energy Systems

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This study deals with an asymmetrical six-phase open-ended winding induction machine in closed loop operation using indirect field-oriented control scheme. The closed loop scheme has been developed by using the two axis (d-q) modeling of six-phase induction machine in rotating synchronous reference frame and can be easily extended to any multiphase machine having the stator winding which are the multiple of three. Operation under steady-state is considered to develop the phasor diagram in closed loop operation of machine in the motoring mode. The performance of the asymmetrical six-phase induction machine (opened ended winding) is investigated in the entire four-quadrant operation. The complete machine drive system was developed by using MATLAB/Simulink, which was used to obtain analytical results in different modes. Furthermore, the analytical results in the motoring mode were experimentally validated through real-time simulation by using Typhoon hardware-in-loop (HIL) emulator.

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“…However, this power loss cannot be avoided, so the only thing that can be done is to minimize the loss. Some of the methods that have been offered in previous research to minimize the losses include power injection through flexible alternating current transmission systems (FACTS) [7,8], distributed generators (DGs) [9][10][11][12][13], and optimal sizing and placement of capacitors [14][15][16], so that the voltage profile can be corrected, which results in minimal power losses.…”

Section: Introductionmentioning

confidence: 99%

Day-Ahead Power Loss Minimization Based on Solar Irradiation Forecasting of Extreme Learning Machine

Rehiara¹,

Setiawidayat²,

Sumbung³

2023

Adv. sci. technol. eng. syst. j.

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Power losses exist naturally and have to be cared for in the operation of electrical power systems. Many researchers have worked on various methods and approaches to reduce losses by incorporating distributed generators (DG), particularly from renewable sources. These studies are based on the maximum unit penetration of the DGs, which is rarely achieved, resulting in inaccurate calculations. This paper proposes an advanced solution for calculating power losses by incorporating an Extreme Learning Machine (ELM) method for forecasting the solar irradiation. The ELM algorithm was used to create a model for forecasting solar radiation in the Manokwari region and its surroundings. Daily solar radiation in the region has been predicted using the model. NASA's 8016 data on temperature and solar irradiation were used to train the ELM model. With an MAE value of around 0.6392 and a training time of 4.4375 seconds, the test results demonstrate that the built model has good accuracy. The operation of a 1000 kWp solar power plant based on the ELM data forecasting can reduce the power loss of the existing distribution network around the location from 1.5095 kW/hour to 0.9068 kW/hour. Furthermore, the power plant operation can minimize the power loss by 39.9249 percent, from 36.2280 kW to 21.7640 kW.

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A review of stabilization methods for DCMG with CPL, the role of bandwidth limits and droop control

Cited by 23 publications

References 67 publications

Overview of Stability and Coordination Control for MVDC Traction Power Supply System

Overview of Stability and Coordination Control for MVDC Traction Power Supply System

Operation and Testing of Indirect Field Oriented Control of Asymmetrical Six-Phase Open-Ended Winding Induction Machine Using Hardware-in-Loop (HIL) Emulator

Day-Ahead Power Loss Minimization Based on Solar Irradiation Forecasting of Extreme Learning Machine

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