فهرست مقالات fault current limiter

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  1 - یک روش جدید جهت بهبود عملکرد گذرا و کاهش اختلالات ریز‌شبکه با استفاده از محدود‌کننده‌ جریان خطای ابررسانایی مقاومتی و اتوریکلوزر
  آرمان گلزارفر احمد میرزائی
  10.30486/teeges.2024.2002968.1118
  استفاده روز‌افزون از منابع تولید پراکنده در ریز‌شبکه‌ها، باعث بروز مشکلاتی در زمان وقوع خطا از جمله افزایش سطح جریان اتصال کوتاه در ریز‌شبکه و در نتیجه آن، موجب اختلالات در سیستم پس از رفع خطا می‌شود. در این مقاله با استفاده از یک روش جدید، مکان نصب و مقدار مقاومت بهینه چکیده کامل

  استفاده روز‌افزون از منابع تولید پراکنده در ریز‌شبکه‌ها، باعث بروز مشکلاتی در زمان وقوع خطا از جمله افزایش سطح جریان اتصال کوتاه در ریز‌شبکه و در نتیجه آن، موجب اختلالات در سیستم پس از رفع خطا می‌شود. در این مقاله با استفاده از یک روش جدید، مکان نصب و مقدار مقاومت بهینه محدود‌کننده جریان خطای ابررسانایی مقاومتی در ریز‌شبکه با در نظر گرفتن تلفات انرژی محدود‌کننده جریان خطای ابررسانایی مقاومتی، الزامات گذر از ولتاژ پایین ژنراتور القایی دو سو تغذیه و ظرفیت قطع کلید‌های ریزشبکه مشخص می‌گردد. همچنین یک مدل ریاضی از محدود‌کننده جریان خطای ابررسانایی مقاومتی ارائه می‌شود که با شبیه‌سازی و قرار دادن آن در ریز‌شبکه و اعمال انواع خطا‌ها در نقاط مختلف ریز‌شبکه، اثر‌بخشی محدود‌کننده جریان خطای ابررسانایی مقاومتی پیشنهادی در کاهش سطح جریان اتصال کوتاه ریز‌شبکه، تاثیر استفاده همزمان محدود‌کننده جریان خطای ابررسانایی مقاومتی و اتوریکلوزر‌ در کاهش قابل توجه اختلالات پس از رفع خطا و بهبود الزامات گذر از ولتاژ پایین ژنراتور القایی دو سو تغذیه مورد تایید قرار می‌گیرند. در پایان نیز مقایسه تحلیلی روش پیشنهادی با سایر مطالعات انجام شده در این زمینه مورد بررسی قرار گرفته و اثر بخشی آن را به اثبات می‌رساند. پرونده مقاله
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  2 - Optimal Location and Determination of Fault ‎Current Limiters in the Presence of Distributed ‎Generation Sources Using a Hybrid Genetic Algorithm
  Salman Amirkhan Mostafa Rayatpanah Ghadikolaei Hassan Pourvali Souraki
  Nowadays, the presence of distributed generation (DG) units in the distribution network is increasing due to their advantages. Due to the increasing need for electricity, the use of distributed generation sources in the power system is expanding rapidly. On the other ha چکیده کامل

  Nowadays, the presence of distributed generation (DG) units in the distribution network is increasing due to their advantages. Due to the increasing need for electricity, the use of distributed generation sources in the power system is expanding rapidly. On the other hand, in order to respond to the growth of load demand, the network becomes wider and more interconnected. These factors increase the level of fault current in the power system. Sometimes this increase causes the fault current level to exceed the ability to disconnect the protective devices, which can cause serious damage to the equipment in the power system. Using fault current limiters (FCLs) in power system is very promising solution in suppressing short circuit current and leads use of protective equipment with low capacities in the network. In this paper, in order to solve the problem of increasing the fault current, first using sensitivity analysis, network candidate lines are selected to install the fault current limiter, which helps to reduce the time and search space to solve the problem. Simultaneously finding the optimal number, location and amount of impedance for the installation of a resistive superconductor limiter is solved using the multi-objective Non-dominated genetic algorithm with non-dominated sorting (NSGA-II). The method presented in a 20 kV ring sample network, simulated in PSCAD software, is evaluated in the presence of distributed generation sources and its efficiency is shown. پرونده مقاله
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  3 - Transient Stability Improvement of a Hybrid Power System: A Novel Configuration of Compensating Type Custom Power Devices and Fault Current Limiters.
  Shahab Khormali Salman Amirkhan Ramin Mokhtari Hassan Pourvali Souraki Tatiana Kovacikova masoud radmehr Azadeh Sadat Naeimi
  Applying distributed energy resources (DERs) to power systems has been promoted as a promising option to meet the growing electricity demand. Despite significant economic, environmental, and resiliency benefits, integrating DER, including power electronic devices, into چکیده کامل

  Applying distributed energy resources (DERs) to power systems has been promoted as a promising option to meet the growing electricity demand. Despite significant economic, environmental, and resiliency benefits, integrating DER, including power electronic devices, into the existing power networks causes stability and power quality issues. Therefore, to meet stability and power quality standard limits, a sort of compensation using cost-effective and energy-efficient technologies and power electronics-based concepts is needed. This paper presents a novel configuration of compensating type custom power devices (CPDs) and fault current limiters (FCLs) for limiting balanced and unbalanced faults and improving the transient performance of distributed generation (DG) sources in a hybrid power system. Moreover, three power grid operational scenarios are addressed to reflect the impact of the type of fault and variable power generation capacity of DGs on transient stability. Four configurations are implemented using two FCLs (BFCL and SFCL) and two energy compensation devices (DVR and UPQC). The transient performance of involved DGs with and without applying proposed compensation methods is simulated. Simulation experiments were carried out using MATLAB/SIMULINK software. The simulation results indicate that UPQC- BFCL is the best solution in all scenarios that improve the transient stability of the proposed power system under both balanced and unbalanced faults. پرونده مقاله
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  4 - Presenting a New Fault Current Limiter Structure to Reduce the Over-voltage of the DFIG DC Link in the Voltage Sag Condition
  Mohsen Ghorbani Babak Mozafari Mehdi Firouzi Farzad Golshan
  In this study a new type of fault current limiter is introduced. It has been named multi-functional capacitive fault current limiter (MCFCL). as a variable capacitor, its function is to control active power flow in normal conditions as well as improving the capability o چکیده کامل

  In this study a new type of fault current limiter is introduced. It has been named multi-functional capacitive fault current limiter (MCFCL). as a variable capacitor, its function is to control active power flow in normal conditions as well as improving the capability of low voltage rid-through (LVRT) in fault operating conditions. The new structure has been proposed based on the capacitive bridge-type fault current limiter (BFCL) and the RL-type fault current limiter (FCL), which is modified to enhance low-voltage ride-through capability. To assess the efficacy of proposed fault current limiter, the time domain simulations were executed in PSCAD/EMTDC software and its function is compared with the RL-type SSFCLs in normal and symmetrical or asymmetrical fault conditions. Also its efficacy has been evaluated in a fixed speed based wind farm. The result of simulations showed that the MCFCL is not only able to control the power flow in normal operating condition, but also improves the LVRT performance in fault operating condition in the wind farms. پرونده مقاله
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  5 - A Novel Multi-Functional Capacitive Fault Current Limiter to Enhance LVRT Capability of Wind Farm
  Mohsen Ghorbani Babak Mozafari Mehdi Firouzi Farzad Golshan
  In this study a new type of fault current limiter is introduced. It has been named multi-functional capacitive fault current limiter (MCFCL). as a variable capacitor, its function is to control active power flow in normal conditions as well as improving the capability o چکیده کامل

  In this study a new type of fault current limiter is introduced. It has been named multi-functional capacitive fault current limiter (MCFCL). as a variable capacitor, its function is to control active power flow in normal conditions as well as improving the capability of low voltage rid-through (LVRT) in fault operating conditions. The new structure has been proposed based on the capacitive bridge-type fault current limiter (BFCL) and the RL-type fault current limiter (FCL), which is modified to enhance low-voltage ride-through capability. To assess the efficacy of proposed fault current limiter, the time domain simulations were executed in PSCAD/EMTDC software and its function is compared with the RL-type SSFCLs in normal and symmetrical or asymmetrical fault conditions. Also its efficacy has been evaluated in a fixed speed based wind farm. The result of simulations showed that the MCFCL is not only able to control the power flow in normal operating condition, but also improves the LVRT performance in fault operating condition in the wind farms. پرونده مقاله
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  6 - Investigation of Distance Relay Performance in Presence of Resistive ‎Bridge-Type Fault Current Limiter (RBFCL)‎
  Amangaldi Koochaki Mani Khorasaninezhad
  Due to the development of fault current limiters (FCLs) for employment in high voltage (HV) level power system, the possibility of utilizing them in transmission systems has increased. Installation FCLs have significantly advantages to flexible and reliable operation of چکیده کامل

  Due to the development of fault current limiters (FCLs) for employment in high voltage (HV) level power system, the possibility of utilizing them in transmission systems has increased. Installation FCLs have significantly advantages to flexible and reliable operation of power system. Despite the more advantages of installation FCLs, it affects on the transmission lines protection system, which is commonly protected with distance relays.FCLs change the impedance of transmission lines during fault, which can lead to failure operation of distance relay. In this work, the effect of resistive bridge-type fault current limiter (RBFCL) on the apparent impedance seen by distance relay is investigated. For achieve this, first, the RBFCL is modeled in PSCAD/EMTDC and then the effect of its impact on the distance relay characteristic is evaluated. To this study different short circuit fault including single line to ground (SLG) and line to line (LL) faults are taken in to account. Simulation results reveal the adverse impact of the RBFCL on distance relay performance. پرونده مقاله
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  7 - Improvement of LVRT Capability of Wind Farms by Using SMES and ‎R-Type BFCL
  Masoud ‎ Radmehr‎ Seyyedeh Maral Moharreri koushalshah
  Fulfillment the Low-voltage ride-through (LVRT) is required for wind farms (WFs) connected to the power system. This paper proposes simultaneous using both superconducting magnetic energy storage (SMES) and R-type solid-state fault current limiter (SSFCL) for enhancemen چکیده کامل

  Fulfillment the Low-voltage ride-through (LVRT) is required for wind farms (WFs) connected to the power system. This paper proposes simultaneous using both superconducting magnetic energy storage (SMES) and R-type solid-state fault current limiter (SSFCL) for enhancement the LVRT capability of WFs. The WFs is modeled with a doubly-fed induction generator (DFIG). The drive-train system is modeled by two-mass drive system. The analytical and simulation studies of using both SCES and R-type SSFCL for improving the LVRT capability of WFs are presented and compared with the impact of the Using the SMES alone. The simulation results show that simultaneous using both SCES and SSFCL effectively improves the LVRT capability of WFs connected to weak grids. Simulation were performed in PSCAD/EMTDC software environment. پرونده مقاله
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  8 - تاثیر نوع و میزان امپدانس محدودکننده‌های جریان خطا بر پایداری گذرای سیستم قدرت با در نظر گرفتن زمان قطع کلید
  مهدی دهقانی اشکذری سید محمود مدرسی سید امین سعید طاهره دائمی حمیدرضا اکبری
  : به طور کلی اساس عملکرد اغلب محدودکننده های جریان خطا کاهش جریان اتصال کوتاه به وسیله واردکردن یک امپدانس بزرگ در مدار در زمان وقوع خطا است. محدودکننده های جریان خطا در مورد نوع امپدانس و چگونگی وارد شدن و خارج شدن امپدانس به سیستم با هم متفاوت هستند. دراین مقاله با در چکیده کامل

  : به طور کلی اساس عملکرد اغلب محدودکننده های جریان خطا کاهش جریان اتصال کوتاه به وسیله واردکردن یک امپدانس بزرگ در مدار در زمان وقوع خطا است. محدودکننده های جریان خطا در مورد نوع امپدانس و چگونگی وارد شدن و خارج شدن امپدانس به سیستم با هم متفاوت هستند. دراین مقاله با در نظر گرفتن سه مکان مختلف جهت نصب محدودکننده جریان خطا در یک شبکه قدرت نمونه و همچنین تغییر نوع (سلفی یا مقاومتی) و مقدار امپدانس آن در یک بازه بزرگ، اثرات این پارامترها بر پایداری سیستم قدرت مورد بررسی و تحلیل قرار گرفته است. معیاری که برای اولین بار در این مقاله توسط نویسندگان جهت بررسی و ارزیابی پایداری گذرای سیستم قدرت مورد استفاده قرار گرفته است، روش اختلاف بین سطح شتاب دهنده و شتاب گیرنده است. اساس این روش بر مبنای معیار سطوح برابر است. موارد دیگری که در این مقاله به آن پرداخته شده است یکی ارایه روشی جهت مکان یابی و تعیین مقدار بهینه امپدانس محدودکننده جریان خطا جهت بهبود پایداری سیستم قدرت است. همچنین، اثر زمان رفع خطا بر پایداری گذرا، هنگام حضور محدودکننده جریان خطا در شبکه قدرت، مورد مطالعه قرار گرفته است. پرونده مقاله
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  9 - Determine the Impedance Value of Fault Current Limiter (FCL) in Electric Power System
  سید محمود مدرسی حمید لسانی
  In this paper, a method to compute optimum impedance of fault current limiter (FCL) is presented. The type of FCL impedance based on its resistance, inductance and capacitance has an effect on the amount of short circuit current reduction. Therefore, for an optimum resu چکیده کامل

  In this paper, a method to compute optimum impedance of fault current limiter (FCL) is presented. The type of FCL impedance based on its resistance, inductance and capacitance has an effect on the amount of short circuit current reduction. Therefore, for an optimum result a complex parameter is selected for the FCL impedance. In addition, magnitude of short circuit current is also affected by location of FCL and the amount of system parameter. Due to the cost difference of real and imaginary components of FCL impedance, this calculation is based of sensitivity analysis, such that while minimizing the cost of impedance parts for FCL, reduction in fault current is maximized. Moreover, based on the maximum allowable current constraint and using a developed computer program, an optimum FCL impedance for a wide range of prices for real and imaginary components are computed. These analyses were applied on a 11 bus test system with using a specified single location of FCL. پرونده مقاله