检索结果-内蒙古大学图书馆

Real time assessment of power quality issues in 11 kV/440 V distribution feeder using distribution static synchronous compensator

引用

TRANSACTIONS OF THE INSTITUTE OF MEASUREMENT AND CONTROL 2021年第1期43卷 3-20页

作者： Srinivasan, Suresh Krishnamoorthy, Murugaperumal Pongiannan, R. K. Jeyasudha, S. Annamacharya Inst Technol & Sci Dept Elect & Elect Engn Rajampet 516126 Andhra Pradesh India Pondicherry Univ Pondicherry Engn Coll Dept Elect Engn Pondicherry India SRM Inst Sci & Technol Dept Elect Engn Chennai Tamil Nadu India K Ramakrishnan Coll Technol Dept Elect Engn Tiruchirappalli Tamil Nadu India

The effects of power quality (PQ) issues in a distribution feeder occur due to abnormal load condition. In this paper, first, the real time PQ issues in an 11 kV/440 V distribution feeder are measured and analyzed by PQ analyzers. The sudden load fluctuations in the distribution system result in different PQ issues such as voltage sag/swell, transient, flicker and harmonics. Then, an improved interactive distribution static synchronous compensator (D-STATCOM) is installed in distribution feeder to mitigate the PQ issues. A novel control algorithm will operate the interactive D-STATCOM in voltage control mode (VCM) or current control mode (CCM). At normal operating conditions, the D-STATCOM operates in CCM, during abnormal condition the D-STATCOM will operates in VCM to mitigates the PQ issues. The D-STATCOM is modeled and simulated in MATLAB-SIMULINK environment. The field programmable gate array (FPGA)-based laboratory prototype D-STATCOM has been developed to validate the function of the controller.

关键词： Power quality distribution static synchronous compensator adjustable speed drive point of common coupling voltage control mode current control mode total harmonic distortion short-term flicker

来源：评论

学校读者我要写书评

暂无评论

Capacity optimisation method of distribution static synchronous compensator considering the risk of voltage sag in high-voltage distribution networks

引用

IET GENERATION TRANSMISSION & distribution 2015年第16期9卷 2602-2610页

作者： Li, Shuaihu Li, Yong Cao, Yijia Tan, Yi Keune, Bjoern Hunan Univ Coll Elect & Informat Engn Changsha 410082 Hunan Peoples R China TU Dortmund Univ Inst Energy Syst Energy Efficiency & Energy Econ Dortmund Germany

Unlike the traditional methods that only take static voltage stability or minimum network loss into consideration when optimising capacity of distribution static synchronous compensator (D-STATCOM), a new approach is proposed with considering the risk of voltage sag as well as the network loss and the investment cost of D-STATCOM. This approach can balance the investment cost and technical performance. Monte Carlo method is used for the random setting of fault types and locations to obtain the original probability of voltage sag under some given configuration schemes. Moreover, through revealing the hidden relationship between the original probability and the real-time load, the converted probability is presented to fit the expression for calculating the original probability of voltage sag with respect to the size of additional D-STATCOM. Finally, a single-objective capacity optimisation model is established to obtain the optimum size of additional D-STATCOM, which is based on the economic assessment method of risk. The proposed method is validated in Chinese Dongguang distribution Networks. The result confirms this method can not only reduce the loss of voltage sag, but also significantly improve the efficiency of D-STATCOM.

关键词： static VAr compensators risk management power supply quality distribution networks Monte Carlo methods capacity optimisation method distribution static synchronous compensator voltage sag probability high-voltage distribution network static voltage stability D-STATCOM network loss investment cost Monte Carlo method real-time load risk assessment method Chinese Dongguang distribution network

来源：评论

学校读者我要写书评

暂无评论

Mitigation of power quality problems using distribution static synchronous compensator: a comprehensive review

引用

IET POWER ELECTRONICS 2015年第7期8卷 1312-1328页

作者： Latran, Mohammed Barghi Teke, Ahmet Yoldas, Yeliz Cukurova Univ Elect & Elect Engn Dept Adana Turkey Abdullah Gul Univ Elect & Elect Engn Dept Kayseri Turkey

Electric power quality (PQ) in distribution system has become increasingly significant subject both for end users and power suppliers with the deregulation of the electric power market. The inadequate performance of conventional compensation devices to mitigate PQ problems has revealed the use of advanced power electronics based compensation devices. distribution static synchronous compensator (DSTATCOM) is one of the shunt connected custom power devices used to improve PQ, voltage and reactive power support and to increase the capability of the auxiliary service for utility grid. This study presents a comprehensive review of the various DSTATCOM configurations for single-phase (two-wire) and three-phase (three or four-wire) systems and control strategies for the compensation of different PQ problems in distribution systems. In addition, comprehensive explanation, comparison and discussion on DSTATCOM technology are performed. Furthermore, latest trends, practical consideration and some future research fields on DSTATCOMs are discussed in detail. This is intended to present a broad perspective on the status of DSTATCOM technology to researchers dealing with compensation of PQ problems in distribution systems.

关键词： power supply quality static VAr compensators power markets power grids power distribution control power quality problems mitigation distribution static synchronous compensator electric power quality distribution system electric power market utility grid auxiliary service capability single-phase system three-phase system two-wire system four-wire system DSTATCOM technology

来源：评论

学校读者我要写书评

暂无评论

Improved performance of multilevel inverter-based distribution static synchronous compensator with induction furnace load

引用

IET POWER ELECTRONICS 2013年第9期6卷 1939-1947页

作者： Nijhawan, Parag Bhatia, Ravinder Singh Jain, Dinesh Kumar Thapar Univ EIE Dept Patiala Punjab India Natl Inst Technol EE Dept Kurukshetra Haryana India Deenbandhu Chhotu Ram State Univ Sci & Technol EE Dept Muruthal India

Owing to the presence of large number of non-linear loads in the power distribution network, power quality levels are deteriorating. One such load is an induction furnace. The problem with the induction furnace load is that it introduces appreciable amount of harmonic distortion in the power system network. The performances of other loads connected in the power system network are also affected because of the presence of induction furnace load. In this study, the performance of a carrier phase shifted pulse-width modulation (PWM) multilevel inverter (five-level)-based distribution static synchronous compensator (DSTATCOM) is compared with that of a PWM inverter based-DSTATCOM with induction furnace load. The simulation results based on MATLAB/SIMULINK are presented to illustrate the effectiveness of multilevel inverter based-DSTATCOM for reducing harmonic distortion in the load current with induction furnace load in the distribution network.

关键词： distribution networks electric furnaces harmonic distortion induction heating power supply quality PWM invertors static VAr compensators multilevel inverter-based distribution static synchronous compensator induction furnace load nonlinear loads power distribution network power quality levels harmonic distortion reduction power system network carrier phase shifted pulse-width modulation multilevel inverter distribution static synchronous compensator carrier phase shifted PWM multilevel inverter based-DSTATCOM Matlab-Simulink load current

来源：评论

学校读者我要写书评

暂无评论

Direct Current-controlled distribution static synchronous compensator for Voltage Quality Improvement

Direct Current-controlled Distribution Static Synchronous Co...

引用

3rd International Conference on Engineering Materials, Energy, Management and Control (MEMC2013)

作者： Huang, Lei Yang, Dengxiang Tang, Jie Zhu, Qunfeng Shaoyang Univ Dept Informat Engn Shaoyang Hunan Peoples R China Sichuan Elect Power Corp Xichang Elect Power Bur Xichang Sichuan Peoples R China Shao Yang Univ Dept Elect Engn Shao Yang Hunan Peoples R China

ISBN: (纸本)9783037856147

This paper presents a direct current-controlled static reactive power compensator (DSTATCOM) for voltage quality improvement of low-medium distribution network. The main circuit of the DSTATCOM uses VSI-SPWM structure-based voltage source inverter (VSI), and both operation of reference current and control of compensation current are realized in synchronous reference frames. The function of DSTATCOM to mitigate voltage sag and flicker, two common voltage quality problems, is discussed in detail in this paper. According to the forming way of reactive reference current, operation mode of DSTACOM are classified into current control mode and voltage control mode. And under the two operation modes the function of DSTATCOM to mitigate voltage sag and flicker under different control modes is simulated with MATLAB. The simulation results show that the current control mode is suitable for mitigating voltage flicker, while the voltage control mode for voltage sag.

关键词： distribution static synchronous compensator reactive power compensation voltage quality current control mode voltage control mode

来源：评论

学校读者我要写书评

暂无评论

Multi-purpose control of bidirectional converters for power management in hybrid microgrids considering electric vehicles

引用

ELECTRIC POWER SYSTEMS RESEARCH 2025年 244卷

作者： Eisapour-Moarref, Amir Sakhaei, Hossein Zarghami, Mahyar Yazdani, Atousa Iran Univ Sci & Technol Ctr Excellence Power Syst Automat & Operat Dept Elect Engn Tehran *** Iran Calif State Univ Dept Elect & Elect Engn Sacramento CA USA

Hybrid microgrids (HMGs) are impacted by a wide range of operational issues, which can lead to technical challenges for these systems. Power management and power sharing accuracy remain two major concerns due to lack of appropriate control strategies for bidirectional DC-DC converters (BDCs), which transfer power between distributed generations (DGs), such as electric vehicles (EVs), and HMGs. Similarly, interlinking converters (ICs), which are essential for power exchange between the AC and DC sides, can further intensify this challenge. Such deficiencies can pose threats to efficient operation of HMGs. To address these issues, this paper proposes a 3-D droop-based control scheme for BDCs, designed to coordinate the performance of both EVs and BDCs on the DC side. This approach ensures accurate power sharing between BDCs despite unequal line resistances and enhances the overall power management of the HMG by involving EVs in meeting the load demand. Additionally, a novel approach for decoupling the charging and discharging modes of the EVs is introduced to eliminate circulating power among parallel BDCs. Consequently, BDC losses will be minimized, and their operational capacity remains unburdened, as unnecessary performance is avoided. Furthermore, a multi-purpose IC, formed by integrating a conventional single-stage IC with an adjustable distribution static synchronous compensator (DSTATCOM), equipped with a coordinated 3-D droop control is suggested. This not only facilitates the AC side voltage regulation (VR) through optimal reactive power compensation, but also ensures accurate reactive power sharing among parallel ICs. To accomplish this, the capacitance of the DC-link of the DSTATCOM is optimized by precisely tuning the proposed 3-D droop gains of the IC. The effectiveness of this control strategy is demonstrated and compared with other methods in the literature using an HMG testbed.

关键词： 3-D droop Bidirectional DC-DC converters (BDCs) distribution static synchronous compensator (DSTATCOM) Electric vehicles (EVs) Interlinking converters (ICs) Power management Reactive power compensation

来源：评论

学校读者我要写书评

暂无评论

Optimal coordination of unbalanced power distribution systems with integrated photovoltaic systems and semi-fast electric vehicles charging stations

引用

IET GENERATION TRANSMISSION & distribution 2022年第12期16卷 2399-2415页

作者： Alabri, Waleed Jayaweera, Dilan Univ Binningham Dept Elect Elect & Syst Engn Birmingham W Midlands England Univ Technol & Appl Sci Engn Dept Muscat Oman

Increased integration of photovoltaics (PVs) systems and charging stations for electric vehicles (EVs) has led to a substantial increase in the level of voltage unbalance beyond the acceptable limit. Ordinary voltage regulation devices such as on-load tap changers (OLTCs) and distribution static synchronous compensator (DSTATCOM) are sometimes incapable of adequately addressing this issue without proper coordination with PVs and EVs. This paper presents a novel real-time optimal coordination scheme to determine the tap position of OLTC, the amount of reactive power to be exchanged by DSTATCOM and a PV inverter, and the phase connection of EVs. The proposed scheme aims to maintain the voltage magnitude and voltage unbalance within the statutory limit while minimising the power losses in an active unbalanced power distribution system. Advanced and hybrid particle swarm optimisation (AHPSO) algorithm is also developed to solve the optimisation problem, and its robustness in comparison with other techniques is verified. The impact of uncoordinated voltage control and proposed control on voltage unbalance and power losses are investigated. Time-series simulations confirm the significance and scalability of the developed coordination control scheme on IEEE 37-node and IEEE 123-node test feeders with real data and different PV penetration levels.

关键词： ordinary voltage regulation devices voltage control particle swarm optimisation reactive power voltage magnitude integrated photovoltaic systems real-time optimal coordination scheme distribution static synchronous compensator power grids IEEE 123-node test feeders active unbalanced power distribution system photovoltaics systems hybrid particle swarm optimisation algorithm IEEE 37-node unbalanced power distribution systems phase connection statutory limit electric vehicle charging photovoltaic power systems voltage unbalance control distributed power generation PV inverter OLTCs PV penetration levels DSTATCOM optimisation problem coordination control scheme AHPSO algorithm on load tap changers invertors power losses time-series simulations semifast electric vehicle charging stations static VAr compensators uncoordinated voltage control

来源：评论

学校读者我要写书评

暂无评论

Enhancement of power quality utilizing photovoltaic fed D-STATCOM based on zig-zag transformer and fuzzy controller

引用

SCIENTIA IRANICA 2022年第5期29卷 2465-2479页

作者： Karimi, H. Simab, M. Nafar, M. Islamic Azad Univ Marvdasht Branch Dept Elect Engn Marvdasht Iran

distribution static synchronous compensator (D-STATCOM) is a shunt compensator in the distribution systems that aims, as one of the most important tasks, to improve the imbalance and reduce and eliminate the nonlinear load harmonics. Distributed generation resources, such as photovoltaic (PV) array, can be used as the DC input of D-STATCOM. In this paper, PV array and DC/DC boost convertor are used to stabilize the DC link voltage of D-STATCOM. The main advantage of the proposed method is that it always provides continuous compensation. Another power quality issue is the neutral current in four-wire systems created due to the harmonics and system imbalance. Zigzag transformer is one approach to compensating neutral current and providing isolation between the convertor and flow of the fundamental zero-sequence component, which contains harmonic neutral current. Role and performance of the distribution shunt compensator in the improvement of power quality indices depends on the performance of its control system. In this paper, the control scheme of synchronous reference frame theory based on fuzzy controller is used for D-STATCOM based on PV and zig-zag transformer. The performance and behavior of the proposed system are examined using MATLAB/Simulink software and the results are presented. (C) 2022 Sharif University of Technology. All rights reserved.

关键词： distribution static synchronous compensator Harmonic Fuzzy logic controller Photovoltaic array Zig-zag transformer

来源：评论

学校读者我要写书评

暂无评论

Minimization of the distribution operating costs with D-STATCOMS: A mixed-integer conic model

引用

ELECTRIC POWER SYSTEMS RESEARCH 2022年 212卷

作者： Montoya, Oscar Danilo Garces, Alejandro Gil-Gonzalez, Walter Univ Dist Francisco Jose de Caldas Grp Compatibilidad & Interferencia Electromagnet Fac Ingn Bogota 110231 Colombia Univ Tecnol Bolivar Fac Ingn Lab Inteligente Energia Cartagena 131001 Colombia Univ Tecnol Pereira Dept Elect Engn Pereira 660003 Colombia

This paper addresses the problem of determining the optimal location and operation of distribution static synchronous compensators (D-STATCOMs) in power distribution networks. Metaheuristic algorithms have been conventionally used to solve this mixed-integer nonlinear programming problem. In contrast, we propose a mixed-integer second-order cone programming (MI-SOCP) model that guarantees global optimum and fast convergence of the algorithms in optimization solvers. The model seeks to minimize the annual installation cost and the operating cost, subject to active and reactive power balance constraints, voltage regulation bounds, devices capabilities, and the number of D-STATCOMs available to be connected. The multiobjective nature of the problem is also analyzed and solved using the proposed MI-SOCP model. An extensive set of simulations on the IEEE-33 nodes test system demonstrate the advantages of this approach compared to conventional heuristic algorithms and with solutions given by algebraic modeling software.

关键词： Mixed-integer second-order cone model Multiobjective optimization Global optimum distribution static synchronous compensator

来源：评论

学校读者我要写书评

暂无评论

Integration of solar PV into grid using a new UPQC with differential inverter control (vol 14, pg 4254, 2020)

引用

IET GENERATION TRANSMISSION & distribution 2020年第22期14卷 5347-5347页

作者： Narayanan, S. K. Sivarajan, N. Abdu, Jasmin Erakkath GEC Idukki Kerala India APJ Abdul Kalam Technol Univ Thiruvananthapuram Kerala India

Integrated photovoltaic (PV) distribution systems voltage stability is of great significance in supporting all connected equipment smooth functioning in the distribution network. Voltage profile maintenance is one of the challenging tasks in PV integration. To maintain a constant voltage profile to a sensitive load of 22 kVA is the main idea of this study. A single-phase PV-integrated distribution...

关键词： power transformers voltage control power grids static VAr compensators power supply quality photovoltaic power systems invertors power generation control distribution networks distribution static synchronous compensator unified power quality conditioner active power decoupling facility 10 kW solar PV system battery energy storage system 20 kVA UPQC PV integration differential UPQC differential inverter control integrated photovoltaic distribution systems voltage stability connected equipment smooth functioning distribution network profile maintenance constant voltage profile single-phase PV-integrated distribution system dynamic voltage restorer apparent power 22.0 kVA power 10.0 kW apparent power 20.0 kVA

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：