Articles

Research on optimal configuration strategy of energy storage capacity in grid-connected microgrid

The optimal configuration of battery energy storage system is key to the designing of a microgrid. In this paper, a optimal configuration method of energy storage in grid-connected microgrid is proposed. First...

Authors: Jianlin Li, Yushi Xue, Liting Tian and Xiaodong Yuan

Optimal temporal-spatial PEV charging scheduling in active power distribution networks

The increasing penetration of a massive number of plug-in electric vehicles (PEVs) and distributed generators (DGs) into current power distribution networks imposes obvious challenges on power distribution net...

Authors: Siyang Sun, Qiang Yang and Wenjun Yan

Retraction Note: An improved under frequency load shedding strategy based on dynamic power flow tracing

Authors: Shun Li, Qingfen Liao, Dichen Liu and Bingcheng Cen

k-NN based fault detection and classification methods for power transmission systems

This paper deals with two new methods, based on k-NN algorithm, for fault detection and classification in distance protection. In these methods, by finding the distance between each sample and its fifth neares...

Authors: Aida Asadi Majd, Haidar Samet and Teymoor Ghanbari

Modeling methodology and fault simulation of distribution networks integrated with inverter-based DG

The increasing penetration of inverter-based distributed generations (DGs) significantly affects the fault characteristics of distribution networks. Fault analysis is a keystone for suitable protection scheme ...

Authors: Longchang Wang, Houlei Gao and Guibin Zou

A fast time-frequency response based differential spectral energy protection of AC microgrids including fault location

This paper proposes a pattern recognition based differential spectral energy protection scheme for ac microgrids using a Fourier kernel based fast sparse time-frequency representation (SST or simply the sparse S-...

Authors: O. Dharmapandit, R. K. Patnaik and P. K. Dash

Active-reactive scheduling of active distribution system considering interactive load and battery storage

Distributed generation (DG) are critical components for active distribution system (ADS). However, this may be a serious impact on power system due to their volatility. To this problem, interactive load and ba...

Authors: Qixin Chen, Xiangyu Zhao and Dahua Gan

Research on the protection coordination of permanent magnet synchronous generator based wind farms with low voltage ride through capability

To coordinate the protection of PMSG (permanent magnet synchronous generator), collector circuits and outgoing lines, a comprehensive and improved protection method of PMSG based wind farms with LVRT (low volt...

Authors: Renfeng Tao, Fengting Li, Weiwei Chen, Yanfang Fan, Chenguang Liang and Yang Li

Protection coordination in distribution systems with and without distributed energy resources- a review

Emission of greenhouse gases and depletion of fossil fuel reserves are two key drivers, which are forcing the mankind to generate the future energy demand from the renewable energy resources. These resources a...

Authors: Manohar Singh

Configuration and operation combined optimization for EV battery swapping station considering PV consumption bundling

Integration of electric vehicles (EVs), demand response and renewable energy will bring multiple opportunities for low carbon power system. A promising integration will be EV battery swapping station (BSS) bun...

Authors: Yu Cheng and Chengwei Zhang

Time series modeling and filtering method of electric power load stochastic noise

Stochastic noises have a great adverse effect on the prediction accuracy of electric power load. Modeling online and filtering real-time can effectively improve measurement accuracy. Firstly, pretreating and i...

Authors: Li Huang, Yongbiao Yang, Honglei Zhao, Xudong Wang and Hongjuan Zheng

A novel protection scheme for synchronous generator stator windings based on SVM

This paper proposes a novel scheme for detecting and classifying faults in stator windings of a synchronous generator (SG). The proposed scheme employs a new method for fault detection and classification based...

Authors: Magdi El-Saadawi and Ahmed Hatata

Optimal configuration analysis for a campus microgrid—a case study

The foremost issues of 21^st century are challenging demand of electrical energy and to control the emission of Green House Gases (GHG) emissions. Renewable energy resources based sustainable microgrid emerges as ...

Authors: Fahad Iqbal and Anwar Shahzad Siddiqui

An adaptive supervised wide-area backup protection scheme for transmission lines protection

Maloperation of conventional relays is becoming prevalent due to ever increase in complexity of conventional power grids. They are dominant during power system contingencies like power swing, load encroachment...

Authors: B. Mallikarjuna, P. V. Vardhan Varma, S. D. Samir, M. Jaya Bharata Reddy and D. K. Mohanta

An adaptive limited wide area differential protection for power grid with micro-sources

The operation mode of power grids with intermittent distributed generations (DGs) changes frequently due to the bidirectional power flow. In comparison with the conventional grids, the protection relays in pow...

Authors: Shuanghui Wu

Analysis of voltage stability uncertainty using stochastic response surface method related to wind farm correlation

Wind speed follows the Weibull probability distribution and wind power can have a significant influence on power system voltage stability. In order to research the influence of wind plant correlation on power ...

Authors: Zhaoxing Ma, Hao Chen and Yanli Chai

Research on multi-terminal traveling wave fault location method in complicated networks based on cloud computing platform

Cloud computing technology is used in traveling wave fault location, which establishes a new technology platform for multi-terminal traveling wave fault location in complicated power systems. In this paper, mu...

Authors: Feng Deng, Xiangjun Zeng and Lanlan Pan

Development approach of a programmable and open software package for power system frequency response calculation

Dynamic behaviour of frequency is crucial for power system operation and control. Several frequency response models have been proposed to reveal frequency dynamics from different aspects. A comprehensive softw...

Authors: Yuzheng Xie, Hengxu Zhang, Changgang Li and Huadong Sun

Review on application and comparison of metaheuristic techniques to multi-area economic dispatch problem

This paper presents both application and comparison of the metaheuristic techniques to multi-area economic dispatch (MAED) problem with tie line constraints considering transmission losses, multiple fuels, val...

Authors: Jagat Kishore Pattanaik, Mousumi Basu and Deba Prasad Dash

Experimental studies on impedance based fault location for long transmission lines

In long transmission lines, the charging current caused by the shunt capacitance decreases the accuracy in impedance based fault location. To improve the accuracy of fault location, this paper presents a novel...

Authors: Saeed Roostaee, Mini S. Thomas and Shabana Mehfuz

Novel transient-energy-based directional pilot protection method for HVDC line

This paper proposes a novel directional pilot protection method based on the transient energy for bipolar HVDC line. Supposing the positive direction of current is from DC bus to the DC line, in the case of an...

Authors: Guibin Zou, Qiang Huang, Shenglan Song, Bingbing Tong and Houlei Gao

A novel PLC channel modeling method and channel characteristic analysis of a smart distribution grid

Power line carrier (PLC) technology plays an increasingly important role in the realization of cost-effective communication in a smart distribution grid. No current channel modeling method is universally appli...

Authors: Jian Le, Cao Wang, Wu Zhou, Yong-yan Liu and Wei Cai

Short-term wind power forecasting using a double-stage hierarchical ANFIS approach for energy management in microgrids

Determination of the output power of wind generators is always associated with some uncertainties due to wind speed and other weather parameters variation, and accurate short-term forecasts are essential for t...

Authors: Dehua Zheng, Abinet Tesfaye Eseye, Jianhua Zhang and Han Li

Optimal energy management for industrial microgrids with high-penetration renewables

This paper presents a day-ahead optimal energy management strategy for economic operation of industrial microgrids with high-penetration renewables under both isolated and grid-connected operation modes. The a...

Authors: Han Li, Abinet Tesfaye Eseye, Jianhua Zhang and Dehua Zheng

Modeling and simulation of air-gapped current transformer based on Preisach Theory

Current Transformer (CT) modeling, by which CT’s characteristics can be studied has a significant importance in CT selection and design. In spite of numerous studies about closed-core CT model, only a few work...

Authors: Ya Hui Wu, Xin Zhou Dong and Sohrab Mirsaeidi

A new coordinated backup protection scheme for distribution network containing distributed generation

This paper proposes a new backup protection scheme, named coordinated backup protection (CBP) scheme, for distribution networks containing distributed generation. The proposed protection scheme takes into acco...

Authors: Jinghan He, Lin Liu, Fanfan Ding, Changcheng Li and Dahai Zhang

Detection and classification of multiple power signal patterns with Volterra series and interval type-2 fuzzy logic system

The paper deals with the application of Volterra bound Interval type −2 fuzzy logic techniques in power quality assessment. This work proposes a new layout for detection, localization and classification of var...

Authors: Rahul, Rajiv Kapoor and M. M. Tripathi

A positive-sequence current based directional relaying approach for CCVT subsidence transient condition

In this work, a directional relaying algorithm is proposed for transmission line to prevent relay maloperation during coupling capacitor voltage transformer (CCVT) subsidence transient. The effect of CCVT subs...

Authors: Monalisa Biswal and Sandeep Biswal

Optimal economic operation of isolated community microgrid incorporating temperature controlling devices

With the increasing connection of controllable devices to isolated community microgrid, an economic operation model of isolated community microgrid based on the temperature regulation characteristics of temper...

Authors: Bo Hu, He Wang and Sen Yao

Active power based distance protection scheme in the presence of series compensators

Flexible ac transmission system (FACTS) controllers, especially the series-FACTS controllers, affect the operation of distance relays and can lead to the relays under/over-reaching. This paper aims to demonstr...

Authors: Amir Ghorbani, Seyed Yaser Ebrahimi and Morteza Ghorbani

An enhanced cascading failure model integrating data mining technique

An enhanced cascading failure model integrating data mining technique is proposed in this paper. In order to better simulate the process of cascading failure propagation and further analyze the relationship be...

Authors: Qiming Sun, Libao Shi, Yixin Ni, Dajun Si and Jizhong Zhu

RETRACTED ARTICLE: An improved under frequency load shedding strategy based on dynamic power flow tracing

Under frequency load shedding is an effective approach to maintain or restore the steady-state operation of the power system when frequency accidents occur. An improved under frequency load shedding strategy b...

Authors: Shun Li, Qingfen Liao, Dichen Liu and Bingcheng Cen

Optimization of photovoltaic power system: a comparative study

This paper presents a comparative study of P&O, fuzzy P&O and BPSO fuzzy P&O control methods by using MATLAB software for optimizing the power output of the solar PV grid array. The voltage, power output and t...

Authors: Vishal Dabra, Krishan Kumar Paliwal, Pardeep Sharma and Narender Kumar

Opposition-based differential evolution for hydrothermal power system

This paper presents opposition-based differential evolution to determine the optimal hourly schedule of power generation in a hydrothermal system. Differential evolution (DE) is a population-based stochastic p...

Authors: Jagat Kishore Pattanaik, Mousumi Basu and Deba Prasad Dash

Least square and Kalman based methods for dynamic phasor estimation: a review

The characterization of sinusoidal signals with time varying amplitude and phase is useful and applicable for many fields. Therefore several algorithms have been suggested to estimate main aspects of these sig...

Authors: Jalal Khodaparast and Mojtaba Khederzadeh

Protection of large partitioned MTDC Networks Using DC-DC converters and circuit breakers

This paper proposes a DC fault protection strategy for large multi-terminal HVDC (MTDC) network where MMC based DC-DC converter is configured at strategic locations to allow the large MTDC network to be operat...

Authors: Md Habibur Rahman, Lie Xu and Liangzhong Yao

Studies on the active SISFCL and its impact on the distance protection of the EHV transmission line

The active saturated iron-core superconductive fault current limiter (SISFCL) is a good choice to decrease fault current. This paper introduced the principles and impedance characteristic of the active SISFCL....

Authors: Chao Li, Bin Li, Fengrui Guo, Jianzhao Geng, Xiuchang Zhang and Tim Coombs

Integrated protection based on multi-frequency domain information for UHV half-wavelength AC transmission line

Half-wavelength AC Transmission (HWACT) can improve capability of AC transmission significantly. According to the basic principle of HWACT, the electromagnetic transient model of HWACT is built to analyze the ...

Authors: Qingping Wang, Zhiqian Bo, Xiaowei Ma, Ming Zhang, Yingke Zhao, Yi Zhu and Lin Wang

Adaptive concentric power swing blocker

The main purpose of power swing blocking is to distinguish faults from power swings. However, the faults occur during a power swing should be detected and cleared promptly. This paper proposes an adaptive conc...

Authors: Jalal Khodaparast and Mojtaba Khederzadeh

ANN based directional relaying scheme for protection of Korba-Bhilai transmission line of Chhattisgarh state

As it is crucial to protect the transmission line from inevitable faults consequences, intelligent scheme must be employed for immediate fault detection and classification. The application of Artificial Neural...

Authors: Anamika Yadav, Yajnaseni Dash and V. Ashok

New development in relay protection for smart grid

This series of papers report on relay protection strategies that satisfy the demands of a strong smart grid. These strategies include ultra-high-speed transient-based fault discrimination, new co-ordination pr...

Authors: Baohui Zhang, Zhiguo Hao and Zhiqian Bo

Development and research on integrated protection system based on redundant information analysis

Facing the growth of energy demand and the worldwide interests in renewable energy sources, smart grid has been proposed in order to accommodate the needs of power grid development. In China, digital substatio...

Authors: Jinghan He, Lin Liu, Wenli Li and Ming Zhang

The research and the development of the wide area relaying protection based on fault element identification

The urgent problem of the relaying protection in the modern AC/DC hybrid connected grid and the development of the wide area communication, the information process and the intelligent technology powerfully pro...

Authors: Xianggen Yin, Zhe Zhang, Zhenxing Li, Xuanwei Qi, Wenbin Cao and Qian Guo

Cost reduction of a hybrid energy storage system considering correlation between wind and PV power

A hybrid energy storage system (HESS) plays an important role in balancing the cost with the performance in terms of stabilizing the fluctuant power of wind farms and photovoltaic (PV) stations. To further bri...

Authors: Lin Feng, Jingning Zhang, Guojie Li and Bangling Zhang

An optimized compensation strategy of DVR for micro-grid voltage sag

This paper uses a dynamic voltage restorer (DVR) to improve the voltage quality from voltage sags. It is difficult to satisfy various of compensation quality and time of the voltage sag by using single compens...

Authors: Zhengming Li, Wenwen Li and Tianhong Pan

Research on fault diagnosis for MMC-HVDC Systems

With the development of flexible HVDC technology, the fault diagnosis of MMC-HVDC becomes a new research direction.

Authors: Zhiqing Yao, Qun Zhang, Peng Chen and Qian Zhao

A diagnostic method for distribution networks based on power supply safety standards

In order to overcome the shortages of diagnostic method for distribution networks considering the reliability assessment, this paper proposed a method based on power supply safety standards. It profoundly anal...

Authors: Junhui Huang, Shaoyun Ge, Jun Han, Hu Li, Xiaomin Zhou, Hong Liu, Bo Wang and Zhengfang Chen

Control principles of micro-source inverters used in microgrid

Since micro-sources are mostly interfaced to microgrid by power inverters, this paper gives an insight of the control methods of the micro-source inverters by reviewing some recent documents. Firstly, the basi...

Authors: Wenming Guo and Longhua Mu

Optimal scheduling strategy for virtual power plants based on credibility theory

The virtual power plant (VPP) is a new and efficient solution to manage the integration of distributed energy resources (DERs) into the power system. Considering the unpredictable output of stochastic DERs, co...

Authors: Qian Ai, Songli Fan and Longjian Piao

Short-term wind power prediction based on extreme learning machine with error correction

Large-scale integration of wind generation brings great challenges to the secure operation of the power systems due to the intermittence nature of wind. The fluctuation of the wind generation has a great impac...

Authors: Zhi Li, Lin Ye, Yongning Zhao, Xuri Song, Jingzhu Teng and Jingxin Jin