Articles

Equivalent model of multi-type distributed generators under faults with fast-iterative calculation method based on improved PSO algorithm

There are various types of distributed generators (DGs) with different grid integration strategies. The transient characteristics of the fault currents provided by the DGs are different to those of conventiona...

Authors: Puyu Wang, Jinyuan Song, Fangyu Liang, Fang Shi, Xiangping Kong, Guangen Xie, Xiao-Ping Zhang and Xinxin Gu

Critical peak rebate strategy and application to demand response

Time-of-use (TOU) pricing strategy is an important component of demand-side management (DSM), but the cost of supplying power during critical peak periods remains high under TOU prices. This affects power syst...

Authors: Hejun Yang, Xinyu Zhang, Yinghao Ma and Dabo Zhang

A power fluctuation evaluation method of PV plants based on RankBoost ranking

Fluctuation evaluation is an important task in promoting the accommodation of photovoltaic (PV) power generation. This paper proposes an evaluation method to quantify the power fluctuation of PV plants. This c...

Authors: Weiyi Xia, Zhouyang Ren, Hui Li and Bo Hu

Hybrid intelligence approach for multi-load level reactive power planning using VAR compensator in power transmission network

This paper formulates and solves a techno-economic planning problem of reactive power (VAR) in power transmission systems under loadings. The objective of the proposed research work is to minimize the combinat...

Authors: Nihar Karmakar and Biplab Bhattacharyya

High performance decoupled active and reactive power control for three-phase grid-tied inverters using model predictive control

Finite control set-model predictive control (FCS-MPC) is employed in this paper to control the operation of a three-phase grid-connected string inverter based on a direct PQ control scheme. The main objective ...

Authors: Mohamed Azab

Incorporating microgrids coupling with utilization of flexible switching to enhance self-healing ability of electric distribution systems

Electric distribution networks have to deal with issues caused by natural disasters. These problems possess unique characteristics, and their severity can make load restoration methods impotent. One solution t...

Authors: Saeed Mousavizadeh, Arman Alahyari, Seyed Reza Movahhed Ghodsinya and Mahmoud-Reza Haghifam

Inter-cluster voltage balancing control of a delta connected modular multilevel cascaded converter under unbalanced grid voltage

A new inter-cluster DC capacitor voltage balancing scheme for a delta connected modular multilevel cascaded converter (MMCC)-based static synchronous compensator (STATCOM) is presented. A detailed power flow a...

Authors: Oghenewvogaga J. K. Oghorada, Li Zhang, Huang Han, Ayodele B. Esan and Mingxuan Mao

Uncertainty modeling of wind power frequency regulation potential considering distributed characteristics of forecast errors

Large-scale integration of wind power generation decreases the equivalent inertia of a power system, and thus makes frequency stability control challenging. However, given the irregular, nonlinear, and non-sta...

Authors: Cheng Yan, Yi Tang, Jianfeng Dai, Chenggen Wang and Shengjun Wu

Damping forced oscillations in power system via interline power flow controller with additional repetitive control

With the continuous expansion of power systems and the application of power electronic equipment, forced oscillation has become one of the key problems in terms of system safety and stability. In this paper, a...

Authors: Shirui Feng, Xi Wu, Zhenquan Wang, Tao Niu and Qiong Chen

A novel fault section locating method based on distance matching degree in distribution network

Fault section location of a single-phase grounding fault is affected by the neutral grounding mode of the system, transition resistance, and the blind zone. A fault section locating method based on an amplitud...

Authors: Zhenxing Li, Jialing Wan, Pengfei Wang, Hanli Weng and Zhenhua Li

Linearization threshold condition and stability analysis of a stochastic dynamic model of one-machine infinite-bus (OMIB) power systems

With the increase in the proportion of multiple renewable energy sources, power electronics equipment and new loads, power systems are gradually evolving towards the integration of multi-energy, multi-network ...

Authors: Lijuan Li, Yongdong Chen, Bin Zhou, Hongliang Liu and Yongfei Liu

Super twisting sliding mode approach applied to voltage orientated control of a stand-alone induction generator

To enhance the robustness and dynamic performance of a self-excited induction generator (SEIG) used in a stand-alone wind energy system (WES), a virtual flux oriented control (VFOC) based on nonlinear super-tw...

Authors: Yacine Bendjeddou, Abdelhakim Deboucha, Larafi Bentouhami, Elkheir Merabet and Rachid Abdessemed

Application and development of ground source heat pump technology in China

Ground source heat pumps (GSHPs) are one of the renewable energy technologies with features of high efficiency, energy saving, economic feasibility and environmental protection. In China, GSHPs have been widel...

Authors: Chaofan Song, Yang Li, Taha Rajeh, Ling Ma, Jun Zhao and Wenjia Li

Correction to: Grasshopper optimization algorithm optimized multistage controller for automatic generation control of a power system with FACTS devices

Authors: Pratap Chandra Nayak, Ramesh Chandra Prusty and Sidhartha Panda

Comprehensive power swing detection by current signal modeling and prediction using the GMDH method

Power swing is an undesirable variation in power flow. This can be caused by large disturbances in demand load, switching, disconnection or reclosing lines. This phenomenon may enter the zones of distance rela...

Authors: Seyed Amir Hosseini, Behrooz Taheri, Hossein Askarian Abyaneh and Farzad Razavi

Integration of PV system with SMES based on model predictive control for utility grid reliability improvement

This paper describes the integration of a photovoltaic (PV) renewable energy source with a superconducting magnetic energy storage (SMES) system. The integrated system can improve the voltage stability of the ...

Authors: Abualkasim Bakeer, Hossam S. Salama and Istvan Vokony

Research on power control strategy of household-level electric power router based on hybrid energy storage droop control

In the light of user-side energy power control requirements, a power control strategy for a household-level EPR based on HES droop control is proposed, focusing on the on-grid, off-grid and seamless switching ...

Authors: Kun Huang, Yanman Li, Xiaoyan Zhang, Lei Liu, Yanbin Zhu and Xin Meng

Electrical control strategy for an ocean energy conversion system

Globally abundant wave energy for power generation attracts ever increasing attention. Because of non-linear dynamics and potential uncertainties in ocean energy conversion systems, generation productivity nee...

Authors: Muhammad Noman, Guojie Li, Keyou Wang and Bei Han

Single and multi-area multi-fuel economic dispatch using a fuzzified squirrel search algorithm

Multi-Area Multi-Fuel Economic Dispatch (MAMFED) aims to allocate the best generation schedule in each area and to offer the best power transfers between different areas by minimizing the objective functions a...

Authors: V. Ponnuvel Sakthivel and P. Duraisamy Sathya

Reliability sensitivity of wind power system considering correlation of forecast errors based on multivariate NSTPNT method

The impact of wind power forecast errors (WPFEs) on power system reliability can be quantified by a sensitivity model, which helps to determine the importance of different wind farms. However, the unknown dist...

Authors: Wangchao Dong and Shenghu Li

Communication infrastructure for situational awareness enhancement in WAMS with optimal PMU placement

Real time monitoring and control of a modern power system has achieved significant development since the incorporation of the phasor measurement unit (PMU). Due to the time-synchronized capabilities, PMU has i...

Authors: Bhargav Appasani, Amitkumar Vidyakant Jha, Sunil Kumar Mishra and Abu Nasar Ghazali

Grasshopper optimization algorithm optimized multistage controller for automatic generation control of a power system with FACTS devices

This paper uses a Grasshopper Optimization Algorithm (GOA) optimized PDF plus (1 + PI) controller for Automatic generation control (AGC) of a power system with Flexible AC Transmission system (FACTS) devices. ...

Authors: Pratap Chandra Nayak, Ramesh Chandra Prusty and Sidhartha Panda

Impact of communication time delays on combined LFC and AVR of a multi-area hybrid system with IPFC-RFBs coordinated control strategy

In this paper, the impact of communication time delays (CTDs) on combined load frequency control (LFC) and automatic voltage regulation (AVR) of a multi-area system with hybrid generation units is addressed. I...

Authors: C H. Naga Sai Kalyan and G. Sambasiva Rao

Sliding mode controller design for frequency regulation in an interconnected power system

In this paper, a Sliding mode controller design method for frequency regulation in an interconnected power system is presented. A sliding surface having four parameters has been selected for the load frequency...

Authors: Anand Kumar, Md Nishat Anwar and Shekhar Kumar

An integrated multi-energy flow calculation method for electricity-gas-thermal integrated energy systems

The modeling and multi-energy flow calculation of an integrated energy system (IES) are the bases of its operation and planning. This paper establishes the models of various energy sub-systems and the coupling...

Authors: Mengting Zhu, Chengsi Xu, Shufeng Dong, Kunjie Tang and Chenghong Gu

Operational optimization of a building-level integrated energy system considering additional potential benefits of energy storage

As a key component of an integrated energy system (IES), energy storage can effectively alleviate the problem of the times between energy production and consumption. Exploiting the benefits of energy storage c...

Authors: Sai Liu, Cheng Zhou, Haomin Guo, Qingxin Shi, Tiancheng E. Song, Ian Schomer and Yu Liu

A critical review of the integration of renewable energy sources with various technologies

Wind power, solar power and water power are technologies that can be used as the main sources of renewable energy so that the target of decarbonisation in the energy sector can be achieved. However, when compa...

Authors: Erdiwansyah, Mahidin, H. Husin, Nasaruddin, M. Zaki and Muhibbuddin

Application of a simplified Grey Wolf optimization technique for adaptive fuzzy PID controller design for frequency regulation of a distributed power generation system

A Simplified Grey Wolf Optimizer (SGWO) is suggested for resolving optimization tasks. The simplification in the original Grey Wolf Optimizer (GWO) method is introduced by ignoring the worst category wolves wh...

Authors: Sasmita Padhy and Sidhartha Panda

A comprehensive review of DC fault protection methods in HVDC transmission systems

High voltage direct current (HVDC) transmission is an economical option for transmitting a large amount of power over long distances. Initially, HVDC was developed using thyristor-based current source converte...

Authors: Mohan Muniappan

Improving low-voltage ride-through capability of a multimegawatt DFIG based wind turbine under grid faults

Large integration of doubly-fed induction generator (DFIG) based wind turbines (WTs) into power networks can have significant consequences for power system operation and the quality of the energy supplied due ...

Authors: Mohamed Nadour, Ahmed Essadki and Tamou Nasser

The legal sustainability of energy substitution in Nigeria’s electric power sector: renewable energy as alternative

Non-renewable fuel sources have been the predominant energy sources and a significant source of foreign exchange income for Nigeria, while at the same time there is a severe problem of electricity inconsistenc...

Authors: Olusola Joshua Olujobi

Impact of the penetration of distributed generation on optimal reactive power dispatch

Optimal reactive power dispatch (ORPD) is a complex and non-linear problem, and is one of the sub-problems of optimal power flow (OPF) in a power system. ORPD is formulated as a single-objective problem to min...

Authors: Tanmay Das, Ranjit Roy and Kamal Krishna Mandal

A novel method for locating the source of sustained oscillation in power system using synchrophasors data

Large interconnected power systems are usually subjected to natural oscillation (NO) and forced oscillation (FO). NO occurs due to system transient response and is characterized by several oscillation modes, w...

Authors: Mohd Zuhaib, Mohd Rihan and Mohd Tayyab Saeed

A fast boundary protection for an AC transmission line connected to an LCC-HVDC inverter station

For AC transmission lines connected to an LCC-HVDC inverter station, commutation failure can lead to the wrong operation of traditional protection. To solve the problem, this paper proposes a fast protection s...

Authors: Zhen Liu, Houlei Gao, Sibei Luo, Le Zhao and Yuyao Feng

Weak bus-constrained PMU placement for complete observability of a connected power network considering voltage stability indices

Phasor measurement units (PMUs) are preferred for installation at weak buses in a power network. Therefore, the weak buses need to be located and the strategic locations of PMUs identified to ensure network ob...

Authors: Rohit Babu, Saurav Raj and Biplab Bhattacharyya

FPGA-based real-time simulation for EV station with multiple high-frequency chargers based on C-EMTP algorithm

The electric vehicle (EV) charging station is a critical part of the infrastructure for the wide adoption of EVs. Real-time simulation of an EV station plays an essential role in testing its operation under di...

Authors: Zirun Li, Jin Xu, Keyou Wang, Pan Wu and Guojie Li

Human reliability analysis in maintenance team of power transmission system protection

The requirement for reliable electrical energy supply increases continuously because of its vital role in our lives. However, events due to various factors in the power grid can cause energy supply to be inter...

Authors: Mehdi Tavakoli and Mehdi Nafar

A robust composite wide area control of a DFIG wind energy system for damping inter-area oscillations

This paper presents a novel composite wide area control of a DFIG wind energy system which combines the Robust Exact Differentiator (RED) and Discontinuous Integral (DI) control to damp out inter-area oscillat...

Authors: Ayyarao S. L. V. Tummala

Optimal load frequency control through combined state and control gain estimation for noisy measurements

Combined estimation of state and feed-back gain for optimal load frequency control is proposed. Load frequency control (LFC) addresses the problem of controlling system frequency in response to disturbance, an...

Authors: Anju G. Pillai, Elizabeth Rita Samuel and A. Unnikrishnan

A novel complex current ratio-based technique for transmission line protection

With respect to sensitivity, selectivity and speed of operation, the current differential scheme is a better way to protect transmission lines than overcurrent and distance-based schemes. However, the protecti...

Authors: Suryanarayana Gangolu and Saumendra Sarangi

Accurate prediction of different forecast horizons wind speed using a recursive radial basis function neural network

Environmental considerations have prompted the use of renewable energy resources worldwide for reduction of greenhouse gas emissions. An accurate prediction of wind speed plays a major role in environmental pl...

Authors: M. Madhiarasan

Bayesian bootstrap quantile regression for probabilistic photovoltaic power forecasting

Photovoltaic (PV) systems are widely spread across MV and LV distribution systems and the penetration of PV generation is solidly growing. Because of the uncertain nature of the solar energy resource, PV power...

Authors: Mokhtar Bozorg, Antonio Bracale, Pierluigi Caramia, Guido Carpinelli, Mauro Carpita and Pasquale De Falco

Design of a robust PID-PSS for an uncertain power system with simplified stability conditions

In a deregulated power system uncertainty exists and lack of sufficient damping can lead to Low Frequency Oscillations (LFO). The problem can be addressed using robust Power System Stabilizers (PSS). In this p...

Authors: Vijaya Lakshmi A.S.V, Ramalinga Raju Manyala and Siva Kumar Mangipudi

A review of cyber security risks of power systems: from static to dynamic false data attacks

With the rapid development of the smart grid and increasingly integrated communication networks, power grids are facing serious cyber-security problems. This paper reviews existing studies on the impact of fal...

Authors: Yan Xu

Power quality enhancement and engineering application with high permeability distributed photovoltaic access to low-voltage distribution networks in Australia

Considering power quality problems such as overvoltage and three-phase unbalance caused by high permeability distributed photovoltaic access in low-voltage distribution networks, this paper proposes a comprehe...

Authors: Ruisheng Li, Peter Wong, Kun Wang, Bin Li and Fangfang Yuan

Hybrid classifier for fault location in active distribution networks

This paper presents a fast hybrid fault location method for active distribution networks with distributed generation (DG) and microgrids. The method uses the voltage and current data from the measurement point...

Authors: Sadegh Jamali, Alireza Bahmanyar and Siavash Ranjbar

Fault line selection in cooperation with multi-mode grounding control for the floating nuclear power plant grid

The Floating nuclear power plant grid is composed of power generation, in-station power supply and external power delivery. To ensure the safety of the nuclear island, the in-station system adopts a special po...

Authors: Yikai Wang, Xin Yin, Wen Xu, Xianggen Yin, Minghao Wen and Lin Jiang

An improved MPPT control strategy based on incremental conductance algorithm

PV power production is highly dependent on environmental and weather conditions, such as solar irradiance and ambient temperature. Because of the single control condition and any change in the external environ...

Authors: Liqun Shang, Hangchen Guo and Weiwei Zhu

Sliding mode approach applied to sensorless direct torque control of cage asynchronous motor via multi-level inverter

To improve the robustness and performance of the dynamic response of a cage asynchronous motor, a direct torque control (DTC) based on sliding mode control (SMC) is adopted to replace traditional proportional-...

Authors: Soukaina El Daoudi, Loubna Lazrak and Mustapha Ait Lafkih

Stability enhancement of wind energy integrated hybrid system with the help of static synchronous compensator and symbiosis organisms search algorithm

Conventional proportional integral derivative (PID) controllers are being used in the industries for control purposes. It is very simple in design and low in cost but it has less capability to minimize the low...

Authors: Pabitra Kumar Guchhait and Abhik Banerjee