Articles

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

DC microgrids (DCMGs) integrate and coordinate various DC distribution generation units including various renewable energy sources and battery storage systems, and have been used in satellites, the Internation...

Authors: Sarah Ansari, Jing Zhang and Rajat Emanuel Singh

DC offset rejection in a frequency-fixed second-order generalized integrator-based phase-locked loop for single-phase grid-connected applications

Fast and accurate monitoring of the phase, amplitude, and frequency of the grid voltage is essential for single-phase grid-connected converters. The presence of DC offset in the grid voltage is detrimental to ...

Authors: Issam A. Smadi and Bayan H. Bany Fawaz

A robust model-free controller for a three-phase grid-connected photovoltaic system based on ultra-local model

In this paper, a robust model-free controller for a grid-connected photovoltaic (PV) system is designed. The system consists of a PV generator connected to a three-phase grid by a DC/AC converter. The control ...

Authors: Ahsene Boubakir, Sid-Ahmed Touil, Salim Labiod and Nasserdine Boudjerda

Maximum production point tracking method for a solar-boosted biogas energy generation system

Low biogas yield in cold climates has brought great challenges in terms of the flexibility and resilience of biogas energy systems. This paper proposes a maximum production point tracking method for a solar-bo...

Authors: Jialin Chen, Ruijiang Yang, Da Xu, Bin Zhou and Yifang Jin

Effective damping of local low frequency oscillations in power systems integrated with bulk PV generation

High penetration of renewable sources into conventional power systems results in reduction of system inertia and noticeable low-frequency oscillations (LFOs) in the rotor speed of synchronous generators. In th...

Authors: Ahmed Hesham Abd El-Kareem, Mohamed Abd Elhameed and Mahmoud M. Elkholy

A novel out of step relaying algorithm based on wavelet transform and a deep learning machine model

Out-of-step protection of one or a group of synchronous generators is unreliable in a power system which has significant renewable power penetration. In this work, an innovative out-of-step protection algorith...

Authors: Jigneshkumar Pramodbhai Desai and Vijay Hiralal Makwana

Design of protection and control scheme for hybrid nanogrid

Nanogrid is “The new ray of hope” for people living in remote isolated locations as well as where power supply reliability is poor. A nanogrid is a small power capacity distribution system with the ability to ...

Authors: Sachin P. Jolhe, Gunwant A. Dhomane and Minal D. Karalkar

A weighted voltage model predictive control method for a virtual synchronous generator with enhanced parameter robustness

To address the problem of insufficient system inertia and improve the power quality of grid-connected inverters, and to enhance the stability of the power system, a method to control a virtual synchronous gene...

Authors: Leilei Guo, Zhiye Xu, Nan Jin, Yanyan Li and Wei Wang

System bias correction of short-term hub-height wind forecasts using the Kalman filter

Wind energy is a fluctuating source for power systems, which poses challenges to grid planning for the wind power industry. To improve the short-term wind forecasts at turbine height, the bias correction appro...

Authors: Jingjing Xu, Ziniu Xiao, Zhaohui Lin and Ming Li

Superconducting energy storage technology-based synthetic inertia system control to enhance frequency dynamic performance in microgrids with high renewable penetration

With high penetration of renewable energy sources (RESs) in modern power systems, system frequency becomes more prone to fluctuation as RESs do not naturally have inertial properties. A conventional energy sto...

Authors: Gaber Magdy, Abualkasim Bakeer and Mohammed Alhasheem

Small signal stability enhancement of a large scale power system using a bio-inspired whale optimization algorithm

A whale optimization algorithm (WOA)-based power system stabilizer (PSS) design methodology on modified single machine infinite bus (MSMIB) and multi-machine systems to enhance the small-signal stability (SSS)...

Authors: Butti Dasu, Sivakumar Mangipudi and Srinivasarao Rayapudi

Comparison between PI-DTC-SPWM and fuzzy logic for a sensorless asynchronous motor drive

Currently, asynchronous cage motors are among the most commonly requested machines accentuated by their extension to the field of electric vehicles. Therefore, the development of robust and sophisticated contr...

Authors: Soukaina El Daoudi and Loubna Lazrak

Shapley value cooperative game theory-based locational marginal price computation for loss and emission reduction

An iterative method based on Shapley Value Cooperative Game Theory is proposed for the calculation of local marginal price (LMP) for each Distributed Generator (DG) bus on a network. The LMP value is determine...

Authors: Venkataramana Veeramsetty

Model predictive control of grid-connected PV power generation system considering optimal MPPT control of PV modules

Because of system constraints caused by the external environment and grid faults, the conventional maximum power point tracking (MPPT) and inverter control methods of a PV power generation system cannot achiev...

Authors: Yingying Zhao, Aimin An, Yifan Xu, Qianqian Wang and Minmin Wang

Proposed framework for blockchain technology in a decentralised energy network

The integration of distributed renewable energy sources into the conventional power grid has become a hot research topic, all part of attempts to reduce greenhouse gas emission. There are many distributed rene...

Authors: Oliver Dzobo, Bessie Malila and Lindokhuhle Sithole

Stochastic maximum power point tracking of photovoltaic energy system under partial shading conditions

A large portion of the available power generation of a photovoltaic (PV) array could be wasted due to partial shading, temperature and irradiance effects, which create current/voltage imbalance between the PV ...

Authors: Bushra Iqbal, Ali Nasir and Ali Faisal Murtaza

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