Hashim Hasabelrasul

Hebei Agricultural University

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Xiangwu Yan

North China Electric Power University

Abuzaid Saeed Gadalla

Elsheikh Abdallah Elbadri University

Zhenjiang Cai

Hebei Agricultural University

Xuesong Suo

Hebei Agricultural University

Sara Yahia Altahir

North China Electric Power University

Lei Sun

Hebei University of Economics and Business

Mohaned Kamal

Imad Matraji

Great Wall Motors (China)

Lei Sun

Hong Kong Polytechnic University

Cooperative Institutions

Hebei Agricultural University

Hebei University

North China Electric Power University

Hebei University of Economics and Business

Elsheikh Abdallah Elbadri University

Great Wall Motors (China)

ORCID

Khalifa University of Science and Technology

University of the Western Cape

Université de technologie de belfort-montbéliard

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Combined power decoupling strategy for inverters in low-voltage microgrids

IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society (2017)

Sara Yahia Altahir Xiangwu Yan Hashim Hasabelrasul

The high R/X ratio of distributed lines in low voltage microgrid causes the coupling between the active and reactive power control. Forcing the output impedance to achieve the decoupling through additional virtual inductor impedance loop heavily causes the voltage amplitude drop at the point of common coupling. Such voltage drop deteriorates the microgrid voltage stability. To avoid the problem of the voltage drop of the traditional method, the virtual complex impedance with virtual negative resistor and virtual inductor is introduced recently. The effect of the line resistance can be counteracted by controlling the virtual negative resistor, thus the system presents mainly inductive impedance. However, it is founded that, the grid formed inverter system works under the critical stability and it is easily to pull into instability if the line resistance drifts to smaller value than the value of the virtual negative resistor. This case is very likely to happen in practical applications due to the temperature variation. To increase the stability margin of the system, this paper introduces a new method to control the inverters. Simulation results are presented to show that the new control scheme can implement the power decoupling and maintain a stable operation even for a large value of the line resistance drifts.

Voltage drop

Decoupling (probability)

Microgrid

10.1109/iecon.2017.8216164

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Citations (2)

Two-Stage Converter Standalone PV-Battery System Based on VSG Control

IEEE Access (2022)

Hashim Hasabelrasul Zhenjiang Cai Lei Sun Xuesong Suo Imad Matraji

Standalone solar PV systems have emerged as potential alternatives to electricity problems in areas where a grid is unavailable. Obtaining full power from a photoelectric system, DC-DC inverter, DC-AC converter, and control system presents great difficulties when building these devices. A standalone two-stage approach is introduced in this work with a boost converter followed by an inverter and a battery with a bidirectional converter. In this paper, a novel virtual synchronous generator (VSG) controller is designed and implemented to adjust the inverter output. The VSG element and the maximum power point tracking (MPPT) used in this study serve the following purposes: to adjust the inverter output and to realize the maximum power of the PV scheme. The new control strategy design was evaluated and validated using extensive MATLAB simulations under different scenarios, including load variations. The system output was evaluated using extensive MATLAB simulations. A hands-on experiment was conducted for the VSG using console testing. Due to the lack of laboratory equipment, we could not experiment with the entire system.

Maximum power principle

10.1109/access.2022.3165664

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Citations (32)

Power and energy balancing for casacaded H-bridge battery storage system based on virtual synchronous generators

Hashim Hasabelrasul Xiangwu Yan Abuzaid Saeed Gadalla

The battery storage system is a necessary enabling device of the smart grid because it helps the grid connection of renewable energy resources. This paper describes a 6.6kV cascade H bridge multilevel inverter battery storage system with a focus on a virtual synchronous generator control method for increase load power in different steps load change. Also the power and energy balance between inter-phase and inter-bridge. The system is intended for megawatt (MW) scale of power, as well as for improving the power quality and efficiency of power distribution systems. Simulation for the system is carried out in MATLAB/SIMULINK and the simulation results are presented.

Grid connection

10.1109/iciea.2018.8397884

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Citations (1)

State-of-charge balancing control strategy for battery energy storage systems based on a modern cascaded multilevel PWM converter

Abuzaid Saeed Gadalla Xiangwu Yan Hashim Hasabelrasul

According to the development of the electric energy storage systems, found that the battery energy storage systems have become a very important factor in the process of system stability and optimal operation. Modern multilevel converters, namely cascaded H-bridge multilevel pulse width modulation (CHBM-PWM) converters have been attracting the attention of researchers in the world, in addition to the development for the industry in the modern decade for medium voltage/high power applications. A 14.14kV, 1MW, 1000Ah system combine a three-phase CHBM-PWM converter with forty-five Li (Lithium)-ion battery units is designed in this paper. The designed system can directly connect to medium/high voltage bus without transformer and realize better output harmonics performance under lower switching frequency. The whole control system is composed of state-of-charge (SOC) balancing control and active power control. First one is necessary for efficient utilization of battery energy to manage the percentage of SOC to avoid the excessive charging and discharging while the second is required for producing a balanced three phase voltage. Controller efficiency is verified by using MATLAB/SIMULINK to present results.

State of charge

10.1109/cpe.2018.8372534

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Citations (6)

Active Power Analysis for the Battery Energy Storage Systems Based on a Modern Cascaded Multilevel Converter

2019 IEEE International Conference on Energy Internet (ICEI) (2018)

Abuzaid Saeed Gadalla Xiangwu Yan Hashim Hasabelrasul

battery Energy Storage technology for power system becomes very important to provide better integration of renewable sources into the system. Meanwhile, to increase the efficiency of the power plant, and as well as improve the reliability of electricity supply. The control strategy of the battery energy storage system (BESS) Based on a cascade H-Bridge multilevel converter (CHB-MLC) has been received wide attention since it was proposed. This paper describes a 14.14 kV, 2MW, 1000Ah system with forty-five Li (Lithium)-ion battery units. The system based on a cascaded H-bridge multilevel pulse width modulation (PWM) converter with star configuration focusing on the active power balancing of individual converter cells. The whole control system consists of active power control and state of charge (SOC) balancing control (inter-phase SOC balancing control and phase-phase SOC balancing control), the first one is required to produce the three-phase balanced line to line voltage while the second one is indispensable for effective utilization of the battery energy to manage the SOC value for each battery to avoid the over-charge/over-discharge. The simulation results are obtained using MATLAB/Simulink, the results show the good operational performance of the BESS based on CHB-MLI. Hence, we can conclude that the validity and effectiveness of the control strategy are verified.

State of charge

H bridge

10.1109/icei.2018.00028

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Citations (7)

Comparison of Multicarrier PWM Techniques for Cascaded H-Bridge Multilevel Inverter

International Journal of Power Electronics and Drive Systems/International Journal of Electrical and Computer Engineering (2017)

Hashim Hasabelrasul Xiangwu Yan

<p>One of the preferred choices of electronic power conversion for high power applications are multilevel inverters topologies finding increased attention in industry. Cascaded H-Bridge multilevel inverter is one of these topologies reaching the higher output voltage, power level and higher reliability due to its modular topology. Level Shifted Carrier Pulse Width Modulation (LSCPWM) and Phase Shifted Carrier Pulse Width Modulation are used generally for switching cascaded H-bridge (CHB) multilevel inverters. This paper compares LSCPWM and PSCPWM in terms of total harmonics distortion (THD) and output voltage among inverter cells. Simulation for 21-level CHB inverter is carried out in MATLAB/SIMULINK and simulation results are presented.</p>

H bridge

Modulation (music)

10.11591/ijpeds.v8.i2.pp861-868

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Citations (10)

Evaluating the capacity of power and energy balance for cascaded H‐bridge multilevel inverter using different PWM techniques

The Journal of Engineering (2017)

Abuzaid Saeed Gadalla Xiangwu Yan Sara Yahia Altahir Hashim Hasabelrasul

Among the different multilevel topologies for inverters, cascaded H-bridge multilevel topology has been a good solution for high-power medium-voltage applications because of its modularity structure, voltage balancing, separated DC sources, harmonics reduction, reliability and lower stresses on switching devices. The most widely used pulse width modulation (PWM) techniques for cascaded H-bridge multilevel inverter are known as phase shifted and level shifted. This study presents a comparison of power and energy distribution (inter-phase and inter-bridge power and energy) of three-phase cascaded H-bridge multilevel inverter for the phase-shifted and the level-shifted carrier PWM (phase disposition). A detailed comparison of different PWM techniques with reference to total harmonic distortion in the output voltages, both cases using a filter and without filter are presented also in this study. Simulation for 11-level cascaded H-bridge inverter is carried out in MATLAB/SIMULINK and simulation results are presented.

H bridge

Three-phase

Modulation (music)

10.1049/joe.2017.0624

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Citations (27)

Practical Application for Reactor Installation to Reduce Harmonics Resonance of Steel Factory

Journal of Physics Conference Series (2022)

Hashim Hasabelrasul Zhenjiang Cai Mohaned Kamal Lei Sun Xuesong Suo

Abstract Harmonicis one of the problems in the power system. It needs more focus due to the number of electrical devices that generate a considerable amount of harmonics. In this paper, a reactor was designed, installation and implementation for a steel factory. The installation objective is to solve harmonic resonance and reduce billing penalties for reactive power KVA by the electric power utility—technical analysis applied to the factory main panel. The ETAP software is used to discover the problem and evaluate the solution results. The power flow and harmonics analysis of an 11 kV system is modeled and implemented. Finally, the proper reactor was calculated and installation as practical to solve the harmonic and economic issues.

Factory (object-oriented programming)

Harmonic

Harmonic Analysis

10.1088/1742-6596/2218/1/012051

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Citations (3)

Power conditioning system control strategy for cascaded H‐bridge converter battery energy storage system

The Journal of Engineering (2018)

Hashim Hasabelrasul Xiangwu Yan Abuzaid Saeed Gadalla

State of charge

Power conditioner

10.1049/joe.2018.8380

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Citations (9)

MW-scale medium voltage cascaded H-bridge battery storage system based on virtual synchronous generators

Hashim Hasabelrasul Xiangwu Yan Abuzaid Saeed Gadalla

In this paper the virtual synchronous generator control is introduced to MW-Scale Medium Voltage power system. The virtual synchronous generator with its inertia and damping features can be considered as an improvement for the communication-less control method (droop control). The MW-Scale Medium Voltage is generally preferable for its high power density, reduced current level, and reduced losses and costs. The control strategy is based on the concept of VSG control and the phase shifted carrier pulse width modulation (PSCPWM) is used for switching a cascaded H-bridge (CHB) multilevel inverter in order to produce the desired voltage and power level. Frequency and voltage droop coefficients for VSG control have been set to adjust frequency and voltage control respectively. Different rotating inertia and damping factor set values shows the system Frequency response. The system was subjected to increase in the active and reactive load power in different steps change. The results indicate good local performances. This coordinated control scheme shows significant improvement in system performance, particularly in frequent load step changing. Simulation for the system is carried out in MATLAB/SIMULINK and simulation results are presented.

H bridge

10.1109/tencon.2017.8227877

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Citations (4)