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Syed Abid Bukhari
Aston University, UK

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Chapter
Published: 01 January 2020 in Handbook of Research on Novel Practices and Current Successes in Achieving the Sustainable Development Goals
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This chapter concerns energy storage technologies. It firstly outlines two popular storage technologies, batteries and supercapacitors, while their working principles are revealed. The key issues of these two technologies, such as costs, key types, capacities, etc., are also discussed. Afterwards, a hybrid electrical energy storage (HEES) system consisting of both technologies are demonstrated where the electrical circuit is illustrated. The design of the system aims to demonstrate different characteristics of these two technologies via their charging and discharging process. A test rig is explained in detail while other components, including a load bank, an inverter, a data acquisition subsystem (both the hardware and the software) are also clarified. The experimental results are illustrated and analyzed thereafter. Also, this chapter presents several other promising technologies where their key features, pros and cons, and core applications are pointedly reviewed. The concerned storage technologies include photovoltaic (PV) systems, pumped hydro-energy storage (PHES), superconducting magnetic energy storage (SMES), gas, and other alternatives sources. The authors provide the readers with a brief insight of various energy storage technologies and the inspiration of developing a low-cost, accessible energy storage system for the reader's own purposes.

ACS Style

Syed Abid Ali Shah Bukhari; Wenping Cao; Xiangping Chen; Fayyaz Jandan; Debjani Goswami. Hybrid Electric Energy Storage and Its Dynamic Performance. Handbook of Research on Novel Practices and Current Successes in Achieving the Sustainable Development Goals 2020, 406 -437.

AMA Style

Syed Abid Ali Shah Bukhari, Wenping Cao, Xiangping Chen, Fayyaz Jandan, Debjani Goswami. Hybrid Electric Energy Storage and Its Dynamic Performance. Handbook of Research on Novel Practices and Current Successes in Achieving the Sustainable Development Goals. 2020; ():406-437.

Chicago/Turabian Style

Syed Abid Ali Shah Bukhari; Wenping Cao; Xiangping Chen; Fayyaz Jandan; Debjani Goswami. 2020. "Hybrid Electric Energy Storage and Its Dynamic Performance." Handbook of Research on Novel Practices and Current Successes in Achieving the Sustainable Development Goals , no. : 406-437.

Journal article
Published: 09 May 2019 in Energies
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The efficiency of a photovoltaic (PV) system strongly depends on the transformation process from solar energy to electricity, where maximum power point tracking (MPPT) is widely regarded as a promising technology to harvest solar energy in the first step. Furthermore, inverters are an essential part of solar power generation systems. Their performance dictates the power yield, system costs and reliable operation. This paper proposes a novel control technology combining discontinuous pulse width modulation (DPWM) and overmodulation technology to better utilize direct current (DC) electrical power and to reduce the switching losses in the electronic power devices in conversion. In order to optimize the performance of the PV inverter, the overmodulation region is refined from conventional two-level space vector pulse width modulation (SVPWM) control technology. Then, the turn-on and turn-off times of the switching devices in different modulation areas are deduced analytically. A new DPWM algorithm is proposed to achieve the full region control. An experimental platform based on a digital signal processing (DSP) controller is developed for validation purposes, after maximum power is achieved via a DC/DC converter under MPPT operation. Experimental results on a PV system show that the DPWM control algorithm lowers the harmonic distortion of the output voltage and current, as well as the switching losses. Moreover, better utilization of the DC-link voltage also improves the PV inverter performance. The developed algorithm may also be applied to other applications utilizing grid-tie power inverters.

ACS Style

Lan Li; Hao Wang; Xiangping Chen; Abid Ali Shah Bukhari; Wenping Cao; Lun Chai; Bing Li. High Efficiency Solar Power Generation with Improved Discontinuous Pulse Width Modulation (DPWM) Overmodulation Algorithms. Energies 2019, 12, 1765 .

AMA Style

Lan Li, Hao Wang, Xiangping Chen, Abid Ali Shah Bukhari, Wenping Cao, Lun Chai, Bing Li. High Efficiency Solar Power Generation with Improved Discontinuous Pulse Width Modulation (DPWM) Overmodulation Algorithms. Energies. 2019; 12 (9):1765.

Chicago/Turabian Style

Lan Li; Hao Wang; Xiangping Chen; Abid Ali Shah Bukhari; Wenping Cao; Lun Chai; Bing Li. 2019. "High Efficiency Solar Power Generation with Improved Discontinuous Pulse Width Modulation (DPWM) Overmodulation Algorithms." Energies 12, no. 9: 1765.

Journal article
Published: 12 January 2018 in Energies
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Typically, a geared drive system is used to connect an induction motor of 1500 rpm with a Raymond Pulverizer of 105 rpm in mining applications. This system suffers from low efficiency and a heavy motor drive. This paper proposes a novel design of a 75 kW, 72/48 switched reluctance motor (SRM) for a low-speed direct-drive as for mining applications. The paper is focused on the design and comparative evaluation of the proposed machine in order to replace a geared drive system whilst providing a high torque low-speed and direct-drive solution. The machine performance is studied and the switching angle configuration of the machine is also optimised. The efficiency of the whole drive system is found to be as high as 90.19%, whereas the geared induction motor drive provides only an efficiency of 59.32% under similar operating conditions. An SRM prototype was built and experimentally tested. Simulation and experimental results show that the drive system has better performance to substitute the induction motor option in mining applications.

ACS Style

Esmail Elhomdy; Guofeng Li; Jiang Liu; Syed Abid Bukhari; Wen-Ping Cao. Design and Experimental Verification of a 72/48 Switched Reluctance Motor for Low-Speed Direct-Drive Mining Applications. Energies 2018, 11, 192 .

AMA Style

Esmail Elhomdy, Guofeng Li, Jiang Liu, Syed Abid Bukhari, Wen-Ping Cao. Design and Experimental Verification of a 72/48 Switched Reluctance Motor for Low-Speed Direct-Drive Mining Applications. Energies. 2018; 11 (1):192.

Chicago/Turabian Style

Esmail Elhomdy; Guofeng Li; Jiang Liu; Syed Abid Bukhari; Wen-Ping Cao. 2018. "Design and Experimental Verification of a 72/48 Switched Reluctance Motor for Low-Speed Direct-Drive Mining Applications." Energies 11, no. 1: 192.