Design, implementation and characterization of a novel bi-directional energy conversion system on DC motor drive using super-capacitors

Sun, Li; Zhang, Nong

doi:10.1016/j.apenergy.2014.06.084

Cited by 25 publications

(7 citation statements)

References 16 publications

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“…The SC"s terminal voltage is also directly proportional to State of Charge (SOC). Other previous papers by the authors [19], [20] have discussed both the development and testing of a small-scale drive system based on supercapacitors as energy storage media.…”

Section: System With Supercapacitor Energy Storagementioning

confidence: 99%

Impact of Low and High Congestion Traffic Patterns on a Mild-HEV Performance

Awadallah¹,

Tawadros²,

Walker³

et al. 2017

SAE Technical Paper Series

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Driven by stricter mandatory regulations on fuel economy improvement and emissions reduction, market penetration of electrified vehicles will increase in the next ten years. Within this growth, mild hybrid vehicles will become a leading sector. The high cost of hybrid electric vehicles (HEV) has somewhat limited their widespread adoption, especially in developing countries. Conversely, it is these countries that would benefit most from the environmental benefits of HEV technology. Compared to a full hybrid, plug-in hybrid, or electric vehicle, a mild hybrid system stands out due to its maximum benefit/cost ratio. As part of our ongoing project to develop a mild hybrid system for developing markets, we have previously investigated improvements in drive performance and efficiency using optimal gearshift strategies, as well as the incorporation of high power density supercapacitors. In this paper, the fuel and emissions of a baseline conventional vehicle and mild hybrid electric vehicle (MHEV) are compared. The objective of this analysis is to compare the fuel economy and Greenhouse Gas (GHG) emissions of the baseline and MHEV models, using low and highdensity traffic patterns chosen for their similarity to traffic density profiles of our target markets. Results demonstrate the benefits of a lower ongoing cost for the HEV architecture. These advantages include torque-hole filling between gear changes, increased fuel efficiency and performance.

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Section: System With Supercapacitor Energy Storagementioning

confidence: 99%

Impact of Low and High Congestion Traffic Patterns on a Mild-HEV Performance

Awadallah¹,

Tawadros²,

Walker³

et al. 2017

SAE Technical Paper Series

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“…A common structure used for power systems based on renewable generators and ESD is presented in Figure 1. This stand-alone power system has been extensively used in applications such as electric vehicles [27][28][29][30][31][32][33], irrigation systems [34,35], heating systems [36], energy supply systems for telecommunication equipment [37][38][39], etc. The system considers the renewable energy source, e.g., photovoltaic panel or fuel cell, connected to an unidirectional DC/DC converter whose purpose is to operate the renewable generator in its optimal conditions.…”

Section: Introductionmentioning

confidence: 99%

Sliding-Mode Control of a Charger/Discharger DC/DC Converter for DC-Bus Regulation in Renewable Power Systems

2016

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Stand-alone power systems based on renewable energy sources are used to replace generators based on fossil fuels. Those renewable power systems also require Energy Storage Devices (ESD) interfaced by a charger/discharger power converter, which consist of a bidirectional DC/DC converter, and a DC bus. This paper proposes a single sliding-mode controller (SMC) for the charger/discharger DC/DC converter to provide a stable DC bus voltage in any operation condition: charging or discharging the ESD, or even without any power exchange between the ESD and the DC bus. Due to the non-linear nature of the power converter, the SMC parameters are adapted on-line to ensure global stability in any operation condition. Such stability of the adaptive SMC is mathematically demonstrated using analytical expressions for the transversality, reachability and equivalent control conditions. Moreover, a design procedure for the adaptive SMC parameters is provided in order to ensure the dynamic response required for the correct operation of the load. Finally, simulations and experimental tests validate the proposed controller and design procedure.

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“…Discharging SC mode-waiting for Switch 1 to turn off q 10 Discharging SC mode-waiting for Switch 3 to turn off q 11 Discharging SC mode-waiting for Switch 2 to turn on q 12 Discharging SC mode-using SC as auxiliary power source q 13 FC power source mode-waiting for Switch 3 to turn off q 14 FC power source mode-waiting for Switch 2 to turn off q 15 FC power source mode-waiting for Switch 1 to turn on q 16 FC power source mode-FC is the main power source …”

Section: Statementioning

confidence: 99%

Development of a compact regenerative braking system for electric vehicles

Tzortzis

Amargianos

Piperidis

et al. 2015

2015 23rd Mediterranean Conference on Control and Automation (MED)

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In this paper, a detailed study and implementation of a reliable and efficient regenerative braking system is presented. It is applied on a prototype electric vehicle, that uses a hydrogen fuel cell as its only power source. Supercapacitors are used to store the energy that is generated during braking, transistors for switching the alternative circuits and an embedded computer controller program undertakes the synchronization of the system tasks. A finite state machine was designed to create a simple but robust technique to control the transistor switches according to the system's sensory inputs. The system is powered by its own supercapacitors, and thus it may be used in a plug-and-play manner. On-road test drives proved the system's reliability and efficiency.

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Design, implementation and characterization of a novel bi-directional energy conversion system on DC motor drive using super-capacitors

Cited by 25 publications

References 16 publications

Impact of Low and High Congestion Traffic Patterns on a Mild-HEV Performance

Impact of Low and High Congestion Traffic Patterns on a Mild-HEV Performance

Sliding-Mode Control of a Charger/Discharger DC/DC Converter for DC-Bus Regulation in Renewable Power Systems

Development of a compact regenerative braking system for electric vehicles

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