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Jaber A. Abu Qahouq - IEEE Xplore Author Profile

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This paper presents a state-of-health (SOH) estimation algorithm and hardware platform for lithium-ion batteries. Based on features obtained from the battery's electrochemical impedance spectroscopy (EIS), an artificial neural network (ANN)-based SOH algorithm is developed. EIS measurements collected at different aging levels are utilized to train and test the SOH estimation algorithm. The minimum...Show More
This paper presents a system for second-use batteries utilization in EV DC charging stations. The second-use batteries are those retired from Battery Electric Vehicles (BEVs). The presented system simplifies the integration of batteries to support BEV charging while reducing cost. The system operation modes are discussed, and model simulation results are presented to illustrate its operation.Show More
This paper presents characterization for equivalent circuit model (ECM) parameters variation for lithium-ion capacitor (LiC) under different voltage values. A set of experimentally obtained electrochemical impedance spectroscopy (EIS) data for LiC is fitted using the simplex algorithm to obtain the values for ECM parameters. The model-fit EIS data is compared with the measured EIS data to validate...Show More
High inductance-density with high saturation current on-chip integrated power inductors support achieving high-density integrated power conversion. To guide the design of on-chip planar power inductor, a 3-D physical model in ANSYS®/Maxwell® is developed and utilized in this paper to evaluate the effect of copper winding number of turns on two of the main power inductor performance metrics, namely...Show More
This paper presents an analysis and evaluation of a non-dissipative lithium-ion battery balancing technique based on a switched-inductor topology. The switched-inductor topology transfers the charge between series-connected battery cells to achieve balanced condition. The principle of operation of the balancing technique is first reviewed and then, detailed DC analysis and speed of balancing, amon...Show More
This paper presents a battery system with parallel architecture and a current-mode controller. The battery system includes battery modules that transfer power to the load wirelessly. The received wireless power is then summed by DC-DC power converters that are connected in parallel at the load side and controlled by a current mode controller. While the system might have different applications, in ...Show More
This paper presents a study on Lithium-ion battery aging behaviors/patterns and related State-of-Health (SOH) indicators before presenting the development of data-driven based SOH estimators. Battery charge/discharge cycling experiments are conducted in order to obtain needed data for this work. The battery ageing behavior patterns until the battery cell reaches highly deteriorated health conditio...Show More
This paper presents experimental results and evaluation of a wirelessly distributed and enabled battery energy storage system (WEDES) controller with battery modules that have unequal capacities. In the WEDES battery system of reference [1], each battery module includes DC-DC power converter for voltage regulation, DC-AC power inverter for wireless power transfer (WPT) and wireless communication l...Show More
This paper presents a closed-loop controller that regulates the voltage or current at both wireless power transfer (WPT) output and nonwireless power transfer (non-WPT) output simultaneously while using the same set of components. First, a power converter topology that has two types of outputs, a WPT output and a non-WPT wired output, is introduced. This dual-type output (DTO) power converter uses...Show More
The paper introduces the concept of a battery system or pack architecture that is divided into several battery modules that share the load power wirelessly and are controlled wirelessly. Each of the wireless battery modules includes its own power electronics for DC-AC power conversion for Wireless Power Transfer (WPT), regulation of voltage and State-Of-Charge (SOC), and wireless communication lin...Show More
This paper presents a perturbation method in order to increase the frequency resolution when measuring the online battery impedance spectrum based on a previously proposed method that utilizes closed-loop control of DC-DC power converter. By adding pulse waveform perturbation to the output voltage reference of power converter, the responses of battery voltage and current contain harmonic component...Show More
This paper presents an evaluation for an input power splitting (IPS) method between multiple wireless power transmitters (MTWPT) system in order to obtain the maximum received power. First, the structure of MTWPT system is reviewed and the theoretical modeling is used to derive the output power relationship. Then, the IPS method is discussed and evaluated. The IPS method is realized by splitting t...Show More
This paper presents an evaluation of paralleled battery system with State-of-Charge (SOC) balancing, real-time battery impedance magnitude measurement, and output voltage regulation with sinusoidal current ripple cancellation using DC-DC power converter control. In the battery system, the SOC balancing is realized by controlling the discharge rate of each battery. At the same time, a sinusoidal pe...Show More
This paper presents a state-of-health indication (SOH-I) method based on the online measurement of the impedance phase. Experimental measurement on 18650-2600 Li-Ion battery showed a relationship between the age increase of the battery and the increase of the frequency value at which the complex impedance phase is equal to zero. This relationship is utilized in this paper to present a preliminary ...Show More
An online method of measuring battery AC impedance spectrum is presented in this paper. By adding a square wave perturbation to the steady-state value of the duty cycle of a boost power converter, AC impendence values can be devised from the responses of the battery voltage and current at the odd harmonics of the perturbation frequency. FFT analysis is applied to battery voltage and current to obt...Show More
This paper presents a simple and upgradable autonomous battery aging evaluation and test system. This system can age the battery autonomously while performing measurements of several parameters of interest based on specifications entered by user. These parameters include but are not limited to capacity fading, AC impedance spectrum, temperature, State-Of-Charge (SOC), and State-Of-Health (SOH). Th...Show More
Maximum output power and maximum system efficiency are the two important design factors in a wireless power transfer (WPT) system. This paper reviews the model used for evaluation of maximum output power and maximum system efficiency in a two-coil WPT system under different distances (DIS), different operation frequencies as well as different load conditions. By obtaining theoretical relationships...Show More
This paper presents a method for an online real-time electrochemical impedance spectroscopy (EIS) measurement of batteries using closed-loop control of power converter. Unlike the previously proposed method which allows the measurement of the ac impedance for a single frequency, the presented method in this paper allows for obtaining the EIS for a spectrum of frequencies by using the information i...Show More
Single-inductor multiple-output (SIMO) switching dc-dc power converter architecture is a cost-effective alternative to multiple individual switching power converters solution in many power distribution system applications where multiple voltage rails are required at reduced cost. However, with multiple output voltage rails coupled to the same switching node, the SIMO power converters suffer from c...Show More
This paper introduces a full comparative evaluation of the advanced PV architectures especially for energy harvest application. The comparative evaluation involves module architecture, sub-module architecture, and cell architecture. The comparison includes the capability of theses PV architectures to mitigate the effect of the mismatch loss that inherently comes from different irradiation on the P...Show More
This paper presents an online multivariable auto-tuning digital controller for DC-DC switching power converters. In the proposed scheme, all the variables/parameters (i.e. gain, zero(s) and pole(s)) of a digital PID compensator are auto-tuned simultaneously during system operation in order to achieve an optimized compensator that results in improved dynamic performance for a given power converter ...Show More
The paper presents a Maximum Power Point Tracking (MPPT) controller for a multi-channel (N-Channel) Photovoltaic (PV) solar system which requires only one voltage sensor and no current sensors. The N-channel Load Voltage Single-Sensor MPPT (LV-SS-MPPT) controller is able to track the MPP of each solar panel using only one output voltage value in the N-channels and is able to provide a very good tr...Show More
This paper presents the design of an on-chip integrated power management architecture with Maximum Power Point Tracking (MPPT) for Photovoltaic (PV) solar system. The system is developed in order to extract higher power for PV system under partial shading and other mismatching conditions. The MPPT circuit is implemented in 0.35μm Complementary Metal-Oxide-Semiconductor (CMOS) technology. The on-ch...Show More
This paper proposes a design of an on-chip coupled power inductor (OCPI) structure which consists of a layer of ferrite core material and another layer of coupled spiral windings on a silicon substrate. The flux cancellation effect of the two inversely coupled windings significantly reduces the net fluxes in the ferrite layer, which helps increasing the saturation current of the power inductor. An...Show More
This paper presents the design and HSPICE simulation results of an on-chip integrated Single-OutputSensor Maximum Power Point Tracking (SOS MPPT) PV solar system architecture. The cell-level on-chip integrated analog SOS MPPT circuit is designed to track the maximum power point of PV system under different conditions including changes in irradiation levels. The MPPT circuit is implemented using 0....Show More