Abstract — Renewable Curtailment Reduction Via Battery System
Simulation of lithium-ion battery charging using CC-CV control strategy for EV applications. Coupled electrical and thermal modeling of lithium-ion battery cells for performance and safety analysis. Figure 2: Power Converter Circuit Schematic & Electrical Interfacing for Renewable Curtailment Reduction Via Battery System Renewable energy system with DC-DC boost converter and MPPT control for maximum power extraction.
Analytical & State-Space Control Methodology
System-level design and sizing of off-grid photovoltaic systems for standalone applications. These case studies are interconnected and can be combined for advanced research: Marwa Abdelkareem Research Engineer | Power Electronics & Renewable Energy Systems MATLAB/Simulink Simulation Specialist A MATLAB/Simulink research framework for power electronics and electrification systems, covering EV charging (CC-CV), lithium-ion battery electro-thermal modeling, PV MPPT boost converters, and off-grid energy systems for graduate-level study and academic research.
Simulink Waveforms & Power Quality Findings
This paper demonstrates an enhancement of power quality for a photovoltaic (PV) system connected to the grid with a hybrid energy storage system (HESS). The proposed system utilizes a ramp-rate control (RRC) strategy to limit severe fluctuations in the PV power output. Battery storage is integrated to store surplus energy generated by the PV system and is used for continuous power application. A high-power density device, known as a supercapacitor (SC), is employed to mitigate transient fluctuations in the battery. The proposed system facilitates smooth PV power generation, stabilizes the DC bus voltage (V DC ), and eliminates source current harmonics induced by non-linear loads. The Shunt Active Power Filter (SAPF) discussed in this paper serves two primary purposes. Firstly, it acts as a reactive power buffer, smoothing out fluctuations and reducing current harmonic distortions. Secondly, it enables active power injection into the grid, utilizing a specific renewable solar PV source. The efficiency of the modeled compensation system is demonstrated by the sinusoidal shape of the current and the compensation of reactive power (RPC). The targeted system showcases the effectiveness of the current setup by exhibiting low total harmonic distortion (THD). The multifunctional features of the proposed system were implemented using the MATLAB/Simulink software, and the results were validated using an OP5700 Hardware-in-the-Loop (HIL) test bench. This integration of distributed power generation capabilities not only enhances the overall power quality but also improves the efficient utilization of renewable energy resources (RESs).
Scope & Practical Applications
- High-efficiency DC-DC converters and isolated resonant topologies (LLC / DAB)
- Sinusoidal and Space Vector PWM inverters for grid integration & industrial motor drives
- MOSFET / IGBT gate driver optimization with active Miller-clamp shoot-through protection
- Power quality conditioning with Total Harmonic Distortion (THD) strictly compliant with IEEE 519
- Complete Simscape .SLX model files, parameter calculation scripts, and IEEE dissertation reports
Simscape Modeling
Simulink power stage & discrete PWM solver
Semiconductor Loss
SiC MOSFET & IGBT thermal dissipation
SVPWM Control
Vector control, FOC & digital PI loops
IEEE 519 Quality
FFT harmonic spectrum & THD < 5% verification
Gate Driver Protection
Isolated bootstrap & Miller clamp circuits
HIL Prototyping
Ready for dSPACE, OPAL-RT & TI C2000 DSP
Engineering Software & Simulation Toolchains
Modeled using industry-standard power electronics simulation platforms, discrete numerical solvers, and HIL testbeds.
| Software Platform | Analytical Function & Role | Simulation Tier |
|---|---|---|
| MATLAB R2024b | Small-signal state-space averaging, bode stability margins, LC filter design, FFT analysis | Analytical Core |
| Simulink / Simscape | Time-domain switching models, non-linear semiconductor models, discrete PI controllers | System Simulator |
| PLECS / PSIM | High-speed thermal loss estimation (conduction and switching Eon/Eoff), snubber design | Thermal & Losses |
| Altium Designer | High-voltage isolation layout, creepage/clearance, power loop parasitic inductance minimization | Hardware PCB |
| TI C2000 / dSPACE | Embedded C codegen from Simulink, high-resolution ePWM registers, Hardware-in-the-Loop test | HIL Deployment |
Power Conversion & Control Topology Workflow
Systematic integration from DC input energy source and high-frequency gate drive to digital control loops and load delivery.
Renewable Bus
MOSFET/IGBT Bridge
& SVPWM Loop
Filter Stage
& FFT Analyzer
Motor Load
Verified Simulink Block Diagrams & Converter Waveforms
Advantages of the Renewable Curtailment Reduction Via Battery System Project
Why this project delivers superior academic grades and provides high technical evaluation standing.
High-Fidelity Simscape Modeling
Provides precise numerical simulation of switching events using ODE variable-step solvers without numerical divergence.
Rigorous IEEE 519 Grid Compliance
Guarantees total harmonic distortion (THD) below 5% through optimized LCL filter attenuation and synchronous control loops.
Wide-Bandgap Semiconductor Sizing
Models modern SiC MOSFETs and GaN switches to achieve power conversion efficiencies exceeding 97.5% across full-load regimes.
Advanced Digital Modulation
Implements Space Vector PWM (SVPWM) and sinusoidal modulation maximizing DC-bus utilization by 15.5% over carrier methods.
Dynamic Small-Signal Stability
Custom MATLAB scripts compute control-to-output transfer functions Gvd(s), phase margins (> 50°), and gain margins.
Gate Driver Protection Mechanics
Incorporates active Miller clamps, negative turn-off bias, and isolated bootstrap circuitry to eliminate shoot-through faults.
Hardware-in-the-Loop (HIL) Ready
Directly exportable to embedded C for execution on Texas Instruments C2000 DSPs, dSPACE, and OPAL-RT real-time platforms.
Detailed Magnetic Core Sizing
Features rigorous inductor and high-frequency transformer calculations ensuring core saturation flux margins remain safe.
Direct Electric Vehicle & Grid Value
Builds technical competencies demanded by top automotive EV powertrain developers, solar EPCs, and power electronics consultancies.
Complete Turnkey Package
Delivered with full Simulink .SLX models, MATLAB initialization scripts, calculation sheets, IEEE-format report, and viva defense slides.
Sample MATLAB Code, Scope Waveforms & Harmonic Schedules
Representative excerpts illustrating the state-space analytical derivations, command solver output, and power quality distortion schedules.
[*] Compiling Simscape Electrical Switching Topology Engine... [✓] SiC MOSFET / GaN Switching Semiconductor Characteristics Loaded ──────────────────────────────────────────────────────────────────────── [OUTPUT REGULATION] Steady-State DC Voltage: 24.01 V (Ripple: 0.18 V p-p) [TRANSIENT STEP] 50% to 100% Load Recovery: 0.82 ms (Overshoot: < 1.4%) [SEMICONDUCTOR] Total Switching Loss (Psw): Psw = 4.82 W at 100 kHz [CONVERSION η] Full-Load Power Efficiency: η = 97.42% (Optimal Operating Band) ──────────────────────────────────────────────────────────────────────── [✓] Small-Signal Compensator Verified: Phase Margin = 54.8° (Robust Loop Stability)
[*] Simulating converter steady-state operating envelope across switching cycles...
| Electrical Parameter | Design Objective | Simulink Simulated Metric | Performance Variance | Status |
|---|---|---|---|---|
| Regulated Output Voltage | 24.00 V | 24.01 V | +0.04% | REGULATED |
| Inductor Current Ripple | < 25.0% | 18.4% | -26.4% | OPTIMAL |
| Voltage Peak Ripple | < 240 mV | 180 mV | -25.0% | OPTIMAL |
| Power Conversion Efficiency | > 95.0% | 97.42% | +2.42% | HIGH EFFICIENCY |
[✓] Power Quality Verification Complete: Injected harmonic components conform strictly to IEEE 519 standards.
Frequently Asked Questions
Project Deliverables & Support
Everything needed from project inception to final viva defense — delivered with expert technical support.
.SLX Files
.M Files
Schematics
Report
Slides
Recordings
Sheets
Q&A
Support
Extension