MODELIG AND ANALYSIS OF EFFICIENT WIRELESS POWER TRANSISSION SYSTEM

Wireless Power Transmission (WPT) is the transmission of power between two couplers without any physical medium. WPT has various types but not all types are sustainable in an environment because of the frequency range, and power losses. In WPT, the most preferable type is the Nonradioactive WPT syst

Project Title

MODELIG AND ANALYSIS OF EFFICIENT WIRELESS POWER TRANSISSION SYSTEM

Project Area of Specialization

Electrical/Electronic Engineering

Project Summary

Wireless Power Transmission (WPT) is the transmission of power between two couplers without any physical medium. WPT has various types but not all types are sustainable in an environment because of the frequency range, and power losses. In WPT, the most preferable type is the Nonradioactive WPT system. Which is further divided into two types. The first type is the Electric resonance coupling wireless power transmission system (ERC_WPT). It requires a large size of plates to transfer a small amount of power that makes it bulky and costly.
The second type is the magnetic resonance coupling wireless power transmission system (MRC_WPT). MRC_WPT system is divided into two systems. The first one is the transmission system (Tx), which has five main subsystems. On input, we will use a rectifier to convert AC to DC. For high switching frequency with minimum losses and DC to AC conversion, the class E, class D, and class EFn inverter (High-frequency inverters) are used at the rectifier's end. Increase the current amount with capacitor bank because a large current induces a strong EM field across the inductor. The typical coil has large losses. So, replace it with Litz wire. The Litz wire will generate an EM wave having high frequency and power that will transmit through it and goes to the Rx side through the air medium.
The second system is receiving system (Rx), which is divide into three main subsystems. The Litz wire that acts as coupler on both side. The Rx side coupler will receive the power that is coming from the Tx side with high-efficiency that depends on coil designing such as DQ coil, QQ coil, rectangular coil, single directional coil, and circular coil. On the Rx side, we are using Capacitor bank at the coupler output. The output wave of the capacitor bank is AC while the loads are operating at DC. Therefore, for AC to DC conversion, we use a high-frequency rectifier that is different from the above one. In the output, we use Bulb. 
The above system is for the 2_coil MRC_WPT system. The 2_coil system has a distance and misalignment problem. Resolve these issues by 4_coil MRC_WPT system. The 4_coil system has two additional loops name source and load loop. In the 4_coil MRC_WPT system, the other subsystems are connected to the load and load loop. The source coil only generates a magnetic field that transfers power to the Tx coil that generates EM field and transfers power to Rx coil and then receives to the load side and runs load. 2_coil and 4_coil systems having nine topologies. In this project, we will analyze these topologies in PSpice. Analyze the transmission efficiency of these topologies in both 2_coil and 4_coil systems and implement the efficient one topology of both 2_coil and 4_coil systems on hardware and light up bulbs at the output.

Project Objectives

This project aims to develop and analyze the magnetic resonance coupling wireless power transmission (MRC_WPT) system by PSpice. Model 2_coil and 4_coil MRC_WPT system in PSPICE and investigate the comparative performance study of both coils configuration. Further, evaluate the performance of different compensation topologies such as series_series (SS), series_parallel (SP), parallel_series (PS), parallel_parallel (PP), and inductor_capacitor_inductor (LCL) for achieving maximum power in the MRC_ WPT system. Then, propose and select a suitable compensation topology for the 2_coil and 4_coil MRC_WPT system. In the end, design the prototype for the most sustainable topology of the 2_coil and 4_coil WPT system.

Project Implementation Method

First, we will start with the PSpice simulation. In PSpice, we will analyze different topologies by making RLC lumped models on Tx and Rx sides. Then model and implement the following topologies as series_series (SS), parallel_parallel (PP), series_parallel (SP), parallel_series (PS), inductor_capacitor_inductor_inductor_capacitor_inductor (LCL_LCL), inductor_capacitor_inductor_parallel (LCL_P), inductor_capacitor_inductor_series (LCL_S), parallel_inductor_capacitor_inductor (P_LCL), and series_inductor_capacitor_inductor (S_LCL). 
 After analyzing and modeling all these nine topologies, we will start with the Tx transmitting side. We use 220 volts and use diode base rectifier to convert AC to DC. Then in MRC_WPT, we are transferring power at 1 MHz, and in RLC, we cannot use a DC source, and for high-frequency AC signal with fewer losses, we will design an EFn inverter. Then, to generate a strong magnetic field, it is necessary to have current so, to produce it, we will design a capacitor bank. Connect it with Litz wire (0.12mm*8), and the coil will be circular.
 On the Rx side, we design an asymmetrical coupler with the same dimensions Litz wire. Connect it to the capacitor for power adjustment. Mostly the load operated on DC power. We will use a high-frequency MOSFET based rectifier, connect it with a smoothing capacitor, and then connect it to output. All circuits methodology was for the 2_coil system.
 In the 4_coil system, we have two additional loops to design. The difference is that rather than connecting Tx and Rx coil with the entire circuit we will connect the source and load coil. Source and load are induction base and only generates magnetic fields. Magnetic field delivers power to the Tx coil, that is RLC base. It means that the coupler is connected to the capacitor bank and sampling resistance. This Tx RLC base circuit generated an EM wave with high-frequency AC power and receive by an Rx coil. We will design an identical Tx and Rx system and load and source system. The Rx generates EM wave receives to the load coil. We will design 4_coil after designing the 2_coil system and sets the number of 5 number of turns for source, and load coupler and Tx and Rx coupler have 10 turns in both 2_coil and 4_coil system. We will glow up a DC bulb at both system's output.

Benefits of the Project

In this project, we are going to build up a softwarehardware-based solution for the MRC_WPT system by introducing real-world features and make it feasible for power transmission without any cable. In my project, the MRC_WPT system will provide maximum power for any general application. The MRC_WPT system is a limitless application starting from indoor applications and end ups to EVs. The MRC_WPT system can implement in industries to run machines wirelessly and make robots work 24 hours without time-wasting on charging. Making charging pads for EVs will reduce the size of the battery and make it cost-effective for customers. Charging pads resolve the charging problem in robotics. Infect MRC_WPT systems make humans use machinery with freedom and without boundaries and make the world interesting. By dynamic MRC_WPT system, we can make robots battery-less motion. We take a start-up from indoor applications by glowing a DC bulb. We will propose a 2_coil MRC_WPT system for midrange applications and a 4_coil MRC_WPT system for far-field applications. 

Technical Details of Final Deliverable

Our objective is to make an eco-friendly system. To achieve it, we will implement a system that is applicable to implement everywhere. We are using 220V input, and rather than making a complicated and high-cost amplifier, replacing it with a full bridge rectifier, smoothing capacitor, and EFn inverter. EFn is the inverter that operates on higher-frequency and having resonance within it. EFn has minimum power losses as compared to another one. The Litz wire with eight small wires turns around each other (0.12mm*8). This Litz wire has fewer depth losses as compared to others. Use circular coil designing rather than others for the prototype. We are using 1 MHz of frequency for midrange applications. The 2_coil and 4_coil MRC_WPT system have the dual option at output means that it can be for both AC and DC. After capacitor bank, we can use it for AC and use the high frequency, MOSFET based rectifier, and smoothing capacitor to take DC output. The power transmission system efficiency must be higher than 50%. 2_coil system for midrange application, but in the case of far-field 2_coil system is not efficient. So, we are replacing it with a 4_coil system. The 4_coil system has the same attributes as a 2_coil system but with more distance covering ability and less distressed by misalignment.
 

Final Deliverable of the Project

HW/SW integrated system

Core Industry

Energy

Other Industries

Petroleum , Transportation , Telecommunication

Core Technology

Wearables and Implantables

Other Technologies

Others

Sustainable Development Goals

Industry, Innovation and Infrastructure, Sustainable Cities and Communities, Climate Action

Required Resources

If you need this project, please contact me on contact@adikhanofficial.com