Acknowledgements
The author would like to gratefully acknowledge the guidance and encouragement of Mr. Billy Chow, the Project supervisor who inputs further stimulated my interest to look more into issues related to simulation of circuit and nurture me with ideas to improve the design and testing process. In the successful indicates the correct direction of this project.
Executive Summary
The aim of project is to researches and analyses for DC DC converter to suitable application of coil gun. In this project, the DC converters have different type and characteristics. That is introducing four types of them namely, Buck, Boost, Buck-Boost and Cuk converter were studied and compared. In design 4A, implement the circuit of high voltage DC DC boost converter was simulated using the PSIM software. The PSIM software is widely adopted in universities, consultants, research centers, companies, etc. This software is fastest simulators for power electronics circuit. It is capable of simulate large and complex power converter and control systems in a short time. Further to development on design 4B, the circuit will be modified to improves in ripple waveform of output and improve the feedback circuit to control the output voltage. Furthermore, the converter is adopted based on measurement and comparison between power circuits in simulation time.
Table of Content
No. Description Page
1. Introduction 4
2. Background 5
3. Literature Search
3.1 Type of DC DC Converter 6-11
4. Technical Work
4.1 Target specification 12
4.2 Implementation DC DC boost converter 12-15
4.3 Design and implementation of 555 integrated circuit 15-18
4.4 Implementation of high voltage DC DC boost converter 19-20
5. Project Plan 21
6. Discussion and Conclusion ...
... middle of paper ...
... circuit in database of PSIM software. Therefore, design the equivalent integrated circuit to suitable the high voltage DC DC boost converter. Then, it is successfully designed and simulated the output waveform of circuit. But, it is combination in the boost converter that the simulation results of output waveform have some problem for boost converter. The voltage and current of output stage are still rising which is not stopped from the long time.
In design 4B, it is required to improve the problem for voltage and current of output stage cannot stop, and the ripple waveform. That is needs to finish the designed, improved and simulated the booster converter, final project presentation, the demonstration and the final project report writing work. Although it would be a great challenge because need to work in day time and can only spend the night time on the project.
It was also possible to simulate ED system after the electric resistances of the equivalent circuit were obtained from the analysis of the time course of PaCl. The simulation results agreed with ED data very well.
Oscilloscope is acquainted as one of the most helpful instrument for testing circuits. It is able to show the signals at different points in the circuit. One way to inves...
This project belongs in the engineering-efficiency category; therefore, it has to fit at least 3 of 4 performance hurdles, which are 1. Impact on EPS; 2.Payback; 3.Discounted cash flow and 4. Internal rate of return.
Initial projections show that the current schedule will take 50 weeks to finish with a final budget estimate of $3.152 million. Although the project estimate comes in under budget, the time frame for completion extends beyond the acceptable 45 weeks. Therefore, the following discussion takes a closer look at the project's conditions by developing a project priority matrix, project network, and a Gantt chart to help Bjorn Ericksen and his team reduce the project duration. The author then offers a project closure approach.
Electrical energy generation is being expanded by creative innovation, and linear generators are a large part of this trend.
The past applications are a must in the design these days to avoid the same mistakes and errors, but new solutions are required to be applied.
The PSS is an additional control system, which is often applied as a part of an excitation control system. The basic function of the PSS is to apply a signal to the excitation system, producing electrical torques to the rotor in phase with speed differences that damp out power oscillations. They perform within the generator’s excitation system to create a part of electrical torque, called damping torque, proportional to speed change. A CPSS can be modeled by a two stage (identical), lead-lag network which is represented by a gain K and two time constants T1 and T2. This network is connected with a washout circuit of a time constant Tw. The signal washout block acts as a high-pass filter with the time constant Tw that allows the signal associated with the oscillations in rotor speed to pass unchanged. Furthermore, it does not allow the steady state changes to modify the terminal voltages. The phase compensation blocks with time constants T1i – T4i supply the suitable phase-lead characteristics to compensate the phase lag between the input and the output signals. The commonly used structure of the PSS is shown in Fig
Their performance can be modelled, predicted and analyzed using equivalent circuits, and this experiment examines one of these circuits. MEASUREMENTS ------------ Short-circuit test: Primary voltage (Vsc) = 26V Primary current (I1) =
Basic Mathematics for Electronics seventh edition: Nelson M. Cooke, Herbert F.R Adams, Peter B. Dell, T. Adair Moore; Copyright 1960
The objective of the study is to understand and differentiate the resistance, voltage, and the current relations in circuits in series and in parallel
In this paper, I will talk about how AC circuits can be described by considering voltage and current using complex numbers. An AC circuit requires two separate numbers to be able to completely describe it. This is because it takes into account the amplitude and the phase of the current. The fact that complex numbers can be easily added, subtracted, multiplied or divided with each other makes them ideal for this operation where both amplitude and phase have to work together.
leads to low manufacturing cost and low retail prices. This technology is also very appropriate for residential applications with low power requirements and where partial shading is a critical issue. This type of inverter is also designed with a “plug and play” feature so that it can be installed without a deep electrical knowledge. However, if implemented by a big number for industrial applications, due to the distributed installation, the maintenance requirements can increase the cost and discourage wide usage. To keep inverter boxes watertight and use components that have large temperature ambient is major concerns. It will be necessary to develop a system that can detect failure of any micro-inverter and isolate it immediately. This type of inverter has recently become emerging product and promised a remarkable market share in future.
DC to AC converters converts the DC current into AC current. These converters have many applications few of them are listed below. Adjustable speed drives (ASD), uninterruptable power supplies (UPS), active filters, Flexible AC transmission systems (FACTS), voltage compensators, and photovoltaic generator.this is classified into two types: voltage source
Storage of electrical energy is very important in many applications especially electrical appliances which require mobility or short burst of energy over a short duration of time. There had been many technologies developed to emulate characteristics of an ideal power supply which can store large amounts of energy, providing good power output as well as being able to be charged and discharged rapidly without deterioration of any type. A typical power storage device can be characterized by its power density and its energy density, noting that with our current technology, none which can achieve the best of both.
For Mechanical system design the project was to make a solar boat which we did successfully. Through this project I have learnt a lot about the designing and as well as about the boats. It also gave a briefing on product development process and the stages of design. Furthermore, it also helped me with the skills of project management and working in team which is very useful.