Permanent Magnet High Speed Starter/Generator System Development Directly Coupled to Gas Turbine Engine for Mobile Auxiliary Power Unit
0
Citation
0
Reference
10
Related Paper
Abstract:
This paper shows that high-speed starter/generator system is more efficient for gas turbine engine for mobile auxiliary power unit. The system is rated at 25kW, 325Vdc, 60krpm. The system also provides 4kw to start the 100kW engine. The system consists of a high speed machine directly coupled to the gas turbine engine, a power control unit (PCU), and an electronics controller. The PCU is consist of boost converter that boost from 24V (Battery of Vehicle) to 235V for driving high-speed motor, inverter drive PMSM (Permanent Magnet Synchronous Motor), and buck converter drop the voltage to 28V. For PMSM driving the system applied SVPWM (Space Vector Pulse Width Modulation), sensorless algorithm. And then, to supply optimized power, “Constant Power Control Algorithm” is applied. For the system development, electromagnetic analysis, structure analysis, rotor dynamic analysis, and heat transfer analysis are done. After manufacturing, we have tested the system many times to produce verified performance.Keywords:
Auxiliary power unit
Electronic speed control
We have developed a set of pulse width modulated inverter, 10kVA, 200V, 1200Hz (max) and have controlled induction motors, 5.5kW. This paper deals with the test results of this set and with our theoretical study of PWM inverter modulation techniques. In this paper, we also describe their operations and characteristics.
Modulation (music)
Cite
Citations (0)
The paper presents switching techniques for pulse-width-modulated-based z-source inverter; simple boost PWM, maximum boost PWM, maximum constant boost PWM, modified-reference PWM, modified space vector PWM, hysteresis current control, and sine carrier PWM. Concepts and ideas behind the techniques are briefly explained. An overall view is summed up of the PWM controls, in terms of their achievements and system involvement in ZSI.
Modulation (music)
Cite
Citations (15)
Fully digital AC drives with pulse width modulated inverters are becoming an industrial standard. For PWM inverters several strategies are used. A complete view of the most common carrier based strategies, as sinusoidal PWM, third harmonic injected PWM, discontinuous or dead band PWM and space vector PWM is presented. The authors propose a method based on 'quality factors' to evaluate the different types of modulation.< >
Modulation (music)
Harmonic Analysis
Harmonic
Cite
Citations (18)
The Auxiliary Inverter supply the power to Loads of Electric Locomotive. The Auxiliary Inverter have three characteristics. First, The Auxiliary Inverter is VVVF(variable voltage variable frequency) inverter. And, the output voltage is AC 0 ~ 440V. Second, The Auxiliary Inverter is controled all operations by CCU(Center Control Unit). Last, The Auxiliary Inverter have the SIBMON program. This program easily displays most of all status of auxiliary inverter.
Grid-tie inverter
Auxiliary power unit
Power inverter
Cite
Citations (0)
Using general-purpose inverter to control load of fan,pump can save energy effectively.When the general-purpose inverter is prepared for the existing motor,it is necessary to select the types of inverter according to the actual situation firstly,then it is important to calculate the rated value of inverter accurately,to achieve the best cost performance.The basic principle of selecting inverter shall be that the total current of load with continuous running does not exceed the inverter's rated current.
Grid-tie inverter
Value (mathematics)
Electronic speed control
Cite
Citations (0)
The paper proposes new asymmetrical PWM that can be used for operation of multilevel inverters. The working and construction principle of this PWM is demonstrated on 13-level PWM signal that is applied to nine-level inverter and operates it as 13-level inverter. The proposed PWM signal consists of 5-level hybrid PWM which is constructed from two PWM signals- combined parts of the standard 5-level Phase Disposition (PD) PWM and pulsed PWM. The sum of these two PWM signals produces the desired 13-level PWM signal that is applied to the 9-level cascaded inverter. The proposed PWM method allows reduction of 13-level inverter components compared to the standard topologies such as neutral point clamped or flying capacitor inverters. This results in smaller size, weight and cists of the inverter.. Extensive simulation results validate the practicability of the proposed PWM method. The proposed method can be extended to any desired number of levels.
Modulation (music)
SIGNAL (programming language)
Cite
Citations (0)
The paper presents the following issues. The 1st is the various elements and the development of the inverter drive technique, watching its history. The 2nd the transition of energy-saving and the appearance and roll of the inverter as energy-controller. The 3rd is the technical subjects and the solution instances of the inverter drive which is applied to energy-saving drive. The last is the view of the future subject and image of the ideal inverter.
Grid-tie inverter
Cite
Citations (0)
Abstract This paper presents a nine‐switch inverter that can drive two AC motors independently. Recently, as an inverter that can drive them independently, a five‐leg inverter has been proposed. Ten switching devices are used for the five‐leg inverter, whereas only nine are used for the nine‐switch inverter. So, the nine‐switch inverter has the merit that one switching device can be reduced compared to the five‐leg inverter. Moreover, the maximum output voltage of the nine‐switch inverter equals that of the five‐leg inverter. In this work, we propose the structure of the nine‐switch inverter and a modulation method for the same, and validate the nine‐switch inverter by showing simulation results. Copyright © 2007 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.
Grid-tie inverter
Cite
Citations (26)
The paper presents switching techniques for pulse-width-modulated-based z-source inverter; simple boost PWM, maximum boost PWM, maximum constant boost PWM, modified-reference PWM, modified space vector PWM, hysteresis current control, and sine carrier PWM. Concepts and ideas behind the techniques are briefly explained. An overall view is summed up of the PWM controls, in terms of their achievements and system involvement in ZSI.
Cite
Citations (0)
This paper proposes a novel inverter named nine-switch inverter. The inverter has nine switching devices and can control two loads. First, the configuration of the inverter is introduced. Then, a PWM method for the inverter is elaborated. The validity of the inverter is verified by simulations and experiments. In addition, this paper proposes a 3N + 3-switch inverter, which is an extension of the nine-switch inverter. This inverter has 3N + 3 switches and can control N loads independently. The validity of the 3N + 3-switch inverter is also verified by simulations.
Grid-tie inverter
Cite
Citations (88)