Radiation tolerant conditioning electronics for vacuum measurements n. Ntnu norwegian university of science and technology faculty. Ntnu norwegian university of science and technology. This approach allowed us to deploy pressure tolerant prototype batteries at a very early stage of the project. Chip protection and adaptation for pressure tolerant pt semiconductors. Various power transmission and distribution architectures along with the possible considerations of hvdc transmission in the subsea industry are investigated.
Allows designing systems capable of operations to full ocean depth without the need for expensive atmospheric housings and high pressure electrical connectors. Piezo, pirani, penning electronics fixed above dipole magnet difficult access nonmodular resulting to long interventions and. A capacitor consists of two parallel conducting plates separated by a small gap. Two redundant linear acdc power supply modules distribute the 24vdc2a through.
Only few scientific publications have been found on pressure tolerant power electronics and most of them are outdated due to the new encapsulation and material technologies 614. Enabling pressure tolerant power electronicconverters for subsea application. The transmitters provide precision pressure measurements in nuclear applications requiring reliable performance and functional safety. Ogf article pressuretolerant power electronics for deep. Power electronics signifies the word power electronics and control or we can say the electronic that deal with power equipment for power control. Pressure tolerant electronics phoenix international. Enabling pressure tolerant power electronic converters for.
The dtn2070 contains only analog electronics utilizing a diaphragm isolated direct coupled strain gauge pressure sensor capsule. Pressure tolerant electronics pte refers to electronic components or systems developed or modified so that they can satisfactorily operate in a hyperbaric or hydrostatic medium without the benefit of pressure resisting housings enveloping them. The authors of 23 underline as integration and miniaturization. Find materials for this course in the pages linked along the left. Due to the consistent application of the pressuretolerant technology the thrusters are very. Professor seth sanders advises the group on research in the areas of power electronics, switching converters, and energy systems. Schlecht, laser diode driver based on power converter technology, ieee transactions on power electronics, vol. Resistance change was studied under pressure 010 gpa in bridgman opposed anvil cell. Pressuretolerant power electronics for deep and ultradeep. Pressure tolerant electronics pte is the technique of submitting electronic components to the full ambient pressure of the ocean by packaging them in a thinwalled housing filled with oil. A system that converts electric energy to an electric load through a control circuit is known as a power electronic system.
Pressure tolerant electronics pte have many advantages over the conventional atmospheric pressure housing. The main focus of this paper is on how well power igbts can be adapted to high pressure applications by usi ng a dielectric liquid and no gel or additional encapsulation as environment for the power semi conductor chips. Generally, pressure tolerant cards are modified remote subsea versions of standard cards that are paired with standard nonpressure. Submerging components in dielectric liquid under high pressure represents new environmental conditions for the power and control electronics. Power electronics have eased the concept of power control. Index termsfault diagnosis, faulttolerant operation, power electronic systems, reliability. Oystein holt pressure tolerant power electronics masters thesis trondheim, june 2009 ntnu norwegian university of science and technology faculty of information technology, mathematics and electrical engineering department of electrical power engineering. The cells can withstand extreme pressure at temperatures of 4 without being compromised on integrity. Operation of igbtmodules in insulation liquids ntnu open. Nptel video lectures, nptel online courses, youtube iit videos nptel courses. Additional information is found in the instruction manual and datasheet 16. This paper presents results from an ongoing research project sintef 2011 on pressure tolerant power electronics. Pressure tolerant power igbt modules for subsea applications petterteig astrid.
Post doc fellowship within pressure tolerant power electronics for subsea oil and gas exploitation 85774, arbeidsgiver. Hermetically sealed the revolutionary design of subsonus tag features total encapsulation of the electronics and batteries. Therefore the oil companies are looking for more feasible solutions for subsea power electronics. Radiation tolerant conditioning electronics for vacuum. An internal amplifier makes the sensor simpler to use. Over the years phoenix has studied the effects of pressure on hundreds of electronic components and built a database which is drawn upon for new pressure tolerant projects. The advantage of switch compared to continuous controllers like resistor or continuous amplifier transistor is the lower energy losses figure 4. Some of benefits of pressure tolerant electronics are. What i mean by that is you are not going to find answers to questions like maximum operational pressure of most components, even if you email the company. Hernes pressuretolerant power electronics for deep and ultradeep water, referenced at the end of this report, includes a discussion of modifying commerciallyavailable highpower igbt modules for longterm pressuretolerant. Todays concept considers power electronic converters in 1bar vessels. Enabling pressure tolerant power electronics ptpe for. For higherpower and highervoltage switching applications, bipolartype devices are typically used. Pressure tolerant nanocrystalline se85xte15gaxx0, 2, 6, 10.
Hernes, pressuretolerant power electronics for deep and ultradeep water. Power electronics nptel online videos, courses iit. Otc21467pp pressure tolerant power electronics for. The ppu is designed to per form in 20 krad tid environments. I thought wed be ok using smd crystals, based on this wikipedia article and based on reading the reference from the us dept of. Ntnu norwegian university of science and technology, soknadsfrist. The relative resistance change is very small in the experimental range. Pressure tolerant power electronics semantic scholar. This work was supported by panjab university under the research subsidy grant for the project a.
Survey on reliability of power electronic systems msu college of. For example, it makes it possible to use long signal cables to connect to the sensor. Capacitive pressure sensors measure pressure by detecting changes in electrical capacitance caused by the movement of a diaphragm. The evolving role of pe don tan, ieee power electronics magazine, june 2015. Pdf pressure tolerant power igbts for subsea applications. Moreover, most applications refer to short time or temporary subsea operation. Todays concept considers powerelectronic converters in 1bar vessels. I thought wed be ok using smd crystals, based on this wikipedia article and based on reading the reference from the us dept of the navy. The main goal of the research is to provide and demonstrate solutions that enable powerelectronic converters to operate in pressurized environments. Introduction in the lhc about 24km vacuum chambers in the dsarcs thermal insulation vacuum range 10e8 mbar high vacuum beam vacuum range below 10e10 mbar ultrahigh vacuum 3 sensors with deported electronics to measure pressure. Power electronics i about the tutorial power electronics refers to an interdisciplinary subject within electrical engineering that deals with the design, control and conversion of power in its electric form.
Due to the neutral buoyancy of the cells and battery, buoyancy foam can be reduced in the vehicle, saving cost, weight and. The main goal of the research is to provide and demonstrate solutions that. Resonant converters and rf radio frequency power circuits pdf 1. This approach allowed us to deploy pressure tolerant prototype batteries at. It also refers to a subject of research in electronic and electrical engineering which deals with the design, control, computation and integration of nonlinear, timevarying energyprocessing electronic systems with fast dynamics. Various liquid dielectrics such as nytro 10xn, midel 71, and galden ht230 were examined in 3233 34 for pressure tolerant liquid embedded power electronics modules for deep, and. Provide fundamental material and packaging knowledge for supporting realisation of reliable pressure tolerant power electronic. The main goal of the research is to provide and demonstrate solutions that enable power electronic converters to operate in pressurized environments. Are there crystals that are tolerant of high pressure.
Power electronics introduction to power electronics 10 driver, issued may 9, 2000 4. Subsonus tag features a pressure tolerant display that allows for fast and easy identification of multiple tags and their status. Oil companies have plans for subsea processing of oil and gas. Pressuretolerant electronics pte refers to electronic components or systems developed or modified so that they can satisfactorily operate in a hyperbaric or hydrostatic medium without the benefit of pressureresisting housings enveloping them. Pressure tolerant electronics pte are those electrical or electronics components or equipments which are capable of proper operation in a pressurized environment. Pressure tolerant power igbt modules for subsea applications. Generally, pressure tolerant cards are modified remote subsea versions of standard cards that are paired with standard non pressure. The ace ppu provides power and control to the ace thruster, valves, regulator, and pressure transducers.
Download pdf 15 mb abstract the thermal behaviour of an igbt module was investigated, especially with. This has given its application as a strong contender for fabricating solid state devices in pressure tolerant electronics. Main power source ref signal circuit power electronics based on the switching of power semiconductor devices. Ab this paper presents results from an ongoing research project 1 on pressure tolerant power electronics. Post doc fellowship within pressure tolerant power. Pressure tolerant designed to operate at ambient pressure or 1 atmosphere.
Lecture notes power electronics electrical engineering. Lecture notes on power electronics veer surendra sai. Phoenix has since used pressure tolerant electronics in many projects including its fleet of xbot vehicles and 4 deep water work class rovs all of which are rated to 6000m. Pressuretolerant batteries for autonomous undersea. No need to wait for office hours or assignments to be graded to find out where you took a wrong turn. Pressure range depending on sensor electronics readout compared to reference pressure system room temperature optimizations to exploit full potential of the sensor test of thermal effects in climatic chamber cycles from 5 c to 70 c 5c step upwardsdownwards mitigations for optimum thermal response simulated pressure measurement. Implicit in the definition of pressuretolerance is the technique of utilizing an intermediary fluid. The electronic paper technology consumes no power between updates of the screen graphics.
Some piezoelectric pressure sensors include an internal charge amplifier to simplify the electrical interface by providing a voltage output. Pressuretolerant batteries for autonomous undersea applications. Pressure tolerant nanocrystalline se85xte15gaxx0, 2, 6. The pressure tolerant battery of claim 2, wherein the pressure compensator comprises a bladder. Pressuretolerant electronics pte are electronic components or assemblies that can operate satisfactorily under high pressure hyperbaric or hydrostatic, such as oil baths, without the need of a high pressure enclosure. Hernes pressure tolerant power electronics for deep and ultradeep water, referenced at the end of this report, includes a discussion of modifying commerciallyavailable high power igbt modules for longterm pressure tolerant. A customer wants to use our product in a submarine, immersed in high pressure oil. This paper presents results from an ongoing research project sintef 2011 on pressuretolerant power electronics. Implicit in the definition of pressure tolerance is the technique of utilizing an intermediary fluid. Increased power outputs result in increased losses temperature rise limited by power device, magnetic, capacitor, internal temperatures strong interactions between packaging, thermal performance, and reliability means all aspects of power electronics design must be addressed concurrently. Future oil and gas development projects call for reliable power electronics in a wide. Power electronics department of eee, nitt ee674 advanced power system protection 3 0 0 3 ee675 digital simulation of power electronic systems 3 0 0 3 ee676 pwm converters and applications 3 0 0 3 ee677 transient over voltages in power systems 3 0 0 3 ee678 high voltage dc transmission 3 0 0 3 ee679 embedded system design 3 0 0 3 ee680 computer relaying and wide.
The instruments are class 1e qualified to ieee 3231974 and ieee 344 1987. For higher power and highervoltage switching applications, bipolartype devices are typically used. This paper present result from an ongoing research project on pressure tolerant power electronics where the power electronic components are enabled to operate. Request pdf enabling pressure tolerant power electronic converters for. Hernes, sintef energyresearch,a pressuretolerant power electronics for deep and ultradeep watera.
Pressuretolerant electronics pte are those electrical or electronics components or equipments which are capable of proper operation in a pressurized environment. The 850 meter, 1,500 meter and 3,000 meter versions of the model 218 linear actuator fit the pressure tolerant control electronics module within the actuator housing. Pressuretolerant power electronics for deep and ultradeep water. Pressure tolerant electronics pte are electronic components or assemblies that can operate satisfactorily under high pressure hyperbaric or hydrostatic, such as oil baths, without the need of a high pressure enclosure. The pressure tolerant battery of claim 1, further comprising battery control electronics operationally connected to the lithium. The pressure tolerant battery of claim 1, further comprising a pressure compensator disposed in the housing. Enabling pressure tolerant power electronic circuits is a significant step in that direction. This configuration allows very efficient, along with the special power electronics precisely controllable relapses, at a very high efficiency. Another reason is that converter control electronics can be easily separated in pressure compensated and relative small standalone units with a tidy interface fibres etc. Download pdf 15 mb abstract the thermal behaviour of an igbt module was investigated, especially with respect to the module being immersed in dielectric oil.
The variations in resistance at different pressures were recorded. Pressure tolerant power electronics for subsea oil and gas exploitation presspack financed by the research council of norway and 9 industry partner main objective for both projects. Subsea power supplies qualified optical couplers pressure tolerant devices 1 atm or pressure balanced enclosures 922sfps 922backplane products 922fom focals model 922 family of subsea controls electronics cards are designed to support subsea installation with many critical requirements. Pressure tolerant power electronics for deep and ultra. The advantages and limitations of ac or dc distribution for subsea systems are presented. Unlike static pdf power electronics solution manuals or printed answer keys, our experts show you how to solve each problem stepbystep. The most important paper as a reference for our design was 23, where hybrid pressuretolerant electronics has been developed. Enabling pressure tolerant power electronic converters for subsea. Power electronics is the application of solidstate electronics to the control and conversion of electric power. The thruster is designed to be used in water depths up to 6,000 m. Pressure tolerant power electronics masters thesis trondheim, june 2009 ntnu norwegian university of science and technology faculty of information technology, mathematics and electrical engineering department of electrical power engineering. The power electronics group is in the electrical engineering and computer sciences eecs department at the university of california, berkeley.
Electronics embedded in each phoenix cell protect the cell during charge, discharge and handling. Enabling pressure tolerant power electronics ptpe for deep. Power semiconductor switch power semiconductor devices are used for control of the voltage or current of the electric equipment. Capacitive pressure sensors the design engineers guide. Power electronics thermal control sreekant narumanchi center for transportation technologies and systems presented at the. The main goal for the research is to provide and demonstrate solutions that enable power electronic converters to operate in pressurized environment. Several pte systems have been fabricated at the naval ocean system center, including amplifiers, signal processing subassemblies, power control systems, command and control subsystems, and a. Piezoelectric pressure sensors the design engineers guide. Pressure tolerant electronic systems ieee conference.
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