AU2018377971B2 - Electrical power supply system for the acquisition modules of a towed linear acoustic array - Google Patents
Electrical power supply system for the acquisition modules of a towed linear acoustic array Download PDFInfo
- Publication number
- AU2018377971B2 AU2018377971B2 AU2018377971A AU2018377971A AU2018377971B2 AU 2018377971 B2 AU2018377971 B2 AU 2018377971B2 AU 2018377971 A AU2018377971 A AU 2018377971A AU 2018377971 A AU2018377971 A AU 2018377971A AU 2018377971 B2 AU2018377971 B2 AU 2018377971B2
- Authority
- AU
- Australia
- Prior art keywords
- power supply
- stage
- module
- converter
- hub
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000006243 chemical reaction Methods 0.000 claims abstract description 22
- 230000001105 regulatory effect Effects 0.000 claims abstract description 5
- 238000011144 upstream manufacturing Methods 0.000 claims description 14
- 230000007246 mechanism Effects 0.000 claims description 11
- 230000004913 activation Effects 0.000 claims description 9
- 230000015654 memory Effects 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 230000001052 transient effect Effects 0.000 claims description 5
- 238000004146 energy storage Methods 0.000 abstract 2
- 230000006870 function Effects 0.000 description 9
- 238000001514 detection method Methods 0.000 description 6
- 230000009467 reduction Effects 0.000 description 5
- 230000033228 biological regulation Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000001934 delay Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920002492 poly(sulfone) Polymers 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005315 distribution function Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/36—Means for starting or stopping converters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
- G01V1/20—Arrangements of receiving elements, e.g. geophone pattern
- G01V1/201—Constructional details of seismic cables, e.g. streamers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0006—Arrangements for supplying an adequate voltage to the control circuit of converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
- H02M1/007—Plural converter units in cascade
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Acoustics & Sound (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Dc-Dc Converters (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
The invention relates to a module (16) for supplying electrical energy to data acquisition sensor modules (12) (HUBs) from an electrical power supply line (14) with a constant direct current. Said module predominantly comprises a regulating stage (21) which is fed by the electrical power supply line and and generates a constant low-value shunt voltage, as well as a first DC-DC conversion stage (22) and a second conversion stage DC-DC (23), the implementation of which is respectively controlled by the application of a first control signal (SHDN) and a second control signal (RUN). The module also comprises a first energy-storage reservoir powered by the voltage-regulating stage (21) and designed to supply the energy required to start the first DC-DC conversion stage (22), and a second energy-storage reservoir powered by the first DC-DC conversion stage (22) and designed to supply the energy required to start the second DC-DC conversion stage (23).
Description
Electrical power supply system for the acquisition modules of a towed linear acoustic array
[001] The present disclosure relates to the field of digital towed linear acoustic antennas using conventional electro-acoustic technology and more particularly to electronic telemetry systems that digitize the signals generated by the set of acoustic hydrophones forming such an antenna and by non acoustic sensors, or "NAS" in acronym form (temperature sensors, immersion sensors, heading sensors, roll/pitch sensors, etc.) that are required for the processing of signals on sonar channels and the utilization thereof.
[002] The present disclosure relates directly to a method and to a system for supplying electrical energy to the various modules forming the electronic telemetry system of a towed linear acoustic antenna.
[003] Overall in the field of anti-submarine warfare, the ability to listen at very low frequencies remains an ongoing challenge and a major issue, and technical solutions are constantly being sought (hardware solutions and/or sonar signal processing solutions, etc.) in order to increase detection distances.
[004] Over the previous decades, detection systems based on very low frequency towed linear antenna technologies have radically advanced underwater listening capabilities, as far as making it possible to detect objects of interest at great depths, sometimes beyond the first convergence zone.
[005] In recent years, however, new risks have arisen linked to detection and counter-detection using ultra low frequency sound waves (<< 100 Hz), which have highlighted the need to supplement current listening means with means adapted to this frequency range.
[006] To date, the best answer able to be found consists in producing a very long towed linear antenna, typically several hundred meters in length, with an increasing number of acoustic or hydrophone sensors.
[007] However, producing such antennas has led to the occurrence of induced problems, linked notably to the need to have antennas with a smaller diameter (cross section) so as to limit the increase in the size of the antennas due to their increase in length. This search for a comparatively smaller diameter results in a corollary search for a reduction in the density of the wiring present in the antenna, a reduction that results in an overall reduction in weight that has the expected effect of improving buoyancy and better balancing. However, this search for a reduction in the density of the wiring naturally has to be performed with the objective of not sacrificing system robustness in terms of fault tolerance and operation in degraded mode. Moreover, the increase in the number of sensors leads to a search for solutions in order to satisfy the energy needs of such antennas with a reduced number of power supply lines, or even with a single line, while at the same time limiting the supply voltage so as not to increase the constraints of limited insulation voltage beyond the normal values, in particular at the wired connections, the connectors for joining the antenna modules and at the tow rigging, as well as the antenna power supply constraints. However, in the current state of the art, none of the structures implemented in order to produce the telemetry systems of current towed linear antennas is able to meet these various constraints.
[007A] Any discussion of documents, acts, materials, devices, articles or the like which has been included in the present specification is not to be taken as an admission that any or all of these matters form part of the prior art base or were common general knowledge in the field relevant to the present disclosure as it existed before the priority date of each of the appended claims.
[007B] Throughout this specification the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element, integer or step, or group of elements, integers or steps, but not the exclusion of any other element, integer or step, or group of elements, integers or steps.
[008] Some embodiments of the present disclosure aim to propose a means for meeting the constraints outlined above.
[009] To this end, the present disclosure relates to a power supply module intended to supply energy to the elements forming a module for acquiring data produced by a set of sensors, or HUB, from an electric power supply line supplying a constant DC current. The module according to the present disclosure for this purpose primarily comprises: - a regulator stage configured so as to be supplied with power by the electric power supply line and to produce a low-value shunt voltage; - a first DC-to-DC converter stage, or main converter, the activation of which is controlled by applying a first control signal (SHDN) to a control input, - a second DC-to-DC converter stage, or secondary converter, the activation of which is controlled by applying a second control signal (RUN) to a control input. The module according to the present disclosure furthermore comprises a first energy store, or upstream store, supplied with power by the voltage regulator stage and configured so as to supply the energy necessary to start up the first DC-to-DC converter stage when the first control signal (SHDN) is activated, and a second energy store, or downstream store, supplied with power by the first DC-to-DC converter stage and configured so as to supply the energy necessary to start up the second DC-to-DC converter stage when the second control signal (RUN) is activated.
[0010] According to various provisions that may each be considered separately or in combination with others, the module according to the present disclosure may have various provisions that are listed below.
[0011] According to a first provision, the module according to the present disclosure comprises a redundant mechanism for protecting the current supply line, the protection consisting in establishing a short circuit (bypass) between its connection terminals to the power supply line in the event of failure of an electronic element within the HUB.
[0012] According to another provision, the protection mechanism is configured such that, in the event of failure of electronic circuits in the HUB that interrupts the current supply chain, it isolates the HUB from the power supply line of the antenna. Said protection mechanism has a first level of protection and a second level of protection, which ensures that the power supply line of the antenna is protected in the event of failure of the circuits forming the first level of protection.
[0013] According to another provision, the first level of protection is implemented by a transistor circuit, and the second level of protection is implemented by a thyristor circuit.
[0014] According to another provision, the module according to the present disclosure furthermore comprises a first startup circuit that measures the charge of the upstream energy store and activates the first control signal (SHDN) when full charging of the upstream energy store is detected, and a second startup circuit that measures the charge of the downstream energy store and activates the second control signal (RUN) when full charging of the downstream energy store is detected.
[0015] According to another provision, the module according to the present disclosure furthermore comprises a controller circuit configured so as to control the establishment of the output voltages Vsn of the secondary converters of the second DC-to-DC converter stage, so as to establish the various voltages Vsn in a sequence that makes it possible to start up the programmable circuits and memories forming the HUB.
[0016] According to another provision, the converters forming the first and the second DC-to-DC converter stage are synchronized by the same frequency chosen so as not to generate conducted and/or radiated electromagnetic interference with the elements of the antenna in which the HUB is integrated.
[0017] According to another provision, the upstream electrical energy store and the downstream electrical energy store are two capacitive devices.
[0018] According to another provision, the power supply module according to the present disclosure is configured so as to implement an operating phase in nominal mode during which it supplies power to the various elements of the HUB, and an operating phase in transient startup mode that gradually establishes the voltages delivered by the module. The second operating phase in startup mode has three main phases: - a first phase, which consists in establishing a low-value regulated shunt voltage VREG from the DC current flowing on the general power supply line of the antenna; the duration of this first phase depending on the time Tr1 necessary to achieve a perfectly established and stable voltage VREG and on the time Ti necessary to achieve charging of the upstream energy store sufficient for the startup and the nominal operation of the first DC-to-DC conversion stage; - a second phase, which consists in starting up the main DC-to-DC converter after executing the first phase; the duration of this second phase depending on the time Tr2 necessary to achieve a stabilized voltage VM at the output of the main DC-to-DC conversion stage and on the time T2 necessary to achieve charging of the downstream energy store sufficient for the startup and the nominal operation of the second DC-to-DC conversion stage; - a third phase, which consists in starting up the secondary converters of the DC-to-DC conversion stage responsible for producing the voltages Vso, after executing the second phase.
[0019] Advantageously, the power supply device according to the present disclosure simultaneously makes it possible: - to create the normal voltages (5 Vdc; 3.3 Vdc; 2.5 Vdc and 1.2 Vdc for example), allowing the various electronic circuits of a HUB to be supplied with power from a low-value local shunt voltage (2.2 Vdc for example); - to correctly manage the antenna startup phase, that is to say the phase of activating the various circuits of the antenna, by managing the intrinsic inrush currents while at the same time supplying the energy necessary for starting up the various electronic modules; - to offer a function for securing the antenna power supply via a redundant automatic bypass device, in the event of damage to the electronics of a HUB module, the device according to the present disclosure ensuring that the overall antenna supply current continues to be propagated to the other HUB modules.
The device according to the present disclosure furthermore advantageously makes it possible to supply power to each acquisition module (HUB) separately from a common power supply line without any specific overall power supply module or any associated wiring being necessary.
[0020] The features and advantages of the present disclosure will be better appreciated by virtue of the following description, which description draws on the appended figures, in which: figure 1 shows a functional schematic depiction of an original telemetry system for a linear acoustic antenna, in which the device according to the present disclosure may be integrated; figure 2 shows a functional schematic depiction of the power supply module according to the present disclosure; figure 3 shows a schematic depiction illustrating the operating principle of the power supply module according to the present disclosure. It should be noted that, in the appended figures, the same functional or structural element preferably bears the same reference symbol.
[0021] A conventional telemetry system for a towed linear acoustic antenna generally has the following functions:
- an antenna synchronization distribution function (antenna sampling clock signal, fast clock, etc.);
- a data acquisition function, consisting of a plurality of acquisition modules or DAU (acronym for the term "Digital Acquisition Module"), conventionally performed by analog processing and digitization modules, distributed regularly within an antenna or various antenna sections following the linear arrangement of the hydrophones (or groups of hydrophones). These modules are synchronized by an antenna synchronization signal generated by one or more synchronization modules and supplied with power via power supply modules;
- an antenna data collection function conveying all of the digitized antenna data to the receiver, which processes said data and is generally located on board the vessel that tows the antenna. This function is conventionally performed by one or more antenna multiplexing modules that are synchronized by the antenna synchronization signal and supplied with power via the power supply modules.
- an electrical energy supply function, which supplies electrical energy to the other modules. This function is conventionally performed by antenna power supply modules, or PSUs according to the acronym for the term "Power Supply Unit". These PSU modules are generally themselves supplied with power from a constant on-board DC current supply and supply power to the various acquisition modules (DAU).
[0022] In the context of the present application, the energy supply module according to the present disclosure is described in an exemplary implementation that is intended to supply electrical energy to the elements forming an original telemetry system for a linear acoustic antenna, the structure of which system is illustrated schematically by figure 1. The implementation of the power supply module according to the present disclosure is however not limited to this single example. The power supply module according to the present disclosure may specifically be applied in other types of equipment, towed linear antennas or the like, comprising equipment supplied with power by a constant DC current electric power supply line, for which it is sought firstly to limit the inrush currents induced on the power supply line at the time of the startup of the equipment supplied with power from this line, so as not to have to overdimension the power transmitted by the general power supply, and secondly to prevent an element supplied with power from the power supply line and exhibiting operational damage from being able to interrupt (open) the current supply chain and thus prevent the supply of electrical energy to the other elements supplied with power from this power supply line.
[0023] The telemetry system illustrated by figure 1 primarily consists of the following elements:
- a plurality of acquisition devices 12 (HUB), each HUB shrewdly grouping together several system functions, primarily:
- managing acquisition modules with local multiplexing of the data produced by these modules, - collecting these data and uploading them to the antenna head and the system responsible for processing and utilizing these data,
- managing 17 the synchronization signals of the various elements forming the HUB, and
- managing 16 the energy supply of these various elements.
The collected sensor data are uploaded by the various HUBs using a series chaining mechanism involving one or more data buses 15. - an antenna synchronization module (SYNC) delivering, on a synchronization bus 13, a general synchronization that is used by the various HUBs to generate the synchronization signals internal to the HUBs.
- an electrical energy generation module located on board the towing vessel and delivering a constant supply current on a power supply line 14.
The system may optionally also comprise, when necessary, one (or more) adaptation modules at the antenna head (HUB head) in order to adapt the uploaded flow of data so as to match, where necessary, the transmission capabilities of the tow line of the antenna (reduction of the antenna throughput before transmission to the on-board receiver via the tow rigging). It should be noted that this (or these) modules may have a structure similar to that of a HUB (customized HUB).
[0024] The telemetry system presented here advantageously makes it possible, by virtue of introducing a module for acquiring the original sensor data (HUBs) having an identical structure, to simplify the mechanism for collecting and uploading the data delivered by the various sensors forming the antenna to the antenna head, as well as the mechanism for synchronizing and supplying energy to the assembly, both because of the standardization of the components used and because of the simplification of the wiring that this introduction brings about.
[0025] The energy supply module 16 that forms the subject matter of the present disclosure may advantageously be integrated into the structure of a HUB acquisition module 12 in order to manage the supply of energy to the various elements forming the HUB, from the supply current delivered by the electrical energy generation module of the antenna on the power supply line 14. The power supply module according to the present disclosure has the advantage of making it possible to increase the number of acquisition modules that an antenna may contain while at the same time keeping the constant current delivered by the general power supply module of the antenna at a conventional standard value, of the order of 2 A for example.
[0026] To this end, it has various means:
- means for creating the DC voltages necessary to supply power to the various electronic circuits that form the HUB (5 Vdc; 3.3 Vdc; 2.5 Vdc; 1.2 Vdc). According to the present disclosure, these voltages are obtained from a low value local shunt voltage.
- means for managing, economically from the point of view of the general power supply of the antenna, the inrush currents intrinsic to the startup phase of all of the modules, while at the same time supplying the energy necessary for the startup of the various functional blocks of the acquisition modules forming the HUB.
- means for securing the distribution of the general supply current of the antenna, notably in the event of damage to an electronic circuit of an element of the HUB leading to the breaking (opening) of the current supply chain, notably by automatically isolating the damaged HUB from the general current supply loop. The power supply module according to the present disclosure thus makes it possible to maintain the supply of current to the other HUBs by the overall power supply module of the antenna.
[0027] Figure 2 shows the overall functional overview of the power supply module 16 integrated into each HUB 12.
As may be seen in the figure, this module comprises a set of separate functional stages: - a head regulator stage 21, connected directly to the general power supply line 14 and configured so as to deliver a regulated DC voltage VREG of a given value, equal to 2.2 V for example;
- a first, main DC-to-DC converter stage 22, configured so as to deliver a DC voltage VM of a given value, equal to 5 V for example, from which the DC voltages necessary for the operation of the various modules of the HUB are produced;
- a second, secondary DC-to-DC converter stage 23, configured so as to produce, from the voltage VM, the DC voltages Vsn necessary for the operation of the various modules of the HUB, a voltage Vs1 of 3.3 V and a voltage Vs2 of 1.6 V for example.
According to the present disclosure, the first converter stage 22 and the second converter stage 23 are controlled by startup modules, module 24 and module 25 respectively, which have the function, in the startup phase, of delaying the activation of the converter stages so as to limit the inrush current absorbed by the power supply module 16 on the constant-current general power supply line 14.
[0028] Also according to the present disclosure, the head regulator stage 21 is configured so as to behave like a shunt (i.e. a low-impedance element) with respect to the current supply line 14. The implementation of the regulator stage 21 formed in this way advantageously makes it possible to use an overall power supply for the antenna having a reasonable standard value (of the order of 500 Vdc for example) and advantageously avoids having to manage high voltages in the antenna and in particular in the tow line. This advantageously results in lower requirements regarding the insulation voltage withstand strength in the wiring, the electronic board connectors and the antenna junctions, etc.
[0029] Moreover, the head stage 21 is also configured so as to behave like a redundant mechanism for protecting the current supply line 14, the protection consisting in establishing a short circuit (bypass) between its connection terminals to the power supply line 14 in the event of failure of an electronic element within the HUB.
[0030] The protection mechanism produced in this way has for example a first level of protection, implemented via a transistor circuit, which makes it possible to isolate the HUB to which it belongs from the power supply line of the antenna 14 in the event of failure of electronic circuits of the HUB that short-circuits the power supply line 14 with ground, and a second level of protection, implemented via a thyristor circuit, which makes it possible to provide identical protection in the event of failure of the elements forming the first-level protection.
[0031] The first DC-to-DC converter stage 22, main converter, is a DC-to-DC converter having a known conventional structure. However, in the context of the present disclosure, its activation is controlled by a control input to which it is necessary to apply a signal allowing the converter to be activated.
[0032] This control signal (SHDN) is produced by the startup module 24, which activates this signal as soon as the voltage VREG is established and sufficiently stable to withstand the inrush current caused by the startup of the main DC-to-DC converter 22.
[0033] In order to achieve such conditions, the regulator stage 21 has an energy store (not shown in the figure) appropriately dimensioned to supply the energy necessary for startup of the main DC-to-DC converter 22 in good time without any uncontrolled transient instability (oscillation of the output voltage of the DC-to-DC converter for example). This energy store, called "upstream store", is for example a capacitive store supplied with power by the voltage regulator stage 21.
[0034] Consequently, it is the detection of full charging of the energy store that brings about the change to the active state of the signal SHDN for controlling the activation of the main DC-to-DC converter 22.
[0035] From the production point of view, the main DC-to-DC converter 22 and the startup module 24 are for example transistor stages whose structure, which is otherwise known, is not detailed here.
[0036] The second DC-to-DC converter stage 23, secondary converter, is a multi-voltage DC-to-DC converter having a conventional structure that is also known. However, in the context of the present disclosure, its activation, as for the first converter stage 22, is controlled by a control input to which it is necessary to apply a signal allowing the converter to be activated.
[0037] This control signal (RUN) is produced by the startup module 25, which activates this signal as soon as the voltage VM is established and sufficiently stable to withstand the inrush current caused by the startup of the secondary DC-to-DC converters.
[0038] In order to achieve such conditions, the first converter stage 22 also has an energy store (not shown in the figure) appropriately dimensioned to supply the energy necessary for startup in good time without any transient instability of the secondary DC-to-DC converters of the second stage 23. This energy store, called "downstream store", is for example a capacitive store supplied with power by the first DC-to-DC converter stage 22.
[0039] Consequently, it is the detection of full charging of the downstream energy store that brings about the change to the active state of the signal RUN for controlling the activation of the secondary DC-to-DC converters forming the second conversion stage 23. With regard to the second DC-to-DC conversion stage 23, a controller circuit 26 precisely sequences the establishment (i.e. the rise time) of the output voltages Vsn of the secondary DC-to-DC converters, so as to guarantee the sequence of establishment of the various voltages Vsn, the voltages Vsi = 3.3 V and Vs2 = 1.6 V for example, that is necessary in order to comply with the requirements of the programmable circuits and memories that the modules forming the HUB 12 may contain.
[0040] It should be noted here that the DC-to-DC converters forming the first and the second converter stage 22 and 23 are synchronized by an appropriate system frequency so as not to generate conducted and/or radiated electromagnetic interference.
It should also be noted that, depending on requirements, the secondary conversion stage 23 may be followed by a regulation stage (linear regulation) intended to create other standard voltages (2.5 V, 1.2 V, etc.).
[0041] Given the structure of the power supply module according to the present disclosure as described above, the operation of this module in startup mode (transient mode for establishing the delivered voltages) comprises three main phases, as illustrated in figure 3.
[0042] The first phase (phase 1) consists in establishing a low-value regulated shunt voltage VREG, typically lessthan 3 V, or shunt voltage, from the DC current flowing on the general power supply line 14 of the antenna.
[0043] The duration of this first phase depends on the time Tr1 necessary to achieve a perfectly established and stable voltage VREG, and on the time Ti necessary to charge an upstream energy store with a capacity sufficient to ensure the sequenced startup of the first DC-to-DC conversion stage 22 without any instability (i.e. without oscillation of the main DC-DC converter).
[0044] The second phase (phase 2) consists in starting up the main DC-to-DC converter 22 after a delay (Delay 1) sufficient (i.e. at least equal to Tri+T) to allow the complete execution of the first phase (i.e. stabilization of the low-voltage shunt and charging of the upstream energy store).
[0045] This second phase depends on the time Tr2 necessary to achieve a stabilized voltage VM at the output of the main DC-to-DC conversion stage 22, and on the time T2 necessary to charge a downstream energy store sufficient to ensure the sequenced startup of the converters forming the second DC-to-DC conversion stage 23 without any instability (i.e. without oscillation of the secondary DC-DC converters).
[0046] At the end of the second phase, the main DC-to-DC converter stage 22 steps up the stable voltage from the voltage VREG (2.2 Vdc) to the voltage VM (5 Vdc). It thus makes it possible to accommodate the low shunt voltage, VREG (2.2 Vdc), delivered by the regulation stage 21.
[0047] The energy stored by the downstream capacitive energy store makes it possible to have the energy necessary to absorb the startup currents (inrush currents) of the secondary DC-to-DC converters without however requiring the delivery of an excessive output current from the main DC-to-DC conversion stage, which current would require overdimensioning this stage, simply to meet the demand of the secondary DC-DC converters at startup.
[0048] The third phase consists in starting up the secondary converters of the DC-to-DC conversion stage 23, responsible for producing the voltages Vsn (voltages Vsi = 3.3 V and Vs2 = 1.6 V for example). This phase begins after a delay Delay 2 sufficient (i.e. at least equal to Tr2+T2) to allow the complete execution of the second phase.
[0049] During this third phase, the startup of the secondary DC-to-DC converters is sequenced and finely controlled (rise time Trn of the secondary power supplies and delays Delay n) in order to accommodate firstly the energy available at the output of the main DC-to-DC conversion stage 22 and secondly in order to guarantee, as has been stated above, compliance with the requirements of the programmable circuits and memories.
The delays and the controlling of the rise times of each power supply make it possible to optimally distribute the energy necessary for the startup of each voltage converter, while at the same time ensuring compliance with the requirements of the programmable circuits (FPGA) and memories with regard to establishing their supply voltages.
[0050] It should be noted that, as has been stated above, the voltage regulator stage 21 delivers a low-level shunt voltage VREG and that the delivery of a higher shunt voltage (6.8 V instead of 2.2 V for example) would make it possible to achieve, for a comparable volume, an upstream energy store having a much larger capacity, and therefore capable of providing a much higher energy at startup, and hence to relax the startup sequencing constraints of the main DC-to-DC. Delivering a higher shunt voltage could even under some conditions allow operation without an energy store. However, delivering a higher shunt voltage would require the production of a much higher general supply voltage at the antenna head (corresponding to the production of several tens or even hundreds of local shunt voltages), which is incompatible with the desire to keep the supply voltage at a standard value.
Claims (8)
1. A power supply module intended to supply energy to the elements forming a module for acquiring data produced by a set of sensors, or HUB, from an electric power supply line supplying a constant DC current, wherein said power supply module comprises: - a regulator stage configured so as to be supplied with power by the electric power supply line and to produce a low-value shunt voltage; - a first DC-to-DC converter stage, or main converter, the activation of which is controlled by applying a first control signal (SHDN) to a control input, - a second DC-to-DC converter stage, or secondary converter, the activation of which is controlled by applying a second control signal (RUN) to a control input, - a first energy store, or upstream store, supplied with power by the voltage regulator stage and configured so as to supply the energy necessary to start up the first DC-to-DC converter stage when the first control signal (SHDN) is activated, - a second energy store, or downstream store, supplied with power by the first DC-to-DC converter stage and configured so as to supply the energy necessary to start up the second DC-to-DC converter stage when the second control signal (RUN) is activated, and - a redundant mechanism for protecting the current supply line, the protection consisting in establishing a short circuit (bypass) between its connection terminals to the power supply line in the event of failure of an electronic element within the HUB.
2. The power supply module as claimed in claim 1, wherein the protection mechanism is configured such that, in the event of failure of electronic circuits in the HUB that interrupts the current supply chain, it isolates the HUB from the power supply line of the antenna, said protection mechanism having a first level of protection and a second level of protection, which ensures that the power supply line of the antenna is protected in the event of failure of the circuits forming the first level of protection.
3. The power supply module as claimed in claim 2, wherein the first level of protection is implemented by a transistor circuit, and the second level of protection is implemented by a thyristor circuit.
4. The power supply module as claimed in any one of claims 1 to 3, wherein the module further comprises a first startup circuit that measures the charge of the upstream energy store and activates the first control signal (SHDN) when full charging of the upstream energy store is detected, and a second startup circuit that measures the charge of the downstream energy store and activates the second control signal (RUN) when full charging of the downstream energy store is detected.
5. The power supply module as claimed in any one of claims 1 to 4, wherein the module further comprises a controller circuit configured so as to control the establishment of the output voltages Vsn of the secondary converters of the second DC-to-DC converter stage, so as to establish the various voltages Vsn in a sequence that makes it possible to start up the programmable circuits and memories forming the HUB.
6. The power supply module as claimed in any one of claims 1 to 5, wherein the converters forming the first and the second DC-to-DC converter stages are synchronized by the same frequency chosen so as not to generate conducted and/or radiated electromagnetic interference with the elements of the antenna in which the HUB is integrated.
7. The power supply module as claimed in any one of claims 1 to 6, wherein the upstream electrical energy store and the downstream electrical energy store are two capacitive devices.
8. The power supply module as claimed in any one of claims 1 to 7, wherein the module is configured so as to implement an operating phase in nominal mode during which it supplies power to the various elements of the HUB, and an operating phase in transient startup mode that gradually establishes the voltages delivered by the module, this operating phase in startup mode having three main phases:
- a first phase, which consists in establishing a low-value regulated shunt voltage VREG from the DC current flowing on the general power supply line of the antenna; the duration of this first phase depending on the time Tr1 necessary to achieve a perfectly established and stable voltage VREG and on the time Ti necessary to achieve charging of the upstream energy store sufficient for the startup and the nominal operation of the first DC-to-DC conversion stage; - a second phase, which consists in starting up the main DC-to-DC converter after executing the first phase; the duration of this second phase depending on the time Tr2 necessary to achieve a stabilized voltage VM at the output of the main DC-to-DC conversion stage and on the time T2 necessary to achieve charging of the downstream energy store sufficient for the startup and the nominal operation of the second DC-to-DC conversion stage; - a third phase, which consists in starting up the secondary converters of the DC-to-DC conversion stage responsible for producing the voltages Vsn, after executing the second phase.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1701252A FR3074365B1 (en) | 2017-11-28 | 2017-11-28 | ELECTRICAL POWER SUPPLY SYSTEM FOR ACQUISITION MODULES OF A LINEAR ACOUSTIC LINEAR ANTENNA |
| FR1701252 | 2017-11-28 | ||
| PCT/EP2018/082736 WO2019105951A1 (en) | 2017-11-28 | 2018-11-27 | Electrical power supply system for the acquisition modules of a towed linear acoustic array |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2018377971A1 AU2018377971A1 (en) | 2020-06-18 |
| AU2018377971B2 true AU2018377971B2 (en) | 2023-09-07 |
Family
ID=61655815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2018377971A Active AU2018377971B2 (en) | 2017-11-28 | 2018-11-27 | Electrical power supply system for the acquisition modules of a towed linear acoustic array |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3718200A1 (en) |
| AU (1) | AU2018377971B2 (en) |
| FR (1) | FR3074365B1 (en) |
| WO (1) | WO2019105951A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111490533B (en) * | 2020-04-26 | 2020-12-29 | 中国科学院声学研究所 | Underwater power supply suitable for constant-current power supply type seabed observation network |
| CN114859426A (en) * | 2022-04-20 | 2022-08-05 | 中国矿业大学 | Electromagnetic detection transmitter system suitable for deep detection and control method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0629036A2 (en) * | 1993-06-10 | 1994-12-14 | Gec Alsthom T Et D Sa | Device for supplying a voltage to an electronic circuit, in particular to an electronic circuit associated to a current sensor placed on an electric line |
| EP2624429A2 (en) * | 2012-01-31 | 2013-08-07 | Semiconductor Components Industries, LLC | Method of forming a switched mode power supply controller device with an off mode and structure therefor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104377979B (en) * | 2013-08-14 | 2018-03-16 | 南京博兰得电子科技有限公司 | Inverter and its method of supplying power to and application |
-
2017
- 2017-11-28 FR FR1701252A patent/FR3074365B1/en active Active
-
2018
- 2018-11-27 WO PCT/EP2018/082736 patent/WO2019105951A1/en active Application Filing
- 2018-11-27 AU AU2018377971A patent/AU2018377971B2/en active Active
- 2018-11-27 EP EP18804667.6A patent/EP3718200A1/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0629036A2 (en) * | 1993-06-10 | 1994-12-14 | Gec Alsthom T Et D Sa | Device for supplying a voltage to an electronic circuit, in particular to an electronic circuit associated to a current sensor placed on an electric line |
| EP2624429A2 (en) * | 2012-01-31 | 2013-08-07 | Semiconductor Components Industries, LLC | Method of forming a switched mode power supply controller device with an off mode and structure therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3718200A1 (en) | 2020-10-07 |
| FR3074365A1 (en) | 2019-05-31 |
| FR3074365B1 (en) | 2019-11-08 |
| WO2019105951A1 (en) | 2019-06-06 |
| AU2018377971A1 (en) | 2020-06-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2018377971B2 (en) | Electrical power supply system for the acquisition modules of a towed linear acoustic array | |
| EP2704280B1 (en) | Power distribution cabinet | |
| US10110000B2 (en) | Power management and distribution architecture for a space vehicle | |
| US9211798B2 (en) | Multistage power supply system and method for providing uninterrupted power to vehicle circuitry | |
| WO2004062965A3 (en) | Dual voltage architecture for automotive electrical systems | |
| EP3322058A1 (en) | Electric power system for a space vehicle | |
| EP2605386A3 (en) | System and method for power distribution | |
| US10486836B2 (en) | Solar powered spacecraft power system | |
| EP3439161B1 (en) | Power distribution system | |
| US20120319494A1 (en) | Secure control mechanism for distributed photovoltaic system | |
| CN103066635B (en) | Electronic-controlled installation | |
| CN106253453A (en) | Uninterrupted power source and using method | |
| FR3026581B1 (en) | CONTINUOUS ENERGY TRANSFER | |
| RU2648233C2 (en) | Method and system of power supply of the aircraft | |
| US10630420B2 (en) | Hybrid energy storage modules for directed energy systems | |
| US20160122033A1 (en) | Electrical power distribution system with localized distribution conversion units | |
| US10461555B2 (en) | Battery charging for mobile devices | |
| WO2018234330A1 (en) | Electric power supply method and architecture for on-board domestic network | |
| JP4025553B2 (en) | Submarine cable power supply system | |
| CN110543208B (en) | Power supply, power-level integrated circuit and cantilever type three-axis stable tracking platform system | |
| DE102014219478B4 (en) | System and method for on-board charger operating power supply with automatic source change | |
| US20030157919A1 (en) | Battery Module with Wireless Receiver built in to power Distributed Sound System | |
| US20140020401A1 (en) | Method for conditioning a power supply for starting a jet engine | |
| CN201127003Y (en) | Power supply compensation circuit | |
| EP1519467B1 (en) | Power supply for an equipment and equipment power supply system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FGA | Letters patent sealed or granted (standard patent) |