CN104570853A - High-reliability combined intelligent space power supply system - Google Patents
High-reliability combined intelligent space power supply system Download PDFInfo
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- CN104570853A CN104570853A CN201410795047.1A CN201410795047A CN104570853A CN 104570853 A CN104570853 A CN 104570853A CN 201410795047 A CN201410795047 A CN 201410795047A CN 104570853 A CN104570853 A CN 104570853A
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- G—PHYSICS
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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Abstract
The invention discloses a high-reliability combined intelligent space power supply system, relates to the field of satellite solar power supply systems and aims to solve problems that an existing power supply system adopts a single-controller on-duty framework and only can be switched to a backup mode while falls into failures, and the whole system is corrupted while failing to work as a slave machine only can passively perform an instruction of a host machine due to a distributed design. The system is logically divided into a resolution layer, a maintenance layer and a power supply system from top to bottom, wherein a special interface for communication and control is arranged between layers. The equipment between layers can be used for mutually monitoring, but cannot be controlled. The upper layer can be used for directly or indirectly controlling the lower layer, the lower layer also can be used for monitoring the upper layer, so that if the upper layer fails to work, the faults can be reported to a top layer or a satellite house-keeping computer through the interface between layers. According to the high-reliability combined intelligent space power supply system, fault tracing, fault isolating and fault self-healing can be realized through detection of other parts when any part at any layer has faults.
Description
Technical field
The present invention relates to satellite solar power supply system field, be specifically related to a kind of to controller, this power-supply system can realize fault tracing, fault isolation and fault recovery.
Background technology
The space apparatus such as satellite generally need to be equipped with solar charging/discharging power-supply system, and the mode of existing spatial overlay many employings dual-host backup realizes its high reliability, if main alternate device lost efficacy, need to be switched to alternate device and work on.But this scheme is only the backup mode of component-level, and this backup mode cannot realize system self-healing.
Civilian power-supply controller of electric generally adopts Single Controller to control, or adopts Distributed Design.Single Controller then cannot complete control if there is fault.Distributed Design generally by a main frame as main control end, other carry out state acquisition (voltage, discharge current, charging current, cell array state etc. as accumulator) from machine to subsystems, give main frame the information of subsystem to judge, main frame is only had to have the right to control the operation (charge as forbidden, forbid electric discharge) of subsystems, and relative main frame, can only passively perform from machine.If therefore main frame breaks down, cause the collapse of whole system.
Summary of the invention
The present invention is for solving existing power supply system owing to adopting Single Controller framework on duty, cause breaking down and can only be switched to the pattern of backup, and can only passive execution host command from machine when adopting distributed design, cause the problems such as whole system collapse when going wrong, a kind of highly reliable combination intelligent spatial overlay is provided.
Highly reliable combination intelligent spatial overlay, this system is made up of three etale topology structures, is divided into power supply layer, maintenance level and phantom from top to bottom;
Described power supply layer forms by organizing independently-powered unit more, often organizes independently-powered unit and works alone, and to complete in internal control, group logic monitors in measurement monitoring, group, bypass the immediate leadership in group warning and higher level control intervention task; Described power supply layer is connected with whole star load, realizes the power supply of whole star;
Described maintenance level is made up of multiple supervisory controller, each supervisory controller controls one group of independently-powered unit in power supply layer, communication bus interface is provided with between maintenance level and house keeping computer, each supervisory controller is communicated with house keeping computer by bus interface, realizes Star Service response, at the same level to evaluate, details reads, restarts resets, the function of foreign intervention and the rejecting of independently-powered unit;
The hardware ballot circuit group that described phantom is built by triplication redundancy circuit forms, and the information that phantom and external reception TT&C system send, accesses again to the resource rejected; Hardware ballot circuit group completes that rudimentary warning is included, supervisory controller resets, supervisory controller is rejected in maintenance level, in power supply layer independently-powered unit resets, independently-powered unit is rejected, resource consolidation task.
Beneficial effect of the present invention: the present invention proposes a kind ofly can to review for each fault, can isolate, can the space apparatus power-supply system of self-healing.In whole power-supply system, any one level, any one part there occurs fault can realize fault tracing, fault isolation and fault self-recovery by the detection of other parts.
If the some independently-powered unit of power supply layer break down, then maintenance level supervisory controller can by the bus of this independently-powered unit and other independently-powered unit to its supervision Timeliness coverage and first to restarting.If still cisco unity malfunction after restarting, the information that can provide according to other independently-powered unit is carried out judgement and is directly controlled, if directly control unsuccessful this part can being rejected from system.
If maintenance level supervisory controller breaks down, the hardware ballot circuit group to phantom is sent warning by many groups of independently-powered unit of power supply layer, if the enough ballot of hardware at most circuit groups that warning accumulates within a certain period of time reset to relevant supervisory controller.If this equipment is still reported an error after repeatedly resetting, then hardware ballot circuit group eliminates system this supervisory controller, is controlled the state-detection of each independently-powered unit of power supply layer by the hardware ballot circuit group of phantom.In addition, other supervisory controllers with layer can send this supervisory controller failure message to house keeping computer, and house keeping computer tunable TT&C system coordinates failture evacuation.
If hardware ballot circuit group breaks down, then the supervisory controller of maintenance level is reported earthward by the communication between house keeping computer, ground controls the hardware ballot circuit group of phantom by TT&C system, thus the part of mistake rejecting again connecting system is corrected mistakes.
Accompanying drawing explanation
Fig. 1 is the present invention's highly reliable combination intelligent spatial overlay logical topology chart.
Fig. 2 is the present invention's highly reliable combination intelligent spatial overlay equipment connecting relation sketch.
Fig. 3 is the structural representation of an independently-powered unit in the present invention.
Embodiment
Embodiment one, composition graphs 1 to Fig. 3 illustrate present embodiment, highly reliable combination intelligent spatial overlay, and this system from top to bottom, can be divided into the design of phantom, maintenance level and power supply layer three aspects from logical level.There is special interface for communication between layers and control.Mutually can monitor each other with each equipment between layer, but can not control.Upper strata directly can control lower floor or indirectly control (reset or eliminate system), lower floor also monitors upper strata simultaneously, to report by interface between layers if find to break down in direct upper strata to top layer or to house keeping computer.At phantom, be made up of the hardware ballot circuit group of a triplication redundancy.This circuit group adopts the SPARTAN-6 chip of XILINX company to realize having the hardware ballot circuit group of triplication redundancy.Maintenance level is made up of n supervisory controller, and the C8051F040 that described supervisory controller is generated by Silicon Laboratories Inc realizes, and each supervisory controller controls the independently-powered unit of m group below.N and m is positive integer, and the function major part between each layer is all safeguarded by software simulating.
Power supply layer is the lowermost layer of whole electric power system, and it is the basis that energy produces, and it is connected with whole star load and realizes the power supply of whole star.This layer is made up of several independently-powered unit.Independently-powered unit can work independently, and it can complete in internal control, group by hardware circuit and software programming warning of bypassing the immediate leadership in logic monitors, group in measurement monitoring, group, group leader bypasses the immediate leadership warning, higher level controls intervention task.
The specific tasks of independently-powered unit comprise:
1) internal control---the built-in slave computer of independently-powered unit reads the status information of independently-powered unit inside in real time, and carries out charge and discharge control according to current information to system;
2) measurement monitoring---the internal information of the slave computer reading in real time itself that independently-powered unit is built-in and other independently-powered unit in group, and this information is sent to supervisory controller by bus;
3) logic monitors in group---whether the built-in slave computer of independently-powered unit normally works according to the internal information of other independently-powered unit and other independently-powered unit of operation judges of other independently-powered unit in real time, and this judged result is sent to the supervisory controller of maintenance level by bus;
4) to bypass the immediate leadership in group warning---whether the built-in slave computer of independently-powered unit normally works according to the internal information of other independently-powered unit and other independently-powered unit of operation judges of other independently-powered unit in real time, and this judged result is sent to the hardware ballot circuit group of phantom by bus;
5) group leader bypasses the immediate leadership warning---the operation of the slave computer real time monitoring supervisory controller that independently-powered unit is built-in, if the operation of supervisory controller is considered to wrong, then sends to hardware ballot circuit group warning instruction of bypassing the immediate leadership by inner I/O;
6) higher level controls to get involved---and the steering order that independently-powered unit can send according to supervisory controller is walked around inner slave computer and is directly controlled the charging control circuit of independently-powered unit inside and charge/discharge control circuit.
Maintenance level is positioned at the centre of whole system, and it is made up of several supervisory controllers.Each supervisory controller controls one group of independently-powered unit of power supply layer.Maintenance level has communication bus interface outside with house keeping computer, and each supervisory controller can be communicated with house keeping computer by bus, realizes integrating and Star Service answering group internal information.Supervisory controller can complete Star Service response, peer evaluates, details reads, restart reset, foreign intervention and independently-powered unit rejects task.
Supervisory controller task comprises:
1) Star Service response---organize each power supply unit that can work independently with this and communicate, read the current system information of each unit that works alone, integrate backward house keeping computer and report;
2) evaluation at the same level---the response of other each supervisory controllers is made a determination, if the response of other supervisory controllers to house keeping computer is wrong, then inform that this supervisory controller of house keeping computer exists fault at subsequent time, be responsible for further handling failure by house keeping computer;
3) details reads---read the collection of each slave computer to the current state of all power supply units that can work independently, to implement the external control to certain power supply unit that works alone if desired;
4) reset is restarted---determine whether that there is some power-supply controllers breaks down by reading each unit assessment of fault information to other unit that work alone that works alone of contrast, if there are 5 different independently-powered unit to be fault to some independently-powered unit evaluation in 1 second, then the slave computer of this power supply unit that works alone is restarted;
5) if foreign intervention---had after restarting for 5 times in 100 seconds, this independently-powered unit is still determined fault, then send I/O instruction according to the identical information of 5 power supply unit collections to the independently-powered unit of this fault and carry out directly controlling to make it normally work;
6) if independently-powered unit is rejected---carried out external control after 60 seconds, certain independently-powered unit is still judged to fault, then this unit is rejected from electric power system.
Described supervisory controller is made up of single-chip microcomputer and relevant support circuit, and by the various controlling functions of software simulating, single-chip microcomputer is used as switch by the break-make controlling metal-oxide-semiconductor, realizes resetting and relevant device removing function to relevant device.
Phantom is positioned at the top of whole system, the hardware ballot circuit group that it is built by triplication redundancy circuit.Phantom can accept TT&C system and be sent to information in outside, again access the various resources rejected.Hardware ballot circuit group can complete that rudimentary warning is included, supervisory controller resets, supervisory controller is rejected, independently-powered unit resets, independently-powered unit is rejected, resource consolidation task.
Hardware ballot circuit group function comprises:
1) rudimentary warning is included---and Real-Time Monitoring also records the warning that the built-in slave computer of each independently-powered unit sends;
2) if supervisory controller resets---in 1 second, have 5 different independently-powered unit to give a warning, hardware ballot circuit group carries out reset operation to supervisory controller;
3) if supervisory controller is rejected---in 100 seconds, there are 5 supervisory controllers to be restarted, then supervisory controller cut the system of eliminating;
4) independently-powered unit resets---when this group supervisory controller is disallowable go out system after, if hardware ballot circuit group had more than 5 different independently-powered unit to think that the operation of some power supply units is wrong, then to this independently-powered unit slave computer reset in 1 minute;
5) independently-powered unit is rejected---when this group supervisory controller is disallowable go out system after, if there were 5 certain power supply unit slave computers to be restarted in 100 seconds, then this independently-powered unit is cut the system of eliminating;
6) resource consolidation---TT&C system, by the operation of hardware ballot circuit group, eliminates system to the system reset of having rejected, again connecting system or by some resource.
Described hardware ballot circuit group is realized by fpga chip and peripheral circuit.Fpga chip realizes triplication redundancy and relevant control function by hardware programming.Fpga chip is used as switch by the break-make controlling metal-oxide-semiconductor, realizes resetting and relevant device removing function to relevant device.
Composition graphs 2, house keeping computer is connected with three supervisory controllers by external data bus (CAN), and power supply layer is made up of 24 independently-powered unit, and every 8 independently-powered unit form one group, are responsible for maintenance by a supervisory controller.Inner 24 the independently-powered unit of power-supply controller of electric, a triplication redundancy hardware ballot circuit group are interconnected by internal data bus (CAN).Power supply layer is respectively organized independently-powered unit each status information inner and is all shared in each group by signal status information line.Supervisory controller and hardware ballot circuit group control the built-in function of each independently-powered unit by operation circuit, supply line is controlled by controlling metal-oxide-semiconductor, control each independently-powered unit slave computer to power and whether supervisory controller accesses electric power system (i.e. the state of gauge tap K1-1 ~ K1-8 controls the access state of independently-powered unit 1-1 ~ 1-8, and the state of gauge tap K1 and K3 controls the access state of supervisory controller 1 ~ 3).Independently-powered unit sends to the hardware ballot circuit group of phantom warning of bypassing the immediate leadership by operation circuit.Independently-powered unit understands the information of other independently-powered unit in this group by status information link.TT&C system controls the hardware ballot circuit of phantom by external control circuit, implements resource integration to existing resource.
Composition graphs 3, independently-powered unit comprises solar cell array element, isolating diode, peak power tracking circuit, charging control circuit, charge/discharge control circuit, state acquisition circuit, driving circuit, cascaded lithium ion batteries group (containing equalizing circuit), slave computer, slave computer power switch, bus interface, control output interface, control inputs interface, State-output interface, state input interface and power supply output interface.
The electric energy that solar cell array element produces first by isolating diode in order to protect cell array, then electric energy is by peak power tracking circuit, makes output voltage stabilization and makes electromotive power output maximum.After this, an electric energy part exports by power supply output interface, and it is charge in batteries that a part can flow through charging control circuit.
The electric energy that solar cell array element produces first by isolating diode in order to protect cell array, then electric energy is by peak power tracking circuit, makes output voltage stabilization and makes electromotive power output maximum.After this, an electric energy part exports by power supply output interface, and it is charge in batteries that a part can flow through charging control circuit.Slave computer controls charging control circuit by driving circuit and charge/discharge control circuit is accumulator cell charging and discharging, gathers various state, communicated by bus interface with outside by state acquisition circuit.
Charging control circuit controls work by driving circuit, is cascaded lithium ion charge in batteries.It is that lithium-ions battery carries out equilibrium that driving circuit controls lithium ion internal balance circuit.When busbar voltage is higher than threshold value, lithium-ions battery discharges by charge/discharge control circuit.The electric current of battery pack will be that slave computer is powered by K switch, and the control signal controllable switch K of control inputs interface input is that slave computer resets.State acquisition circuit gathers the simulating signal of whole independently-powered unit inside, as information such as accumulator battery voltage and each batteries voltage, charge controller input voltage, battery discharging electric current, battery charging current, these information are gathered by slave computer on the one hand, are transported to State-output interface for providing information source for other slave computers on the other hand.Control inputs interface and slave computer can be controlled charging control circuit, charge/discharge control circuit and battery equalizing circuit by driving circuit.Slave computer sends group leader to the hardware ballot circuit group of phantom to bypass the immediate leadership warning by controlling output interface.Slave computer replys the order of maintenance level and warning of bypassing the immediate leadership in decision-making level's issue group by bus interface.Described slave computer is made up of single-chip microcomputer and relevant support circuit, and by the various controlling functions of software simulating, single-chip microcomputer is used as switch by the break-make controlling metal-oxide-semiconductor, realizes the controlling functions to relevant device.The C8051F040 that slave computer controller is generated by Silicon Laboratories Inc realizes.
Claims (7)
1. highly reliable combination intelligent spatial overlay, this system is made up of three etale topology structures, is divided into power supply layer, maintenance level and phantom from top to bottom;
Described power supply layer is connected with the whole star load in outside, realize the power supply of whole star, power supply layer forms by organizing independently-powered unit more, often organizes independently-powered unit and works alone, and to realize in internal control, group logic monitors in measurement monitoring, group, bypass the immediate leadership in group warning and higher level control to get involved function;
Power supply layer is the lowermost layer of whole electric power system, and it is the basis that energy produces, and it is connected with whole star load and realizes.This layer is made up of several independently-powered unit.Independently-powered unit can work independently, and it can complete in internal control, group by hardware circuit and software programming warning of bypassing the immediate leadership in logic monitors, group in measurement monitoring, group, group leader bypasses the immediate leadership warning, higher level controls intervention task.
Described maintenance level is made up of multiple supervisory controller, each supervisory controller controls one group of independently-powered unit in power supply layer, communication bus interface is provided with between maintenance level and house keeping computer, each supervisory controller is communicated with house keeping computer by bus interface, realizes Star Service response, at the same level to evaluate, details reads, restarts resets, the function of foreign intervention and the rejecting of independently-powered unit;
The hardware ballot circuit group that described phantom is built by triplication redundancy circuit forms, and the information that phantom and external reception TT&C system send, accesses again to the resource rejected; Hardware ballot circuit group completes that rudimentary warning is included, supervisory controller resets, supervisory controller is rejected in maintenance level, in power supply layer independently-powered unit resets, independently-powered unit is rejected, resource consolidation task.
2. highly reliable combination intelligent spatial overlay according to claim 1, it is characterized in that, described often organize independently-powered unit comprise solar cell array element, isolating diode, peak power tracking circuit, charging control circuit, charge/discharge control circuit, state acquisition circuit, driving circuit, cascaded lithium ion battery pack, slave computer, slave computer power switch K, bus interface, control output interface, control inputs interface, State-output interface, state input interface and power supply output interface;
The electric energy that described solar cell array element produces protects cell array by isolating diode, described electric energy is by peak power tracking circuit, make output voltage stabilization and make electromotive power output maximum, exported by power supply output interface by an electric energy part for peak power tracking circuit, another part is cascaded lithium ion battery charging by charging control circuit; Slave computer controls charging control circuit by driving circuit and charge/discharge control circuit is the discharge and recharge of cascaded lithium ion battery pack, gathered the state of charging control circuit, charge/discharge control circuit and serial lithium battery group by state acquisition circuit, communicated with external unit by bus interface.
3. highly reliable combination intelligent spatial overlay according to claim 1 and 2, is characterized in that, described power supply layer to realize in internal control, group logic monitors in measurement monitoring, group, bypass the immediate leadership in group warning and higher level control to get involved function; Be specially:
Internal control, the built-in slave computer of independently-powered unit reads the status information of independently-powered unit inside in real time, and carries out charge and discharge control according to current status information to intelligent space power-supply system;
Measurement monitoring in group, the slave computer reading in real time itself that independently-powered unit is built-in and other organize the internal information of independently-powered unit, and this information is sent to the supervisory controller of maintenance level by bus;
Logic monitors in group, the built-in slave computer of independently-powered unit, in real time according to internal information and the operation of other independently-powered unit, judges whether other independently-powered unit normally works, and judged result is sent to the supervisory controller of maintenance level by bus;
To bypass the immediate leadership in group warning, whether the built-in slave computer of independently-powered unit normally works according to the internal information of other independently-powered unit and other independently-powered unit of operation judges in real time, and judged result is sent to the hardware ballot circuit group of phantom by bus;
Group leader bypasses the immediate leadership the operation of warning, the supervisory controller of the slave computer real time monitoring maintenance level that independently-powered unit is built-in, if the operation of supervisory controller is considered to wrong, then sends to hardware ballot circuit group warning instruction of bypassing the immediate leadership by inner I/O;
Higher level controls to get involved, and independently-powered unit is walked around inner slave computer according to the steering order that the supervisory controller of maintenance level sends and directly controlled the charging control circuit of independently-powered unit inside and charge/discharge control circuit.
4. highly reliable combination intelligent spatial overlay according to claim 1, it is characterized in that, supervisory controller in described maintenance level realizes Star Service response, at the same level to evaluate, details reads, restart resets, the function of foreign intervention and the rejecting of independently-powered unit, is specially:
Star Service is replied, and supervisory controller communicates with each independently-powered unit worked alone in this group, reads the current system information of the independently-powered unit that each works alone, and system information is integrated the report of backward house keeping computer;
Evaluation at the same level, the response of a certain supervisory controller to other each supervisory controller makes a determination, if the response of other supervisory controllers to house keeping computer is wrong, then inform that this supervisory controller of house keeping computer exists fault at subsequent time, be responsible for further handling failure by house keeping computer;
Details reads, and supervisory controller reads slave computer in each independently-powered unit to the collection of the current state of all independently-powered unit that can work independently, and realizes the external control to the independently-powered unit that certain works alone;
Restart reset, supervisory controller is by reading each independently-powered unit worked alone of contrast to the assessment of fault information of other independently-powered unit, determine whether that there is some independently-powered unit breaks down, if there is multiple different independently-powered unit to be fault to some independently-powered unit evaluation in some seconds, then the slave computer of this independently-powered unit is restarted;
Foreign intervention, if after having within some seconds and repeatedly restarting, this independently-powered unit is still determined fault, then the identical information gathered according to multiple power supply unit sends I/O instruction to the independently-powered unit of this fault, carries out directly controlling to make it normally work;
Independently-powered unit is rejected, if after having carried out external control some seconds, certain independently-powered unit is still judged to fault, then this unit is rejected from electric power system.
5. highly reliable combination intelligent spatial overlay according to claim 1, it is characterized in that, described hardware ballot circuit group realizes that rudimentary warning is included, supervisory controller resets, supervisory controller is rejected, independently-powered unit resets, independently-powered unit is rejected and the function of resource consolidation; Be specially:
Rudimentary warning is included, and Real-Time Monitoring also records the warning that the built-in slave computer of each independently-powered unit sends;
Supervisory controller resets, if there are multiple different independently-powered unit to give a warning within some seconds, then hardware ballot circuit group carries out reset operation to supervisory controller;
Supervisory controller is rejected, if there is repeatedly supervisory controller to be restarted within some seconds, then supervisory controller is cut the system of eliminating;
Independently-powered unit resets, when this group supervisory controller is disallowable go out system after, if hardware ballot circuit group had multiple above different independently-powered unit to think that the operation of some power supply units is wrong in some minutes, then to this independently-powered unit slave computer reset;
Independently-powered unit is rejected, when this group supervisory controller is disallowable go out system after, if there is repeatedly certain power supply unit slave computer to be restarted within some seconds, then this independently-powered unit is cut the system of eliminating;
Resource consolidation, TT&C system, by the operation of hardware ballot circuit group, eliminates system to the system reset of having rejected, again connecting system or by some resource.
6. highly reliable combination intelligent spatial overlay according to claim 4, it is characterized in that, when supervisory controller in described maintenance level realizes restarting reset, if there are 5 different independently-powered unit to be fault to some independently-powered unit evaluation in 1 second to 10 seconds, then the slave computer of this independently-powered unit is restarted; Foreign intervention, if after having in 50 seconds to 600 seconds and restarting for 5 times, this independently-powered unit is still determined fault, then the identical information gathered according to 5 power supply units sends I/O instruction to the independently-powered unit of this fault, carries out directly controlling to make it normally work;
Independently-powered unit is rejected, if carried out external control after 60 seconds to 600 seconds, certain independently-powered unit is still judged to fault, then this unit is rejected from electric power system.
7. highly reliable combination intelligent spatial overlay according to claim 5, it is characterized in that, when described hardware ballot circuit group realizes supervisory controller reset, if there were 5 different independently-powered unit to give a warning in 1 second to 10 seconds, then hardware ballot circuit group carries out reset operation to supervisory controller;
Supervisory controller is rejected, if there were 5 supervisory controllers to be restarted in 50 seconds to 600 seconds, then supervisory controller is cut the system of eliminating;
Independently-powered unit resets, when this group supervisory controller is disallowable go out system after, if hardware ballot circuit group had more than 5 different independently-powered unit to think that the operation of some power supply units is wrong, then to this independently-powered unit slave computer reset in 1 minute to 10 minutes;
Independently-powered unit is rejected, when this group supervisory controller is disallowable go out system after, if there were 5 certain power supply unit slave computers to be restarted in 50 seconds to 600 seconds, then this independently-powered unit is cut the system of eliminating.
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| CN111711256A (en) * | 2020-06-19 | 2020-09-25 | 上海空间电源研究所 | Distributed power supply system of spacecraft |
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| CN104570853B (en) | 2017-04-05 |
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