CN201975766U - Large-power direct-current solid power controller with inverse time limit overcurrent protection - Google Patents
Large-power direct-current solid power controller with inverse time limit overcurrent protection Download PDFInfo
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- CN201975766U CN201975766U CN2010207005592U CN201020700559U CN201975766U CN 201975766 U CN201975766 U CN 201975766U CN 2010207005592 U CN2010207005592 U CN 2010207005592U CN 201020700559 U CN201020700559 U CN 201020700559U CN 201975766 U CN201975766 U CN 201975766U
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Abstract
The utility model relates to a large-power direct-current solid power controller with inverse time limit overcurrent protection, which is suitable for large-power power distribution systems. The large-power direct-current solid power controller is applied to equipments, such as motors, transformers and the like and the relay protection circuit of the power distribution system and comprises a high-precision current acquisition unit, a controller unit and an execution unit, wherein the high-precision current acquisition unit collects a current signal; the current signal is input into the AD port of a singlechip; the controller unit invokes a short circuit protection and inverse time limit overcurrent protection algorithm by combining with a zero parameter and a calibration parameter set by an upper computer to generate a driving signal; and Mosfet (metal-oxide-semiconductor field effect transistor) is controlled by a driving circuit to be switched on and off. The large-power direct-current solid power controller has the advantages of simple structure, strong antijamming capability, high sensitivity and high reliability. According to the large-power direct-current solid power controller, inverse time limit overcurrent protection can be realized, and an inverse time limit curve can be selected on the basis of the practical application environment.
Description
Technical field
The utility model relates to the high power solid state power controller, particularly relates to the high power DC solid-state power controller of being with inverse-time overcurrent protection.
Background technology
Solid-state power controller is based on semi-conductive a kind of circuit load supervisory control system, gathers current data from load circuit, judges according to current value whether loaded work piece is normal then.When detecting load current greater than certain rated value, according to the size of current value load is postponed to turn-off accordingly, avoid load to be damaged because of overcurrent, realize that the inverse time lag controls.
At present, the solid-state power controller inverse time guard method is mainly built by analog circuit.Constitute the overcurrent electric parameter by operational amplifier and form the loop, detecting decision circuitry and delay circuit forms, detect decision circuitry and insert amplifier input terminal with the output of overcurrent electric parameter for the electric parameter output of adjusting, circuit on-off switch in the capacitor charging discharging circuit of delay circuit in the level amplifying circuit after the output termination, dual-stage amplifier all is connected to adjustable feedback resistance, is used to adjust startup value and time base value.Control of inverse time lag of method has resistance and capacitance to determine in this, has shortcoming: low, the poor reliability of precision, and power consumption is big, complex circuit designs, thus limited its application.
The utility model content
The purpose of this utility model is to overcome above-mentioned defective; the high power DC solid-state power controller of band inverse-time overcurrent protection is provided; this controller is realized inverse-time overcurrent protection; simple in structure; the inverse time lag curve can be selected based on actual application environment; has very strong antijamming capability, high sensitivity and high reliability.
Above-mentioned purpose of the present utility model is achieved by following technical solution:
The high power DC solid-state power controller of band inverse-time overcurrent protection comprises current acquisition unit, controller unit and performance element, wherein:
The current acquisition unit: comprise guiding device, current detection circuit and magnetic shielding device, wherein guiding device extracts little electric current is gathered electric current as current detection circuit object by the form of shunting from large load current; Current detection circuit is responded to the current field that little current branch produces, and is converted to voltage signal and exports to controller unit through after the filtering; Magnetic shielding device protects little current branch and current detection circuit not to be subjected to other magnetic interference;
Controller unit: the voltage signal of received current collecting unit output, receive simultaneously that outside host computer is set and the parameter and calibrating parameters at zero point of output, voltage signal is converted into the normalized current signal, call inverse-time overcurrent protection and short-circuit protection, generate drive control signal, and export to performance element;
Performance element: comprise drive circuit and Mosfet, drive circuit receives the drive control signal of controller unit output, and control Mosfet opening or turn-offing.
In the high power DC solid-state power controller of above-mentioned band inverse-time overcurrent protection, controller unit comprises short-circuit protection module, inverse-time overcurrent protection module, EEPROM memory module, CAN communication module and A/D acquisition module, wherein;
CAN communication module: receive inverse time lag Curve selection, reset, short-circuit protection and correcting current parameter that host computer sends, and be stored in the EEPROM memory module;
The EEPROM memory module: inverse time lag Curve selection, reset, short-circuit protection and the correcting current parameter of reception CAN communication module output also stored; Inverse time lag Curve selection, reset, short-circuit protection and correcting current parameter are exported to short-circuit protection module and inverse-time overcurrent protection module respectively, and when the controller unit reset initialization, compose initial value for inverse time lag Curve selection, reset, short-circuit protection and correcting current parameter;
The AD acquisition module: the fixed interval time is gathered the voltage signal by the output of current acquisition unit, is converted to digital signal, exports to short-circuit protection module and inverse-time overcurrent protection module respectively;
Short-circuit protection module: the inverse time lag Curve selection, reset, short-circuit protection and the correcting current parameter that receive the output of EEPROM memory module; Receive the digital signal of AD acquisition module output, compare with default short circuit current threshold value, if described digital signal surpasses default short circuit current threshold value continuous three times, then be judged to be short circuit, send the control cut-off signals and give performance element, update mode simultaneously, and report the short-circuit protection action by the CAN communication module;
Inverse-time overcurrent protection module: the inverse time lag Curve selection, reset, short-circuit protection and the correcting current parameter that receive the output of EEPROM memory module; Receive the digital signal of AD acquisition module output; AD gathers when reaching set point number and carries out mean filter, and puts and gather complement mark for true, and average result is in conjunction with the inverse-time overcurrent protection parameter; in major cycle, finish the inverse time lag and calculate and parameter update, and the result is exported to performance element.
In the high power DC solid-state power controller of above-mentioned band inverse-time overcurrent protection; current detection circuit in the current acquisition unit comprises Hall current detection chip and filter circuit; wherein the Hall current detection chip is responded to the current field that little current branch produces; and being converted to voltage signal, filter circuit carries out voltage signal to export to controller unit after the filtering.
In the high power DC solid-state power controller of above-mentioned band inverse-time overcurrent protection; guiding device in the current acquisition unit is made up of electric current leading-off rods and metal flow guide bar; diverter branch and non-collection branch road wherein are set on the metal flow guide bar; described two branch roads are because of sectional area difference resistance value difference; the size of current difference of two branch roads is flow through in assurance; realize shunting, wherein the little electric current in the diverter branch is gathered the object of electric current as current detection circuit.
In the high power DC solid-state power controller of above-mentioned band inverse-time overcurrent protection; magnetic shielding device in the current acquisition unit is a U type magnetic shielding cover; tip upside down on the horizontal component flow guide bar of diverter branch; and wrap the magnetic induction part in the electromagnetic detection circuitry under the horizontal component flow guide bar, be not subjected to other magnetic interference with protective current testing circuit and diverter branch.
The utility model compared with prior art has following advantage:
(1) the utility model controller has very strong antijamming capability, and the reliability height when current acquisition, adopts the magnetic isolation technology, the interference of avoiding big electric current to produce; After current acquisition is finished, adopt peak filtering and the mean filter mode that combines, current acquisition is accurate, and antijamming capability is strong, can effectively avoid the misoperation of power controller;
(2) the current acquisition unit adopts the metal flow guide bar implementation structure of special shape to shunt in the utility model controller, flow guide bar flows through whole load currents, the special metal branch of shape belongs to the part of flow guide bar, different according to branch and main 's sectional area, determined to distribute in the branch share of the load current that flows through, the installation site that cooperates the magnetic induction chip, the range of the range of magnetic induction chip and magnetic induction chip and load current size, can change the sectional area of flow guide bar branch and length to adapt to the different loads situation, the use of this guiding device has reduced the volume of position of splitter, guarantee that large load current also can be suitable for, enlarged the range of current acquisition simultaneously;
(3) the magnetic shielding cover protective current detection module and the diverter branch of current acquisition unit in the utility model controller, the position that install the size of radome and it guarantees to collect the magnetic line of force of all gathering current component in the required diverter branch, the high-intensity magnetic field that shielding surrounding magnetic field and non-diverter branch form, strengthen and gather the magnetic field that branch road forms, improved the precision of gathering electric current;
(4) the utility model controller response height, the parameter and calibrating parameters at zero point that control unit is set in conjunction with host computer, call short-circuit protection and inverse-time overcurrent protection, produce drive signal, control opening or turn-offing of Mosfet by drive circuit, the short-circuit protection algorithm is finished in timer interrupts, regularly accurately, be active in one's movements, can effectively protect load;
(5) simple, the convenience of adjusting of the utility model controller architecture, control is flexible, and the inverse time lag curve can be selected based on actual application environment, and inverse time lag curve and short-circuit protection parameter can onlinely be adjusted, set;
(6) the utility model controller application is wide, can be used for industrial monitoring, electronic load protection, and a plurality of fields such as aircraft space flight and aviation.
Description of drawings
Fig. 1 is the utility model controller architecture schematic diagram;
Fig. 2 is a current acquisition cellular construction schematic diagram in the utility model controller;
Fig. 3 is a guiding device structural representation in the utility model controller;
Fig. 4 is a diverter branch segmentation schematic diagram in the utility model guiding device;
Fig. 5 is the utility model controller middle controller cell operation flow chart;
Fig. 6 is a driver element schematic diagram in the utility model controller.
Embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments:
Be illustrated in figure 1 as the utility model controller architecture schematic diagram, the utility model comprises current acquisition unit, controller unit and performance element as seen from the figure, wherein the current acquisition unit comprises guiding device, current detection circuit and magnetic shielding cover composition, is illustrated in figure 2 as current acquisition cellular construction schematic diagram in the utility model controller; Be illustrated in figure 3 as guiding device structural representation in the utility model controller, the metal guiding device that guiding device designs for special construction, the metal guiding device is made up of with metal flow guide bar 2 the electric current leading-off rods 1 that is arranged on the circuit board 3, wherein electric current diversion rod 1 is a column structure, metal flow guide bar 2 is the structure splitter section, guiding device flows through whole load currents, form load circuit, the middle part of flow guide bar 2 is divided into diverter branch and two branch roads of non-collection branch road, two ends unite two into one respectively again, the electric current sum is the load current size in diverter branch and the non-collection branch road, diverter branch comprises a section vertical with circuit board 3, c section and the b section parallel with circuit board 3 are illustrated in figure 4 as diverter branch segmentation schematic diagram in the utility model metal flow guide bar.Different according to the sectional area of diverter branch and non-collection branch road and length, and in the diverter branch b section be arranged on the distance of the Hall current detection chip 4 on the circuit board 3, determine to distribute on the diverter branch share of the load current that flows through, cooperate in the practical application range of Hall current detection chip 4 and load current size, sectional area that can be by changing flow guide bar diverter branch, non-collection branch road and length are to adapt to the different loads situation.
Current detection circuit is made up of Hall current detection chip 4 and filter circuit, the current field that produces of Hall current detection chip 4 inductive shunt branch roads wherein, and be converted to voltage signal, filter circuit carries out voltage signal to export to controller unit after the filtering.Current detection circuit is arranged on the circuit board 3, and be in diverter branch under, guarantee that the magnetic induction point on the Hall current detection chip 4 is vertical with the magnetic line of force of b section branch road generation in the diverter branch, parallel with the magnetic line of force that non-collection branch road produces, the magnetic field that is parallel to circuit board face 3 that makes b section branch current produce is responded to by Hall current detection chip 4 and is gathered, all the other magnetic fields that produced perpendicular to the flow guide bar of circuit board 3 part are all inconsistent and can not influence collection with the direction in Hall current detection chip 4 reception magnetic fields, at this moment, what chip was sensed mainly is the current field of little current branch, through processing of circuit, the voltage signal of output reflected load current value is given microprocessor.Such design, avoided chip excessive and saturated because of the load current of sensing, can not work, make this acquisition module go for the situation of large load current.
The position that install the size of magnetic shielding cover 5 and it guarantees to collect the magnetic line of force of all gathering required load current component, the high-intensity magnetic field that shielding surrounding magnetic field and non-diverter branch form.As shown in Figure 4; magnetic shielding cover 5 in the present embodiment is shaped as the U type; tip upside down on the horizontal component flow guide bar of diverter branch (on the b section flow guide bar); and wrap Hall current detection chip 4 under the horizontal component b section, realize that protective current testing circuit and structure splitter section are not subjected to other magnetic interference and operate as normal.
As shown in Figure 1, controller unit comprises short-circuit protection module, inverse-time overcurrent protection module, EEPROM memory module, CAN communication module and A/D acquisition module.
The CAN communication module receives inverse time lag Curve selection, reset, short-circuit protection and the correcting current parameter that host computer sends, and is stored in the EEPROM memory module;
The EEPROM memory module receives inverse time lag Curve selection, reset, short-circuit protection and the correcting current parameter of CAN communication module output and stores; Inverse time lag Curve selection, reset, short-circuit protection and correcting current parameter are exported to short-circuit protection module and inverse-time overcurrent protection module respectively, and when the controller unit reset initialization, compose initial value for inverse time lag Curve selection, reset, short-circuit protection and correcting current parameter;
AD acquisition module 0.25ms is at interval gathered the voltage signal of once being exported by the current acquisition unit, is converted to digital signal, exports to short-circuit protection module and inverse-time overcurrent protection module respectively;
The short-circuit protection module receives inverse time lag Curve selection, reset, short-circuit protection and the correcting current parameter of EEPROM memory module output; Receive the digital signal of AD acquisition module output, compare with default short circuit current threshold value, if digital signal surpasses default short circuit current threshold value continuous three times, then be judged to be short circuit, send the control cut-off signals and give performance element, update mode simultaneously, and report the short-circuit protection action by the CAN communication module;
The inverse-time overcurrent protection module receives inverse time lag Curve selection, reset, short-circuit protection and the correcting current parameter of EEPROM memory module output; Receive the digital signal of AD acquisition module output; AD gathers when reaching 8 times and carries out mean filter, and puts and gather complement mark for true, and average result is in conjunction with the inverse-time overcurrent protection parameter; in major cycle, finish the inverse time lag and calculate and parameter update, and the result is exported to performance element.
Be illustrated in figure 5 as the utility model controller middle controller cell operation flow chart; controller is the Freesacle single-chip microcomputer; use outside 8M crystal oscillator; gather port by 12 AD, gather the voltage signal of current sensor output, in conjunction with the zero point and the calibrating parameters of host computer setting; voltage signal is converted into the normalized current signal; call inverse-time overcurrent protection algorithm and short-circuit protection algorithm, generate control signal, trigger drive circuit by the output of I/O mouth.Critical workflow is divided into Main function and Timer, two interrupt functions of CAN as shown in Figure 5, and flow chart is respectively shown in the (a) and (b) of Fig. 5, (c).
(1) Main function and inverse-time overcurrent protection
System powers on and calls the Main function, and the laggard major cycle of going into is finished in initialization, waits for position, electric current mean filter complement mark position, calls the inverse-time overcurrent protection algorithm, generates the relay status control command, refreshes the driving port.
Inverse time over-current protection is meant the protection that reduces automatically with the increase of short circuit current operate time.The tradition implementation method is built the protection timing architecture by hardware circuit; complex circuit designs not only; reliability is low; power consumption is also big; in case and the hardware circuit component parameters is determined; the inverse time lag curve can not be changed according to the thermal capacitance limit curve characteristic of protected equipment, adopts software algorithm just can avoid such problem.
Based on fuse effect and heat balance principle, inverse-time overcurrent algorithm in design the utility model.As everyone knows, when electric current I is passed through fuse, fuse will produce certain heat.In the very short time Δ t, newly-generated heat is:
ΔE
I＝I
2RΔt (1)
In the following formula, R is a fuse resistance.If the temperature of fuse is higher than ambient temperature, fuse just exists cooling, and when not having electric current to pass through fuse, the cooling of fuse is index law and changes, and promptly Cun Chu heat will be the index law decay in time.
In the following formula, τ is the time constant of heat decay; E
0Be initial heat.(at initial time, big more if fuse temperature and ambient temperature differ, E
0Big more, if the fuse temperature equates E then with ambient temperature
0=0).Behind very short time Δ t
Taking all factors into consideration has electric current through fuse, and there is the situation of natural heat dissipation in fuse, can think approx that in very short time Δ t, new heat generates and natural heat dissipation carries out in two steps.That is:
Or
Actual heat E (t+ Δ t), on the numerical value between (4) (5) two formulas, yet the result of calculation of (4) (5) two formulas differs very little, therefore, can carry out approximate calculation with any same form in two formulas.In CPU, after the time of Δ t, can once calculate, when the accumulation heat surpassed certain threshold value (be equivalent to fuse and surpassed certain relative temperature), fuse will fuse, thereby plays the effect of overcurrent protection.Revise the timeconstant and the heat threshold value of heat decay, just can obtain different fuse characteristics, promptly corresponding different overcurrent protection curve.
Based on above-mentioned principle, different attenuation constants and heat threshold value are solidificated among the EEPROM of microprocessor, the host computer transmitting control commands is selected different inverse time protection curves by CAN communication, realizes control flexibly.
(2) timer interrupt function
Current acquisition, short-circuit protection and filtering algorithm are all finished in timer interrupts.Timer 0.25ms at interval produces once interruption, gathers primary current.Call the short-circuit protection algorithm after current acquisition is finished, the continuous AD conversion value that detects for three times surpasses default short circuit threshold value, then is judged to be short circuit, turn-offs output, update mode, and task of submitting to an active to report.The sampling step number reaches 8 times, calculates AD mean value, puts the filtering complement mark for true, treats to carry out subsequent treatment when main program detects this sign, so constantly back and forth carries out.
Short-circuit protection can move by faster execution short-circuit protection in the highest timer of priority interrupts, and the shortest time can reach 0.75ms, adopts three checks to determine simultaneously, filters spike, effectively avoids the misoperation of power controller.
(3) CAN interrupt function
CAN interrupts receiving the host computer order, operational orders such as execution parameter setting and inverse time lag Curve selection.
Be illustrated in figure 6 as performance element schematic diagram in the utility model controller, performance element comprises drive circuit and Mosfet.Slave controller unit output control signal Ctlin, by photoisolator U1 control Mosfet chip for driving, Mosfet chip for driving output 10V voltage signal drives Mosfet and opens or turn-off, as Fig. 6.
When output signal Ctlin was high level, photoelectric isolated chip U1 ended, Mosfet chip for driving U2 pin IN+ input low level, and P_OUT turn-offs, and N_OUT opens, and Ctlout is dragged down, and this moment, Mosfet turn-offed, and high-power solid power controller also is an off state; When output signal Ctlin is low level, photoelectric isolated chip U1 conducting, the IN+ input high level, P_OUT opens, and N_OUT turn-offs, and Ctlout is a high level, drives the Mosfet conducting, the power controller conducting.
The content that is not described in detail in the utility model specification belongs to this area professional and technical personnel's known technology.
Claims (5)
1. be with the high power DC solid-state power controller of inverse-time overcurrent protection, it is characterized in that: comprise current acquisition unit, controller unit and performance element, wherein:
The current acquisition unit: comprise guiding device, current detection circuit and magnetic shielding device, wherein guiding device extracts little electric current is gathered electric current as current detection circuit object by the form of shunting from large load current; Current detection circuit is responded to the current field that little current branch produces, and is converted to voltage signal and exports to controller unit through after the filtering; Magnetic shielding device protects little current branch and current detection circuit not to be subjected to other magnetic interference;
Controller unit: the voltage signal of received current collecting unit output, receive simultaneously that outside host computer is set and the parameter and calibrating parameters at zero point of output, voltage signal is converted into the normalized current signal, call inverse-time overcurrent protection and short-circuit protection, generate drive control signal, and export to performance element;
Performance element: comprise drive circuit and Mosfet, drive circuit receives the drive control signal of controller unit output, and control Mosfet opening or turn-offing.
2. the high power DC solid-state power controller of band inverse-time overcurrent protection according to claim 1, it is characterized in that: described controller unit comprises short-circuit protection module, inverse-time overcurrent protection module, EEPROM memory module, CAN communication module and A/D acquisition module, wherein;
CAN communication module: receive inverse time lag Curve selection, reset, short-circuit protection and correcting current parameter that host computer sends, and be stored in the EEPROM memory module;
The EEPROM memory module: inverse time lag Curve selection, reset, short-circuit protection and the correcting current parameter of reception CAN communication module output also stored; Inverse time lag Curve selection, reset, short-circuit protection and correcting current parameter are exported to short-circuit protection module and inverse-time overcurrent protection module respectively, and when the controller unit reset initialization, compose initial value for inverse time lag Curve selection, reset, short-circuit protection and correcting current parameter;
The AD acquisition module: the fixed interval time is gathered the voltage signal by the output of current acquisition unit, is converted to digital signal, exports to short-circuit protection module and inverse-time overcurrent protection module respectively;
Short-circuit protection module: the inverse time lag Curve selection, reset, short-circuit protection and the correcting current parameter that receive the output of EEPROM memory module; Receive the digital signal of AD acquisition module output, compare with default short circuit current threshold value, if described digital signal surpasses default short circuit current threshold value continuous three times, then be judged to be short circuit, send the control cut-off signals and give performance element, update mode simultaneously, and report the short-circuit protection action by the CAN communication module;
Inverse-time overcurrent protection module: the inverse time lag Curve selection, reset, short-circuit protection and the correcting current parameter that receive the output of EEPROM memory module; Receive the digital signal of AD acquisition module output; AD gathers when reaching set point number and carries out mean filter, and puts and gather complement mark for true, and average result is in conjunction with the inverse-time overcurrent protection parameter; in major cycle, finish the inverse time lag and calculate and parameter update, and the result is exported to performance element.
3. the high power DC solid-state power controller of band inverse-time overcurrent protection according to claim 1; it is characterized in that: the current detection circuit in the described current acquisition unit comprises Hall current detection chip and filter circuit; wherein the Hall current detection chip is responded to the current field that little current branch produces; and being converted to voltage signal, filter circuit carries out voltage signal to export to controller unit after the filtering.
4. the high power DC solid-state power controller of band inverse-time overcurrent protection according to claim 1; it is characterized in that: the guiding device in the described current acquisition unit is made up of electric current leading-off rods (1) and metal flow guide bar (2); diverter branch and non-collection branch road wherein are set on the metal flow guide bar (2); described two branch roads are because of sectional area difference resistance value difference; the size of current difference of two branch roads is flow through in assurance; realize shunting, wherein the little electric current in the diverter branch is gathered the object of electric current as current detection circuit.
5. the high power DC solid-state power controller of band inverse-time overcurrent protection according to claim 1; it is characterized in that: the magnetic shielding device in the described current acquisition unit is a U type magnetic shielding cover; tip upside down on the horizontal component flow guide bar of diverter branch; and wrap the magnetic induction part in the electromagnetic detection circuitry under the horizontal component flow guide bar, be not subjected to other magnetic interference with protective current testing circuit and diverter branch.
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| CN102570412A (en) * | 2011-12-29 | 2012-07-11 | 航天时代电子技术股份有限公司 | DC solid-state power controller |
| CN103094875A (en) * | 2012-12-26 | 2013-05-08 | 中国航天时代电子公司 | Solid state power controller based on microcontroller |
| CN103337834A (en) * | 2013-06-09 | 2013-10-02 | 常熟市九洲电器设备有限公司 | Overcurrent protection method for motor |
| CN103926455A (en) * | 2013-01-10 | 2014-07-16 | 中兴通讯股份有限公司 | Method and apparatus for identification of DC input voltage transient speed |
| CN104656476A (en) * | 2013-11-20 | 2015-05-27 | 通用电气航空系统有限公司 | Solid State Power Controller For An Aircraft |
| CN106370922A (en) * | 2016-08-31 | 2017-02-01 | 中国科学院空间应用工程与技术中心 | Solid state power controller and fault current record method |
| CN108332390A (en) * | 2017-12-19 | 2018-07-27 | 青岛海尔空调器有限总公司 | A kind of air-conditioner control method and air conditioner |
| CN109066977A (en) * | 2018-08-08 | 2018-12-21 | 上海宇航系统工程研究所 | A kind of distribution aerospace craft intelligence power supply-distribution system |
| CN111521863A (en) * | 2020-04-07 | 2020-08-11 | 上海帆声图像科技有限公司 | Signal output and detection precision optimizing system |
| CN113342122A (en) * | 2021-06-04 | 2021-09-03 | 上海空间电源研究所 | Long-delay all-solid-state power tuner for space |
| CN114237336A (en) * | 2021-11-24 | 2022-03-25 | 北京卫星制造厂有限公司 | Solid state power controller |
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| CN102570412B (en) * | 2011-12-29 | 2014-11-05 | 航天时代电子技术股份有限公司 | DC solid-state power controller |
| CN102570412A (en) * | 2011-12-29 | 2012-07-11 | 航天时代电子技术股份有限公司 | DC solid-state power controller |
| CN103094875A (en) * | 2012-12-26 | 2013-05-08 | 中国航天时代电子公司 | Solid state power controller based on microcontroller |
| CN103094875B (en) * | 2012-12-26 | 2015-09-02 | 中国航天时代电子公司 | A kind of solid-state power controller based on microcontroller implementation |
| CN103926455A (en) * | 2013-01-10 | 2014-07-16 | 中兴通讯股份有限公司 | Method and apparatus for identification of DC input voltage transient speed |
| CN103337834A (en) * | 2013-06-09 | 2013-10-02 | 常熟市九洲电器设备有限公司 | Overcurrent protection method for motor |
| CN104656476A (en) * | 2013-11-20 | 2015-05-27 | 通用电气航空系统有限公司 | Solid State Power Controller For An Aircraft |
| CN106370922B (en) * | 2016-08-31 | 2020-01-31 | 中国科学院空间应用工程与技术中心 | solid-state power controller and fault current recording method thereof |
| CN106370922A (en) * | 2016-08-31 | 2017-02-01 | 中国科学院空间应用工程与技术中心 | Solid state power controller and fault current record method |
| CN108332390A (en) * | 2017-12-19 | 2018-07-27 | 青岛海尔空调器有限总公司 | A kind of air-conditioner control method and air conditioner |
| CN109066977A (en) * | 2018-08-08 | 2018-12-21 | 上海宇航系统工程研究所 | A kind of distribution aerospace craft intelligence power supply-distribution system |
| CN109066977B (en) * | 2018-08-08 | 2021-09-28 | 上海宇航系统工程研究所 | Distributed intelligent power supply and distribution system for aerospace vehicle |
| CN111521863A (en) * | 2020-04-07 | 2020-08-11 | 上海帆声图像科技有限公司 | Signal output and detection precision optimizing system |
| CN113342122A (en) * | 2021-06-04 | 2021-09-03 | 上海空间电源研究所 | Long-delay all-solid-state power tuner for space |
| CN114237336A (en) * | 2021-11-24 | 2022-03-25 | 北京卫星制造厂有限公司 | Solid state power controller |
| CN115580016A (en) * | 2022-10-14 | 2023-01-06 | 哈尔滨工业大学 | ZYNQ-based aircraft alternating-current remote power distribution unit and power distribution control method |
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Granted publication date: 20110914 Termination date: 20181231 |