CN111900793A - Power supply system, medical system and control method - Google Patents

Power supply system, medical system and control method Download PDF

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Publication number
CN111900793A
CN111900793A CN202010850685.4A CN202010850685A CN111900793A CN 111900793 A CN111900793 A CN 111900793A CN 202010850685 A CN202010850685 A CN 202010850685A CN 111900793 A CN111900793 A CN 111900793A
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CN
China
Prior art keywords
power supply
power
supply system
load
circuit
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.)
Pending
Application number
CN202010850685.4A
Other languages
Chinese (zh)
Inventor
范洲远
江一峰
林阳阳
周培
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai United Imaging Healthcare Co Ltd
Original Assignee
Shanghai United Imaging Healthcare Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai United Imaging Healthcare Co Ltd filed Critical Shanghai United Imaging Healthcare Co Ltd
Priority to CN202010850685.4A priority Critical patent/CN111900793A/en
Publication of CN111900793A publication Critical patent/CN111900793A/en
Priority to US17/445,726 priority patent/US20220054330A1/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/062—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for AC powered loads
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/40—Testing power supplies
    • G01R31/42—AC power supplies
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
    • 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
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
    • H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/10—The network having a local or delimited stationary reach
    • H02J2310/20—The network being internal to a load
    • H02J2310/23—The load being a medical device, a medical implant, or a life supporting device
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The application relates to a power supply system, a medical system and a control method. The power supply system comprises a first power supply system, a second power supply system, a control circuit and a voltage detection and regulation circuit. The first power supply system is used for being connected with commercial power. The control circuit is used for being connected with the first power supply system and the second power supply system. The voltage detection and regulation circuit is respectively connected with the control circuit and the load. And if the first power supply system supplies power abnormally or does not supply power, the control circuit is used for switching the second power supply system to be conducted with the voltage detection and regulation circuit. The voltage detection and regulation circuit is used for monitoring the output voltage of the control circuit and regulating the output voltage of the voltage detection and regulation circuit to a preset voltage value. And if the load is the medical equipment, the power supply system selects a power supply loop through the control circuit so as to continuously supply power to the medical equipment. The stability of the power supply voltage can be ensured through the voltage detection and regulation circuit, and the normal work of the medical equipment is further ensured.

Description

Power supply system, medical system and control method
Technical Field
The present application relates to the field of medical technology, and in particular, to a power supply system, a medical system, and a control method.
Background
Conventional medical equipment is installed in a separate shielded room in a building and cannot be moved. For some special scenarios (e.g., outdoors, etc.), the medical device needs to be shipped to an outdoor location.
The medical equipment is suddenly powered off in the using process, so that the medical equipment cannot be normally used, and the life of a patient is threatened. Therefore, the medical equipment needs to be powered to ensure the stable operation of the system and reduce the probability of power failure. How to ensure the continuous power supply of the medical equipment is an urgent problem to be solved.
Disclosure of Invention
In view of the above, it is necessary to provide a power supply system, a medical system, and a control method for solving a problem of how to ensure continuous power supply to a medical device.
A power supply system comprises a first power supply system, a second power supply system, a control circuit and a voltage detection and regulation circuit. The control circuit is respectively connected with the first power supply system and the second power supply system. The voltage detection and regulation circuit is respectively connected with the control circuit and the load.
The control circuit is used for monitoring the power supply state of the first power supply system, and if the first power supply system supplies power normally, the control circuit controls the first power supply system to be conducted with the voltage detection and regulation circuit. If the first power supply system is abnormal in power supply or does not supply power, the control circuit controls the second power supply system to be conducted with the voltage detection and regulation circuit, and the voltage detection and regulation circuit regulates and controls the output voltage to a preset voltage value.
In one embodiment, the power supply system further comprises a third power supply system. And the third power supply system is used for being respectively connected with the voltage detection and regulation circuit and the load.
And when the first power supply system and the second power supply system can not supply power to the load, the third power supply system supplies electric energy to the load.
In one embodiment, the third power supply system includes a first energy storage module, a current regulation unit, a switching unit, and a control unit. The current adjusting unit is connected with the first energy storage module. The switch unit is used for being connected with the voltage detection and regulation circuit, the current regulation unit and the load respectively. The control unit is used for monitoring whether the switch unit has voltage input or not, and if the switch unit has no voltage input, the first energy storage module is controlled to supply power to the load through the current adjusting unit. If the switch unit has voltage input, the control unit controls the switch unit to be conducted with the load.
In one embodiment, the third power supply system includes a first energy storage module, a current regulation unit, a switching unit, and a control unit. The current adjusting unit is connected with the first energy storage module. The switch unit is used for being connected with the voltage detection and regulation circuit, the current regulation unit and the load respectively. The switch unit, the control circuit and the current adjusting unit are respectively connected with the control unit. The control unit acquires the power supply states of the first power supply system and the second power supply system through the control circuit. And if the first power supply system and the second power supply system supply power abnormally or do not supply power, the control unit controls the first energy storage module to supply power to the load through the current adjusting unit.
If the first power supply system and the second power supply system supply power normally, the control unit controls the switch unit to be conducted with the load.
In one embodiment, if the power of the first energy storage module is lower than a first power value and the switching unit has a voltage input, one of the first power system or the second power system simultaneously supplies power to the first energy storage module and the load.
In one embodiment, the current regulating unit includes an ac-dc conversion module, a charging module, a dc-dc boosting module, and a dc-ac inverting module. The switch unit and the control unit are respectively connected with the alternating current-direct current conversion module. The alternating current-direct current conversion module, the first energy storage module and the control unit are respectively connected with the charging module. The first energy storage module and the control unit are respectively connected with the direct current-direct current boosting module. The DC-AC inversion module is used for being respectively connected with the AC-DC conversion module, the DC-DC boosting module, the control unit and the load.
In one embodiment, the first power supply system includes a surge protection circuit and a filter circuit. The surge protection circuit is used for being connected with the mains supply. The surge protection circuit and the control circuit are respectively connected with the filter circuit.
In one embodiment, the second power system includes a power generation device. The power generation device is connected with the control circuit. If the mains supply is abnormal or does not supply power, the control circuit is used for controlling the power generation device to work, and the control circuit is also used for switching the power generation device to supply power to the load.
In one embodiment, the second power supply system further comprises a second energy storage device. The second energy storage device is connected between the power generation device and the control circuit.
In one embodiment, the power generation device is a solar power generation device. The second energy storage device comprises a junction station, a controller, a second energy storage module and an inverter. The junction station is connected with the solar power generation device. The controller is connected with the junction station. The second energy storage module is connected with the controller. The second energy storage module and the control circuit are respectively connected with the inverter.
A medical system comprising a power supply system as claimed in any one of the above embodiments and the load. The load is a medical device. The load is connected with the voltage detection and regulation circuit.
A method of controlling a power supply system, comprising:
and when the first power supply system supplies power normally, controlling the first power supply system to supply power to the load. And when the first power supply system cannot normally supply power and the second power supply system normally supplies power, controlling the second power supply system to supply power to the load. And when the first power supply system and the second power supply system can not supply power to the load, judging whether the electric energy stored by the third power supply system is larger than a first electric energy value. And if the electric energy stored by the third power supply system is larger than the first electric energy value, controlling the third power supply system to supply power to the load.
In one embodiment, the control method of the power supply system further includes:
if the third power system stores less than the first power value, one of the first power system or the second power system can provide power. Controlling the first power system or the second power system capable of providing power to supply power to the load while charging the third power system.
In one embodiment, if the third power system stores less than the first energy value and the first power system or the second power system is capable of providing electrical energy, one of the first power system or the second power system is controlled to supply power to the load while the other of the first power system or the second power system is controlled to charge the third power system.
The power supply system provided by the embodiment of the application comprises a first power supply system, a second power supply system, a control circuit and a voltage detection and regulation circuit. The first power supply system is used for being connected with commercial power. The control circuit is used for being connected with the first power supply system and the second power supply system. The voltage detection and regulation circuit is respectively connected with the control circuit and the load. The control circuit is used for monitoring the first power supply system. And if the first power supply system supplies power abnormally or does not supply power, the control circuit is used for controlling the second power supply system to be conducted with the voltage detection and regulation circuit. The voltage detection and regulation circuit is used for monitoring the voltage of the control circuit and regulating the output voltage of the voltage detection and regulation circuit to a preset voltage value. When the load is medical equipment, the power supply system selects a power supply loop through the control circuit so as to continuously supply power to the medical equipment. Through the power supply system, the voltage detection and regulation circuit ensures the stability of the power supply voltage, and further ensures the normal work of the medical equipment.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the power supply system provided in an embodiment of the present application;
fig. 2 is a schematic structural diagram of the power supply system provided in another embodiment of the present application;
fig. 3 is a schematic structural diagram of the power supply system provided in another embodiment of the present application.
Reference numerals:
10. a power supply system; 100. commercial power; 101. a medical device; 20. a first power supply system; 210. a surge protection circuit; 220. a filter circuit; 30. a second power supply system; 310. a power generation device; 320. a second energy storage device; 321. a junction station; 322. a controller; 323. a second energy storage module; 324. an inverter; 40. a control circuit; 410. a mains supply monitoring module; 420. a switching module; 50. a third power supply system; 510. a switch unit; 520. a first energy storage module; 530. a current adjusting unit; 540. a control unit; 531. an AC-DC conversion module; 532. a charging module; 533. a DC-DC boost module; 534. a DC-AC inverter module; 60. and a voltage detection and regulation circuit.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and those skilled in the art will be able to make similar modifications without departing from the spirit of the application and it is therefore not intended to be limited to the embodiments disclosed below.
The numbering of the components as such, e.g., "first", "second", etc., is used herein for the purpose of describing the objects only, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be considered as limiting the present application.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Referring to fig. 1, an embodiment of a power supply system 10 includes a first power system 20, a second power system 30, a control circuit 40, and a voltage detecting and regulating circuit 60. The control circuit 40 is connected to the first power supply system 20 and the second power supply system 30, respectively. The voltage detecting and regulating circuit 60 is connected to the control circuit 40 and the load 101, respectively. The control circuit 40 is used to monitor the first power supply system 20. If the power of the first power system 20 is normal, the control circuit 40 controls the first power system 20 and the voltage detecting and regulating circuit 60 to be conducted. If the first power system 20 is powered abnormally or not, the control circuit 40 is used to control the second power system 30 to be conducted with the voltage detecting and regulating circuit 60. The voltage detecting and regulating circuit 60 is used for regulating the output voltage to a preset voltage value.
In the power supply system 10 provided in the embodiment of the present application, the first power supply system 20 and the second power supply system 30 and the voltage detection and regulation circuit 60 are respectively connected to the control circuit 40. If the first power system 20 is powered abnormally or not, the control circuit 40 is used to control the second power system 30 to be conducted with the voltage detecting and regulating circuit 60. If the load 101 is a medical device. The power supply system 10 continuously supplies power to the medical equipment in a multi-power switching mode, so that the medical equipment is effectively prevented from being powered off. The voltage detecting and regulating circuit 60 is configured to monitor the voltage of the control circuit 40, and regulate the output voltage of the voltage detecting and regulating circuit 60 to a preset voltage value. Through the voltage detection and regulation circuit, the stability of the power supply voltage can be ensured, and the normal work of the medical equipment is further ensured.
The voltage detecting and regulating circuit 60 is used for collecting the input voltage of the control circuit 40. If the input voltage of the control circuit 40 is higher than the preset voltage of the load 101, the voltage detection and regulation circuit 60 performs voltage regulation to reduce the output voltage of the voltage detection and regulation circuit 60 to the preset voltage of the load 101. If the input voltage of the control circuit 40 is lower than the preset voltage of the load 101, the voltage detection and regulation circuit 60 performs voltage regulation to boost the output voltage of the voltage detection and regulation circuit 60 to the preset voltage of the load 101. The load 101 can normally work only when the power supply voltage is stable, and the service life is prolonged.
The preset voltage value is set according to the power consumption voltage of the load 101. Specifically, the preset voltage value is equal to the power consumption voltage of the load 101.
The voltage detecting and regulating circuit 60 also has a voltage feedback regulating function. The voltage detecting and regulating circuit 60 detects the outlet voltage of the voltage detecting and regulating circuit 60 in real time, and if the outlet voltage is not equal to the preset constant voltage, the voltage detecting and regulating circuit 60 performs feedback regulation on the output voltage.
The control circuit 40 is used to detect whether there is a voltage at the interface with the first power supply system 20. The control circuit 40 is also used to detect whether there is a voltage at the interface with the second power supply system 30.
When there is no voltage at the interface of the control circuit 40 and the first power system 20 and there is a voltage at the interface of the control circuit 40 and the second power system 30, the control circuit 40 automatically turns on the second power system 30.
The load 101 includes medical devices such as a CT device, an XR device, and an MRI device, or other medical devices.
The first power supply system 20 includes an energy storage power supply, a commercial power supply, a power generation power supply, or the like.
The normal power supply of the power supply system means that the output voltage and current are stable. When the power supply system is abnormal, namely the power supply system is abnormal, the power supply system has no current output, and the output voltage is overvoltage, undervoltage, unstable or insufficient.
In one embodiment, the second power system 30 is one or both of an energy storage system or a power generation system.
Referring also to fig. 2, in one embodiment, the load power supply system 10 further includes a third power supply system 50. The third power system 50 is connected to the voltage detecting and regulating circuit 60 and the load 101, respectively.
When the first power system 20 or the second power system 30 can provide power, the load power supply system 10 provides power to the load 101 through the first power system 20 or the second power system 30, and simultaneously charges the third power system 50. When neither the first power system 20 nor the second power system 30 can supply power to the load 101, the third power system 50 supplies power to the load 101. The load power supply system 10 reduces the probability of power failure of the load 101 by increasing the number of power supplies and controlling the plurality of power supplies to supply power in order.
The third power supply system 50 has not only an effect of storing electric energy but also an effect of adjusting the voltage of the current. The third power system 50 is an uninterruptible power supply.
In one embodiment, the third power system 50 is an energy storage system. When the first power system 20 supplies power normally and the third power system 50 is normal, the switching unit connects the voltage detecting and controlling circuit 60 and the third power system 50. The utility power 100 is connected to the third power system 50 through the first power system 20, the control circuit 40, and the voltage detecting and regulating circuit 60.
When the stored energy of the third power system 50 is lower than the first electric energy value and the first power system 20 supplies power normally, the first power system 20 supplies power to the load 101 and supplies power to the third power system 50, and the third power system 50 stores power. The first electric energy value is 50% -60% of the full electric charge of the third power supply system 50.
When the first power supply system 20 is not supplying power normally or not supplying power, and the second power supply system 30 is normal. The control circuit 40 is used for switching the second power system 30 to be conducted with the voltage detecting and regulating circuit 60. The second power supply system 30 supplies power to the load 101. When the stored energy of the third power system 50 is lower than the first electric energy value, the second power system 30 provides electric energy to the third power system 50 while providing electric energy to the load 101 through the third power system 50, and the third power system 50 stores the electric energy.
When the first power system 20 and the second power system 30 are normally powered and the stored energy of the third power system 50 is lower than the first electric energy value, the first power system 20 is controlled to provide electric energy for the load 101, the second power system 30 provides electric energy for the third power system 50, and the third power system 50 stores electric energy.
In another embodiment, when the first power system 20 and the second power system 30 are powered normally and the stored energy of the third power system 50 is lower than the first electric energy value, the second power system 30 is controlled to provide the electric energy to the load 101, the first power system 20 provides the electric energy to the third power system 50, and the third power system 50 stores the electric energy.
In one embodiment, the third power supply system 50 includes a first energy storage module 520, a current regulation unit 530, a switching unit 510, and a control unit 540. The current regulating unit 530 is connected to the first energy storage module 520. The switching unit 510 is respectively connected to the voltage detecting and regulating circuit 60, the current regulating unit 530 and the load 101. The switching unit 510 and the current adjusting unit 530 are respectively connected to the control unit 540, and the control unit 540 monitors whether the switching unit 510 has a voltage input. If the switch unit 510 has no voltage input, the control unit 540 controls the first energy storage module 520 to supply power to the load 101 through the current regulation unit 530. If the switch unit 510 has a voltage input, the control unit 540 controls the switch unit 510 to be directly connected to the load 101.
In one embodiment, if the power of the first energy storage module 520 is lower than a first power value and the switch unit 510 has a voltage input, one of the first power system 20 or the second power system 30 simultaneously supplies power to the first energy storage module 520 and the load 101.
In one embodiment, the first energy storage module 520, the current adjusting unit 530, the switching unit 510, and the control unit 540. The current regulating unit 530 is connected to the first energy storage module 520. The switching unit 510 is respectively connected to the voltage detecting and regulating circuit 60, the current regulating unit 530 and the load 101. The switching unit 510, the control circuit 40, and the current adjusting unit 530 are respectively connected to the control unit 540.
The control unit 540 obtains the power supply states of the first power supply system 20 and the second power supply system 30 through the control circuit 40. If the power of the first power system 20 and the second power system 30 is abnormal or not, the control unit 540 controls the first energy storage module 520 to supply power to the load 101 through the current regulation unit 530. If the power of the first power system 20 and the second power system 30 is normal, the control unit 540 controls the switch unit 510 to be conducted with the load 101.
In one embodiment, the first energy storage module 520 is a battery or an electrical storage device. The first energy storage module 520 includes a lithium battery, a lead-acid battery, a super capacitor, and the like.
In one embodiment, the control unit 540 is further configured to detect status information of each component and perform voltage regulation to meet the voltage requirement of the load 101.
Typically the load 101 operates using alternating current. When the load 101 is powered by the third power system 50, the first energy storage module 520 discharges, and the current regulation unit 530 is required to convert the dc power discharged from the first energy storage module 520 into ac power so as to provide the load 101 with electric energy.
When the first power system 20 supplies power normally and the first energy storage module 520 needs to be charged, the control unit 540 controls the switch unit 510 to turn on the voltage detection and regulation circuit 60 and the current regulation unit 530. The control unit 540 controls the current adjusting unit 530, so that the first power system 20 provides the load 101 with the electric energy through the current adjusting unit 530 and provides the first energy storage module 520 with the electric energy through the current adjusting unit 530. The first energy storage module 520 stores electric energy.
When the first energy storage module 520 does not need to be charged and the first power system 20 or the second power system 30 is supplying power normally, the control unit 540 controls the switch unit 510 to be directly electrically connected to the load 101. The first power system 20 or the second power system 30 supplies power to the load 101 through the control circuit 40, the voltage detecting and regulating circuit 60, and the switching unit 510.
The control unit 540 is further connected to the switch unit 510, and the control unit 540 is configured to detect a voltage output state of the voltage detecting and regulating circuit 60. When neither the commercial power 100 nor the second power system 30 can supply power to the load 101, the control unit 540 controls the switch unit 510, so that the first energy storage module 520 provides power to the load 101 through the current regulation unit 530.
The first power system 20, the second power system 30 and the third power system 50 are power interlocked. I.e. one of the first power supply system 20, the second power supply system 30 or the third power supply system 50, supplies power to the load 101.
In one embodiment, the current regulating unit 530 includes an ac-dc converting module 531, a charging module 532, a dc-dc boosting module 533 and a dc-ac inverting module 534. The switching unit 510 and the control unit 540 are respectively connected to an ac-dc conversion module 531. The ac-dc conversion module 531, the first energy storage module 520 and the control unit 540 are respectively connected to the charging module 532. The first energy storage module 520 and the control unit 540 are respectively connected to the dc-dc boost module 533. The dc-ac inverter module 534 is connected to the ac-dc conversion module 531, the dc-dc boost module 533, the control unit 540 and the load 101, respectively.
The control unit 540 is configured to detect and control the working states of the ac-dc conversion module 531, the charging module 532, the dc-dc boosting module 533, and the dc-ac inverting module 534.
When the first energy storage module 520 needs to be charged and the first power system 20 or the second power system 30 supplies power normally, the control unit 540 controls the switching unit 510 to be conducted with the ac-dc conversion module 531. The control unit 540 controls the ac-dc conversion module 531 to perform ac-dc conversion, and the control unit 540 controls the dc-ac inversion module 534 to perform dc-ac conversion. The first power system 20 or the second power system 30 supplies power to the load 101 through the control circuit 40, the voltage detecting and adjusting circuit 60, the switch unit 510, the ac-dc converting module 531 and the dc-ac inverting module 534. Meanwhile, the first power system 20 or the second power system 30 supplies power to the first energy storage module 520 through the control circuit 40, the voltage detection and adjustment circuit 60, the switch unit 510, the ac-dc conversion module 531 and the charging module 532.
When the first power system 20 or the second power system 30 cannot normally supply power, the control unit 540 controls the first energy storage module 520 to discharge power and controls the dc-dc boosting module 533 to boost power. The first energy storage module 520 supplies power to the load 101 through the dc-dc boosting module 533 and the dc-ac inverting module 534.
In one embodiment, both the first power system 20 and the second power system 30 can be normally powered. The first power system 20 supplies power to the load 101 through the control circuit 40, the voltage detecting and regulating circuit 60, and the switch unit 510. Meanwhile, the second power system 30 charges the first energy storage module 520.
In one embodiment, the first power supply system 20 includes a surge protection circuit 210 and a filter circuit 220. The surge protection circuit 210 is used for connecting with the mains 100. The surge protection circuit 210 and the control circuit 40 are respectively connected to the filter circuit 220. The surge protection circuit 210 and the filter circuit 220 are used for smoothing the output current of the commercial power 100.
The surge protection circuit 210 includes a discharge gap, a gas tube, or a thyristor. It presents a high impedance when there is no transient overvoltage, but abruptly changes to a low value in response to a lightning transient overvoltage, allowing lightning current to pass.
The surge protection circuit 210 includes zinc oxide, a varistor, a suppressor diode, or an avalanche diode. It is highly resistive when there is no transient overvoltage, but its impedance decreases with increasing surge current and voltage, and its current-voltage characteristics are strongly non-linear.
In one embodiment, the surge protection circuit 210 and the filter circuit 220 employ a method of bypassing undesirable power to the neutral line to reach ground before the interfering circuit damages the equipment.
Referring also to fig. 3, in one embodiment, the second power system 30 includes a power generation device 310. The power generation device 310 is connected to the control circuit 40. If the utility power 100 is abnormally supplied or is not supplied, the control circuit 40 is configured to control the power generation device 310 to operate, and the control circuit 40 is further configured to switch the power generation device 310 to supply power to the load 101.
The power generation device 310 may be a diesel generator, a photovoltaic power generation device, a hydroelectric power generation device, or a hand generator.
In one embodiment, the second power system 30 further includes a second energy storage device 320. The second energy storage device 320 is connected between the power generation device 310 and the control circuit 40. The second energy storage device 320 is capable of storing electrical energy of the power generation device 310.
In one embodiment, the first power system 20 further includes energy storage devices, the energy storage devices are respectively connected to the filter circuit 220 and the voltage detection and regulation circuit 60, and the energy storage devices are connected between the filter circuit 220 and the voltage detection and regulation circuit 60.
In one embodiment, the power plant 310 is a solar power plant. The second energy storage device 320 includes a combiner 321, a controller 322, a second energy storage module 323, and an inverter 324. The junction station 321 is connected to the solar power generation device. The controller 322 is connected to the combiner 321. The second energy storage module 323 is connected to the controller 322. The second energy storage module 323 and the control circuit 40 are respectively connected to the inverter 324.
The solar power generation device is provided with a plurality of cell panels and can convert light energy into electric energy. The return 321 is used to collect the dispersed electric energy. The controller 322 is configured to manage charging and discharging of the second energy storage module 323 by the solar power generation apparatus. The inverter 324 is used for converting the direct current into three-phase alternating current.
The power generation device 310 is disposed on a surface of the load 101.
In one embodiment, the load 101 is a vehicle-mounted mobile medical device. The second power system 30 is an automotive generator. The automobile generator can provide electric energy for an automobile and also can provide electric energy for the load 101.
The embodiment of the present application provides a medical system 200, which includes the power supply system according to any one of the above embodiments and the load 101. The load 101 is a medical device. The load 101 is connected to the voltage detection and regulation circuit 60.
In the medical system 200 provided in the embodiment of the present application, the first power system 20 and the second power system 30 and the voltage detection and regulation circuit 60 are respectively connected to the control circuit 40. If the first power system 20 is powered abnormally or not, the control circuit 40 is used to control the second power system 30 to be conducted with the voltage detecting and regulating circuit 60. The load power supply system 10 continuously supplies power to the load 101 in a multi-power switching mode, so that the load 101 is effectively prevented from being powered off. The voltage detecting and regulating circuit 60 is configured to monitor an input voltage of the control circuit 40, and regulate an output voltage of the voltage detecting and regulating circuit 60 to a preset voltage value, so as to ensure stability of a power supply voltage and further ensure normal operation of the load 101.
The embodiment of the application provides a control method of a power supply system, which comprises the following steps: when the first power system 20 supplies power normally, the first power system 20 is controlled to supply power to the load 101. When the first power system 20 cannot normally supply power and the second power system 30 normally supplies power, the second power system 30 is controlled to supply power to the load 101. When neither the first power system 20 nor the second power system 30 can supply power to the load 101, it is determined whether the power stored in the third power system 50 is greater than the first power. If the electric energy stored in the third power system 50 is greater than the first electric energy, the third power system 50 is controlled to be the load 101.
According to the control method of the power supply system provided by the embodiment of the application, the states of the first power supply system 20, the second power supply system 30 and the third power supply system 50 are monitored, and a plurality of standby power supply systems are adopted to supply power to the load 101, so that the probability of power failure of the load 101 is reduced.
Specifically, when the power supply system is not supplying power normally, the power supply system shows no current output, and the output voltage is over-voltage, under-voltage or open-phase.
In one embodiment, the control circuit 40 is connected to the first power system 20 and the second power system 30, respectively. The control circuit 40 is communicatively connected to the control unit 540. The control circuit 40 is used for detecting whether the two interfaces of the first power system 20 and the second power system 30 connected with the control circuit 40 have stable voltage input and current input.
The control method further comprises the following steps: when the control circuit 40 detects that neither the first power supply system 20 nor the second power supply system 30 can normally supply power, the control circuit 40 sends a detection result to the control unit 540. The control unit 540 controls the third power system 50 to supply power to the load 101.
In one embodiment, after the step of sending the detection result to the control unit 540 by the control circuit 40 and before the step of controlling the third power system 50 to supply power to the load 101 by the control unit 540, the control method further includes: the control unit 540 detects whether the electric energy stored in the third power supply system 50 is larger than the first electric energy value. If the electric energy stored in the third power system 50 is greater than the first electric energy value, the control unit 540 controls the third power system 50 to be the load 101.
In one embodiment, the control unit 540 is connected to the control circuit 40, and the control unit 540 is used for detecting whether the two interfaces of the first power system 20 and the second power system 30 connected to the control circuit 40 have stable voltage input and current input. If neither interface has a stable voltage input and a stable current input, the control unit 540 controls the third power system 50 to supply power to the load 101.
In one embodiment, before the step of controlling the third power system 50 to supply power to the load 101 by the control unit 540, the control method further includes: the control unit 540 detects whether the electric energy stored in the third power supply system 50 is larger than the first electric energy value. If the electric energy stored in the third power system 50 is greater than the first electric energy value, the control unit 540 controls the third power system 50 to be the load 101. In one embodiment, the control method of the power supply system further includes:
if the electric energy stored in the third power system 50 is smaller than the first electric energy value, the third power system 50 is prohibited from outputting the electric energy, so as to prevent the third power system 50 from over-discharging, and improve the service life of the third power system 50.
In one embodiment, the control method of the power supply system further includes:
if the third power system 50 stores less than the first power value, one of the first power system 20 or the second power system 30 can provide power. The first power system 20 or the second power system 30 capable of providing power is controlled to supply power to the load 101 while charging the third power system 50 to ensure that the capacity of the third power system 50 is maintained at a state greater than the first power value.
In one embodiment, the first power system 20 and the second power system 50 in the power supply system are further connected to the load 101 through separate lines, and the control method of the power supply system further includes: if the third power system 50 stores less than the first power value, both the first power system 20 and the second power system 30 can provide power. One of the first power supply system 20 or the second power supply system 30 is controlled to supply power to the load 101 while the other is charging the third power supply system 50.
The first electric energy value is 50% -60% of the full electric charge of the first energy storage module 520.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-described examples merely represent several embodiments of the present application and are not to be construed as limiting the scope of the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (14)

1. A power supply system, comprising:
a first power supply system (20) for providing electrical energy to a load (101);
-a second power supply system (30) for providing electrical energy to the load (101);
a control circuit (40) connected to the first power supply system (20) and the second power supply system (30), respectively;
a voltage detection and regulation circuit (60) for connection with the control circuit (40) and the load (101), respectively;
the control circuit (40) is used for monitoring the power supply states of the first power supply system (20) and the second power supply system (30), and if the first power supply system (20) supplies power normally, the control circuit (40) controls the first power supply system (20) to be conducted with the voltage detection and regulation circuit (60);
if the first power supply system (20) is abnormal in power supply or does not supply power, the control circuit (40) controls the second power supply system (30) to be conducted with the voltage detection and regulation circuit (60), and the voltage detection and regulation circuit (60) regulates and controls the output voltage to a preset voltage value.
2. The power supply system of claim 1, further comprising:
a third power supply system (50) for connecting to the voltage detection and regulation circuit (60) and the load (101), respectively;
when the first power supply system (20) and the second power supply system (30) cannot supply power to the load (101), the third power supply system (50) supplies power to the load (101).
3. The power supply system of claim 2, wherein the third power supply system (50) comprises:
a first energy storage module (520);
a current regulating unit (530) connected to the first energy storage module (520);
a switching unit (510) for connecting with the voltage detection and regulation circuit (60), the current regulation unit (530) and the load (101), respectively;
the control unit (540), the switching unit (510) and the current regulation unit (530) are respectively connected with the control unit (540), the control unit (540) is used for monitoring whether the switching unit (510) has voltage input, if the switching unit (510) has no voltage input, the control unit (540) controls the first energy storage module (520) to supply power to the load (101) through the current regulation unit (530);
if the switch unit (510) has a voltage input, the control unit (540) controls the switch unit (510) to be conducted with the load (101).
4. The power supply system of claim 2, wherein the third power supply system (50) comprises:
a first energy storage module (520);
a current regulating unit (530) connected to the first energy storage module (520);
a switching unit (510) for connecting with the voltage detection and regulation circuit (60), the current regulation unit (530) and the load (101), respectively;
the control unit (540), the switch unit (510), the control circuit (40) and the current regulation unit (530) are respectively connected with the control unit (540), the control unit (540) acquires the power supply states of the first power system (20) and the second power system (30) through the control circuit (40), and if the power supply of the first power system (20) and the second power system (30) is abnormal or is not normal, the control unit (540) controls the first energy storage module (520) to supply power to the load (101) through the current regulation unit (530);
if the first power supply system (20) and the second power supply system (30) supply power normally, the control unit (540) controls the switch unit (510) to be conducted with the load (101).
5. Power supply system according to claim 3 or 4, characterized in that if the power of the first energy storage module (520) is lower than a first power value and the switching unit (510) has a voltage input, one of the first power supply system (20) or the second power supply system (30) simultaneously supplies the first energy storage module (520) and the load (101).
6. The power supply system according to claim 3 or 4, wherein the current regulating unit (530) comprises:
an AC-DC conversion module (531) respectively connected to the switching unit (510) and the control unit (540);
a charging module (532) respectively connected with the AC-DC conversion module (531), the first energy storage module (520) and the control unit (540);
a DC-DC boost module (533) respectively connected to the first energy storage module (520) and the control unit (540);
a DC-AC inverter module (534) connected to the AC-DC conversion module (531), the DC-DC boost module (533), the control unit (540) and the load (101), respectively.
7. The power supply system of claim 1, wherein the first power supply system (20) comprises:
a surge protection circuit (210) for connection to mains electricity (100);
and the filter circuit (220), the surge protection circuit (210) and the control circuit (40) are respectively connected with the filter circuit (220).
8. The power supply system of claim 1, wherein the second power supply system (30) comprises:
the power generation device (310) is connected with the control circuit (40), if the power supply of the first power supply system is abnormal or is not supplied, the control circuit (40) is used for controlling the power generation device (310) to work, and the control circuit (40) is also used for switching the power generation device (310) to supply power for the load (101).
9. The power supply system of claim 8, wherein the second power supply system (30) further comprises:
a second energy storage device (320) connected between the power generation device (310) and the control circuit (40).
10. The power supply system of claim 9, wherein the power generation device (310) is a solar power generation device, and the second energy storage device (320) comprises:
a junction station (321) connected to the solar power generation device;
a controller (322) connected to the combiner (321);
a second energy storage module (323) connected with the controller (322);
the inverter (324), the second energy storage module (323) and the control circuit (40) are respectively connected with the inverter (324).
11. A medical system, comprising:
the power supply system of any one of claims 1-10, and
the load (101), the load (101) is medical equipment, and the load (101) is connected with the voltage detection and regulation circuit (60).
12. A method of controlling a power supply system, comprising:
when the first power supply system (20) supplies power normally, controlling the first power supply system (20) to supply power to a load (101);
when the first power supply system (20) cannot normally supply power and the second power supply system (30) normally supplies power, controlling the second power supply system (30) to supply power to the load (101);
when the first power supply system (20) and the second power supply system (30) cannot supply power to the load (101), judging whether the electric energy stored by a third power supply system (50) is larger than a first electric energy value;
and if the electric energy stored by the third power supply system (50) is larger than the first electric energy value, controlling the third power supply system (50) to be the load (101).
13. The control method of the power supply system according to claim 12, further comprising:
if the third power system (50) stores less than the first energy value and one of the first power system (20) or the second power system (30) is capable of providing electrical energy, controlling the first power system (20) or the second power system (30) capable of providing electrical energy to power the load (101) while charging the third power system (50).
14. A method of controlling a power supply system according to claim 12, characterized by controlling one of the first power supply system (20) or the second power supply system (30) to supply the load (101) and controlling the other of the first power supply system (20) or the second power supply system (30) to charge the third power supply system (50) if the third power supply system (50) stores less power than the first power value and both the first power supply system (20) or the second power supply system (30) are capable of supplying power.
CN202010850685.4A 2020-08-21 2020-08-21 Power supply system, medical system and control method Pending CN111900793A (en)

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CN202010850685.4A CN111900793A (en) 2020-08-21 2020-08-21 Power supply system, medical system and control method
US17/445,726 US20220054330A1 (en) 2020-08-21 2021-08-23 Moveable medical devices and monitoring methods thereof

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CN202010850685.4A CN111900793A (en) 2020-08-21 2020-08-21 Power supply system, medical system and control method

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040212356A1 (en) * 2003-04-22 2004-10-28 Dowlatabadi Ahmad B. Control loop for switching power converters
CN101291073A (en) * 2007-04-17 2008-10-22 台达电子工业股份有限公司 Uninterrupted power source and control method thereof
CN202197142U (en) * 2011-08-20 2012-04-18 福建先行新能源科技有限公司 Solar photovoltaic power generation and commercial power mutual standby system
CN102655330A (en) * 2011-03-01 2012-09-05 上海盛阳鲁棒新能源科技有限公司 New energy resource electric power system and method thereof
CN104124748A (en) * 2013-04-27 2014-10-29 广州邦讯信息系统有限公司 Public transport station intelligent power supply system compensated by clean energy
CN104218664A (en) * 2014-09-25 2014-12-17 无锡昊瑜节能环保设备有限公司 Continuous power supply system for stadium at night
CN105391164A (en) * 2015-12-16 2016-03-09 易事特集团股份有限公司 Micro-grid type uninterrupted power system
CN109391025A (en) * 2017-08-04 2019-02-26 上海微创心力医疗科技有限公司 Energy system and its control method for Implanted ventricular assist device
CN209823504U (en) * 2019-06-10 2019-12-20 无锡锡能电力实业有限公司电器制造分公司 Automatic switching system for control power supply of low-voltage contact cabinet
CN110718937A (en) * 2019-11-08 2020-01-21 广东中光能投资有限公司 Photovoltaic energy storage power distribution control method and system for smart home

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040212356A1 (en) * 2003-04-22 2004-10-28 Dowlatabadi Ahmad B. Control loop for switching power converters
CN101291073A (en) * 2007-04-17 2008-10-22 台达电子工业股份有限公司 Uninterrupted power source and control method thereof
CN102655330A (en) * 2011-03-01 2012-09-05 上海盛阳鲁棒新能源科技有限公司 New energy resource electric power system and method thereof
CN202197142U (en) * 2011-08-20 2012-04-18 福建先行新能源科技有限公司 Solar photovoltaic power generation and commercial power mutual standby system
CN104124748A (en) * 2013-04-27 2014-10-29 广州邦讯信息系统有限公司 Public transport station intelligent power supply system compensated by clean energy
CN104218664A (en) * 2014-09-25 2014-12-17 无锡昊瑜节能环保设备有限公司 Continuous power supply system for stadium at night
CN105391164A (en) * 2015-12-16 2016-03-09 易事特集团股份有限公司 Micro-grid type uninterrupted power system
CN109391025A (en) * 2017-08-04 2019-02-26 上海微创心力医疗科技有限公司 Energy system and its control method for Implanted ventricular assist device
CN209823504U (en) * 2019-06-10 2019-12-20 无锡锡能电力实业有限公司电器制造分公司 Automatic switching system for control power supply of low-voltage contact cabinet
CN110718937A (en) * 2019-11-08 2020-01-21 广东中光能投资有限公司 Photovoltaic energy storage power distribution control method and system for smart home

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
赵卫国: "《电工技术基础实践与应用》", 31 January 2017, 北京理工大学出版社 *

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Application publication date: 20201106