CN113595182B - Safety and stable discharge circuit for UPS - Google Patents
Safety and stable discharge circuit for UPS Download PDFInfo
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- CN113595182B CN113595182B CN202110835487.5A CN202110835487A CN113595182B CN 113595182 B CN113595182 B CN 113595182B CN 202110835487 A CN202110835487 A CN 202110835487A CN 113595182 B CN113595182 B CN 113595182B
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00022—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
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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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
-
- 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
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
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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
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
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- 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
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
Abstract
The invention provides a safe and stable discharge circuit for a UPS. An FPGA circuit: the UPS power supply control circuit is used for controlling the discharge of the UPS power supply according to an internal preset control logic; a circuit detection circuit: the UPS is used for carrying out circuit data acquisition when the UPS discharges to acquire circuit state data; a signal transceiver: the cloud platform is used for sending the circuit state data to the cloud platform, and storing the circuit data and receiving a remote control instruction; the MCU controller: the remote control instruction is used for acquiring the remote control instruction and performing remote circuit control; a voltage stabilizing controller: the UPS is used for being connected with the output end of the UPS power supply and stabilizing the working voltage in the discharge circuit.
Description
Technical Field
The invention relates to the technical field of UPS, in particular to a safe and stable discharge circuit for UPS.
Background
Currently, a UPS (Uninterruptible Power System) is an ac Power source that includes an energy storage device. Energy storage devices such as batteries are mainly used for providing uninterrupted power supply for loads in case of power failure. When the mains supply input is normal, the UPS supplies the mains supply to a load for use after stabilizing the voltage of the mains supply, and the energy storage device of the UPS is in a charging state at the moment; when the commercial power is interrupted (accident power failure), the UPS immediately utilizes the electric energy of the energy storage device to continuously supply alternating current to the load, so that the load can maintain normal work and can be protected from being damaged.
For UPS, reliability and efficiency are the two most important performance indicators. At present, because voltage control in the circuit is neglected in the prior art, only some constant voltage circuits, voltage stabilizing circuits and protection circuits are arranged, online timely control and regulation cannot be achieved, technical deviations exist all the time based on the protection function of the circuit and without participation of external control signals, and many UPSs are easy to be dangerous because no protection circuit or voltage stabilizing circuit exists in a main circuit of the UPS.
Disclosure of Invention
The invention provides a safe and stable discharge circuit for a UPS (uninterrupted power supply), which is used for solving the problem that in the prior art, only a plurality of constant voltage circuits, voltage stabilizing circuits and protection circuits are arranged for neglecting voltage control in the circuit, online timely control and regulation cannot be realized, technical deviation always exists on the basis of the own protection function of the circuit without the participation of external control signals, and many UPSs have no protection circuits and voltage stabilizing circuits in the main circuit and are easy to cause dangerous situations.
A safety stabilized discharge circuit for a UPS, comprising:
an FPGA circuit: the UPS power supply control device is used for carrying out discharge control on the UPS power supply according to an internal preset control logic;
a circuit detection circuit: the UPS is connected with the power supply in parallel and used for collecting circuit data and acquiring circuit state data when the UPS is charged and discharged;
a signal transceiver: the cloud platform is used for sending the circuit state data to the cloud platform, and storing the circuit data and receiving a remote control instruction;
the MCU controller: the remote control instruction is used for acquiring the remote control instruction and performing remote circuit control;
the voltage stabilizing controller: the UPS is used for being connected with the output end of the UPS power supply and stabilizing the working voltage in the discharge circuit.
As an embodiment of the invention: the FPGA circuit includes: the device comprises an external trigger circuit, an analog-to-digital conversion circuit, an FPGA chip, a clock distribution circuit and a drive circuit; wherein, the first and the second end of the pipe are connected with each other,
the input end of the external trigger circuit is electrically connected with the circuit detection circuit and is used for receiving a trigger signal detected by the circuit;
the external trigger circuit is electrically connected with a trigger pin of the FPGA chip;
the input end of the digital-to-analog conversion circuit is electrically connected with the control pin of the FPGA, and the output end of the digital-to-analog conversion circuit is electrically connected with the UPS and is used for controlling the discharge mode of the UPS; wherein, the first and the second end of the pipe are connected with each other,
the discharge mode includes: a synchronous charge-discharge mode and an emergency discharge mode;
the input end of the clock distribution circuit is electrically connected with the FPGA chip and is used for carrying out charging detection according to the built-in time sequence of the FPGA chip;
the drive circuit is electrically connected with the power input end of the FPGA chip, and the input end of the drive circuit is connected with the UPS power supply and used for supplying power to the FPGA circuit.
As an embodiment of the present invention: the FPGA circuit executes a synchronous charging and discharging mode and comprises the following steps:
t1, acquiring real-time input voltage and real-time rated voltage of a plurality of UPS power supplies according to the circuit detection circuit, and judging whether the UPS power supplies are in a charging state or not;
step T2: respectively determining a charging-state UPS power supply, a full-capacity UPS power supply and a no-capacity UPS power supply;
t3, receiving a load power utilization request through the external trigger circuit, and screening the UPS power supply meeting the power utilization requirement according to the power utilization request;
step T4, when the UPS meeting the power consumption requirement has the UPS with full capacity, the UPS with full capacity is adopted to supply power;
and T5, when the UPS meeting the power consumption requirement is a charging UPS, determining the UPS with the input voltage larger than the working voltage of the load, and starting a synchronous charging and discharging mode to supply power.
As an embodiment of the invention: the FPGA circuit executes an emergency discharging mode, and comprises the following steps:
step J1, acquiring real-time input voltage and real-time rated voltage of a plurality of UPS power supplies according to the circuit detection circuit, and determining real-time electric quantity of the UPS power supplies;
step J2, receiving a load emergency power utilization request through the external trigger circuit, determining the required real-time working voltage according to the emergency power utilization request, and judging whether a UPS power supply meeting the emergency power utilization requirement exists;
step J3, when a UPS meeting the emergency power demand exists, the corresponding UPS is adopted to supply power;
and J4, when no UPS meeting the emergency power demand exists, performing series voltage boosting on the UPS, and supplying power after series voltage boosting.
As an embodiment of the invention: the signal transceiver includes: a low noise amplifier, a band pass filter, a power amplifier, a signal transmitter, a signal receiver, and an antenna; wherein the content of the first and second substances,
the output end of the low-noise amplifier is electrically connected with the input end of the band-pass filter through a first isolating switch;
the input end of the power amplifier is electrically connected with the output end of the band-pass filter;
the output end of the power amplifier is electrically connected with the input end of the signal transmitter;
the output end of the signal transmitter is electrically connected with the antenna;
the antenna is also connected with the input end of the signal receiver;
and the input end of the signal receiver is connected with the MCU controller through the band-pass filter.
As an embodiment of the present invention: the signal transceiver for signal transceiving comprises the following steps:
receiving circuit state data of the circuit detection circuit, and sending the circuit state data to a cloud-end platform for processing;
receiving a cloud platform signal; wherein, the first and the second end of the pipe are connected with each other,
the cloud platform signal is from a wireless transmission source, and the wireless transmission source is a base station, a global navigation satellite system or user equipment;
if the cloud platform signal comprises a plurality of signal powers; judging whether at least one signal power is larger than or equal to a signal power threshold value, selecting one of the at least one synchronization signal as a priority implementation signal according to a priority rule, and synchronizing the local time sequence to the priority implementation signal;
if the signal powers are all smaller than the signal power threshold value, sending a plurality of signal powers according to the local time sequence; and
if the signal powers satisfy a retransmission condition, retransmitting the signal powers, wherein the retransmission condition includes a power limit and a hop count limit,
the retransmission condition further includes that the signal power of the plurality of signal powers is between a lower power limit value and an upper power limit value, and the hop count of the plurality of signal powers is smaller than a hop count threshold value, wherein the hop count represents the number of retransmission times that the plurality of signal powers pass after being transmitted from the base station/global navigation satellite system.
As an embodiment of the invention: the signal transceiver for transmitting and receiving signals further comprises the following steps:
forming a cloud server cluster interconnection based on the cloud platform; the cloud platform processes the circuit state data through a cloud server cluster and judges a real-time circuit discharging scene; wherein, the first and the second end of the pipe are connected with each other,
the cloud server cluster is used for providing services and algorithms for a cloud platform;
according to the discharging scene, the cloud platform controls the cloud platform to optimize the discharging mode of the UPS power supply through remote instruction control.
The cloud server cluster comprises at least one cloud server;
as an embodiment of the invention: the MCU controller includes:
parallel-serial conversion control circuit: the UPS power supply is controlled to carry out series and parallel conversion according to the regulation and control instruction of the cloud platform, and output voltage and output current are increased;
a level conversion circuit: and the communication voltage adjusting module is used for adjusting the communication voltage and switching the communication voltage of the signal transceiver.
A serial port circuit: and the system is used for carrying out synchronous communication or asynchronous communication according to the signal instruction of the cloud platform.
As an embodiment of the invention: the MCU controller control step comprises the following steps:
determining control information and a communication mode based on the control instruction of the cloud platform;
determining load equipment of the load equipment connected with different UPS power supplies according to the communication mode and the control information;
calculating a load weight of the load equipment and an average weight of all the load equipment based on the real-time input current and the real-time input voltage of the load equipment;
judging whether the corresponding load equipment meets the control requirement of the control information or not according to the load weight of the load equipment and the average weight of all the load equipment, and adding an alternative list when the corresponding load equipment meets the control requirement of the control information;
determining a UPS power supply which accords with the real-time working voltage of the load according to the alternative list, and adding the UPS power supply into a discharge list;
determining a UPS power supply or a series-parallel UPS power supply combination which meets the working voltage requirement of a load in the alternative list according to the discharge list and the alternative list;
and distributing the UPS power supply or the series-parallel UPS power supply combination to corresponding load equipment for power supply.
As an embodiment of the invention: the voltage stabilization controller includes:
front-end power supply circuit: the UPS is connected with the input end of the UPS power supply, and the stability of the input voltage is adjusted;
DC-DC voltage regulation circuit: the UPS is electrically connected with the output end of the circuit of the UPS and is subjected to voltage transformation regulation;
a rear-end linear constant-current circuit; and the output end of the DC-DC voltage regulating circuit is electrically connected with the UPS power supply, and a self-feedback constant current circuit is formed when charging is carried out.
The invention has the beneficial effects that: the main principle of the invention is that the safety function of the discharge circuit is realized in the process of charging and discharging, and the invention also has the function of circuit regulation. The circuit control is carried out through a logic control method preset in the FPGA circuit, the stability of the circuit is kept, meanwhile, the specific circuit condition of the circuit is collected in real time based on the circuit detection circuit, the real-time condition of the circuit is sent to the cloud platform through each signal transceiver, and the circuit control and the circuit adjustment are carried out through the instruction of the cloud platform. The voltage stabilizing controller keeps the UPS in a constant current state when the UPS discharges, so that circuit accidents are prevented.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
Fig. 1 is a circuit layout diagram of a safety and stability discharge circuit for a UPS according to an embodiment of the invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it should be understood that they are presented herein only to illustrate and explain the present invention and not to limit the present invention.
As shown in fig. 1, the present invention comprises: a safety stabilized discharge circuit for a UPS, comprising:
an FPGA circuit: the UPS power supply control device is used for carrying out discharge control on the UPS power supply according to an internal preset control logic;
a circuit detection circuit: the UPS is connected with the power supply in parallel and used for collecting circuit data and acquiring circuit state data when the UPS is charged and discharged;
a signal transceiver: the cloud platform is used for sending the circuit state data to the cloud platform, and storing the circuit data and receiving a remote control instruction;
the MCU controller: the remote control instruction is used for acquiring the remote control instruction and performing remote circuit control;
the voltage stabilizing controller: the UPS is used for being connected with the output end of the UPS power supply and stabilizing the working voltage in the discharge circuit.
The principle and the beneficial effects of the technical scheme are as follows: the main principle of the invention is that the safety function of the discharge circuit is realized in the process of charging and discharging, and the invention also has the function of circuit regulation. The circuit control is carried out through a logic control method preset in the FPGA circuit, the stability of the circuit is kept, meanwhile, the specific circuit condition of the circuit is collected in real time based on the circuit detection circuit, the real-time condition of the circuit is sent to the cloud platform through each signal transceiver, and the circuit control and the circuit adjustment are carried out through the instruction of the cloud platform. The UPS power supply is kept in a constant current state when discharging through the voltage stabilizing controller, and circuit accidents are prevented from occurring.
As an embodiment of the invention: the FPGA circuit includes: the device comprises an external trigger circuit, an analog-to-digital conversion circuit, an FPGA chip, a clock distribution circuit and a drive circuit; wherein, the first and the second end of the pipe are connected with each other,
the input end of the external trigger circuit is electrically connected with the circuit detection circuit and is used for receiving a trigger signal detected by the circuit;
the external trigger circuit is electrically connected with a trigger pin of the FPGA chip;
the input end of the digital-to-analog conversion circuit is electrically connected with the control pin of the FPGA, and the output end of the digital-to-analog conversion circuit is electrically connected with the UPS and is used for controlling the discharge mode of the UPS; wherein the content of the first and second substances,
the discharge mode includes: a synchronous charge-discharge mode and an emergency discharge mode;
the input end of the clock distribution circuit is electrically connected with the FPGA chip and is used for carrying out charging detection according to the built-in time sequence of the FPGA chip;
the drive circuit is electrically connected with the power input end of the FPGA chip, and the input end of the drive circuit is connected with the UPS power supply and used for supplying power to the FPGA circuit.
The principle and the beneficial effects of the technical scheme are as follows: the FPGA circuit mainly comprises an external trigger circuit, an analog-to-digital conversion circuit, an FPGA chip, a clock distribution circuit and a driving circuit, wherein the external trigger circuit is determined to be in a charging state and has a charging requirement, the analog-to-digital conversion circuit is used for circuit control in a discharging mode, the clock distribution circuit is used for monitoring the charging circuit according to a time sequence, and the driving circuit drives other circuits to be implemented so as to ensure that the state of the circuit is controllable and stable.
As an embodiment of the present invention: the FPGA circuit executes a synchronous charge-discharge mode, and comprises the following steps:
step T1, acquiring real-time input voltage and real-time rated voltage of a plurality of UPS power supplies according to the circuit detection circuit, and judging whether the UPS power supplies are in a charging state or not;
step T2: respectively determining a charging-state UPS power supply, a full-capacity UPS power supply and a no-capacity UPS power supply;
t3, receiving a load power utilization request through the external trigger circuit, and screening the UPS power supply meeting the power utilization requirement according to the power utilization request;
step T4, when the UPS meeting the power consumption requirement has the UPS with full capacity, the UPS with full capacity is adopted to supply power;
and T5, when the UPS meeting the power consumption requirement is a charging UPS, determining the UPS with the input voltage larger than the working voltage of the load, and starting a synchronous charging and discharging mode to supply power.
The principle and the beneficial effects of the technical scheme are as follows: in the synchronous charging and discharging mode, charging and discharging are carried out simultaneously, and at the moment, the charging voltage is required to be higher than the discharging voltage, so that the UPS can be continuously charged.
As an embodiment of the present invention: the FPGA circuit executes an emergency discharging mode, and comprises the following steps:
step J1, acquiring real-time input voltage and real-time rated voltage of a plurality of UPS power supplies according to the circuit detection circuit, and determining real-time electric quantity of the UPS power supplies;
step J2, receiving a load emergency power utilization request through the external trigger circuit, determining the required real-time working voltage according to the emergency power utilization request, and judging whether a UPS power supply meeting the emergency power utilization requirement exists;
step J3, when a UPS meeting the emergency power demand exists, the corresponding UPS is adopted to supply power;
and step J4, when the UPS meeting the emergency power demand does not exist, performing series voltage boost on the UPS, and supplying power after series voltage boost.
The principle and the beneficial effects of the technical scheme are as follows: the invention realizes the satisfaction of voltage and current by the series and parallel control of the UPS.
As an embodiment of the invention: the signal transceiver includes: a low noise amplifier, a band pass filter, a power amplifier, a signal transmitter, a signal receiver, and an antenna; wherein the content of the first and second substances,
the output end of the low-noise amplifier is electrically connected with the input end of the band-pass filter through a first isolating switch;
the input end of the power amplifier is electrically connected with the output end of the band-pass filter;
the output end of the power amplifier is electrically connected with the input end of the signal transmitter;
the output end of the signal transmitter is electrically connected with the antenna;
the antenna is also connected with the input end of the signal receiver;
and the input end of the signal receiver is connected with the MCU controller through the band-pass filter.
The principle and the beneficial effects of the technical scheme are as follows: the invention realizes noise amplification based on a low noise amplifier, a band-pass filter, a power amplifier, a signal transmitter, a signal receiver and an antenna, then carries out filtering removal, and finally amplifies the filtered signal through the power amplifier and continues discharging.
As an embodiment of the invention: the signal transceiver for transmitting and receiving signals comprises the following steps:
receiving circuit state data of the circuit detection circuit, and sending the circuit state data to a cloud-end platform for processing;
receiving a cloud platform signal; wherein, the first and the second end of the pipe are connected with each other,
the cloud platform signal is from a wireless transmission source, and the wireless transmission source is a base station, a global navigation satellite system or user equipment;
if the cloud platform signal comprises a plurality of signal powers; judging whether at least one signal power is larger than or equal to a signal power threshold value, selecting one of the at least one synchronization signal as a priority implementation signal according to a priority rule, and synchronizing the local time sequence to the priority implementation signal;
if the signal powers are all smaller than the signal power threshold value, sending a plurality of signal powers according to the local time sequence; and
if the signal powers satisfy the retransmission condition, retransmitting the signal powers, wherein the retransmission condition comprises a power limit and a hop count limit,
the retransmission condition also comprises that the signal power of the signal powers is between a lower power limit value and an upper power limit value, and the hop count of the signal powers is smaller than a hop count threshold value, wherein the hop count represents the number of retransmission times of the signal powers after being transmitted from the base station/global navigation satellite system.
The principle and the beneficial effects of the technical scheme are as follows: the invention is also based on the control of the cloud platform, in the control process, some instructions need to be executed in advance, and some instructions need to be executed later, and in the execution process, the cloud platform realizes the receiving and sending of different signals based on signal limitation, and carries out power limitation based on different base stations/global navigation satellite systems.
As an embodiment of the present invention: the signal transceiver for signal transceiving further comprises the following steps:
forming a cloud server cluster interconnection based on the cloud platform; the cloud platform processes the circuit state data through a cloud server cluster and judges a real-time circuit discharging scene; wherein the content of the first and second substances,
the cloud server cluster is used for providing services and algorithms for a cloud platform;
according to the discharging scene, the cloud platform controls the cloud platform to optimize the discharging mode of the UPS through remote instruction control.
The cloud server cluster comprises at least one cloud server;
the principle and the beneficial effects of the technical scheme are as follows: after the remote control is carried out, the cloud server can implement different discharging scenes through different discharging instructions by stunning through the server.
As an embodiment of the invention: the MCU controller includes:
parallel-serial conversion control circuit: the UPS power supply is controlled to carry out series and parallel conversion according to the regulation and control instruction of the cloud platform, and output voltage and output current are increased;
a level conversion circuit: and the communication voltage adjusting module is used for adjusting the communication voltage and switching the communication voltage of the signal transceiver.
A serial port circuit: and the system is used for carrying out synchronous communication or asynchronous communication according to the signal instruction of the cloud platform.
The principle and the beneficial effects of the technical scheme are as follows: the MCU of the invention mainly performs serial-parallel connection division control and conversion through the instruction of the cloud platform when performing control. Thereby realizing synchronous communication and asynchronous communication.
As an embodiment of the invention: the MCU controller control step comprises the following steps:
determining control information and a communication mode based on the control instruction of the cloud platform;
determining load equipment of the load equipment connected with different UPS power supplies according to the communication mode and the control information;
calculating a load weight of the load equipment and an average weight of all the load equipment based on the real-time input current and the real-time input voltage of the load equipment;
judging whether the corresponding load equipment meets the control requirement of the control information or not according to the load weight of the load equipment and the average weight of all the load equipment, and adding an alternative list when the corresponding load equipment meets the control requirement of the control information;
determining a UPS (uninterrupted power supply) meeting the real-time working voltage of the load according to the alternative list, and adding the UPS into a discharge list;
according to the discharge list and the alternative list, determining a UPS power supply or a series-parallel UPS power supply combination which meets the working voltage requirement of a load in the alternative list;
and distributing the UPS power supply or the series-parallel UPS power supply combination to corresponding load equipment for supplying power.
The principle and the beneficial effects of the technical scheme are as follows: when the UPS is used for charging loads, because some loads need high current and high voltage, the existing UPS equipment cannot meet the requirements, and the UPS control circuit realizes the control of the charging and discharging of each UPS circuit in a combined mode.
As an embodiment of the present invention: the voltage stabilization controller includes:
front-end power supply circuit: the UPS is connected with the input end of the UPS power supply, and the stability of the input voltage is adjusted;
DC-DC voltage regulation circuit: the UPS is electrically connected with the output end of the UPS power supply and is subjected to voltage transformation regulation;
a rear-end linear constant-current circuit; and the output end of the DC-DC voltage regulating circuit is electrically connected with the UPS power supply, and a self-feedback constant current circuit is formed when charging is carried out. It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. A safety stabilized discharge circuit for a UPS, comprising:
an FPGA circuit: the UPS power supply control device is used for carrying out discharge control on the UPS power supply according to an internal preset control logic;
the circuit detection circuit: the UPS is connected with the power supply in parallel and used for collecting circuit data and acquiring circuit state data when the UPS is charged and discharged;
a signal transceiver: the cloud platform is used for sending the circuit state data to the cloud platform, and storing the circuit data and receiving a remote control instruction;
the MCU controller: the remote control device is used for acquiring the remote control instruction and performing remote circuit control;
a voltage stabilizing controller: the UPS is used for being connected with the output end of the UPS and stabilizing the working voltage in the discharge circuit; the FPGA circuit includes: the device comprises an external trigger circuit, an analog-to-digital conversion circuit, an FPGA chip, a clock distribution circuit and a drive circuit; wherein the content of the first and second substances,
the input end of the external trigger circuit is electrically connected with the circuit detection circuit and is used for receiving a trigger signal detected by the circuit;
the external trigger circuit is electrically connected with a trigger pin of the FPGA chip;
the input end of the analog-to-digital conversion circuit is electrically connected with the control pin of the FPGA chip, and the output end of the analog-to-digital conversion circuit is electrically connected with the UPS power supply and is used for controlling the discharge mode of the UPS power supply; wherein, the first and the second end of the pipe are connected with each other,
the discharge mode includes: a synchronous charge-discharge mode and an emergency discharge mode;
the input end of the clock distribution circuit is electrically connected with the FPGA chip and is used for carrying out charging detection according to the built-in time sequence of the FPGA chip;
the drive circuit is electrically connected with the power input end of the FPGA chip, and the input end of the drive circuit is connected with the UPS power supply and used for supplying power to the FPGA circuit.
2. A safety stabilized discharge circuit for a UPS according to claim 1, wherein said FPGA circuit performs a synchronous charging and discharging mode comprising the steps of:
step T1, acquiring real-time input voltage and real-time rated voltage of a plurality of UPS power supplies according to the circuit detection circuit, and judging whether the UPS power supplies are in a charging state or not;
step T2: respectively determining a charging UPS power supply, a full-capacity UPS power supply and a no-capacity UPS power supply;
t3, receiving a load power utilization request through the external trigger circuit, and screening the UPS power supply meeting the power utilization requirement according to the power utilization request;
step T4, when the UPS meeting the power consumption requirement has the full-capacity UPS, the full-capacity UPS is adopted for supplying power;
and T5, when the UPS meeting the power consumption requirement is a charging UPS, determining the UPS with the input voltage larger than the working voltage of the load, and starting a synchronous charging and discharging mode to supply power.
3. A safety stabilized discharge circuit for a UPS according to claim 1, wherein said FPGA circuit performs an emergency discharge mode comprising the steps of:
step J1, acquiring real-time input voltage and real-time rated voltage of a plurality of UPS power supplies according to the circuit detection circuit, and determining real-time electric quantity of the UPS power supplies;
step J2, receiving a load emergency power utilization request through the external trigger circuit, determining the required real-time working voltage according to the emergency power utilization request, and judging whether a UPS power supply meeting the emergency power utilization requirement exists;
step J3, when a UPS meeting the emergency power demand exists, the corresponding UPS is adopted to supply power;
and J4, when no UPS meeting the emergency power demand exists, performing series voltage boosting on the UPS, and supplying power after series voltage boosting.
4. A safety stabilized discharge circuit for a UPS according to claim 1, wherein said signal transceiver comprises: a low noise amplifier, a band pass filter, a power amplifier, a signal transmitter, a signal receiver, and an antenna; wherein, the first and the second end of the pipe are connected with each other,
the output end of the low-noise amplifier is electrically connected with the input end of the band-pass filter through a first isolating switch;
the input end of the power amplifier is electrically connected with the output end of the band-pass filter;
the output end of the power amplifier is electrically connected with the input end of the signal transmitter;
the output end of the signal transmitter is electrically connected with the antenna;
the antenna is also connected with the input end of the signal receiver;
and the input end of the signal receiver is connected with the MCU controller through the band-pass filter.
5. A safety stabilized discharge circuit for a UPS according to claim 1, wherein said signal transceiver for transceiving signals comprises the steps of:
receiving circuit state data of the circuit detection circuit, and sending the circuit state data to a cloud-end platform for processing;
receiving a cloud platform signal; wherein, the first and the second end of the pipe are connected with each other,
the cloud platform signal is from a wireless transmission source, and the wireless transmission source is a base station, a global navigation satellite system or user equipment;
if the cloud platform signal comprises a plurality of signal powers; judging whether at least one signal power is larger than or equal to a signal power threshold value, selecting one of at least one synchronous signal as a priority implementation signal according to a priority rule, and synchronizing the time sequence of the cloud platform signal to the priority implementation signal;
if the signal powers are all smaller than the signal power threshold, sending a plurality of signal powers according to the time sequence; and
if the signal powers satisfy the retransmission condition, retransmitting the signal powers, wherein the retransmission condition comprises a power limit and a hop count limit,
the retransmission condition further includes that the signal power of the plurality of signal powers is between a lower power limit value and an upper power limit value, and the hop count of the plurality of signal powers is smaller than a hop count threshold value, wherein the hop count represents the number of retransmission times that the plurality of signal powers pass after being transmitted from the base station/global navigation satellite system.
6. A safety stabilized discharge circuit for a UPS according to claim 1, wherein said signal transceiver for transceiving signals further comprises the steps of:
forming a cloud server cluster interconnection based on the cloud platform; the cloud platform processes the circuit state data through a cloud server cluster and judges a real-time circuit discharging scene; wherein, the first and the second end of the pipe are connected with each other,
the cloud server cluster is used for providing services and algorithms for a cloud platform;
according to the discharging scene, the cloud platform controls the cloud platform to optimize the discharging mode of the UPS power supply through remote instruction control;
the cloud server cluster comprises at least one cloud server.
7. A safety stabilized discharge circuit for a UPS according to claim 1, wherein said MCU controller comprises:
parallel-to-serial conversion control circuit: the UPS power supply is controlled to carry out series and parallel conversion according to the regulation and control instruction of the cloud platform, and output voltage and output current are increased;
a level conversion circuit: the communication voltage adjusting device is used for adjusting the communication voltage and switching the communication voltage of the signal transceiver;
a serial port circuit: and the system is used for carrying out synchronous communication or asynchronous communication according to the signal instruction of the cloud platform.
8. A safety stabilized discharge circuit for a UPS according to claim 1, wherein said MCU controller controlling step comprises the steps of:
determining control information and a communication mode based on the control instruction of the cloud platform;
determining load equipment connected with different UPS power supplies according to the communication mode and the control information;
calculating a load weight of the load equipment and an average weight of all the load equipment based on the real-time input current and the real-time input voltage of the load equipment;
judging whether the corresponding load equipment meets the control requirement of the control information or not according to the load weight of the load equipment and the average weight of all the load equipment, and adding an alternative list when the corresponding load equipment meets the control requirement of the control information;
determining a UPS power supply which accords with the real-time working voltage of the load according to the alternative list, and adding the UPS power supply into a discharge list;
determining a UPS power supply or a series-parallel UPS power supply combination which meets the working voltage requirement of a load in the alternative list according to the discharge list and the alternative list;
and distributing the UPS power supply or the series-parallel UPS power supply combination to corresponding load equipment for power supply.
9. A safety stabilized discharge circuit for a UPS according to claim 1, wherein the regulator controller comprises:
front-end power supply circuit: the UPS is connected with the input end of the UPS power supply, and the stability of the input voltage is adjusted;
DC-DC voltage regulation circuit: the UPS is electrically connected with the output end of the UPS power supply and is subjected to voltage transformation regulation;
a rear-end linear constant-current circuit; and the output end of the DC-DC voltage regulating circuit is electrically connected with the UPS power supply, and a self-feedback constant current circuit is formed when charging is carried out.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110835487.5A CN113595182B (en) | 2021-07-23 | 2021-07-23 | Safety and stable discharge circuit for UPS |
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| CN202110835487.5A CN113595182B (en) | 2021-07-23 | 2021-07-23 | Safety and stable discharge circuit for UPS |
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| CN113595182B true CN113595182B (en) | 2022-07-22 |
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| CN104638717B (en) * | 2014-12-31 | 2018-02-02 | 咸阳职业技术学院 | A kind of portable power source double temperature double control integrated circuit |
| CN204517383U (en) * | 2015-04-29 | 2015-07-29 | 四川九门科技有限公司 | UPS discharge protector |
| CN107508304B (en) * | 2017-08-29 | 2020-09-08 | 国电联合动力技术有限公司 | Partition control method of battery energy storage system |
| CN109638864B (en) * | 2018-12-30 | 2020-08-11 | 北京泛安信息技术有限公司 | Control system of smart power grid |
| CN209488154U (en) * | 2019-04-19 | 2019-10-11 | 山东润一智能科技有限公司 | Intelligent protector for motor |
| CN212275920U (en) * | 2019-12-06 | 2021-01-01 | 中国石油天然气股份有限公司 | UPS power supply discharge detection device and system |
| CN113036948B (en) * | 2021-05-27 | 2021-09-07 | 荣耀终端有限公司 | Charging control method and device |
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