CN113517754A - Automatic charging power supply device and method for isolating power frequency - Google Patents
Automatic charging power supply device and method for isolating power frequency Download PDFInfo
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- CN113517754A CN113517754A CN202110625691.4A CN202110625691A CN113517754A CN 113517754 A CN113517754 A CN 113517754A CN 202110625691 A CN202110625691 A CN 202110625691A CN 113517754 A CN113517754 A CN 113517754A
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- power supply
- relay
- electrically connected
- charging
- battery
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000012544 monitoring process Methods 0.000 claims abstract description 39
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- 239000000084 colloidal system Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
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Classifications
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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
- H02J9/061—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 DC powered loads
-
- 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]
-
- 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
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
-
- 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
-
- 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
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
- H02J7/04—Regulation of charging current or voltage
Abstract
The invention discloses an automatic charging power supply device and a power supply method for isolating power frequency, the device comprises more than two groups of batteries, each group of batteries is electrically connected with a charging relay and a public end of a power supply relay, the normally closed ends of the charging relays are not connected, the normally opened ends are electrically connected with a charger, the public end in each charging relay is electrically connected with the normally closed end by default, a relay control coil can control the public end to be switched between the electrical connection with the normally opened end or the normally closed end, the normally closed ends of the power supply relays are electrically connected with a power supply circuit, the normally opened ends are not connected, the public end in each power supply relay is electrically connected with the normally closed end by default, the relay control coil can control the public end to be switched between the electrical connection with the normally opened end or the normally closed end, and the relay control coils of the charging relays and the power supply relays are electrically connected with a main controller of a monitoring unit and controlled by the main controller of the monitoring unit. The power supply device disclosed by the invention uses the battery to supply power to meet the requirement of isolating power frequency, does not need to replace the battery manually, and provides power supply support for really realizing unattended signal monitoring.
Description
Technical Field
The invention belongs to the field of power supply devices and methods, and particularly relates to an automatic charging power supply device and method for isolating power frequency in the field, which can be used for supplying power to signal acquisition equipment in an unattended measuring station.
Background
Monitoring signals of the atmospheric noise and electromagnetic signal monitoring station contain power frequency signal frequency, so that the monitoring equipment is not allowed to enter power frequency interference from a power supply in series except for external signals received by a sensor, namely, power frequency power supply needs to be isolated.
The simplest method for isolating the power frequency is to use a battery to supply power. Usually, two storage batteries are used and are manually replaced, so that the storage batteries are charged and supplied with power in turn.
This power supply mode meets the absolute requirement of isolating power frequency, but also has a serious disadvantage: due to the fact that batteries need to be replaced manually, real unattended operation cannot be achieved.
Disclosure of Invention
The invention aims to solve the technical problem of providing an automatic charging power supply device and method for isolating power frequency, which can be used for isolating power frequency power supply for atmospheric noise and electromagnetic signal measuring equipment.
The invention adopts the following technical scheme:
an automatic charging power supply device for isolating power frequency is improved in that: the monitoring unit comprises more than two groups of batteries, each group of batteries is electrically connected with the common ends of a charging relay and a power supply relay, the normally closed ends of the charging relays are not connected with wires, the normally opened ends are electrically connected with a charger, the common ends in the charging relays are defaulted to be electrically connected with the normally closed ends, the common ends can be controlled by a relay control coil to be switched between the electrical connection with the normally opened ends or the normally closed ends, the normally closed ends of the power supply relays are electrically connected with a power supply circuit and not connected with wires, the common ends in the power supply relays are defaulted to be electrically connected with the normally closed ends, the common ends can be controlled by the relay control coil to be switched between the electrical connection with the normally opened ends or the normally closed ends, the relay control coils of the charging relays and the power supply relays are electrically connected with a main controller of the monitoring unit and controlled by the main controller, and an electric quantity monitoring and alarming module in the monitoring unit is electrically connected with the power supply circuit to monitor the electric quantity of each battery, and the electric quantity information of each battery is electrically connected with the main controller and fed back to the main controller, and an alarm signal is sent out according to an alarm instruction sent by the main controller.
Furthermore, the battery is a colloid storage battery or a lithium battery.
Furthermore, each charging relay and each power supply relay are large-current double-pole double-throw relays.
Furthermore, a power supply circuit supplies power to the acquisition equipment.
The improvement of the automatic charging power supply method for isolating power frequency by using the device is that the automatic charging power supply method comprises the following steps:
step 1, all batteries work in a power supply mode:
after the device is powered on, the common end in each charging relay is electrically connected with the normally closed end, all batteries are not charged, the common end in each power supply relay is electrically connected with the normally closed end, and all batteries start to supply power for the power supply circuit;
step 2, the battery 1 works in a power supply mode, and other batteries work in a charging mode:
after a main controller in the monitoring unit is started, a common end in a power supply relay is electrically connected with a normally open end through a relay control coil in the power supply relay which is electrically connected with other batteries except the battery 1, and power supply for a power supply circuit is stopped; starting charging by electrically connecting a common terminal in a charging relay to a normally open terminal through a relay control coil in the charging relay electrically connected to a battery other than the battery 1;
step 3, the batteries work in a power supply mode in turn, and the rest batteries which do not supply power work in a charging mode:
the electric quantity monitoring and alarming module in the monitoring unit is electrically connected with the power supply circuit and monitors the electric quantity of the battery 1, the electric quantity of the battery 1 is monitored and then fed back to the main controller, the main controller enables a common end in a charging relay to be electrically connected with a normally closed end through a relay control coil in the charging relay electrically connected with the battery 2, the charging is stopped, the common end in the power supply relay is electrically connected with the normally closed end through a relay control coil in the power supply relay electrically connected with the battery 2, the power supply circuit is started to be supplied with power, the common end in the power supply relay is electrically connected with the normally open end through a relay control coil in the power supply relay electrically connected with the battery 1, and the power supply circuit is stopped to be supplied with power; the main controller makes the common end in the charging relay electrically connected with the normally open end through the relay control coil in the charging relay electrically connected with the battery 1, starts charging, keeps the charging state of the other batteries unchanged, and repeats the above steps to make the batteries supply power in turn and charge after stopping supplying power;
and 4, when the electric quantity of all the batteries is low, all the batteries work in a power supply mode, and an alarm is given:
if the electric quantity monitoring and alarming module monitors that the electric quantity of all batteries is low and then feeds back to the main controller, the main controller enables the public end in each charging relay to be electrically connected with the normally closed end through the relay control coil in each charging relay, all batteries are not charged, the public end in each power supply relay is electrically connected with the normally closed end through the relay control coil in each power supply relay, all batteries start to supply power for the power supply circuit, meanwhile, the main controller sends an alarming instruction to the electric quantity monitoring and alarming module, and the electric quantity monitoring and alarming module gives an alarm.
The invention has the beneficial effects that:
the power supply device disclosed by the invention uses the battery to supply power to meet the requirement of isolating power frequency, does not need to replace the battery manually, and provides power supply support for really realizing unattended signal monitoring. The relay control coil is an independent coil control structure and can be completely isolated from input and output signals of the relay, mutual crosstalk between a mains supply signal and a power supply device is prevented when charging is carried out, the power frequency signal is prevented from entering the acquisition equipment through the power supply device, and a power supply guarantee is provided for authenticity of the power frequency band measurement signal of the acquisition equipment.
The power supply method disclosed by the invention can realize the automatic switching of the charging and discharging of the battery, can supply power without interruption without manual intervention, ensures the integrity of a measurement signal, has the function of monitoring and alarming the battery state, and can be used in unattended occasions.
Drawings
Fig. 1 is a schematic circuit diagram of a power supply device disclosed in embodiment 1 of the present invention;
FIG. 2 is a schematic flow chart of a power supply method disclosed in embodiment 1 of the present invention;
fig. 3 is a schematic circuit connection diagram of steps 1 and 4 in the power supply method disclosed in embodiment 1 of the present invention;
FIG. 4 is a schematic circuit diagram of the power supply method disclosed in embodiment 1 during step 2;
fig. 5 is a schematic circuit connection diagram in step 3 of the power supply method disclosed in embodiment 1 of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Embodiment 1, as shown in fig. 1, this embodiment discloses an automatic charging and power supplying apparatus for isolating power frequency, which includes two sets of batteries, each set of batteries is electrically connected to the common terminals of a charging relay and a power supplying relay, the normally closed terminals of the charging relays are not connected to wires, the normally open terminals are electrically connected to a charger, the common terminals in the charging relays are electrically connected to the normally closed terminals by default, the relay control coil can control the common terminals to switch between electrically connecting to the normally open terminals or the normally closed terminals, the normally closed terminals of the power supplying relays are electrically connected to a power supplying circuit, the normally open terminals are not connected to wires, the common terminals in the power supplying relays are electrically connected to the normally closed terminals by default, the relay control coil can control the common terminals to switch between electrically connecting to the normally open terminals or the normally closed terminals, the relay control coils of the charging relays and the power supplying relays are electrically connected to and controlled by a main controller of a monitoring unit, the electric quantity monitoring and alarming module in the monitoring unit is electrically connected with the power supply circuit to monitor the electric quantity of each battery, is electrically connected with the main controller to feed back the electric quantity information of each battery, and sends out an alarming signal according to an alarming instruction sent by the main controller.
The monitoring unit is a core control unit of the device, judges the battery state by monitoring the electric quantity of the battery, controls the opening and closing of each charging relay and each power supply relay, enables the battery to complete the switching between charging and power supply, and gives an alarm when the battery breaks down.
In this embodiment, the battery is a maintenance-free gel battery or a lithium battery. Each charging relay and each power supply relay are high-current double-pole double-throw relays. The power supply circuit supplies power to the acquisition equipment, and the acquisition equipment comprises atmospheric noise and electromagnetic signal measurement equipment.
As shown in fig. 2, this embodiment also discloses an automatic charging and power supplying method for isolating power frequency, which uses the above-mentioned apparatus to ensure that at any time, at least one battery works in a power supply mode, and at any time during work, the same group of batteries are not in a state of both power supply and charging, and includes the following steps:
step 1, as shown in fig. 3, all batteries work in a power supply mode:
after the device is powered on, the common end in each charging relay is electrically connected with the normally closed end, all batteries are not charged, the common end in each power supply relay is electrically connected with the normally closed end, and all batteries start to supply power for the power supply circuit;
step 2, as shown in fig. 4, the battery 1 works in the power supply mode, and the battery 2 works in the charging mode:
after a main controller (control software) in the monitoring unit is started, a relay control coil in a power supply relay electrically connected with the battery 2 enables a common end in the power supply relay to be electrically connected with a normally open end, and power supply for a power supply circuit is stopped; a common terminal in a charging relay is electrically connected with a normally open terminal through a relay control coil in the charging relay electrically connected with the battery 2, and charging is started;
step 3, as shown in fig. 5, the battery 1 and the battery 2 work in the power supply mode in turn, and work in the charging mode when not supplying power:
the electric quantity monitoring and alarming module in the monitoring unit is electrically connected with the power supply circuit and monitors the electric quantity of the battery 1, the electric quantity of the battery 1 is monitored and then fed back to the main controller, the main controller enables a common end in a charging relay to be electrically connected with a normally closed end through a relay control coil in the charging relay electrically connected with the battery 2, the charging is stopped, the common end in the power supply relay is electrically connected with the normally closed end through a relay control coil in the power supply relay electrically connected with the battery 2, the power supply circuit is started to be supplied with power, the common end in the power supply relay is electrically connected with the normally open end through a relay control coil in the power supply relay electrically connected with the battery 1, and the power supply circuit is stopped to be supplied with power; the main controller makes the common end in the charging relay electrically connected with the normally open end through the relay control coil in the charging relay electrically connected with the battery 1, starts charging, repeats the above content of the step when the battery 2 is low in electric quantity, makes the battery 1 and the battery 2 supply power in turn, and charges after stopping supplying power;
step 4, as shown in fig. 3, when all the batteries are low in electricity, all the batteries work in a power supply mode, and an alarm is given:
if the electric quantity monitoring and alarming module monitors that the electric quantity of all batteries is low and then feeds back to the main controller, the main controller enables the public end in each charging relay to be electrically connected with the normally closed end through the relay control coil in each charging relay, all batteries are not charged, the public end in each power supply relay is electrically connected with the normally closed end through the relay control coil in each power supply relay, all batteries start to supply power for the power supply circuit, meanwhile, the main controller sends an alarming instruction to the electric quantity monitoring and alarming module, and the electric quantity monitoring and alarming module gives an alarm.
Claims (5)
1. The utility model provides an keep apart automatic charging power supply unit of power frequency which characterized in that: the monitoring unit comprises more than two groups of batteries, each group of batteries is electrically connected with the common ends of a charging relay and a power supply relay, the normally closed ends of the charging relays are not connected with wires, the normally opened ends are electrically connected with a charger, the common ends in the charging relays are defaulted to be electrically connected with the normally closed ends, the common ends can be controlled by a relay control coil to be switched between the electrical connection with the normally opened ends or the normally closed ends, the normally closed ends of the power supply relays are electrically connected with a power supply circuit and not connected with wires, the common ends in the power supply relays are defaulted to be electrically connected with the normally closed ends, the common ends can be controlled by the relay control coil to be switched between the electrical connection with the normally opened ends or the normally closed ends, the relay control coils of the charging relays and the power supply relays are electrically connected with a main controller of the monitoring unit and controlled by the main controller, and an electric quantity monitoring and alarming module in the monitoring unit is electrically connected with the power supply circuit to monitor the electric quantity of each battery, and the electric quantity information of each battery is electrically connected with the main controller and fed back to the main controller, and an alarm signal is sent out according to an alarm instruction sent by the main controller.
2. The automatic charging power supply device for isolating power frequency according to claim 1, characterized in that: the battery is a colloid storage battery or a lithium battery.
3. The automatic charging power supply device for isolating power frequency according to claim 1, characterized in that: each charging relay and each power supply relay are high-current double-pole double-throw relays.
4. The automatic charging power supply device for isolating power frequency according to claim 1, characterized in that: the power supply circuit supplies power to the acquisition equipment.
5. An automatic charging power supply method for isolating power frequency, which uses the device of claim 1, and is characterized by comprising the following steps:
step 1, all batteries work in a power supply mode:
after the device is powered on, the common end in each charging relay is electrically connected with the normally closed end, all batteries are not charged, the common end in each power supply relay is electrically connected with the normally closed end, and all batteries start to supply power for the power supply circuit;
step 2, the battery 1 works in a power supply mode, and other batteries work in a charging mode:
after a main controller in the monitoring unit is started, a common end in a power supply relay is electrically connected with a normally open end through a relay control coil in the power supply relay which is electrically connected with other batteries except the battery 1, and power supply for a power supply circuit is stopped; starting charging by electrically connecting a common terminal in a charging relay to a normally open terminal through a relay control coil in the charging relay electrically connected to a battery other than the battery 1;
step 3, the batteries work in a power supply mode in turn, and the rest batteries which do not supply power work in a charging mode:
the electric quantity monitoring and alarming module in the monitoring unit is electrically connected with the power supply circuit and monitors the electric quantity of the battery 1, the electric quantity of the battery 1 is monitored and then fed back to the main controller, the main controller enables a common end in a charging relay to be electrically connected with a normally closed end through a relay control coil in the charging relay electrically connected with the battery 2, the charging is stopped, the common end in the power supply relay is electrically connected with the normally closed end through a relay control coil in the power supply relay electrically connected with the battery 2, the power supply circuit is started to be supplied with power, the common end in the power supply relay is electrically connected with the normally open end through a relay control coil in the power supply relay electrically connected with the battery 1, and the power supply circuit is stopped to be supplied with power; the main controller makes the common end in the charging relay electrically connected with the normally open end through the relay control coil in the charging relay electrically connected with the battery 1, starts charging, keeps the charging state of the other batteries unchanged, and repeats the above steps to make the batteries supply power in turn and charge after stopping supplying power;
and 4, when the electric quantity of all the batteries is low, all the batteries work in a power supply mode, and an alarm is given:
if the electric quantity monitoring and alarming module monitors that the electric quantity of all batteries is low and then feeds back to the main controller, the main controller enables the public end in each charging relay to be electrically connected with the normally closed end through the relay control coil in each charging relay, all batteries are not charged, the public end in each power supply relay is electrically connected with the normally closed end through the relay control coil in each power supply relay, all batteries start to supply power for the power supply circuit, meanwhile, the main controller sends an alarming instruction to the electric quantity monitoring and alarming module, and the electric quantity monitoring and alarming module gives an alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110625691.4A CN113517754A (en) | 2021-06-04 | 2021-06-04 | Automatic charging power supply device and method for isolating power frequency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110625691.4A CN113517754A (en) | 2021-06-04 | 2021-06-04 | Automatic charging power supply device and method for isolating power frequency |
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| CN113517754A true CN113517754A (en) | 2021-10-19 |
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| CN202110625691.4A Pending CN113517754A (en) | 2021-06-04 | 2021-06-04 | Automatic charging power supply device and method for isolating power frequency |
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| CN108242848A (en) * | 2016-12-27 | 2018-07-03 | 中国船舶重工集团公司七五〇试验场 | A kind of uninterrupted power supply device |
| CN108482154A (en) * | 2018-03-29 | 2018-09-04 | 潍柴动力股份有限公司 | A kind of control system of electric automobile |
| JP2020005389A (en) * | 2018-06-27 | 2020-01-09 | 株式会社Ｓｏｋｅｎ | Power supply system |
-
2021
- 2021-06-04 CN CN202110625691.4A patent/CN113517754A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110307733A1 (en) * | 2010-06-14 | 2011-12-15 | Hitachi, Ltd. | Electrical charge and discharge circuit, and an embedded controller |
| CN103296744A (en) * | 2012-02-22 | 2013-09-11 | 叶继伦 | Power source for medical equipment and power supply method for same |
| CN103855731A (en) * | 2012-11-29 | 2014-06-11 | 西安思能网络科技有限公司 | Uninterrupted rechargeable battery power supply |
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