CN115224772A - Power supply control method, power supply control system and elevator system - Google Patents
Power supply control method, power supply control system and elevator system Download PDFInfo
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- CN115224772A CN115224772A CN202210963053.8A CN202210963053A CN115224772A CN 115224772 A CN115224772 A CN 115224772A CN 202210963053 A CN202210963053 A CN 202210963053A CN 115224772 A CN115224772 A CN 115224772A
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- battery module
- module
- power supply
- charging
- driving device
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
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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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00302—Overcharge protection
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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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00306—Overdischarge protection
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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
- 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
- H02J7/0068—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
- 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
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Elevator Control (AREA)
Abstract
The invention discloses a power supply control method, a power supply control system and an elevator system, and relates to the technical field of elevators. The power supply control method comprises the following steps: judging whether the idle time of the elevator driving device is greater than a preset threshold value or not; if so, the elevator driving device is in an idle state, and whether the external power supply supplies power to the charging module is further judged; and if the external power supply does not stop supplying power to the charging module, detecting the electric quantity of the battery module, and controlling the charging module to charge the battery module according to the electric quantity of the battery module. In the mode, the battery module is used for directly supplying power to the elevator system, the electric quantity of the battery module is managed when the elevator driving device is in an idle state through the control module, the electric quantity loss caused when an emergency power supply is arranged in a power supply control system of the elevator is solved, and the service life of the battery in the battery module is prolonged.
Description
Technical Field
The invention relates to the technical field of elevators, in particular to a power supply control method, a power supply control system and an elevator system.
Background
Along with the popularization of the application of the elevator system in daily life, great convenience is brought to the life of people. In the prior art, modules such as a tractor frequency converter, a band-type brake power supply, a door machine controller and the like in an elevator system are directly powered by a power grid, and an emergency power supply is started to supply power to the elevator system under the condition of power failure of the power grid, so that the operation of an elevator is maintained when the power grid is in power failure, and the emergency rescue effect is achieved.
The emergency power supply for supplying power to the elevator system is provided with a small-capacity battery module in the prior art, when the power grid supplies power to the elevator system, the power grid continuously charges the emergency power supply through a charging module connected with the emergency power supply, at the moment, the battery module is in an idle state and consumes power, so that the power loss is caused when the elevator system is in a normal working state or in the idle state, meanwhile, because the emergency power supply is arranged in the elevator system, the size and the manufacturing cost of the elevator power supply system are increased, and meanwhile, the power of the battery module is managed through a control module, so that the service life of a battery in the battery module is prolonged.
Disclosure of Invention
The invention provides a power supply control method, a power supply control system and an elevator system, which aim to solve the problem of electric quantity loss caused by using an emergency power supply in the power supply control system of an elevator in the prior art.
In order to solve the above problems, the present invention provides a power supply control method, the execution subject of the method is a power supply control system, the power supply control system includes a charging module and a battery module, and is applied to an elevator driving device, the control method includes:
judging whether the idle time of the elevator driving device is greater than a preset threshold value or not;
if so, the elevator driving device is in an idle state, and whether an external power supply supplies power to the charging module is further judged;
and if the external power supply does not stop supplying power to the charging module, detecting the electric quantity of the battery module, and controlling the charging module to charge the battery module according to the electric quantity of the battery module.
Further, the step of detecting the electric quantity of the battery module and controlling the charging module to charge the battery module according to the electric quantity of the battery module includes: controlling the charging module to charge the battery module, and judging whether the electric quantity of the battery module is greater than a first preset threshold value of the electric quantity of the battery module; if so, controlling the charging module to stop charging the battery module, and further controlling the battery module to continuously supply power to the elevator driving device in an idle state; judging whether the electric quantity of the battery module is smaller than a second preset threshold of the electric quantity of the battery module; and if so, controlling the charging module to charge the battery module.
Further, the step of detecting the electric quantity of the battery module and controlling the charging module to charge the battery module according to the electric quantity of the battery module further includes: if the electric quantity of the battery module is judged to be smaller than a first preset threshold value of the electric quantity of the battery module, controlling the charging module to charge the battery module, and further controlling the battery module to continuously supply power to the elevator driving device in an idle state; and if the electric quantity of the battery module is judged to be larger than a second preset threshold value of the electric quantity of the battery module, controlling the charging module to stop charging the battery module.
Further, the control method further includes: and if the external power supply stops supplying power to the charging module, controlling the battery module to stop supplying power to the elevator driving device so as to control the power supply control system to be in an energy-saving state.
Further, after the determination that the external power supply does not stop supplying power to the charging module, the control method further includes: judging whether the battery module works normally or not; and if the battery module is judged to work abnormally, controlling the charging module to supply power to the elevator driving device.
In order to solve the above problem, the present invention further provides a power supply control system, which is applied to the power supply control method, and includes a charging module, a battery module, and a control module, wherein: the charging module is respectively connected with an external power supply and the battery module and is used for charging the battery module; the battery module is connected with the elevator driving device and used for supplying power to the elevator driving device; the control module is respectively connected with the elevator driving device, the charging module and the battery module; the control module is used for judging whether the idle time of the elevator driving device is larger than a preset threshold value or not; if yes, the control module further judges whether the external power supply supplies power to the charging module based on the fact that the elevator driving device is in an idle state; and if the control module judges that the external power supply does not stop supplying power to the charging module, detecting the electric quantity of the battery module, and controlling the charging module to charge the battery module according to the electric quantity of the battery module by the control module.
In order to solve the problems, the invention further provides an elevator system which comprises a power supply control system and an elevator driving device, wherein the power supply control system is connected with the elevator driving device and used for controlling the elevator driving device, and the power supply control system is the power supply control system.
The invention provides a power supply control method, a power supply control system and an elevator system, wherein the power supply control method comprises the following steps: judging whether the idle time of the elevator driving device is greater than a preset threshold value or not; if so, the elevator driving device is in an idle state, and whether an external power supply supplies power to the charging module is further judged; and if the external power supply does not stop supplying power to the charging module, detecting the electric quantity of the battery module, and controlling the charging module to charge the battery module according to the electric quantity of the battery module. The elevator system is directly powered by the battery module, and the control module is used for managing the electric quantity of the battery module when the elevator driving device is in an idle state, so that the electric quantity loss caused when an emergency power supply is arranged in the power supply control system of the elevator is solved, and the service life of the battery in the battery module is prolonged.
Drawings
FIG. 1 is a schematic structural diagram of a first embodiment of a power supply control system according to the present invention;
FIG. 2 is a schematic flow chart diagram illustrating a power supply control method according to a first embodiment of the present invention;
FIG. 3 is a flow chart illustrating a power supply control method according to a second embodiment of the present invention;
FIG. 4 is a flow chart illustrating a power supply control method according to a third embodiment of the present invention;
fig. 5 presents a diagrammatic illustration of the structure of a first embodiment of the elevator system according to the invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first", "second", and the like in the present invention are used for distinguishing different objects, not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of a power supply control system 1 according to a first embodiment of the present invention, and fig. 2 is a schematic flow chart of a power supply control method according to a first embodiment of the present invention. As shown in fig. 1, a power supply control system 1 of the present invention includes: a charging module 10, a battery module 20, and a control module 30.
The charging module 10 is connected to an external power source 40 and the battery module 20, respectively, and the external power source 40 supplies power to the charging module 10, so that the charging module 10 can be used to charge the battery module 20 when the external power source 40 supplies power to the charging module 10. The battery module 20 is connected to the elevator drive device 2 and supplies power to the elevator drive device 2.
The control module 30 is connected to the elevator driving device 2, the charging module 10, and the battery module 20, respectively. The control module 30 is configured to detect an idle time of the elevator driving device 2, and determine whether the elevator driving device 2 is in an idle state or a normal operating state based on the idle time of the elevator driving device 2. Meanwhile, the control module 30 determines whether the external power source 40 supplies power to the charging module 10, and detects the electric quantity of the battery module 20 when determining that the external power source 40 does not stop supplying power to the charging module 10, and the control module 30 connected to the charging module 10 can control the charging module 10 to charge the battery module 20 according to the electric quantity of the battery module 20.
The following describes the power supply control method of the power supply control system 1 in detail, please refer to fig. 2, and fig. 2 is a schematic flow chart of a first embodiment of the power supply control method according to the present invention. As shown in fig. 2, the power supply control method of the present invention includes the steps of:
s101: it is determined whether the idle time of the elevator drive 2 is greater than a preset threshold.
The control module 30 detects the idle time of the elevator driving device 2 and judges whether the idle time of the elevator driving device 2 is greater than a preset threshold, and the control module 30 can judge the working state of the elevator driving device 2 based on the idle time of the elevator driving device 2.
S102: it is determined whether the external power source 40 supplies power to the charging module 10.
When the control module 30 determines that the idle time of the elevator driving device 2 is greater than the preset threshold, the control module 30 determines that the elevator driving device 2 is in an idle state. The control module 30 determines whether the external power source 40 supplies power to the charging module 10 by detecting the operating state of the charging module 10 based on the idle state of the elevator driving apparatus 2.
S103: detects the amount of power of the battery module 20 and controls the charging module 10 to charge the battery module 20.
When the control module 30 determines that the external power source 40 does not stop supplying power to the charging module 10, the battery module 20 supplies power to the elevator driving device 2 in an idle state to provide a daily power consumption of the elevator driving device 2 in the idle state. At this time, the control module 30 detects the amount of power of the battery module 20, and controls the charging module 10 to charge the battery module 20 based on the amount of power of the battery module 20, so that the amount of power of the battery module 20 is within the optimal range of power.
Different from the prior art, the execution main body of the power supply control method is the power supply control system 1, the power supply control system 1 comprises a charging module 10 and a battery module 20 and is applied to an elevator driving device 2, and the power supply control method comprises the following steps: judging whether the idle time of the elevator driving device 2 is greater than a preset threshold value or not; if yes, the elevator driving device 2 is in an idle state, and further judges whether the external power supply 40 supplies power to the charging module 10; if it is determined that the external power source 40 does not stop supplying power to the charging module 10, the power of the battery module 20 is detected, and the charging module 10 is controlled to charge the battery module 20 according to the power of the battery module 20. In this way, the battery module 20 is used for directly supplying power to the elevator system 3, and the control module 30 is used for managing the electric quantity of the battery module 20 when the elevator driving device 2 is in an idle state, so that the electric quantity loss caused by setting an emergency power supply in the power supply control system 1 of the elevator is solved, and the service life of the battery in the battery module 20 is prolonged.
Referring to fig. 3, fig. 3 is a schematic flow chart of a power supply control method according to a second embodiment of the present invention. Fig. 3 is a specific implementation step of step S103 in fig. 2, and as shown in fig. 3, the detecting the electric quantity of the battery module 20 and controlling the charging module 10 to charge the battery module 20 in the power supply control method of the present invention includes the following steps:
s201: the charging module 10 is controlled to charge the battery module 20.
When the control module 30 determines that the external power source 40 does not stop supplying power to the charging module 10, the battery module 20 continuously supplies power to the elevator driving device 2 in the idle state, the control module 30 controls the charging module 10 to continuously charge the battery module 20, and at this time, the battery module 20 continuously supplies power to the elevator driving device 2 in the idle state.
S202: it is determined whether the amount of power of the battery module 20 is greater than a first predetermined threshold.
The control module 30 detects the electric quantity of the battery module 20 to obtain electric quantity detection information of the battery module 20, and determines whether the electric quantity of the battery module 20 is greater than a first preset threshold of the electric quantity of the battery module 20 based on the electric quantity detection information. Specifically, when the control module 30 determines that the electric quantity of the battery module 20 is greater than the first preset threshold of the electric quantity of the battery module 20, the step S203 is executed; when the control module 30 determines that the power of the battery module 20 is smaller than the first preset threshold of the power of the battery module 20, the process returns to step S201.
S203: the charging module 10 is controlled to stop charging the battery module 20.
When the control module 30 determines that the electric quantity of the battery module 20 is greater than the first preset threshold of the electric quantity of the battery module 20, the control module 30 controls the charging module 10 to stop charging the battery module 20, and at this time, the battery module 20 continuously supplies power to the elevator driving device 2 in the idle state, so as to provide the daily electric quantity loss of the elevator driving device 2 in the idle state.
S204: it is determined whether the amount of power of the battery module 20 is less than a second preset threshold.
After the electric quantity of the elevator driving device 2 is consumed for a period of time, the electric quantity of the battery module 20 is reduced, the control module 30 detects the electric quantity of the battery module 20 to obtain the electric quantity detection information of the battery module 20, and whether the electric quantity of the battery module 20 is smaller than a second preset threshold value of the electric quantity of the battery module 20 is judged based on the electric quantity detection information. Specifically, when the control module 30 determines that the electric quantity of the battery module 20 is smaller than the second preset threshold of the electric quantity of the battery module 20, the step S201 is returned to; when the control module 30 determines that the power of the battery module 20 is greater than the second preset threshold of the power of the battery module 20, the process returns to step S203.
It should be noted that, the first preset threshold of the electric quantity of the battery module 20 is an upper limit of the optimal electric quantity of the battery module 20, the second preset threshold of the electric quantity of the battery module 20 is a lower limit of the optimal electric quantity of the battery module 20, the electric quantity of the battery module 20 is detected by the control module 30, the electric quantity of the battery module 20 is controlled to be between the first preset threshold and the second preset threshold, and the electric quantity of the battery module 20 can be controlled to be the optimal electric quantity.
Different from the prior art, the power supply control method comprises the following steps: controlling the charging module 10 to charge the battery module 20, and determining whether the electric quantity of the battery module 20 is greater than a first preset threshold of the electric quantity of the battery module 20; if yes, the charging module 10 is controlled to stop charging the battery module 20, and the battery module 20 is further controlled to continuously supply power to the elevator driving device 2 in an idle state; judging whether the electric quantity of the battery module 20 is smaller than a second preset threshold value of the electric quantity of the battery module 20; if yes, the charging module 10 is controlled to charge the battery module 20. In this way, the control module 30 detects the electric quantity of the battery module 20, adjusts the charging of the battery module 20 by the charging module 10, and controls the electric quantity of the battery module 20 to be between the first preset threshold and the second preset threshold, that is, controls the electric quantity of the battery module 20 to be at the optimal electric quantity, so as to prevent the battery module 20 from being overcharged and overdischarged, and simultaneously, protect the battery module 20 from energy saving and environmental protection, and ensure the operation safety of the battery module 20.
Referring to fig. 4, fig. 4 is a schematic flow chart of a power supply control method according to a third embodiment of the present invention. As shown in fig. 4, the power supply control method of the present invention further includes the steps of:
s301: it is determined whether the external power source 40 supplies power to the charging module 10.
When the control module 30 determines that the idle time of the elevator driving device 2 is greater than the preset threshold, the control module 30 determines that the elevator driving device 2 is in an idle state. The control module 30 determines whether the external power source 40 supplies power to the charging module 10 by detecting the operating state of the charging module 10 based on the idle state of the elevator driving apparatus 2.
S302: the battery module 20 is controlled to stop supplying power to the elevator driving device 2.
When the control module 30 determines that the external power source 40 stops supplying power to the charging module 10, the control module 30 controls the battery module 20 to stop supplying power to the elevator driving device 2 in the idle state based on the power failure of the external power source 40, so as to control the power supply control system 1 to be in the energy-saving state, thereby reducing the electric quantity loss of the battery module 20 when the elevator driving device 2 is in the idle state, realizing the energy saving of the battery module 20, and prolonging the service life of the battery module 20.
S303: it is determined whether the battery module 20 is normally operated.
When the control module 30 determines that the external power source 40 does not stop supplying power to the charging module 10, the control module 30 further determines whether the battery module 20 is operating normally. Specifically, when the control module 30 determines that the battery module 20 works normally, the battery module 20 continuously supplies power to the elevator driving device 2 in an idle state at this time, so as to provide the daily electric quantity required by the elevator driving device 2 in the idle state; when the control module 30 determines that the operation of the battery module 20 is abnormal, the process proceeds to step S304.
S304: the control charging module 10 supplies power to the elevator drive 2.
When the control module 30 determines that the battery module 20 works abnormally, the control module 30 controls the battery module 20 to stop supplying power to the elevator driving device 2, and controls the charging module 10 to directly supply power to the elevator driving device 2 so as to provide daily electric quantity required by the elevator driving device 2 in an idle state.
In this way, when the battery module 20 is in the idle state, the control module 30 controls the battery module 20 to stop supplying power to the elevator driving device 2 by detecting whether the external power source 40 supplies power to the power supply control system 1 or not, and when the power supply control system 1 is in the power-off state, so as to save energy of the battery module 20 and maintain the electric quantity of the battery module 20.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a power supply control system 1 according to a first embodiment of the present invention. As shown in fig. 1, a power supply control system 1 of the present invention includes: a control module 30, a charging module 10, and a battery module 20.
Specifically, the charging module 10 is connected to an external power source 40, and the external power source 40 supplies power to the charging module 10. The external power source 40 is a power grid externally connected to the power supply control system 1, and when the power grid is connected to the charging module 10 of the power supply control system 1, the power supply control system transmits electric energy to the charging module 10 by providing an alternating current input signal.
The battery module 20 is connected to the charging module 10 and the elevator driving apparatus 2, and when the external power source 40 supplies power to the charging module 10, the charging module 10 charges the battery module 20, and the battery module 20 supplies power to the elevator driving apparatus 2. The high voltage ac input signal provided by the external power source 40 is processed by the charging module 10 and the battery module 20 to generate a low voltage dc input signal and output to the elevator driving apparatus 2.
Alternatively, in other embodiments, the battery module 20 and the charging module 10 are disposed in the same circuit unit of the power supply control system 1, and the control module 30 controls the battery module 20 and the charging module 10 of the circuit unit to regulate charging and discharging of the battery module 20.
It should be noted that the battery module 20 outputs a low-voltage dc input signal to the elevator driving device 2 to provide electric energy for the elevator driving device 2, so that the elevator driving device 2 supplies power to the battery module 20 at a low voltage in the working process, thereby reducing the potential safety hazard of the elevator driving device 2.
The control module 30 of the power supply control system 1 is connected to the elevator driving device 2, the charging module 10 and the battery module 20, and the control module 30 detects the electric quantity of the battery module 20 when the elevator driving device 2 is in an idle state, and controls the charging module 10 to charge the battery module 20 based on the electric quantity of the battery module 20.
Alternatively, the battery module 20 includes a BMS battery system (battery management system), and the battery module 20 can intelligently manage and maintain the respective units of the battery module 20 through the BMS battery system (battery management system) to prevent overcharge and overdischarge of the battery module 20, thereby extending the lifespan of the battery module 20 and monitoring the state of the battery module 20. The battery information of the battery module 20, including the battery power, temperature, current, voltage, etc. of the battery module 20, is collected by connecting the battery module 20 with the control module 30 and by using a BMS battery system (battery management system), and the control module 30 adjusts the charge and discharge of the battery module 20 based on the collected information, thereby improving the safety and reliability of the battery module 20 in actual operation.
The power supply control system 1 further includes a first switching unit 50 and a second switching unit 21. The first switching unit 50 is connected to the external power source 40 and the charging module 10, respectively. The second switching unit 21 is provided in the battery module 20 and connected to the battery module 20, the charging module 10, and the elevator driving device 2, respectively. When the external power source 40 is in a normal working state, the external power source 40 supplies power to the charging module 10 by controlling the first switch unit 50; when the external power source 40 is in a power-off state, that is, when the power grid externally connected to the power supply control system 1 is powered off or the power supply control system is switched off, the first switch unit 50 and the second switch unit 21 are controlled to stop the external power source 40 from supplying power to the charging module 10, and simultaneously, when the elevator is in an idle state, the battery module 20 is controlled to stop supplying power to the elevator driving device 2, so that the electric quantity of the battery module 20 is maintained, and the energy conservation of the battery module 20 is realized.
The second switch unit 21 is provided in the battery module 20, and based on the intelligent management of the BMS battery system (battery management system) in the battery module 20 and the control of the control module 30 connected thereto, it is possible to adjust the charging and discharging of the battery module 20 during the charging of the battery module 20 by the charging module 10 and the discharging of the elevator driving device 2 by the battery module 20, so that the battery capacity of the battery module 20 is maintained within a certain range, thereby achieving the effects of energy saving, environmental protection, and safety in operation of the battery module 20. The second switching unit 21 includes a switch, a diode, a field effect transistor, or the like.
The charging module 10 is connected with the elevator driving device 2, the control module 30 controls the battery module 20 to stop supplying power to the elevator driving device 2 by controlling the second switch unit 21 based on the failure of the battery module 20, and at this time, the electric energy provided by the external power supply 40 for the charging module 10 is directly output to the elevator driving device 2.
Specifically, during the operation of the power supply control system 1, the control module 30 determines the operating state of the elevator driving device 2 by detecting whether the idle time of the elevator driving device 2 is greater than a preset threshold.
Alternatively, when the control module 30 detects that the idle time of the elevator driving device 2 is greater than the preset threshold, the control module 30 determines that the elevator driving device 2 is in an idle state. The control module 30 detects whether the external power source 40 stops supplying power to the charging module 10 by detecting the charging module 10 based on the state in which the elevator driving apparatus 2 is in the idle state. When the control module 30 detects that the first switch unit 50 is turned on, the control module 30 detects that the external power source 40 does not stop supplying power to the charging module 10, and at this time, the control module 30 is configured to detect the power of the battery module 20; when the control module 30 detects that the first switch unit 50 is turned off and the control module 30 detects that the external power source 40 stops supplying power to the charging module 10, at this time, the control module 30 controls the second switch unit 21 to enable the battery module 20 to stop supplying power to the elevator driving device 2 in an idle state, so that the power consumption of the battery module 20 when the elevator driving device 2 is in the idle state is reduced, the energy conservation of the battery module 20 is realized, and the service life of the battery module 20 is prolonged.
Further, the control module 30 detects whether the capacity of the battery module 20 is greater than the first preset threshold of the battery module 20 based on the situation that the elevator driving device 2 is in the idle state and the external power source 40 does not stop supplying power to the charging module 10. When the control module 30 detects that the amount of power of the battery module 20 is greater than the first preset threshold of the battery module 20, the control module 30 controls the second switch unit 21 to disconnect the charging module 10 from the battery module 20, so that the charging module 10 stops charging the battery module 20. The battery module 20 supplies power to the elevator driving device 2 in an idle state through the second switching unit 21 to provide a daily power consumption of the elevator driving device 2 in the idle state. When the control module 30 detects that the electric quantity of the battery module 20 is smaller than the first preset threshold of the battery module 20, the control module 30 controls the second switch unit 21 to connect the charging module 10 with the battery module 20, so that the charging module 10 charges the battery module 20, and at this time, the battery module 20 continuously supplies power to the elevator driving device 2 in an idle state.
Further, the control module 30 detects whether the charge of the battery module 20 is less than a second preset threshold of the battery module 20. When the control module 30 detects that the amount of power of the battery module 20 is less than the second preset threshold of the battery module 20, the control module 30 controls the second switch unit 21 to connect the charging module 10 with the battery module 20, so that the charging module 10 charges the battery module 20. When the control module 30 detects that the amount of power of the battery module 20 is greater than the second preset threshold of the battery module 20, the control module 30 keeps the charging module 10 disconnected from the battery module 20 by controlling the second switch unit 21, so that the charging module 10 stops charging the battery module 20.
It should be noted that, by detecting the electric quantity of the battery module 20 through the control module 30, the electric quantity of the battery module 20 is controlled to be between the first preset threshold and the second preset threshold, that is, the electric quantity of the battery module 20 is controlled to be at the optimal electric quantity, so that overcharge and overdischarge of the battery module 20 can be prevented, and meanwhile, the protection effects of energy conservation, environmental protection and operation safety of the battery module 20 are achieved.
Alternatively, when the control module 30 detects that the idle time of the elevator driving device 2 is less than the preset threshold, the control module 30 determines that the elevator driving device 2 is in a normal working state. The control module 30 detects whether the battery module 20 is operating normally based on the elevator driving apparatus 2 being in a normal operating state. When the control module 30 detects that the battery module 20 normally operates, the control module 30 controls the second switching unit 21 to continuously supply power to the elevator driving apparatus 2 in a normal operation state from the battery module 20, and simultaneously controls the second switching unit 21 to connect the charging module 10 with the battery module 20, so that the charging module 10 charges the battery module 20. When the control module 30 detects that the battery module 20 is faulty, the control module 30 controls the second switch unit 21 to disconnect the charging module 10 from the battery module 20, so that the charging module 10 stops charging the faulty battery module 20, and at this time, the charging module 10 is connected to the elevator driving device 2, and the electric energy provided by the external power source 40 to the charging module 10 is directly output to the elevator driving device 2.
Different from the prior art, the power supply control system 1 of the present embodiment is applied to an elevator driving device 2, and includes a charging module 10, a battery module 20, and a control module 30, wherein: the charging module 10 is respectively connected with an external power source 40 and the battery module 20, and is used for charging the battery module 20; the battery module 20 is connected with the elevator driving device 2 and used for supplying power to the elevator driving device 2; the control module 30 is respectively connected with the elevator driving device 2, the charging module 10 and the battery module 20; the control module 30 is configured to determine whether an idle time of the elevator driving apparatus 2 is greater than a preset threshold; if yes, based on the elevator driving device 2 being in an idle state, the control module 30 further determines whether the external power source 40 supplies power to the charging module 10; if the control module 30 determines that the external power source 40 does not stop supplying power to the charging module 10, the control module 30 detects the amount of power of the battery module 20 and controls the charging module 10 to charge the battery module 20 according to the amount of power of the battery module 20. In this way, the battery module 20 is used for directly supplying power to the elevator driving device 2, the electric quantity loss caused when an emergency power supply is arranged in the power supply control system 1 of the elevator is solved, the size and the manufacturing cost of the system are reduced at the same time, the electric quantity of the battery module 20 is managed when the elevator driving device 2 is in an idle state through the control module 30, the electric quantity of the battery module 20 is controlled to be in the optimal electric quantity, overcharge and overdischarge of the battery module 20 can be prevented, and meanwhile, the energy-saving, environment-friendly and safe operation protection effects on the battery module 20 are achieved.
Referring to fig. 5, fig. 5 is a schematic structural view of a first embodiment of an elevator system 3 according to the present invention. As shown in fig. 5, the elevator system 3 includes a power supply control system 1 and an elevator driving device 2, the power supply control system 1 is connected to the elevator driving device 2 for controlling the elevator driving device 2, and the working principle of the power supply control system 1 is the same as that explained in the above embodiments, and is not described herein again.
The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes performed by the present specification and the attached drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A power supply control method is characterized in that an execution main body of the method is a power supply control system which comprises a charging module and a battery module and is applied to an elevator driving device, and the control method comprises the following steps:
judging whether the idle time of the elevator driving device is greater than a preset threshold value or not;
if so, the elevator driving device is in an idle state, and whether an external power supply supplies power to the charging module is further judged;
and if the external power supply does not stop supplying power to the charging module, detecting the electric quantity of the battery module, and controlling the charging module to charge the battery module according to the electric quantity of the battery module.
2. The control method according to claim 1, wherein the step of detecting the amount of power of the battery module and controlling the charging module to charge the battery module according to the amount of power of the battery module comprises:
controlling the charging module to charge the battery module, and judging whether the electric quantity of the battery module is greater than a first preset threshold value of the electric quantity of the battery module;
if yes, controlling the charging module to stop charging the battery module, and further controlling the battery module to continuously supply power to the elevator driving device in an idle state;
judging whether the electric quantity of the battery module is smaller than a second preset threshold of the electric quantity of the battery module;
and if so, controlling the charging module to charge the battery module.
3. The control method according to claim 2, wherein the step of detecting the amount of power of the battery module and controlling the charging module to charge the battery module according to the amount of power of the battery module further comprises:
if the electric quantity of the battery module is judged to be smaller than a first preset threshold value of the electric quantity of the battery module, controlling the charging module to charge the battery module, and further controlling the battery module to continuously supply power to the elevator driving device in an idle state;
and if the electric quantity of the battery module is judged to be larger than a second preset threshold value of the electric quantity of the battery module, controlling the charging module to stop charging the battery module.
4. The control method according to claim 1, characterized by further comprising:
and if the external power supply stops supplying power to the charging module, controlling the battery module to stop supplying power to the elevator driving device so as to control the power supply control system to be in an energy-saving state.
5. The control method according to claim 1, wherein after determining that the external power supply does not stop supplying power to the charging module, the control method further comprises:
judging whether the battery module works normally or not;
and if the battery module works abnormally, controlling the charging module to supply power to the elevator driving device.
6. A power supply control system for implementing the power supply control method according to any one of claims 1 to 5, comprising a charging module, a battery module, and a control module, wherein:
the charging module is respectively connected with an external power supply and the battery module and is used for charging the battery module;
the battery module is connected with the elevator driving device and used for supplying power to the elevator driving device;
the control module is respectively connected with the elevator driving device, the charging module and the battery module;
the control module is used for judging whether the idle time of the elevator driving device is larger than a preset threshold value or not;
if so, the control module further judges whether the external power supply supplies power to the charging module based on the fact that the elevator driving device is in an idle state;
if the control module judges that the external power supply does not stop supplying power to the charging module, the electric quantity of the battery module is detected, and the control module controls the charging module to charge the battery module according to the electric quantity of the battery module.
7. The control system of claim 6,
if the control module judges that the external power supply stops supplying power to the charging module, the control module controls the battery module to stop supplying power to the elevator driving device so as to control the power supply control system to be in an energy-saving state.
8. The control system of claim 6,
the control module is used for judging whether the battery module works normally or not;
and if the battery module is judged to work abnormally, the control module controls the charging module to supply power to the elevator driving device.
9. The control system of claim 6, wherein the power supply control system further comprises:
the first switch unit is respectively connected with the external power supply and the charging module;
and the second switch unit is arranged in the battery module and is respectively connected with the battery module, the charging module and the elevator driving device.
10. An elevator system, characterized in that it comprises a power supply control system and an elevator drive, the power supply control system being connected to the elevator drive for controlling the elevator drive, the power supply control system being the power supply control system according to any of claims 6-9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2022108791617 | 2022-07-25 | ||
| CN202210879161 | 2022-07-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116148677A (en) * | 2023-04-17 | 2023-05-23 | 北京日立电梯工程有限公司 | Elevator emergency power supply electric quantity monitoring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116148677A (en) * | 2023-04-17 | 2023-05-23 | 北京日立电梯工程有限公司 | Elevator emergency power supply electric quantity monitoring system |
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