JP5523080B2 - Elevator power control device, elevator power control method, and power control program - Google Patents

Description

  The present invention relates to an elevator power supply control device, an elevator power supply control method, and a power supply control program, and more particularly, to charging of a storage battery that supplies power during a power failure.

  If the commercial power supply fails while the elevator car is moving up and down, the power to the motor is cut off and the car stops emergency. In some cases, it stops between the floors and traps passengers in the car. In such a case, the automatic landing device at the time of a power failure gives power to an electric motor by a storage battery, raises and lowers a car to the nearest floor, and rescues passengers.

  The storage battery of the automatic landing device at the time of a power failure needs to be kept in a usable state at all times when a power failure occurs. As a technique related to charging of a storage battery, a method is proposed in which after a power recovery from a power failure, the storage battery is rapidly charged and switched to trickle charging when the charging current value reaches a predetermined value (see, for example, Patent Document 1). ). As another method, a method of detecting the voltage of the storage battery and switching the charging mode (rapid / trickle charge) based on the voltage value has been proposed (for example, see Patent Document 2).

  In addition, from the load / position information of the car at the time of emergency stop due to a power failure, the capacity required to move the car up and down to the floor directly above and below is calculated, and the car is moved up and down to the floor with less energy consumption. Is also known (see, for example, Patent Document 3).

JP 59-13424 A JP 2001-247273 A JP 2005-126171 A

  Since rapid charging of a storage battery generally imposes a burden on the storage battery and shortens the life of the storage battery, trickle charging is the mainstream charging method for a storage battery that is used less frequently, such as an automatic landing device during a power failure. On the other hand, if power outages occur frequently in a short time, the trickle charge will not be able to charge the storage battery in time, causing an elevator passenger confinement accident due to power outages.

  Therefore, it is required to switch between rapid charging and trickle charging as necessary. However, in the case of the methods disclosed in Patent Documents 1 and 2, a current detector or a voltage detector is necessary, which increases the size of the device. Note that trickle charging refers to slow charging with a current equal to or less than the current value determined by the specifications of the storage battery.

  The present invention has been made based on the above problems, and in an elevator power supply control device including a storage battery that supplies power in the event of a power failure, it is preferable to switch between rapid charging and trickle charging without increasing the size of the device. The purpose is to do.

In order to solve the above-described problem, an aspect of the present invention is an elevator power control device including a storage battery that supplies power in the event of a power failure, and an electric motor that raises and lowers the elevator car based on power supplied from the outside A power supply circuit that generates power to be supplied to, a storage battery that supplies power to the electric motor in the event of a power failure of the power supplied from the outside, a charging circuit that charges the storage battery based on the power supplied from the outside, A charging control unit that controls charging by the charging circuit; a remaining capacity estimating unit that estimates a remaining capacity of the storage battery; and a timer that counts time; and the charging control unit determines a total capacity of the storage battery to a predetermined value. It is possible to switch between a first charging mode for charging over a period of time and a second charging mode for charging the entire capacity of the storage battery in a shorter period than the first charging mode. Switching on the basis of the remaining capacity which is the estimated said a remaining capacity of the battery at the time of returning from a power failure the first charging mode and a second charging mode, the remaining capacity estimating section, a power outage Recovery from power outage by calculating the power consumption during the power outage period based on the count value of the time from the occurrence to the completion of emergency landing operation to land the elevator car on any floor The remaining capacity of the storage battery when estimated is estimated.

Here, includes an operation history information storage unit that stores information of an operation history of the elevators in the blackout period, the power consumption information storage unit for storing information of the power consumption by each operation of the elevator, the remaining volume The amount estimation unit has a function of estimating the remaining capacity of the storage battery when returning from a power failure by calculating power consumption in the power failure period based on the information of the operation history and the information of the power consumption, When it is determined that the storage battery is fully charged based on the count value, all of the operation history information stored in the operation history information storage unit is deleted, and the operation history information storage unit stores the operation history information. If no battery is stored, it is preferable to determine that the storage battery is fully charged.

Another aspect of the present invention is an elevator power supply control device including a storage battery that supplies power in the event of a power failure, and supplies power to an electric motor that raises and lowers the elevator car based on power supplied from the outside. A power supply circuit that generates power, a storage battery that supplies power to the electric motor in the event of a power failure of the power supplied from the outside, a charging circuit that charges the storage battery based on the power supplied from the outside, and the charging circuit A charge control unit that controls charging; a remaining capacity estimation unit that estimates a remaining capacity of the storage battery; and the charge control unit that charges the entire capacity of the storage battery over a predetermined period; and It is possible to switch between the second charging mode in which the entire capacity of the storage battery is charged in a shorter period than the first charging mode, and the remaining capacity of the storage battery when restored from a power failure When the estimated remaining capacity is less than a predetermined threshold, the mode is switched to the second charging mode, and when it is expected that the power supply from the external power supply will occur frequently, the frequency is low. It is characterized in that a larger value is used as the threshold value than a case where it is expected.

  In addition, the charging control unit starts the first charging when the remaining capacity estimated by the remaining amount estimating unit becomes a predetermined value after starting the charging of the storage battery according to the second charging mode. It is preferable to switch to the mode.

  Further, the predetermined value can be a value estimated as electric power required for one emergency landing operation for landing the elevator car on any floor after a power failure occurs.

  In addition, the charging control unit may start the first charging when the remaining battery estimation unit estimates that the storage battery is fully charged after starting the charging of the storage battery according to the second charging mode. You may switch to a charge mode.

  The first charging mode is preferably trickle charging.

  Moreover, it is preferable that the said 1st charge aspect is a charge aspect which charges the said storage battery with the electric current value of 1/30 or less of the value of the electric current which can be discharged for 1 hour in the state in which the said storage battery is a full charge.

Another aspect of the present invention is an elevator power control method for controlling the power supply of an elevator equipped with a storage battery that supplies power in the event of a power failure, wherein the remaining capacity of the storage battery when the power is restored from the power failure occurs. was estimated by calculating the power consumption in the power failure period based on the count value of the time until emergency landing operation for implantation in either the floor of the car of the elevator is completed after, the The first charging mode for charging the full capacity of the storage battery over a predetermined period and the second charging mode for charging the full capacity of the storage battery in a shorter period than the first charging mode are estimated. Switching based on the remaining capacity of the storage battery.

Another aspect of the present invention is a power supply control program for controlling the power supply of an elevator equipped with a storage battery that supplies power at the time of a power failure, and the remaining capacity of the storage battery when the power is restored from the power failure occurs. estimating by calculating the power consumption in the power failure period based on the count value of the time until emergency landing operation for implantation in either the floor of the car of the elevator is completed after, The first charging mode for charging the full capacity of the storage battery over a predetermined period and the second charging mode for charging the full capacity of the storage battery in a shorter period than the first charging mode are the estimated. The information processing apparatus is caused to execute the step of switching based on the remaining capacity of the storage battery.

  ADVANTAGE OF THE INVENTION According to this invention, in the elevator power supply control apparatus provided with the storage battery which supplies electric power at the time of a power failure, switching with rapid charge and trickle charge can be performed suitably, without causing the enlargement of an apparatus.

It is a figure showing the whole elevator composition concerning an embodiment of the present invention. It is a block diagram which shows the function structure of the control arithmetic unit which concerns on embodiment of this invention. It is a figure which shows the example of the information memorize | stored in the information storage part which concerns on embodiment of this invention. It is a figure which shows the transition of the estimation residual amount of the storage battery which concerns on the comparative example of this invention. It is a figure which shows the transition of the estimation residual amount of the storage battery which concerns on embodiment of this invention. It is a flowchart which shows the switching operation | movement of the charge aspect which concerns on embodiment of this invention.

Embodiment 1 FIG.
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram illustrating an example of an elevator control device and an elevator including an elevator power supply control device according to the present embodiment. In this embodiment, an inverter-driven rope type elevator will be described as an example.

  In general, the drive system of an inverter-driven rope elevator is a converter 2 that converts an AC voltage of a commercial power source 1 into a DC voltage, a capacitor 3 that smoothes the output voltage of the converter 2, and a capacitor 3 that smoothes the output voltage. A PWM inverter 4 that converts the obtained DC voltage into an AC voltage of variable voltage and variable frequency, an electric motor 5 that is fed from the PWM inverter 4, a pulley 6 that is connected to the electric motor 5, and a pulley 6 It consists of a car 7 and a counterweight 8.

  The PWM inverter 4 is controlled by a command from the control arithmetic unit 9 and drives the motor 5 to raise and lower the car 7. That is, the PWM inverter 4 functions as a drive unit that drives the electric motor 5 that moves the car 7 up and down. Further, the converter 2 and the capacitor 3 function as a power supply circuit that generates electric power for driving the electric motor. The control arithmetic unit 9 calculates a signal to the PWM inverter 4 based on the position and load of the car 7 detected from the position detector 10 and the load detector 11, respectively. Furthermore, the control arithmetic device 9 according to the present embodiment includes a function of performing switching control of the charging mode of the storage battery 17 mounted on the automatic landing device 13 during a power failure. Functions included in the control arithmetic unit 9 will be described with reference to the drawings.

  FIG. 2 is a block diagram illustrating a functional configuration of the control arithmetic device 9 according to the present embodiment. As illustrated in FIG. 9, the control arithmetic device 9 according to the present embodiment includes a main control unit 901, an operation signal acquisition unit 902, a position / load signal acquisition unit 903, an electric motor control unit 904, a charge switching unit 905, and an information storage unit. 906 is included.

  The main control unit 401 is a control unit that controls the entire elevator by controlling each unit included in the control arithmetic device 9. The operation signal acquisition unit 902 acquires an operation signal that is a signal in response to pressing of an operation button such as a door opening / closing button and a destination floor designation button in the car 7 or a call button provided in a hall of each floor. Then, operation information corresponding to the acquired signal is input to the main control unit 901.

  The position / load signal acquisition unit 903 acquires signals output from the position detector 10 and the weight detector 11 and inputs information indicating the position and load in the hoistway of the elevator car 7 to the main control unit 901. That is, the position / load signal acquisition unit 903 functions as a car position recognition unit. Examples of the position detector 10 include a mechanism in which an optical sensor provided in the car 7 detects a shielding plate provided in each floor, and accumulation of the number of pulses output by a pulse encoder provided in the electric motor 5. A mechanism for detecting the position based on the above can be used. In the present embodiment, a pulse encoder provided in the electric motor 5 is used as the position detector 10.

  The electric motor control unit 904 outputs a signal for driving the electric motor 5 to the PWM inverter 4 based on the control of the main control unit 901 to raise and lower the elevator car 7. The charge switching unit 905 controls the charging circuit switching device 14 mounted on the automatic landing device 13 at the time of a power failure based on the control of the main control unit 901 to switch between rapid charging and trickle charging of the storage battery 17. That is, the charge switching unit 905 functions as a charge control unit. The information storage unit 906 is a storage unit that stores information serving as a determination criterion when the charge switching unit 905 controls the charging circuit switching device 14, and information is stored by the main control unit 901.

  Here, an example of information stored in the information storage unit 906 will be described with reference to FIG. As illustrated in FIG. 3, the information storage unit 906 stores information on a power consumption table and an operation log during a power failure. As shown in FIG. 3, the power consumption table is information in which the operation of the elevator is associated with the capacity of the storage battery consumed when the operation is performed. That is, the information storage unit 906 functions as an operation history information storage unit and a power consumption information storage unit.

  In the example of FIG. 3, the power consumption is shown as a percentage “%” with respect to the total capacity of the storage battery 17. For example, when “motor drive” is performed, “1”% of the power of the storage battery 17 per unit time Consume. Note that “@” in “motor drive @” indicates that the amount of power consumption per unit time. The information stored in the power consumption table includes a series of processes executed during a power outage such as “emergency landing” in addition to the power consumption for each detailed operation such as “motor drive” and “brake release”. May be the amount of power consumed by.

  As shown in FIG. 3, the operation log at the time of a power failure is log information of operations executed at the time of a power failure. When a power failure occurs in an elevator, in general, an “indicator control” and “announcement” of an anomaly indicating an abnormality is executed, followed by “brake release” of the car 7, and the car 7 is moved to the nearest floor. "Motor drive" is executed so as to move the Then, when the car 7 reaches the nearest floor, “door opening” is executed. These operations are executed according to the control of the main control unit 901, respectively. The main control unit 901 controls the above operation and simultaneously stores the operation log in the information storage unit 906. Thereby, operation log information at the time of a power failure as shown in FIG. 3 is stored.

  Each functional block shown in FIG. 2 is realized by a configuration of a general information processing apparatus such as a CPU (Central Processing Unit), a RAM (Random Access Memory), and a ROM (Read Only Memory) and dedicated hardware. . Specifically, a program stored in a storage medium such as a ROM is loaded into the RAM, and each functional block shown in FIG. 2 is configured by a software control unit that operates according to the control of the CPU and dedicated hardware. .

  The control power source 12 converts the AC voltage of the commercial power source 1 into an appropriate voltage and supplies power to the control arithmetic device 9. The control power supply 12 supplies power for charging the storage battery 17 mounted on the automatic landing device 13 during a power failure. That is, the control power supply 12 also functions as a charging circuit.

  The automatic landing device 13 at the time of a power failure includes a charging circuit switching device 14, a trickle charging resistor 15, a quick charging resistor 16, a storage battery 17, a DC / DC converter 18, and a normally closed contact 19. In normal times, the storage battery 17 is charged via the trickle charging resistor 15 by the power supply from the control power supply 12. At this time, since the normally closed contact 19 is disconnected, the power source of the storage battery 17 is not fed to the PWM inverter 4 and the DC / DC converter 18.

  As described above, the charging via the trickle charging resistor 15 is performed by slowly charging the current of the storage battery 17 with a current equal to or less than the current value determined by the specification of the storage battery. This is a charging mode for charging. Here, generally, the capacity of the storage battery is expressed in units of milliampere hours (mAh). For example, a storage battery having a capacity of N (mAh) indicates that a current of N (mA) can flow for 1 hour. In trickle charging according to the present embodiment, when the capacity of the storage battery 17 is N (mAh), charging is performed with a current of N / 50 to N / 30 (mA).

  When a power failure occurs in the commercial power source 1, the normally closed contact 19 is connected, and power supply to the PWM inverter 4 and the DC / DC converter 18 is started by the storage battery 17. When the car 7 stops between the floors due to a power failure, the PWM inverter 4 and the control arithmetic device 9 operate by feeding power from the storage battery 17 to raise and lower the car 7 to the nearest floor and rescue the passengers. .

  The commercial power supply 1 is provided with a normally open contact 20, which is normally connected, but is disconnected while the automatic landing device 13 is operating during a power failure. This prevents the commercial power supply 1 and the storage battery 17 from being mixed when the commercial power supply 1 is restored. After the operation of the automatic landing device 13 at the time of a power failure is completed, the normally open contact 20 is connected and the commercial power source 1 is restored.

  In such an elevator apparatus, the gist according to the present embodiment is that the charge switching unit 905 is charged based on the information stored in the information storage unit 906 and other situations when the power is restored from the power failure. Is to switch. The charge switching unit 905 according to the present embodiment estimates the remaining capacity of the storage battery 17 based on the information stored in the information storage unit 906, and performs trickle charging and quick charging by the charging circuit switching device 14 according to the remaining capacity. Is switched.

  Generally, the storage battery 17 of the automatic landing device 13 at the time of a power failure has a capacity capable of several automatic landing operations at full charge. Here, as shown in FIG. 4 (a), the capacity at full charge is 100 (%), and the automatic landing operation due to a power outage differs in the capacity discharged from the storage battery 17 depending on the position of the car 7, Assume that 30% discharge occurs in one automatic landing operation as associated with “emergency landing” in FIG. 3. Further, it is assumed that the charge is 0.3 t in proportion to the time t (min) in the trickle charge, and 3 t in the quick charge. That is, rapid charging is a charging mode in which the entire capacity of the storage battery 17 can be charged in a shorter period than trickle charging.

  Here, assuming that a power failure has occurred and that the automatic landing operation for the rescue of passengers has been performed once is stored in the operation log at the time of power failure, the charge switching unit 905 is as shown in FIG. The remaining capacity of the storage battery 17 is estimated to be 70 (%). Thereafter, when the commercial power source 1 recovers, it is charged 0.3 t in proportion to the time t (min). Time measurement utilizes a timer function of a microcomputer generally used in the control arithmetic unit 9. If there is a single power outage, it can be fully charged with trickle charging.

  On the other hand, if a power failure occurs repeatedly every 10 minutes, the remaining capacity of the storage battery 17 is 16 (%) at the time of the third power failure as shown in FIGS. . Here, when a power failure occurs after 10 minutes, the remaining capacity of the storage battery 17 is 19 (%), and as shown in FIG. 3, the power consumption of “emergency landing” is set to 30 (% ), The automatic landing operation becomes impossible, and passengers are trapped.

  Therefore, when the estimated value of the remaining capacity of the storage battery 17 falls below a predetermined threshold value set in advance (30 (%) for one “emergency landing” operation), the charge switching unit 905 The charging circuit switching device 14 switches from trickle charging to rapid charging. With such a configuration, as shown in FIGS. 5A to 5G, the remaining capacity of the storage battery 17 is estimated to be 16 (<30) at the time of the third power failure. 905 switches the charging method of the storage battery 17 from trickle charging to a quick charging circuit. Therefore, since the remaining capacity is estimated to be 46 by the time of the power failure after 10 minutes, automatic landing operation is possible.

  Thereafter, the commercial power source 1 recovers and rapidly charges until full charge, but switches to trickle charge when full charge is estimated. By doing in this way, the quick charge which gives a burden to the storage battery 17 can be reduced as much as possible, and also a passenger can be rescued from the frequent power failure.

  An operation in which the power supply is restored and the charging mode of the storage battery 17 is switched after a power failure occurs in the elevator according to the present embodiment will be described with reference to the flowchart of FIG. As shown in FIG. 6, when a power failure occurs during the operation of the elevator (S601), the elevator is brought to an emergency stop (S602). As a result, the power supply system is switched as described above, the PWM inverter 4 and the DC / DC converter 18 are operated by the power supply of the storage battery 17, and the control arithmetic device 9 is operated by the power supply of the DC / DC converter 18.

  When the power supply system is switched, the main control unit 901 stores the storage battery 17 based on the power consumption table stored in the information storage unit 906, the operation log during power failure, and the count value of a timer provided in the control arithmetic unit 9. An estimated value of the remaining capacity (hereinafter referred to as an estimated remaining amount) is calculated, and it is determined whether or not the calculated estimated remaining amount is greater than or equal to the amount of power required for one emergency landing operation operation (S603).

  When the main control unit 901 calculates the estimated remaining amount of the storage battery 17 in S603, the main control unit 901 refers to the operation content stored as an operation log at the time of a power failure one by one, and uses the operation content in the power consumption table. Accumulate the associated power consumption. In the example of FIG. 3, there is an item “motor drive * 13”. In this case, the main control unit 901 accumulates 13 times the power consumption associated with “motor drive @”. This integrated value is an estimated value of the amount of power consumed in the storage battery 17 (hereinafter referred to as an estimated power consumption value).

  Further, the main control unit 901 calculates a charge amount corresponding to the count value based on the count value of the timer during the period in which the quick charge is executed in the storage battery 17 and the count value of the timer in the period in which the trickle charge is executed. . This calculated value is an estimated value of the amount of power charged with respect to the power consumed from the storage battery 17 (hereinafter referred to as a charged power amount estimated value). In S603, the estimated remaining amount is calculated by subtracting the estimated power consumption amount from 100 (%) and adding the estimated charge energy amount.

  As a result of the determination in S603, if the remaining capacity is insufficient (S603 / NO), the process is terminated while the elevator is stopped. When the remaining capacity is for one landing operation (S603 / YES), the main control unit 901 controls the electric motor control unit 904 to execute the emergency landing operation to raise and lower the car 7 to the nearest floor, The operation log is stored in the information storage unit 906 (S604).

  Thereafter, when the commercial power source 1 is restored (S605 / YES), the charge switching unit 905 estimates the remaining capacity of the storage battery 17 based on the information recorded in the information storage unit 906 (S606), and the estimated remaining amount and a predetermined threshold value. Are compared (S607). In S606, the charge switching unit 905 calculates the estimated remaining amount by the same method as that described in S603. That is, in S606, the charge switching unit 905 functions as a remaining capacity estimation unit.

  Here, the “threshold value” determined in S607 is, for example, the power consumption required for one emergency landing operation, which is determined in S603. Thereby, in order to suppress the deterioration of the storage battery 17, the charge of the storage battery 17 is performed so as to secure a power supply capacity capable of at least one emergency landing operation when a power failure occurs while reducing the period of rapid charging. Can be controlled.

  As a result of the determination in S607, when the estimated remaining amount is equal to or greater than the predetermined threshold (S607 / NO), the charge switching unit 905 controls the charging circuit switching device 14 to charge by trickle charging of the storage battery 17 (S610). The process is terminated, that is, the normal elevator operation is resumed. On the other hand, when the estimated remaining amount is less than the predetermined threshold, the charge switching unit 905 controls the charging circuit switching device 14 to charge the storage battery by rapid charging (S608). Thereby, the power supply for emergency landing operation can be secured quickly so that a passenger is not confined in the car 7 at the time of a power failure.

  Thereafter, the charge switching unit 905 determines whether or not the storage battery 17 is fully charged based on the count value of a timer provided in the control arithmetic device 9 (S609), and when the storage battery is fully charged. Then, the charging circuit switching device 14 is controlled to switch to trickle charging (S610), and the process is terminated. Thereby, the quick charge period of the storage battery 17 can be reduced. On the other hand, before the storage battery 17 is fully charged (S609 / NO), when a power failure occurs again (S611 / YES), the main control unit 901 repeats the processing from S602. By such processing, the operation after the power failure occurs in the elevator according to the present embodiment is completed.

  As described above, according to this embodiment, the main control unit 901 stores the operation at the time of power failure in the information storage unit 906 as an operation log at the time of power failure, and the charge switching unit 905 is stored in the information storage unit 906. In order to estimate the remaining capacity of the storage battery 17 on the basis of the information and the count value of the timer and to switch the charging mode of the storage battery 17, the elevator power supply control apparatus having a storage battery that supplies power at the time of a power failure can be increased in size. It is possible to suitably switch between rapid charging and trickle charging without incurring

  In the above-described embodiment, the determination criterion of S609 is full charge. However, the determination criterion of S609 is not full charge, and may be, for example, the amount of power required for one emergency landing operation as in S603. Thereby, while further reducing the quick charge period of the storage battery 17, the charge of the storage battery 17 can be controlled so as to secure a power supply capacity capable of at least one emergency landing operation. Further, the determination criterion of S609 may be the threshold value of S607.

  In the above embodiment, as an example of the threshold value in S607, the amount of power required for one emergency landing operation, which is the determination criterion in S603, has been described, but other values may be used. For example, when the frequency of power outages is expected to be high, the amount of power required for two emergency landing operations may be used, or the amount of power that is 50% to 70% of the full charge of the storage battery 17 may be used. .

  In the above embodiment, the deletion of the information stored in the information storage unit 906 is not mentioned. Here, based on the power consumption amount table stored in the information storage unit 906, the operation log at the time of power failure, and the count value of the timer provided in the control arithmetic unit 9, the state of the storage battery 17 is a fully charged state. When it is determined, it is preferable to clear the information on the operation log at the time of power failure stored in the information storage unit 906. Thereby, when the charge switching unit 905 calculates the estimated remaining amount of the storage battery 17 in S603, the storage battery 17 is in a fully charged state without performing calculation and having no log information recorded in the operation log during a power failure. It can be determined that the processing can be simplified.

Embodiment 2. FIG.
In Embodiment 1, the aspect which estimates the residual amount of the storage battery 17 based on the information of the operation log at the time of a power failure, the information of a consumption output table, and the count value of a timer was demonstrated as an example in S606. In addition, it is also possible to estimate the discharge capacity of the storage battery 17 by automatic landing operation based on the time required for landing. When stopping between floors due to a power failure, the distance to the nearest floor varies depending on the situation, but it took time to land by automatic landing operation using the timer function of the microcomputer used in the control arithmetic unit 9 The time t (min) is measured, and the time is converted into the discharge capacity of the storage battery 17 (for example, 10 t). Even with such a configuration, it is possible to obtain the same effect as in the first embodiment.

Embodiment 3 FIG.
In the present embodiment, in S606, the discharge capacity of the storage battery 17 by the automatic landing operation is estimated from the distance to the landing. When the vehicle stops between the floors due to a power failure, the stop position of the car 7 can be detected by the position detector 10, so that the distance x (min) to the nearest floor can be calculated. The remaining capacity of the storage battery 17 can be estimated by converting the distance into the discharge capacity of the storage battery 17 (for example, 15x). Even with such a configuration, it is possible to obtain the same effect as in the first embodiment.

1 Commercial power supply,
2 converter,
3 capacitors,
4 PWM inverter,
5 Electric motor,
6 pulley,
7 Car,
8 counterweight,
9 Control arithmetic unit,
10 position detector,
11 Load detector,
12 Control power supply,
13 Automatic landing system at power failure,
14 charging circuit switching device,
15 trickle charge resistance,
16 Quick charge resistance,
17 Storage battery,
18 DC / DC converter,
19 Normally closed contact,
20 normally open contacts,
901 main control unit,
902 operation signal acquisition unit,
903 position detection signal acquisition unit,
904 motor controller,
905 charge switching unit,
906 Information storage unit

Claims (10)

An elevator power supply control device equipped with a storage battery for supplying power during a power failure,
A power supply circuit that generates electric power to be supplied to an electric motor that raises and lowers the elevator car based on an externally supplied power;
A storage battery for supplying power to the motor at the time of a power failure of the power supplied from the outside;
A charging circuit for charging the storage battery based on a power source supplied from the outside;
A charge control unit for controlling charging by the charging circuit;
A remaining capacity estimating unit for estimating a remaining capacity of the storage battery;
A timer for counting time,
The charging control unit includes a first charging mode that charges the entire capacity of the storage battery over a predetermined period and a second charging that charges the entire capacity of the storage battery in a period shorter than the first charging mode. The mode can be switched, the remaining capacity of the storage battery when returning from a power failure, and switching between the first charging mode and the second charging mode based on the estimated remaining capacity,
The remaining capacity estimating section, in the power failure period based on the count value of the time until the emergency landing operation for landing the car of the elevator to one of floors from power failure is completed An elevator power supply control device that estimates the remaining capacity of the storage battery when returning from a power failure by calculating power consumption. An operation history information storage unit for storing information on the operation history of the elevator during a power failure period;
A power consumption information storage unit that stores power consumption information for each operation of the elevator,
The remaining capacity estimating section,
Having a function of estimating the remaining capacity of the storage battery when returning from a power failure by calculating power consumption in the power failure period based on the information of the operation history and the information of the power consumption,
When it is determined that the storage battery is in a fully charged state based on the count value, all the operation history information stored in the operation history information storage unit is deleted,
The elevator power supply control device according to claim 1, wherein when the operation history information storage unit does not store any information of the operation history, the storage battery is determined to be in a fully charged state. An elevator power supply control device equipped with a storage battery for supplying power during a power failure,
A power supply circuit that generates electric power to be supplied to an electric motor that raises and lowers the elevator car based on an externally supplied power;
A storage battery for supplying power to the motor at the time of a power failure of the power supplied from the outside;
A charging circuit for charging the storage battery based on a power source supplied from the outside;
A charge control unit for controlling charging by the charging circuit;
A remaining capacity estimating unit for estimating a remaining capacity of the storage battery;
The charge controller is
It is possible to switch between a first charging mode in which the total capacity of the storage battery is charged over a predetermined period and a second charging mode in which the full capacity of the storage battery is charged in a shorter period than the first charging mode. Yes,
When the estimated remaining capacity of the storage battery is less than a predetermined threshold when the battery is restored from a power failure, switch to the second charging mode,
Elevator power control characterized by using a larger value as the threshold when the frequency of power outages of the externally supplied power is expected to be higher than when the frequency is expected to be low apparatus. The charge control unit, the after starting charging of the battery by the second charging mode, when the remaining capacity estimated by the remaining capacity estimating unit reaches a predetermined value, the first charging mode The elevator power supply control device according to any one of claims 1 to 3, wherein the elevator power supply control device is switched to.   The predetermined value is a value estimated as electric power required for one emergency landing operation for landing the elevator car on any floor after a power failure occurs. 5. The power supply control device according to 4. The charge control unit, after starting the charging of the battery by the second charging mode, when the storage battery by the remaining capacity estimating unit is fully charged is estimated, the first charge The power supply control apparatus according to claim 1, wherein the power supply control apparatus is switched to a mode.   The elevator power control apparatus according to any one of claims 1 to 6, wherein the first charging mode is trickle charging.   The first charging mode is a charging mode in which the storage battery is charged with a current value equal to or less than 1/30 of a current value that can be discharged for one hour from a fully charged state. The elevator power supply control device according to any one of 1 to 7. An elevator power control method for controlling the power of an elevator equipped with a storage battery that supplies power during a power failure,
Based remaining capacity of the battery at the time of returning from the power failure, the count value of the time from when the power failure occurs to a very implantation operation to be implanted in either the floor of the car of the elevator is completed Estimated by calculating the power consumption during the power outage period,
The first charging mode for charging the full capacity of the storage battery over a predetermined period and the second charging mode for charging the full capacity of the storage battery in a shorter period than the first charging mode are the estimated. And switching based on the remaining capacity of the storage battery. A power supply control program for controlling the power supply of an elevator equipped with a storage battery that supplies power during a power failure,
Based remaining capacity of the battery at the time of returning from the power failure, the count value of the time from when the power failure occurs to a very implantation operation to be implanted in either the floor of the car of the elevator is completed Estimating by calculating power consumption during the power outage period;
The first charging mode for charging the full capacity of the storage battery over a predetermined period and the second charging mode for charging the full capacity of the storage battery in a shorter period than the first charging mode are the estimated. A power supply control program for causing an information processing device to execute a step of switching based on a remaining capacity of a storage battery.

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