JP4619038B2 - Elevator control device - Google Patents

Description

  TECHNICAL FIELD The present invention relates to an elevator control device that notifies an elevator travelable state at the time of a power failure of a commercial AC power supply.

  In general, an elevator control device is composed of a control drive system that supplies a predetermined electric motor drive power as shown in FIG. 7 and a rope type elevator that raises and lowers a passenger car based on the drive power supplied from the control drive system. Has been.

  The control drive system includes a commercial AC power source 1, a rectifier circuit 2, a smoothing capacitor 3, an inverter 4 that converts DC power smoothed by the smoothing capacitor 3 into AC power having a required frequency and supplies the AC power to an electric motor 11, and the inverter A drive control unit 5 for controlling 4 and the like is provided.

  On the other hand, the rope type elevator includes an electric motor 11, a rope 13 wound around a main sheave 12 connected to a rotation shaft of the electric motor 11, a passenger car 14 and a counterweight 15 suspended from the ends of the rope 13. Is provided. Reference numeral 16 denotes a deflecting sheave.

  By the way, in such an elevator control device, when the car 14 is lifted with a heavier load than the counterweight 15 or when the car 14 is lowered with a heavier load than the counterweight 15, the commercial AC power source 1 → rectifier circuit 2 → smooth A power running operation for supplying electric power generated in the order of the capacitor 3 to the inverter 4 to the electric motor 11 is performed, and conversely, when the car 14 descends in a heavier load state than the counterweight 15 or when the load is lighter than the counterweight 15 When it rises in a state, a regenerative operation for generating electric power is performed in the order of the electric motor 11 → the inverter 4 → the smoothing capacitor 3. During this regenerative operation, the power returning from the electric motor 11 to the inverter 4 is blocked by the rectifier circuit 2, so that the voltage on the inverter input end side increases and damages the elements constituting the rectifier circuit 2 and the inverter 4. There is.

  Therefore, conventionally, since it is necessary to consume power corresponding to the voltage increase due to the power returning from the motor 11 to the inverter 4 during the regenerative operation, a serial connection between the self-extinguishing element 6 and the resistor 7 is provided between the DC output lines of the rectifier circuit 2. When the resistance chopper 8 which is a circuit is connected and the DC voltage between the DC output lines exceeds the set voltage during the regenerative operation, the drive control unit 5 sends a control signal for turning on the self-extinguishing element 6, and the voltage increase The power consumption corresponding to 1 is consumed by the resistor 7 (Patent Document 1).

  However, in such an elevator control apparatus, since the electric power generated from the electric motor 11 during the regenerative operation is consumed as heat by the resistor 7, there is a problem that the electric power obtained by the regenerative operation cannot be used effectively.

Therefore, in the technique of Patent Document 1, in order to solve the above problems, energy that is connected between the input side DC voltage lines of the inverter 4 as shown in FIG. An elevator control device having a storage device 21 and a charge / discharge control unit 22 that determines regenerative operation and power running operation from the voltage across the smoothing capacitor 3 and performs charge / discharge control on the energy storage device 21 has been developed. . During the regenerative operation, the energy storage device 21 is turned on in response to the charge control signal from the charge / discharge control unit 22, and the energy energy during the regenerative operation is stored in the energy storage capacitor 24 via the absorption reactor 23. The power switching device 25 is turned on after being turned on by a control signal from the absorption switching element 25 and the charge / discharge control unit 22, and the power energy stored in the energy storage capacitor 24 is transferred between the DC voltage lines via the discharge reactor 26. A discharge switching element 27 for discharge is provided. Reference numeral 28 denotes a voltage detector.
Japanese Patent Laid-Open No. 10-236743

  Therefore, in the elevator control apparatus as described above, the regenerative operation and the power running operation are determined, the electric power generated from the electric motor 11 during the regenerative operation is accumulated in the energy storage capacitor 24, and the electric power energy accumulated during the power running operation is stored. Is used for powering operation, so that regenerative energy can be used effectively. A battery using a lead storage battery that can be charged and discharged in place of the storage capacitor 24 has been proposed.

  By the way, conventionally, in the above control devices, when the commercial AC power supply 1 fails, the charge / discharge control unit 22 controls the discharge switching element 27 after the power failure and is stored in the storage capacitor 24 or the lead storage battery. By driving the electric energy to the smoothing capacitor 3 side and backing it up, the drive control unit 5 drives the car 14 to the nearest floor or the like.

  However, since it is impossible to determine how much stored energy remains in the storage capacitor 24 or the lead storage battery during a power failure of the commercial AC power supply 1, if the stored energy is exhausted, the car 14 stops as it is, and then how much is moved. It will be in a state where you do not know at all whether you can do it. As a result, although depending on the place where the car 14 is stopped, the passenger is left in the car 14 for a long time, which is very uneasy.

  Further, when the car 14 stops due to the absence of stored energy, it is instructed that the car will not run from the speaker in the car, but the passengers cannot deny anxiety.

  The present invention has been made in view of the above circumstances, and in the event of a power failure or the like, it is possible to report a travelable state based on the stored energy and travel pattern, and passengers can ride safely without being trapped in the car. An object is to provide an elevator control device.

(1) In order to solve the above problems, the present invention converts a rectifier circuit that converts AC power from an AC power source into DC power, and converts the DC power converted by the rectifier circuit into AC power having a variable voltage and variable frequency. Output the inverter, an electric motor driven by the AC power output from the inverter and driving the car, and output AC power of the variable voltage and variable frequency based on a speed command according to a predetermined driving pattern A drive control means having a speed command unit for controlling the inverter, a power storage device provided between the output lines of the rectifier circuit and capable of storing regenerative power energy during the regenerative operation of the motor; and Regenerative power energy is stored in the power storage device during regenerative operation, and power energy stored in the power storage device during power running operation of the electric motor is stored in the inverter. An elevator control device provided with charge / discharge control means for discharging to the motor side,
The power storage energy of the power storage device is calculated at all times, and when the calculated power storage energy falls to a predetermined power storage lower limit energy, an energy shortage detection signal or the calculated power storage energy is output , and the energy shortage is indicated. A storage energy monitoring means for setting a flag, and an energy shortage detection signal or the calculated storage energy received from the monitoring means are calculated from the energy shortage detection signal or the calculated storage energy and the current running pattern. The speed command unit that determines a travelable floor by comparing and determining the energy to be transmitted, and transmits a message indicating that the travel to the travelable floor is possible to the car, and is provided in the car , it is can travel up to the travelable floor transmitted from the speed instruction portion And informing means for informing the message indicating, installed on each floor landing side, when the hall call from the hall call button on each floor landing is performed, not depending on the hall call if it is determined that the energy deficit from the setting flag And a guidance processing device that outputs a message indicating this.

With this configuration, the storage energy monitoring means always calculates the storage energy of the storage device, and when the calculated storage energy falls to a predetermined storage lower limit energy, the energy shortage detection signal Alternatively, the calculated stored energy is output and a flag indicating energy shortage is set .

  Here, upon receiving the energy shortage detection signal or the calculated stored energy, the speed command unit determines a floor that can be traveled by applying a travel pattern, for example, the nearest floor, and from the car to the nearest floor. Since a message indicating that the vehicle can travel is notified, passengers can ride safely without being trapped in the car at least up to the floor where the vehicle can travel due to a power failure or the like.

  When the speed command unit receives an energy shortage detection signal or the calculated stored energy from the stored energy monitoring means and determines that the regenerative operation is based on the travel pattern, the current regenerative operation travel direction Since a message indicating that the vehicle can be driven is notified on the middle floor of the vehicle, it can greatly contribute to the improvement of passenger service even during a power failure.

In addition, when a hall call is made from the hall call button of each floor hall, a guidance process installed on each floor hall side that outputs a message indicating that the hall call cannot be accepted if it is judged from the setting flag that energy is insufficient If the device is provided, it is possible to solve the problem that the elevator user waits for a long time after calling the car on each floor landing side, and the reliability of the elevator user can be ensured.

(2) Further, according to the present invention, the regenerative power energy is stored in the power storage device during the regenerative operation of the motor that is driven by the AC power output from the inverter and operates the car, and is stored in the power storage device during the power running operation of the motor. Is an elevator control device having charge / discharge control means for discharging the generated power energy to the inverter side, where the energy storage energy of the power storage device is always calculated, and the calculated power storage energy falls to a predetermined power storage lower limit energy , and outputs the energy shortage detection signal, and the stored energy monitoring means for setting a flag representing the energy shortage, the regenerative operation of the cab from the traveling direction obtained from the load signal and the traveling pattern of the car and the velocity command section having a regenerative operation determining means for determining the running direction, set in the car and on each floor landing A sound generating means which is, when receiving an operation signal from the car call button destination floor buttons and each floor landing of the passenger in the car, the load signal of the car when it is determined that the energy deficit from the setting flag and the And a guidance command device for outputting a message permitting the destination floor or the car call from the voice generating means based on the traveling direction to be the regenerative operation determined by the regenerative operation determining means.

  With this configuration, the storage energy monitoring means calculates the storage energy of the storage device, and outputs an energy shortage detection signal when the calculated storage energy falls to a predetermined storage lower limit energy. In addition, the speed command section determines and outputs the travel direction for the regenerative operation of the car from the load signal of the car and the travel direction obtained from the travel pattern, and sends them to the guidance command device. This guidance command device receives the operation signal from the destination floor button in the car or the car call button of each floor hall, and when it is determined that the energy shortage detection signal is output from the storage energy monitoring means, Based on the load signal and the traveling direction that is the regenerative operation from the speed command section, a message that allows a destination floor or car call is output from the car or each floor landing, so that the power storage energy of the power storage device is reduced due to a power failure, for example. Even in a small state, passengers and the like can use it in a certain direction of travel with peace of mind, which greatly contributes to improving the service of elevator users.

  In the present invention, the power storage energy of the power storage device decreases in the event of a power failure of the AC power supply, etc., but when the power storage energy decreases to a predetermined power storage lower limit energy, that is, at least the car can travel to the nearest floor. In the energy stage, it informs the speed command section of the energy shortage state, and notifies a message about the possible travel status to the floor in the car, etc. An elevator control device that can ensure the reliability of the user can be provided.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a configuration diagram showing an embodiment of an elevator control apparatus according to the present invention. In the figure, the same or equivalent parts as in FIG.
The elevator control device includes a main circuit drive system that supplies the required AC power to drive the motor 11, and a rope-type elevator that receives the power from the main circuit drive system and that causes the car 11 to move up and down the car 14. And an elevator operation control system, a charge / discharge control system, and a storage energy monitoring system.

  The main circuit drive system includes a rectifier circuit 2 that converts three-phase AC power output from a commercial AC power supply 1 into DC power, a smoothing capacitor 3 that smoothes DC power converted by the rectifier circuit 2, and An inverter 4 is provided which converts the DC power smoothed by the smoothing capacitor 3 into AC power having a required frequency and supplies the AC power to the motor 11.

  As the rope type elevator, one having a configuration generally used in the past is used. For example, an electric motor 11, a rope 13 wound around a main sheave 12 connected to a rotation shaft of the electric motor 11, and an end of the rope 13 A swaying sheave 16 that shifts the suspending position of the rope 13 that leads from the main sheave 12 to the counterweight 15 in order to avoid interference between the cab 14 and the counterweight 15 that are respectively suspended on the parts, and the counterweight 14 and the counterweight 15. Etc. are provided.

  The elevator operation control system includes a speed detection unit 31 that detects the rotational speed of the electric motor 11, and a speed command unit 32 that outputs a speed command corresponding to the travel pattern when an elevator travel pattern is set in advance and an activation command is received. And a speed control unit 33 that compares the motor speed command value from the speed command unit 32 with the detected speed of the speed detection unit 31 and calculates and outputs a torque command value such that the deviation becomes zero. A load detection switch 34 including a plurality of switch elements that are selectively turned on according to the loaded weight of the car 14 is provided.

  The load detection switch 34 is, for example, a switch element 34 (1) that operates when the loading weight of the car 14 is lighter than the required loading weight (balanced weight), and an intermediate weight within a predetermined range including the required loading weight. The switch element 34 (2) that operates sometimes and the switch element 34 (3) that operates when the weight is heavier than the intermediate weight, and a load signal due to the ON operation of these switches is sent to the load signal calculation unit 35. The load signal calculation unit 35 converts the load signal detected by the load detection switches 34 (1) to 34 (3) into a torque compensation value and outputs the torque compensation value. For example, the load detection switches 34 (1) and 34 (2) The load signal detected in 34 (3) has a function of converting to a torque compensation value (rotational power) of -10, 0, +10 and outputting it.

  The elevator operation control system includes a torque command determination unit 36 that calculates and outputs the total torque command value of the torque command value from the speed control unit 33 and the torque compensation value from the load signal calculation unit 35, and the inverter 4. Based on the inverter current detection unit 37 that is provided on the output side and detects the inverter current, the real-time command value of the motor current obtained based on the total torque command value, and the inverter detection current of the current detection unit 37, An inverter current control unit 38 and the like for controlling the three-phase power conversion component are provided.

  Further, as the charge / discharge control system, a plurality of charge / discharge control elements 41a, 41b such as self-extinguishing elements connected between the DC output lines of the rectifier circuit 2 and the common connection of these charge / discharge control elements 41a, 41b are used. A charge / discharge circuit 43 including a DC reactor 42 having a function of smoothing DC power, a power storage device 44, a voltage detection unit 45, a power failure detection unit 46, and a charge / discharge control unit 47. It is configured.

  Here, the power storage device 44 is a secondary battery having a function capable of being repeatedly charged and discharged, and has a function of storing generated power during regenerative operation. The voltage detection unit 45 is a circuit that detects the voltage smoothed by the smoothing capacitor 3 or the voltage between the DC output lines of the rectifier circuit 2, and the detection voltage signal is sent to the charge / discharge control unit 47. The charge / discharge control unit 47 has a function of judging regenerative operation and power running operation from the detected voltage, turning on the charge / discharge control element 41a during regenerative operation, and turning on the charge / discharge control element 41bb during power running operation. In addition, when the charge / discharge control unit 47 receives the power failure detection signal from the power failure detection unit 46, the charge / discharge control unit 47 turns on the charge / discharge control element 41 b and then turns off to convert the stored energy stored in the power storage device 44 into the direct current of the rectifier circuit 2. Has a function of discharging between output lines.

Further, the elevator control device is provided with a stored energy monitoring system as described above.
The storage energy monitoring system includes a storage current detection unit 51 that detects a storage current from a line connected from the charge / discharge circuit 43 to the storage device 44, a storage voltage detection unit 52 that detects a storage voltage of the storage device 44, and these storage currents. When the storage energy of the storage device 44 is calculated from the storage current and storage voltage detected by the detection unit 51 and the storage voltage detection unit 52, and it is determined that the calculated storage energy has decreased to a predetermined storage lower limit energy, A storage energy monitoring unit 53 is provided that sends a shortage detection signal or the calculated amount of stored energy itself to the speed command unit 32 and sets a flag 54 indicating a lack of energy.

  In general, an in-car operation panel 17 is installed on either one of the left and right side plates in the car 14, as shown in FIG. 2, and passengers in the car have a destination floor registration operation on the in-car operation panel 17. Destination floor registration button 17a for performing the operation, speaker 17b as notification means for notifying the travelable state information in the event of a power failure, and the current position of the car 14, the direction of movement, and other information indicating the travel stop state in the event of a power failure. A display device 17c is provided as notification means.

  The speed command unit 32 stores travelable state information in advance, or stores information indicating the travelable state information, for example, “0”, “1”, “2”, and the travelable state based on the determination result. Information is transmitted to the car 14, output from the speaker 17b, or displayed on the display device 17c. When transmitting information indicating the travelable state information, for example, “0”, “1”, “2” from the speed command unit 32, the car 54 checks the flag 54 and stores “0” stored in advance. ”,“ 1 ”,“ 2 ”corresponding to the travelable state information is output from the speaker 17b or displayed on the display device 17c.

  Next, the operation of the elevator control apparatus as described above will be described with reference to FIG. The operations of the elevator operation control system and the charge / discharge control system described above are slightly different from the viewpoint of realizing the object of the invention. Therefore, the storage energy monitoring system and the speed command unit that are closely related to the gist of the invention will be described below. The operation of the car 32 and the car 14 will be described.

  Normally, the current detection unit 51 and the voltage detection unit 52 detect the storage current and the storage voltage flowing through the power storage device 44 and send them to the storage energy monitoring unit 53. The storage energy monitoring unit 53 calculates the storage energy of the storage device 44 based on the storage current and the storage voltage, and compares the calculated storage energy with a predetermined storage lower limit energy. Here, for example, when the commercial AC power supply 1 fails or the DC voltage between the DC output lines of the rectifier circuit 2 decreases due to some failure, the charge / discharge control unit 47 outputs a discharge control signal and stores the power in the power storage device 44. Since the stored power energy is released to the smoothing capacitor 3 side, the stored energy calculated by the stored energy monitoring unit 53 decreases.

  The storage energy monitoring unit 53 determines in advance that the amount of stored energy is necessary for the car 14 to travel with sufficient margin to the lowest floor energy storage, that is, for example, the nearest floor, as the stored energy of the power storage device 44 decreases. When the energy storage lower limit energy is lowered, an energy shortage detection signal or the calculated amount of stored energy itself is sent to the speed command unit 32, and a flag 54 indicating that the energy is insufficient is set.

  As shown in FIG. 3, the speed command unit 32 always outputs a speed command corresponding to a predetermined travel pattern for each predetermined period (S1), while an energy shortage detection signal or calculation from the stored energy monitoring unit 53. The stored amount of stored energy is captured (S2), and the amount of energy calculated from the running pattern is compared with the amount of stored energy of the current power storage device 44 (S3). The comparison determination between the amount of energy calculated from the traveling pattern and the current amount of stored energy is less than the amount of energy calculated from the traveling pattern when, for example, an energy shortage detection signal is captured from the stored energy monitoring unit 53. When the stored energy amount is taken from the stored energy monitoring unit 53, the stored energy amount is compared with the energy amount calculated from the travel pattern, and the current stored energy amount is calculated from the travel pattern. If it is determined that the amount is less than the amount, it is determined that there is only enough energy remaining to drive at least to the nearest floor, and the nearest floor landing command is sent to the speed control unit 33 as a running pattern (S4). ) And pre-stored, for example, “Stop at the nearest floor due to a power failure etc. Information indicating the travelable state information such as “stop to the nearest floor due to a power failure”, for example, “0”, “1” , "2" is transmitted to the car 14, and is output from the speaker 17b installed on the operation panel 17 in the car or displayed on the display device 17c (S5).

  On the operation panel 17 side in the car, when information indicating “I will stop at the nearest floor due to power failure etc.”, for example, “1” is received, the car 14 side determines that the energy shortage is detected from the flag 54. Then, for example, “can be stopped at the nearest floor due to a power failure”, which is the travelable state information corresponding to “1” stored in advance, is output from the speaker 17b or displayed on the display device 17c.

  Then, after the car 14 has landed on the nearest floor under the command of the speed command unit 3, the passenger is taken down and paused (S6).

  If the speed command unit 32 does not capture the energy shortage detection signal or determines that the amount of stored energy calculated is larger than the amount of energy calculated from the travel pattern in step S3, the destination floor in the car Travel according to the destination floor registration by operation of the registration button 17a or the car call registration from the hall side, land on the destination floor or hall call floor (S7), and if there is a next destination floor registration or hall call (S8), The process proceeds to step S1 and the same processing is repeated.

  Since the speed command unit 32 knows the traveling state of the car 14 by power running or regenerative operation, the energy shortage detection signal from the stored energy monitoring unit 53 or the current stored energy amount is calculated from the traveling pattern. Even if it is less than the amount of energy required, if it is determined that the operation is regenerative, for example, “A power outage has occurred, but it will stop at the passenger's destination registration floor in the current direction of travel.” Is sent to the car 14, or a power outage has occurred, but it will stop at the passenger's destination registration floor in the current direction of travel. " It is transmitted to the car 14, and is output from the speaker 17b installed on the operation panel 17 in the car, or displayed on the display device 17c.

  Therefore, according to the embodiment as described above, the regenerative power energy generated from the motor (generator) 11 during the regenerative operation of the car 14 is stored in the power storage device 44, and the stored energy of the power storage device 44 is stored during the power running operation. In the control device used for the driving power of the electric motor 11, the stored energy is calculated from the stored voltage and stored current stored in the power storage device 44. For example, the stored energy of the power storage device 44 is reduced due to a power failure or a circuit failure. When the amount of stored energy decreases to a predetermined storage lower limit voltage that is necessary for running the car 14 with sufficient margin at the nearest floor, for example, the energy shortage detection signal or the calculated amount of stored energy itself is Since this is sent to the speed command unit 32, the speed command unit 32 is based on or calculated based on the energy shortage detection signal. Based on the comparison between the stored energy amount and the energy amount calculated from the travel pattern, the traveling state information that allows the car 14 to travel reliably, for example, information such as stopping at the nearest floor, is obtained from the speaker 17b of the car 14. Because the notification is made, the stored energy of the power storage device 11 is lost at the time of a power failure, and it does not suddenly remain stopped at a place unrelated to the landing floor, so that the passenger can safely rest even if a power failure occurs, for example. 14 and can no longer be trapped in the car.

  In addition, even when the stored energy of the power storage device 11 is less than or equal to a predetermined value, if the current state is in a regenerative operation, the passenger's direction in the current traveling direction is limited only when the car is in the direction of the regenerative operation. Since it is notified from the speaker 17b of the car 14 that the car stops according to the destination registration floor, the passenger can get on the car 14 with peace of mind.

  Note that the storage energy monitoring unit 53 sets the storage lower limit voltage or the storage lower limit energy that is necessary for the storage energy amount to allow the car 14 to travel with sufficient margin, for example, at the nearest floor, but the storage lower limit energy is arbitrarily set. It is possible to set.

  In the above embodiment, the power storage energy monitoring unit 53 constantly calculates the power storage energy of the power storage device 11. For example, when the charge control unit 47 detects a power failure, The configuration may be such that when the power failure notification is received, the stored energy of the power storage device 11 is calculated.

  FIG. 4 is a block diagram showing another embodiment of the elevator control device according to the present invention. In the figure, the same or equivalent parts as in FIG. 1 are denoted by the same reference numerals, and detailed description thereof will be given in FIG.

  In this elevator control device, when the storage energy monitoring unit 53 calculates the storage energy of the storage device 11 and the calculated storage energy amount becomes smaller than a predetermined storage lower limit energy amount, an energy shortage detection flag 54 is obtained. Is the same as FIG.

  In this embodiment, as shown in FIG. 5, a guide speaker 57a is included in one side wall of a landing door 55 installed at a landing on each floor, in addition to a landing call button 56 for upward and downward directions. A guidance processing device 57 is provided.

  When the elevator user operates the hall call button 56, the guidance processing device 57 checks the setting state of the flag 54. If the flag processing unit 57 determines that the energy is insufficient from the flag 54, for example, a car A message such as “The car will not come due to a power outage even if a call is made” or “A car call cannot be reached even if a car call is made” is notified from the guidance speaker 57a.

  Therefore, according to the message notified from the guidance speaker 57a, the elevator user predicts that the power storage device 11 does not have necessary power storage energy due to, for example, a power failure, or the power storage device 11 has no power storage energy required. Regardless, it is possible to avoid a situation in which the passenger feels distrust, such as stopping and confining immediately after traveling with the passenger.

  FIG. 6 is a block diagram showing another embodiment of the elevator control device according to the present invention. In the figure, the same or equivalent parts as in FIG. 1 are denoted by the same reference numerals, and detailed description thereof will be given in FIG.

  In this elevator control device, as in FIG. 4, the storage energy monitoring unit 53 calculates the storage energy of the storage device 11, and when the calculated storage energy amount is smaller than the predetermined storage lower limit energy amount, the energy shortage This is the same as FIG. 1 in that the detection flag 54 is set.

  In this embodiment, when the amount of energy stored in the power storage device 44 from the power storage energy monitoring unit 53 is reduced to a predetermined power storage lower limit voltage that is necessary to drive the car 14 with a sufficient margin on the nearest floor, for example, An energy shortage detection signal or the calculated amount of stored energy itself is sent to the speed command unit 32, and a flag 54 indicating that the energy is insufficient is set. The load signal calculation unit 35 includes a switch element 34 (1) that operates when the load weight of the car 14 from the load detection switch 34 is lighter than the required load weight (balance weight), and the required load weight. However, since the switch element 34 (2) operating at an intermediate weight within a predetermined range and the switch element 34 (3) operating at a weight heavier than the intermediate weight are subjected to a load signal, the weight is lighter than the intermediate weight. The intermediate weight and a weight signal heavier than the intermediate weight are sent to the speed command unit 32.

  Since the speed command unit 32 grasps the travel direction based on the travel pattern and receives the loading weight of the car, for example, when the energy shortage detection signal is received from the storage energy monitoring unit 53, the speed command The traveling direction in which the car 14 is in the regenerative operation can be determined by the regenerative operation determining means 61 provided in the section 32 and is sent to the guidance command device 60.

  The guidance command device 60 stores travelable state information that allows the car to travel based on the travel direction in which the regenerative operation is performed and the loaded weight of the car, even when a shortage of stored energy occurs. Upon receiving an operation signal from the destination floor registration button 17a of the operation panel 17 or the hall call button 56 installed in the hall, the state of the flag 54 is checked. If this is the case, travel to the nearest floor, etc., and stop.However, if the weight is limited to the direction of regenerative operation and is lighter than the intermediate weight due to the relationship between the direction of regenerative operation and the loaded weight of the car As far as calls in the car and hall calls are concerned, for example, “allowing call registration only in the direction of descending due to a power failure etc.” or the speaker 17b on the operation panel 17 or the guidance processing device 5 It informs from the guide speaker 57a.

  Therefore, according to the embodiment as described above, when an operation signal is received from the destination floor registration button 17a, the car call button 56 installed in the hall, or the like, Since the destination direction is specified based on the traveling direction for the regenerative operation and the loaded weight of the car and the use by the elevator user is permitted, it is possible to contribute to the improvement of the service of the elevator user.

  In addition, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention.

  In addition, the embodiments can be implemented in combination as much as possible, and in that case, the effect of the combination can be obtained. Further, each of the above embodiments includes various higher-level and lower-level inventions, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements. For example, when an invention is extracted because some constituent elements can be omitted from all the constituent elements described in the means for solving the problem, the omitted part is used when the extracted invention is implemented. Is appropriately supplemented by well-known conventional techniques.

The block diagram which shows one Embodiment of the elevator control apparatus which concerns on this invention. The figure which shows the condition of the operation panel in a passenger car. The flowchart explaining operation | movement of the speed instruction | command part shown in FIG. The block diagram which shows other embodiment of the elevator control apparatus which concerns on this invention. The figure which shows the guidance processing apparatus installed in the wall surface of each floor hall. The block diagram which shows other embodiment of the elevator control apparatus which concerns on this invention. The block diagram of the conventional elevator control apparatus. The block diagram of the conventional elevator control apparatus which performs charging / discharging operation | movement at the time of regeneration / power running operation.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Commercial AC power source, 2 ... Rectifier circuit, 3 ... Smoothing capacitor, 4 ... Inverter, 11 ... Electric motor, 12 ... Main sheave, 13 ... Rope, 14 ... Ride car, 15 ... Counterweight, 32 ... Speed command part, 33 ... Speed control unit, 34 ... Load detection switch, 35 ... Load signal calculation unit, 36 ... Torque command determination unit, 38 ... Inverter current control unit, 43 ... Charge / discharge circuit, 44 ... Power storage device, 45 ... Voltage detection unit, 46 ... Power failure detection unit, 47 ... Charge / discharge control unit, 51 ... Current detection unit, 52 ... Voltage detection unit, 53 ... Storage energy monitoring unit, 54 ... Flag, 56 ... Cage call button for ascending and descending directions, 57 ... Guide processing device, 60 ... Guide command device.

Claims (4)

A rectifier circuit that converts AC power from an AC power source into DC power, an inverter that converts DC power converted by the rectifier circuit into AC power of variable voltage and variable frequency, and AC power output from the inverter Drive control that has a speed command unit that controls the inverter to output AC power of the variable voltage and variable frequency based on a speed command according to a predetermined travel pattern And a power storage device provided between the output line of the rectifier circuit and capable of storing regenerative power energy during the regenerative operation of the motor, and storing the regenerative power energy in the power storage device during the regenerative operation of the motor, Charge / discharge control means for releasing electric energy stored in the power storage device to the inverter side during powering operation of the motor. A beta control device,
The power storage energy of the power storage device is calculated at all times, and when the calculated power storage energy falls to a predetermined power storage lower limit energy, an energy shortage detection signal or the calculated power storage energy is output , and the energy shortage is indicated. A storage energy monitoring means for setting a flag ;
When receiving the energy shortage detection signal or the calculated stored energy from the monitoring means, the energy shortage detection signal or the calculated stored energy and the energy calculated from the current travel pattern can be compared and judged. The speed command unit that determines a floor and transmits a message to the car indicating that the vehicle can travel to the floor where the vehicle can travel ;
Provided in the passenger in the car, and informing means for informing the message indicating that it is possible to travel to the travelable floor transmitted from the speed command unit,
Guidance processing device that is installed on each floor landing side and outputs a message indicating that it is not possible to respond to the hall call when the hall call is made from the hall call button of each floor hall when it is determined from the setting flag that energy is insufficient An elevator control device comprising: A rectifier circuit that converts AC power from an AC power source into DC power, an inverter that converts DC power converted by the rectifier circuit into AC power of variable voltage and variable frequency, and AC power output from the inverter Drive control that has a speed command unit that controls the inverter to output AC power of the variable voltage and variable frequency based on a speed command according to a predetermined travel pattern And a power storage device provided between the output line of the rectifier circuit and capable of storing regenerative power energy during the regenerative operation of the motor, and storing the regenerative power energy in the power storage device during the regenerative operation of the motor, Charge / discharge control means for releasing electric energy stored in the power storage device to the inverter side during powering operation of the motor. A beta control device,
The power storage energy of the power storage device is calculated at all times, and when the calculated power storage energy falls to a predetermined power storage lower limit energy, an energy shortage detection signal or the calculated power storage energy is output , and the energy shortage is indicated. A storage energy monitoring means for setting a flag ;
When receiving this energy shortage detection signal from the monitoring means or stored energy which the calculated, if it is determined that the regenerative operation from the traveling pattern, can be run in the middle floors in the running direction of the current regeneration operation The speed command unit for transmitting a message representing a certain thing to the car ;
An informing means for informing the message indicating that the vehicle can travel to the intermediate floor in the traveling direction of the regenerative operation, which is provided in the car and is sent from the speed command unit ;
Guidance processing device that is installed on each floor landing side and outputs a message indicating that it is not possible to respond to the hall call when the hall call is made from the hall call button of each floor hall when it is determined from the setting flag that energy is insufficient An elevator control device comprising: In the elevator control device according to claim 1 or 2,
The content of the message to be notified by the notification means is stored in advance on the speed command unit side . A rectifier circuit that converts AC power from an AC power source into DC power, an inverter that converts DC power converted by the rectifier circuit into AC power of variable voltage and variable frequency, and AC power output from the inverter Drive control that has a speed command unit that controls the inverter to output AC power of the variable voltage and variable frequency based on a speed command according to a predetermined travel pattern And a power storage device provided between the output line of the rectifier circuit and capable of storing regenerative power energy during the regenerative operation of the motor, and storing the regenerative power energy in the power storage device during the regenerative operation of the motor, Charge / discharge control means for releasing electric energy stored in the power storage device to the inverter side during powering operation of the motor. A beta control device,
Storage energy monitoring that always calculates the stored energy of the power storage device , and outputs an energy shortage detection signal and sets a flag indicating energy shortage when the calculated stored energy drops to a predetermined lower limit energy storage Means,
The speed command unit comprising regenerative operation determination means for determining a travel direction to be a regenerative operation of the car from a load signal of the car and a travel direction obtained from the travel pattern;
Voice generating means installed in the car and each floor landing;
When an operation signal is received from a destination floor button in the car or a car call button at each floor hall, if it is determined from the setting flag that energy is insufficient, the load signal of the car and the regenerative operation determination means determine An elevator control device comprising: a guidance command device that outputs a message allowing the destination floor or the car call from the voice generation means based on the travel direction to be the regenerative operation .

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