JP2005324887A - Control device of hybrid drive type elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To accomplish saving of the commercial power supply by using an electric storage device effectively in the elevator operating environment. <P>SOLUTION: The invention includes an optimization control device 60 which changes dynamically the control parameters relating to the charge/discharge control of the electric storage device 30 through a specified optimizing computation process at certain time intervals on the basis of the information exhibiting the operating condition of an elevator 10 and the information exhibiting the condition of the electric storage device 30 in order to draw out the performance of the device 30 to the maximum in accordance with the operating condition of the elevator 10. Optimization of the control parameters by this optimization control device 60 allows accomplishing the energy saving of the commercial power supply 16 by using the electric storage device 30 effectively in the elevator operating environment. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a hybrid drive type elevator control device that drives an elevator (car) using regenerative energy, and more particularly to an effective method of using a power storage device in accordance with the operating state of the elevator.

  In general, in an elevator, a car and a counterweight are suspended from both ends of a rope wound around a rotating shaft of an electric motor (winding machine), and the car is moved in the opposite direction to the counterweight through the rope by the rotation of the electric motor. It moves up and down like a vine.

  Here, for example, when the car moves downward in the hoistway, if the load of the car at that time is heavier than the counterweight, no power is required, so the motor functions as a generator, and the regeneration Energy is generated. Further, when the car moves upward, if the load on the car at that time is lighter than the counterweight, no power is required, so regenerative energy is generated.

  Driving the car without requiring power in this way is called “regenerative operation”, and the direction in which the car moves at that time is called “regenerative direction”. On the other hand, an operation that requires power is called “powering operation”, and the direction in which the car moves at that time is called “powering direction”.

  By the way, with the recent demand for power saving, the power generated during the regenerative operation, that is, regenerative energy, is stored in a power storage device such as a large-capacity capacitor, for example, and the regenerative power stored in the power storage device during the next powering operation is stored. A hybrid drive type elevator that uses energy to drive a car is considered (for example, see Patent Document 1).

  In such a hybrid drive type elevator, it is important to effectively use the power storage device in order to realize power saving of the commercial power supply and also to extend the life of the power storage device.

  As the power storage device, for example, a secondary battery such as a nickel metal hydride battery, a lithium ion battery or a lithium polymer battery, or a large capacity capacitor such as an electric double layer capacitor is used. Usually, in order to obtain a desired voltage and electric energy, a plurality of power storage devices are connected in series or in parallel. Here, the basic unit of the power storage device is expressed as a single cell on the assumption that a secondary battery is used. The power storage device is assumed to have n single cells connected in series. Since the charge / discharge voltage to the power storage device is managed for both ends connected in series, ideally, uniform power is stored in each cell and discharged uniformly.

  However, in actuality, there is a difference in internal resistance between the cells of the power storage device and the ambient temperature, so charging / discharging is not performed uniformly. And temperature variations will occur.

In a power storage device configured using a large number of cells, if voltage variations or temperature variations occur in each cell, the charge / discharge efficiency is affected. When a cell with an extremely low voltage appears, the power storage device as a whole may enter a reverse charge state in a state where it is discharged, causing a significant decrease in output and shortening of the life. For this reason, once the voltage variation or temperature variation between cells exceeds a certain value, charging / discharging by powering operation or regenerative operation is stopped once, and the operation to adjust the variation between cells while making the capacity of the power storage device uniform. I was going.
Japanese Patent Laid-Open No. 10-236743

  As described above, in a hybrid drive type elevator including a power storage device including a plurality of secondary batteries, various controls are performed in order to use the power storage device efficiently. However, control that maximizes its performance in cooperation with the operation operation of the elevator is not considered, and it is usually used within the range of performance set in advance by the manufacturer as standard. .

  The present invention has been made in view of the above points, and provides a control device for a hybrid drive type elevator that can effectively use a power storage device under an elevator operation environment to realize power saving of a commercial power supply. Objective.

  The hybrid drive elevator control device according to the present invention stores power generated in the power supply line during regenerative operation of the elevator car and power storage means for supplying the stored power to the power supply line during powering operation, A power storage control means for controlling charging / discharging of the power storage means, an operation detection means for detecting the operation state of the elevator, a power storage state detection means for detecting the state of the power storage means, and the power storage according to the operation state of the elevator Based on the information indicating the operation state of the elevator obtained from the operation detection means and the information indicating the state of the electricity storage means obtained from the electricity storage state detection means in order to maximize the performance of the means, every predetermined time Control parameters related to charge / discharge control of the power storage means by the power storage control means are dynamically changed by a predetermined optimization calculation process. Constituted by and a optimization control means.

  According to such a configuration, based on the information indicating the operation state of the elevator and the information indicating the state of the power storage unit, the control parameter related to the charge / discharge control of the power storage unit is operated by a predetermined optimization calculation process at predetermined time intervals. Will be changed. As a result, it is possible to achieve power saving of the commercial power source by effectively using the power storage means under the elevator operating environment.

  Further, in the above configuration, the optimization means sequentially sets at least parameter values of a charge current limiter, a discharge current limiter, a discharge start voltage, and a charge start voltage of the power storage means for the operation state of the elevator within a predetermined time. It is changed to obtain a combination that maximizes the discharge power from the power storage means during power running operation and maximizes the power storage to the power storage means during regenerative operation.

  According to such a configuration, when each parameter value of the charge current limiter, the discharge current limiter, the discharge start voltage, and the charge start voltage is set as a control target, these parameter values with respect to the operation state of the elevator within a predetermined time. Are sequentially changed to obtain a combination that maximizes the discharge power during the power running operation and the stored power during the regenerative operation. As a result, it is possible to effectively store power in the power storage means during regenerative operation, and to perform power assist by effectively supplying power from the power storage means during power running operation.

  Further, in the above configuration, when the power storage unit is configured by a plurality of secondary batteries, the optimization unit further performs a combination that minimizes voltage variation and temperature variation of each secondary battery. It is characterized by seeking.

  According to such a configuration, in addition to the combination in which the discharge power from the power storage unit is maximized during the power running operation and the power storage power to the power storage unit is maximized in the regenerative operation, the voltage variation and the temperature variation are further increased. A combination that minimizes each is required. As a result, when the power storage means is composed of a plurality of secondary batteries, it is possible to suppress the voltage variation and temperature variation of these secondary batteries and perform efficient charge / discharge control.

  In the above configuration, a genetic algorithm is used for the optimization calculation processing by the optimization means.

  According to such a configuration, it is possible to perform an effective optimization operation in real time using a genetic algorithm.

  According to the present invention, in a hybrid drive type elevator provided with a power storage device, control parameters related to charge / discharge control of the power storage device every predetermined time based on information indicating the operation state of the elevator and information indicating the state of the power storage device Is configured to be dynamically changed by a predetermined optimization calculation process, it is possible to effectively use the power storage device under the elevator operation environment to realize power saving of the commercial power source.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a diagram showing a configuration of a control device for a hybrid drive elevator according to an embodiment of the present invention.

  The elevator 10 is suspended from both ends of an electric motor 11 that rotates by receiving predetermined driving electric power, a sheave 12 that rotates by being attached to a rotating shaft of the electric motor 11, and a rope 13 that is wound around the sheave 12. And a counterweight (balance weight) 15 and the like.

  Further, as a driving system for the car 14, a commercial power source 16, a rectifier 17 that converts the AC voltage of the commercial power source 16 into a DC voltage, a smoothing capacitor 18 that smoothes ripples of the DC voltage, and the DC voltage can be varied. The inverter 19 which converts into the alternating voltage of voltage variable frequency, the inverter electric current detection apparatus 20 which detects the electric current of the electric motor 11 supplied by this inverter 19, etc. are provided.

  The commercial power supply 16 is a three-phase power supply. The AC voltage from the three-phase power source is full-wave rectified by the rectifier 17 and the ripple is absorbed by the smoothing capacitor 18 and smoothed to DC. The smoothed direct current is supplied to the inverter 19, converted into an alternating voltage having a predetermined frequency, and supplied to the electric motor 11 as drive power.

  With such power supply, the electric motor 11 is rotationally driven, and the sheave 12 is rotated accordingly, and the car 14 and the counterweight 15 are lifted and lowered in the hoistway through the rope 13 wound around the electric motor 11. Operate.

  The elevator 10 includes an operation control device 21 for controlling the operation speed of the car 14 and the like.

  FIG. 2 shows the configuration of the operation control device 21. The operation control device 21 includes a speed command unit 22, a speed detection unit 23, a speed control unit 24, a load detection switch unit 25, a load signal calculation unit 26, a torque command determination unit 27, and an inverter current control unit. 28 or the like.

  The speed command unit 22 receives an operation command for the electric motor 11 from an elevator control panel (not shown) and outputs a speed command value. The speed detector 23 detects the current speed of the electric motor 11. The speed control unit 24 obtains a deviation between the speed command value and the speed detection value, and outputs a torque command that eliminates the deviation.

  The load detection switch unit 25 is a switch for detecting the load of the car 14, and includes, for example, a plurality of switches that are selectively turned on according to the load value. The load signal calculation unit 26 calculates a torque compensation value based on the load signal output from the load detection switch unit 25.

  Specifically, it is assumed that the load detection switch unit 25 includes three switches a, b, and c. Switch a is turned on when the load value of the car 14 is heavier than a predetermined load weight (weight that balances the counterweight 15), and switch b is turned on when the load value of the car 14 is the predetermined load weight. The switch c is turned on when the load value of the car 14 is lighter than the predetermined load weight. As shown in FIG. 3, the load signal calculation unit 26 outputs torque compensation values such as “−10”, “0”, and “+10” in response to the ON signals of the switches a, b, and c, respectively. .

  The torque command determination unit 27 has a final torque command value obtained by adding the torque command value output from the speed control unit 24 and the torque compensation value output from the load signal calculation unit 26 within an allowable range. Determine whether or not. As a result, if the torque command value is outside the allowable range, a limiter is applied so as to be within the allowable range.

  Based on the current value detected by the inverter current detection device 20 and the torque command value output from the torque command determination unit 27, the inverter current control unit 28 controls the current flowing through the motor 11 in accordance with the torque command value. .

  Returning to FIG. 1, the elevator 10 includes a sequence control device 29 in addition to the above configuration, and further includes a power storage device 30, a charge / discharge circuit 31, and a power storage control device 32 as a hybrid drive system.

  The sequence control device 29 monitors the operation state of the elevator, such as the number of times the elevator (car 14) is activated and the load state during a predetermined period.

  The power storage device 30 is a power supply means in the hybrid drive type elevator, and includes, for example, a secondary battery such as a nickel metal hydride battery, a lithium ion battery, or a lithium polymer battery, a large capacity capacitor such as an electric double layer capacitor, and the like. The regenerative energy (electric power) sometimes generated in the power supply line is stored, and the stored regenerative energy (electric power) is discharged to the power supply line during the next powering operation to save power.

  The charge / discharge circuit 31 is a circuit for switching charge / discharge of the power storage device 30. The charging / discharging circuit 31 is connected to a charging switching element 33 and a discharging switching element 34 which are connected in parallel between DC buses which are power supply lines to the inverter 19, and a common connection portion between these switching elements 33 and 34. And a DC reactor 35 having a function of smoothing DC power.

  The power storage control device 32 monitors the voltage between the DC buses, that is, the voltage of the smoothing capacitor 18, determines whether the operation state of the car 14 is a regenerative operation or a power running operation based on the voltage value, and according to the operation state Thus, the charge / discharge circuit 31 is controlled to charge / discharge the power storage device 30.

  Specifically, the power storage control device 32 drives the voltage detector 41 that detects the voltage between the DC buses (the voltage of the smoothing capacitor 18) and the charge / discharge circuit 31 to control charging / discharging of the power storage device 30. Discharge control unit 42, voltage detection unit 43 that detects the voltage of power storage device 30, voltage change monitoring unit 44 that monitors the voltage change of power storage device 30 detected by voltage detection unit 43, and voltage that issues a voltage command A command unit 45 and a current detection unit 46 that detects a current flowing into the power storage device 30 are included.

  Reference numeral 47 denotes a temperature detector that detects the temperature of the power storage device 30 and is installed in the power storage device 30.

  The three-phase AC voltage supplied from the commercial power supply 16 is converted into a DC voltage by the rectifier 17, and then converted into a desired AC voltage by the inverter 19 and supplied to the electric motor 11. At this time, when the car 14 is in a regenerative operation, the regenerative energy is returned from the inverter 19 to the input terminal side, so that the DC bus voltage increases.

  In a normal elevator, when the DC bus voltage becomes equal to or higher than a certain value, the switching element 51 provided on the input terminal side of the inverter 19 is controlled and the regenerative resistor 52 heats the energy. On the other hand, the hybrid drive elevator includes a power storage device 30 in order to effectively use the regenerative energy.

  Here, the operation of charging and discharging the regenerative energy in the hybrid drive elevator including the power storage device 30 will be briefly described.

(A) Regenerative energy charging operation As described above, during the regenerative operation of the car 14, the regenerative energy is returned from the inverter 19 to the input terminal side, so that the regenerative energy is accumulated in the smoothing capacitor 18 and the power to the inverter 19 is restored. The voltage between the DC buses that are supply lines gradually increases. The voltage increase at this time is detected by the voltage detection unit 41 in the power storage control device 32.

  Here, in the power storage control device 32, when the voltage between the DC buses becomes equal to or higher than a preset reference value, the voltage command unit 45 reduces the voltage until the voltage is suitable for charging the power storage device 30, and then charges the battery. The charging switching element 33 in the discharge circuit 31 is turned on to charge the power storage device 30.

  The voltage change of the power storage device 30 at this time is monitored by the voltage change monitoring unit 44 through the voltage detection unit 43 and given to the voltage command unit 45. At this time, the current flowing into the power storage device 30 is detected by the current detection unit 46, and the charge current is controlled by the charge / discharge control unit 42. As a result, regenerative energy can be stored in the power storage device 30.

(B) Regenerative energy discharging operation During powering operation of the car 14, since the DC smoothed by the smoothing capacitor 18 is supplied to the inverter 19, the voltage between the DC buses, which is the power supply line to the inverter 19, is stopped. Than descent. The voltage drop at this time is detected by the voltage detection unit 41 in the power storage control device 32.

  In the power storage control device 32, when the DC bus voltage falls below a preset reference value, the voltage of the power storage device 30 is boosted to the target value set by the voltage command unit 45 and matched to the DC bus voltage. Thus, the discharge switching element 34 in the charge / discharge circuit 31 is turned on to discharge the regenerative energy accumulated in the power storage device 30 to the power supply line. At this time, the current flowing out from the power storage device 30 is detected by the current detection unit 46, and the discharge current is controlled by the charge / discharge control unit 42.

  By the way, since the capacity | capacitance of the electrical storage apparatus 30 is finite, the control which charges / discharges efficiently with respect to the driving | operation of the elevator 10, and does not impair the lifetime of the electrical storage apparatus 30 is calculated | required. Therefore, in the present embodiment, an optimization control device 60 that can dynamically change the charge / discharge control of the power storage device 30 in accordance with the operating state of the elevator 10 is provided.

  FIG. 4 is a diagram showing the relationship between the input parameters and the output parameters of the optimization control device 60.

  The optimization control device 60 inputs information indicating the operation state of the elevator 10 and information indicating the state of the power storage device 30, and performs optimization calculation processing using, for example, a genetic algorithm based on the input information. The control parameters related to the charge / discharge control of the power storage device 30 are optimized.

  The information indicating the operation state of the elevator 10 includes at least start frequency information IN1 indicating the number of times the car 14 is started, load information IN2 indicating the loaded load of the car 14, torque information IN3 of the electric motor 11, and a power supply line. Voltage information IN4 between a certain DC bus is included, and these are given to the optimization controller 60 as input parameters representing the elevator operation state.

  The activation frequency information IN1 and the load information IN2 are output from the sequence control device 29, and the torque information IN3 is output from the operation control device 21. The DC bus voltage information IN4 is output from the voltage detector 41. Among these, the load information IN <b> 2 may be a current value of the electric motor 11 measured by the inverter current detection device 20 or a signal from the load detection switch unit 25 installed on the floor surface of the car 14.

  Further, as information indicating the state of the power storage device 30, at least voltage information IN5 indicating voltage variation (voltage variation), temperature information IN6 indicating temperature variation (temperature variation), current variation (charge / discharge current value). Current information IN7 indicating the storage state, and these are given to the optimization control device 60 as parameters indicating the storage state.

  The voltage information IN5 is output from the voltage change monitoring unit 44, the temperature information IN6 is output from the temperature detector 47, and the current information IN7 is output from the current detection unit 46.

  Further, calendar information IN8 such as date, day of the week, time zone, etc., and fixed parameters IN9 such as voltage upper limit value and lower limit value, temperature upper limit value and lower limit value of power storage device 30 set in advance according to the performance of power storage device 30 and the like. Is given to the optimization controller 60 from the outside. It is assumed that the power storage device 30 is always used within the range of the upper limit value and lower limit value of the voltage and temperature set by the fixed parameter IN9 for both voltage and temperature.

  Here, in the present embodiment, it is assumed that the charge current limiter, the discharge current limiter, the discharge start voltage, and the charge start voltage of the power storage device 30 are controlled as control targets (control parameters related to charge / discharge control).

  In the figure, OUT1 and OUT2 are charge current and discharge current limiters, and OUT3 and OUT4 are signals for setting the charge start voltage value and the discharge start voltage value, which are optimized by the optimization controller 60 and charged / discharged. It is output to the control unit 42 and the voltage command unit 45. Note that OUT5 is a refresh operation command, and OUT6 is a life estimation operation command, which are output to the operation control device 21, respectively.

  FIG. 5 is a flowchart showing the flow of optimization calculation processing executed by the optimization control device 60.

  First, the frequency of starting the car 14 within a certain period of time, the voltage between the DC buses fluctuating depending on the operation state (powering operation / regenerative operation) at that time, the fluctuation of the loaded load in the car 14, and the torque fluctuation of the motor 11 Paying attention, the operating state of the elevator 10 is detected (step S11).

  Specifically, the activation frequency information IN1 and the load information IN2 are acquired from the sequence control device 29 to detect the activation frequency of the car 14 and the change in the car load, and the torque information IN3 is obtained from the operation control device 21. The torque fluctuation of the electric motor 11 is detected by obtaining. Further, by acquiring the DC bus voltage information IN4 from the voltage detector 41 of the power storage control device 32, the fluctuation of the DC bus voltage is detected.

  Here, each of the charge limiter, the discharge limiter, the discharge start voltage, and the charge start voltage of the power storage device 30 with respect to the operation state of the elevator 10 (starting frequency, DC bus power fluctuation, car load capacity fluctuation, torque fluctuation). The parameter value is set to an arbitrary value, the power storage device 30 is charged / discharged (step S12), and the state of the power storage device 30 within a predetermined time is detected (step S13).

  Specifically, by acquiring the current information IN7 from the current detection unit 46, the values of the charging current and discharging current of the power storage device 30 are detected. Further, when the power storage device 30 is configured by a plurality of secondary batteries, for example, by acquiring the voltage information IN5 from the voltage change monitoring unit 44 and the temperature information IN6 from the temperature detector 47, each secondary battery Voltage variation and temperature variation are detected.

  Next, the parameter values of the charge limiter, the discharge limiter, the discharge start voltage, and the charge start voltage are sequentially changed with respect to the elevator operation state within the predetermined time, and the discharge power from the power storage device 30 is maximized during the power running operation. In addition, a combination that maximizes the power stored in the power storage device 30 during the regenerative operation is obtained (step S14). Further, as described above, when the power storage device 30 is configured by a plurality of secondary batteries, a combination that minimizes voltage variation and temperature variation is obtained.

  In this case, the above combination is obtained within the range of the voltage upper limit value, lower limit value, temperature upper limit value, and lower limit value of power storage device 30 indicated by fixed parameter IN9. At that time, weighting based on the date, day of the week, time zone, or the like may be added based on the calendar information IN8.

  Next, the power storage device 30 is operated during powering operation in the same manner as described above under the conditions that the start frequency, DC bus voltage, car load capacity, and torque change within a certain period of time (Yes in step S15). A charge limiter, a discharge limiter for the power storage device 30, so that the power storage power to the power storage device 30 is maximized during regenerative operation and the voltage variation and the temperature variation are minimized. Each parameter value of the discharge start voltage and the charge start voltage is tuned (steps S11 to S14).

  By repeating such operations, the control parameters related to the charge / discharge control of the power storage device 30 are optimal for each operation section in which the values of the charge limiter, the discharge limiter, the discharge start voltage, and the charge start voltage are divided in predetermined time units. Can be By performing charge / discharge control of the power storage device 30 in accordance with the optimized control parameters in this way, it is possible to effectively use the power storage device 30 under the elevator operating environment and achieve power saving of the commercial power supply 16.

  In addition, a genetic algorithm (GA) can be used for the above optimization calculation processing. A genetic algorithm is known as one of the methods for finding the optimal solution for a problem. It expresses the solution in the form of “gene” and repeats natural selection to derive the optimal solution. is there. By using such a genetic algorithm and obtaining an optimal solution while applying genetic processing to each parameter value, it is possible to perform an effective optimization operation in real time.

  In addition to this genetic algorithm, any calculation method may be used as long as it is a calculation method for optimizing parameter values.

  In addition, as the information indicating the operation state of the elevator 10, each of the information of the start frequency, the DC bus power fluctuation, the car load capacity fluctuation, and the torque fluctuation has been described as an example, but other information may be included. Similarly, the information indicating the state of the power storage device 30 may include information other than voltage variation, temperature variation, charging current value, and discharging current value.

Furthermore, the parameter value to be controlled may include information other than the charging current limiter, the storage battery discharge current limiter, the discharge start voltage, and the charge start voltage of the power storage device 30.
In short, the present invention is not limited to the above-described embodiments as they are, and can be embodied by modifying the components without departing from the scope of the invention in the implementation stage. In addition, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, constituent elements over different embodiments may be appropriately combined.

The figure which shows the whole structure of the control apparatus of the hybrid drive type elevator which concerns on one Embodiment of this invention. The block diagram which shows the structure of the operation control apparatus with which the hybrid drive type elevator in the same embodiment was equipped. The figure which shows the relationship between the switch of a load signal calculating device with which the hybrid drive type elevator in the same embodiment was equipped, and a torque compensation value. The figure which shows the relationship between the input parameter and output parameter of the optimization control apparatus with which the hybrid drive type elevator in the same embodiment was equipped. The flowchart which shows the flow of the optimization calculation process performed by the optimization control apparatus with which the hybrid drive type elevator in the same embodiment was equipped.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 11 ... Electric motor, 12 ... Sheave, 13 ... Rope, 14 ... Ride car, 15 ... Counterweight, 16 ... Commercial power supply, 17 ... Rectifier, 18 ... Smoothing capacitor, 19 ... Inverter, 20 ... Inverter current detection device, 21 ... Operation Control device, 22 ... Speed command section, 23 ... Speed detection section, 24 ... Speed control section, 25 ... Load detection switch section, 26 ... Load signal calculation section, 27 ... Torque command determination section, 28 ... Inverter current control section, 30 DESCRIPTION OF SYMBOLS ... Power storage device, 31 ... Charging / discharging circuit, 32 ... Power storage control device, 33 ... Switching element for charging, 34 ... Switching element for discharging, 35 ... DC reactor, 41 ... Voltage detection part, 42 ... Charging / discharging control part, 43 ... Voltage detection unit 44 ... Voltage change monitoring unit 45 ... Voltage command unit 46 ... Current detection unit 51 ... Switching element 52 ... Regenerative resistor 60 ... Optimization controller IN1 ... Start-up frequency information, IN2 ... Load information, IN3 ... Torque information, IN4 ... DC bus voltage information, IN5 ... Voltage information, IN6 ... Temperature information, IN7 ... Current information, IN8 ... Calendar information, IN9 ... Fixed parameters, OUT1 ... charging current limiter, OUT2 ... discharge current limiter, OUT3 ... charge start voltage value, OUT4 ... refresh operation command, OUT6 ... life estimation operation command.

Claims (4)

Power storage means for storing power generated in the power supply line during regenerative operation of the elevator car, and supplying the stored power to the power supply line during powering operation;
Power storage control means for controlling charging / discharging of the power storage means;
Driving detection means for detecting the driving state of the elevator;
A power storage state detecting means for detecting the state of the power storage means;
In order to maximize the performance of the power storage means according to the operation state of the elevator, information indicating the operation state of the elevator obtained from the operation detection means and the state of the power storage means obtained from the power storage state detection means And an optimization control unit that dynamically changes a control parameter related to charge / discharge control of the power storage unit by the power storage control unit by a predetermined optimization calculation process based on the information indicated. A control device for a hybrid drive elevator.   The optimization means sequentially changes at least the parameter values of the charging current limiter, the discharge current limiter, the discharge start voltage, and the charge start voltage of the power storage means with respect to the operation state of the elevator within a predetermined time, thereby performing a power running operation. 2. The control apparatus for a hybrid drive type elevator according to claim 1, characterized in that a combination is sometimes obtained in which the discharge power from the power storage means is maximized and the power storage power to the power storage means is maximized during regenerative operation. In the case where the power storage means is composed of a plurality of secondary batteries,
3. The control apparatus for a hybrid drive type elevator according to claim 2, wherein the optimization means further obtains a combination that minimizes voltage variation and temperature variation of each of the secondary batteries.   4. The hybrid drive elevator control device according to claim 1, wherein a genetic algorithm is used for the optimization calculation processing by the optimization means.

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