CN-117602466-B - Elevator energy-saving control method and system

CN117602466BCN 117602466 BCN117602466 BCN 117602466BCN-117602466-B

Abstract

The application discloses an energy-saving control method and system for an elevator, relates to the technical field of elevator control, and aims to solve the problem that the energy consumption of the elevator is still high in practical application in the prior art. The method is used for a carrier frequency adjusting device and comprises the following steps of obtaining information of an elevator running state, obtaining an influence factor set based on the elevator running state information, carrying out trend analysis based on the influence factor set to obtain an influence coefficient value corresponding to each influence factor, inputting the influence coefficient value corresponding to each influence factor into a trained target multiple linear regression model to enable the target multiple linear regression model to output a target carrier frequency value, and adjusting the current carrier frequency value of the elevator to the target carrier frequency value to reduce energy consumption during elevator running. Based on the method of the application, the energy consumption of the elevator in different running states can be reduced, and the running stability of the elevator is ensured.

Inventors

LAN XIUQING
LIN SUIXIAN
Zhou Deken
NIE YIBO
LIN MINYI

Assignees

广州广日电梯工业有限公司

Dates

Publication Date: 20260505
Application Date: 20231123

Claims (8)

1. The elevator energy-saving control method is characterized by being used for a carrier frequency adjusting device and comprising the following steps of: Acquiring information of an elevator running state, wherein the elevator running state comprises an idle time state and a busy time state; acquiring an influence factor set based on the elevator running state information, wherein the influence factor set comprises an idle time influence factor set and a busy time influence factor set, the idle time influence factor set comprises an idle time host real-time temperature value and an idle time host real-time noise value, and the busy time influence factor set comprises a busy time host real-time temperature value, a busy time elevator frequency conversion overload amount, a busy time elevator real-time vibration value and a busy time host real-time noise value; If the running state of the elevator is in an idle state, if the real-time temperature value of the idle host is lower than a preset idle maximum temperature value, the original carrier frequency value is subjected to up-regulation processing, and a first idle temperature influence coefficient value is obtained; If the running state of the elevator is a busy hour state, if the real-time temperature value of the busy hour host is lower than the preset maximum busy hour temperature value, the current carrier frequency value is subjected to up-regulation processing, and a first busy hour temperature influence coefficient value is obtained; if the real-time temperature value of the busy hour host is higher than the preset maximum busy hour temperature value, the current carrier frequency value is subjected to down-regulation treatment, and a second busy hour temperature influence coefficient value is obtained; Inputting the influence coefficient value corresponding to each influence factor into a trained target multiple linear regression model so that the target multiple linear regression model outputs a target carrier frequency value, wherein the target carrier frequency value is the carrier frequency value with the lowest energy consumption value when the elevator is in the current running state; and adjusting the current carrier frequency value of the elevator to the target carrier frequency value so as to reduce the energy consumption during the operation of the elevator.
2. The elevator energy saving control method according to claim 1, characterized in that the step of acquiring the influence factor set based on the elevator operation state information comprises: If the running state of the elevator is idle state, the original carrier frequency is adjusted down to a preset carrier frequency value, and in the process of adjusting the original carrier frequency down to the preset carrier frequency value, the idle host real-time temperature value and the idle host real-time noise value are obtained; If the running state of the elevator is a busy hour state, acquiring a real-time temperature value of a busy hour host, a frequency conversion overload amount of the busy hour elevator, a real-time vibration value of the busy hour elevator and a real-time noise value of the busy hour host.
3. The elevator energy saving control method according to claim 1, wherein the step of obtaining the idle noise influence coefficient value based on the idle host real-time noise value and a preset idle maximum noise value includes: If the idle host real-time noise value is larger than the preset idle maximum noise value, the current carrier frequency value is subjected to up-regulation processing, and a first idle noise influence coefficient value is obtained; And if the idle host real-time noise value is smaller than the preset idle maximum noise value, performing down-regulation processing on the current carrier frequency value, and obtaining a second idle noise influence coefficient value.
4. The elevator energy saving control method according to claim 1, wherein the step of obtaining the load influence coefficient value based on the elevator variable frequency overload amount and the preset maximum overload amount comprises: Dividing the difference value of the elevator frequency conversion overload amount by the preset maximum overload amount to obtain a phase difference proportional value; if the phase difference proportion value reaches a first preset proportion value, the original carrier frequency value is subjected to down-regulation treatment; And in the downregulating process, if the phase difference proportion value reaches a second preset proportion value, the current carrier frequency value is regulated back to the original carrier frequency, and a second load influence coefficient value is obtained.
5. The elevator energy saving control method of claim 1, further comprising, prior to the step of obtaining a busy hour vibration-noise impact coefficient value based on the busy hour host real time noise value and a busy hour elevator real time vibration value: Before the elevator is started, the original carrier frequency value is subjected to down-regulation processing, and in the down-regulation processing process, the noise value of the host and the vibration value of the elevator are detected in real time, so that the real-time noise value of the host and the real-time vibration value of the elevator in busy hours are obtained.
6. The elevator energy saving control method of claim 5, wherein the step of obtaining a busy hour vibration-noise impact coefficient value based on the busy hour host real time noise value and the busy hour elevator real time vibration value comprises: if the real-time noise value of the busy hour host exceeds the preset busy hour noise value, the current carrier frequency value is subjected to up-regulation processing to obtain a starting regulation frequency value; and when the elevator enters a busy hour state, the starting adjustment frequency value is subjected to up-regulation processing until the real-time vibration value of the elevator in the Z direction is lower than a preset busy hour vibration value, and a busy hour vibration-noise influence coefficient value is obtained.
7. The elevator energy-saving control method according to claim 1, wherein the target multiple linear regression model is obtained through training based on a historical operation data set of each influence factor, wherein the historical operation data set comprises a historical idle time influence factor set and a historical busy time influence factor set, wherein the historical idle time influence factor set comprises a historical idle time host temperature value and a historical idle time host noise value, and the historical busy time influence factor set comprises a historical busy time host temperature value, a historical busy time elevator frequency conversion overload amount, a historical busy time elevator vibration value and a historical busy time host noise value.
8. An elevator energy saving control system, characterized by comprising: The three-axis sensor is used for detecting the vibration condition of the elevator in real time and sending the detection result to the carrier frequency adjusting device; The running state detection device is used for detecting the current running state of the elevator and sending the detected running state information to the carrier frequency adjustment device, wherein the running state comprises a busy hour state and an idle hour state; the temperature detection device is used for detecting the temperature of the host in real time and sending the detection result to the carrier frequency adjustment device; The noise detection device is used for detecting the noise of the host in real time and sending the detection result to the carrier frequency adjustment device; The carrier frequency adjusting device is used for acquiring information of an elevator operation state, wherein the elevator operation state comprises an idle state and a busy state, acquiring an influence factor set based on the elevator operation state information, wherein the influence factor set comprises an idle influence factor set and a busy influence factor set, the idle influence factor set comprises an idle host real-time temperature value and an idle host real-time noise value, the busy influence factor set comprises an idle host real-time temperature value, a busy elevator frequency conversion overload amount, an busy elevator real-time vibration value and a busy host real-time noise value, if the elevator operation state is the idle state, if the idle host real-time temperature value is lower than a preset idle maximum temperature value, an original carrier frequency value is subjected to upper adjustment, and a first idle temperature influence coefficient value is obtained, if the idle host real-time temperature value is higher than the preset idle maximum temperature value, the original carrier frequency value is subjected to lower adjustment, and a second idle temperature influence coefficient value is obtained, if the idle host real-time noise value is higher than the preset idle host real-time temperature value, the busy elevator frequency value is subjected to lower adjustment, and the busy temperature value is obtained, if the idle host real-time noise value is higher than the preset busy temperature value, and the busy temperature value is higher than the preset, and the first idle temperature influence coefficient value is obtained, and if the idle temperature value is higher than the preset idle temperature value, the method comprises the steps of obtaining a busy-time vibration-noise influence coefficient value, inputting the influence coefficient value corresponding to each influence factor into a trained target multiple linear regression model so that the target multiple linear regression model outputs a target carrier frequency value, wherein the target carrier frequency value refers to the carrier frequency value with the lowest energy consumption value when an elevator is in a current running state, and adjusting the current carrier frequency value of the elevator to the target carrier frequency value so as to reduce the energy consumption when the elevator runs.

Description

Elevator energy-saving control method and system Technical Field The application relates to the technical field of elevator control, in particular to an energy-saving control method and system for an elevator. Background In the prior art, most advanced energy-saving elevators mostly adopt a variable-frequency regenerated energy feedback principle, the elevator can convert generated mechanical energy into direct current through a frequency converter and a motor in the operation process and temporarily store the direct current in a capacitor of variable-frequency equipment, the voltage in the capacitor can be gradually increased along with the gradual increase of energy storage, at the moment, the electric energy stored in the capacitor can be recycled through an energy feedback device, and the electric energy can be used as supplementary energy to participate in operation in the use processes of braking and the like of the elevator, so that energy saving is realized. However, in practical application, the energy consumption of the elevator is still high in the prior art. Disclosure of Invention The application provides an energy-saving control method and system for an elevator, and aims to solve the problem that the energy consumption of the elevator is still high in practical application in the prior art. In order to solve the technical problems, the embodiment of the application provides an elevator energy-saving control method which is used for a carrier frequency adjusting device and comprises the following steps: Acquiring information of an elevator running state, wherein the elevator running state comprises an idle time state and a busy time state; The method comprises the steps of acquiring an influence factor set based on elevator running state information, wherein the influence factor set comprises an idle time influence factor set and a busy time influence factor set, wherein the idle time influence factor set comprises an idle time host real-time temperature value and an idle time host real-time noise value, and the busy time influence factor set comprises a busy time host real-time temperature value, a busy time elevator frequency conversion overload amount, a busy time elevator real-time vibration value and a busy time host real-time noise value; Inputting the influence coefficient values corresponding to the influence factors into a trained target multiple linear regression model so that the target multiple linear regression model outputs a target carrier frequency value, wherein the target carrier frequency value refers to the carrier frequency value with the lowest energy consumption value when the elevator is in the current running state; and adjusting the current carrier frequency value of the elevator to the target carrier frequency value so as to reduce the energy consumption during the operation of the elevator. As some optional embodiments of the present application, the step of obtaining the set of influence factors based on the elevator running state information includes: If the running state of the elevator is idle state, the original carrier frequency is adjusted down to a preset carrier frequency value, and in the process of adjusting the original carrier frequency down to the preset carrier frequency value, the idle host real-time temperature value and the idle host real-time noise value are obtained; If the running state of the elevator is a busy hour state, acquiring a real-time temperature value of a busy hour host, a frequency conversion overload amount of the busy hour elevator, a real-time vibration value of the busy hour elevator and a real-time noise value of the busy hour host. As some optional embodiments of the present application, the step of performing trend analysis based on the influence factor set to obtain an influence coefficient value corresponding to each influence factor includes: if the running state of the elevator is idle state, acquiring an idle temperature influence coefficient value based on the idle host real-time temperature value and a preset idle maximum temperature value; If the running state of the elevator is a busy hour state, acquiring a busy hour temperature influence coefficient value based on the busy hour host real-time temperature value and a preset busy hour maximum temperature value, acquiring a busy hour load influence coefficient value based on the busy hour elevator frequency conversion overload amount and the preset busy hour maximum overload amount, and acquiring a busy hour vibration-noise influence coefficient value based on the busy hour host real-time noise value and the busy hour elevator real-time vibration value. The step of obtaining the idle time temperature influence coefficient value based on the idle time host real-time temperature value and a preset idle time maximum temperature value comprises the steps of carrying out up-regulation on the original carrier frequency value and obtaining a first idle time temperature infl