KR950010309A - Low noise operation method of inverter device - Google Patents

Low noise operation method of inverter device Download PDF

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Publication number
KR950010309A
KR950010309A KR1019930018197A KR930018197A KR950010309A KR 950010309 A KR950010309 A KR 950010309A KR 1019930018197 A KR1019930018197 A KR 1019930018197A KR 930018197 A KR930018197 A KR 930018197A KR 950010309 A KR950010309 A KR 950010309A
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KR
South Korea
Prior art keywords
frequency
operating
noise
output
inverter device
Prior art date
Application number
KR1019930018197A
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Korean (ko)
Inventor
정승규
Original Assignee
이헌조
주식회사 금성사
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Publication date
Application filed by 이헌조, 주식회사 금성사 filed Critical 이헌조
Priority to KR1019930018197A priority Critical patent/KR950010309A/en
Publication of KR950010309A publication Critical patent/KR950010309A/en

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  • Control Of Ac Motors In General (AREA)
  • Inverter Devices (AREA)

Abstract

본 발명은 인버터 장치가 출력하는 구동신호의 출력 주파수 변동에 따른 소음의 증감현상 및 음색의 변화를 감소시키고, 전동기의 동작특성을 향상시킬 수 있도록 하는 것으로서 종래에는 인버티 장치로 전동기를 구동시킬 경우에 구동 주파수에 따라 캐리어 주파수가 서로 상이하고, 이 캐리어 주파수에 따라 소음 주파수의 대역이 결정되므로 발생되는 소음의 음색이 변화되었으며, 또한 인버터 장치를 구성하고 있는 스위칭 소자의 스위칭 주파수의 한계 및 마이콤의 용량 한계에 의하여 최대 캐리어 주파수의 한계가 결정되므로 캐리어 주파수가 작은 영역에서 구동되는 운전 주파수가 발생하게 되어 소음 진동이 크게 발생하였다.The present invention is to reduce the increase and decrease of the noise and the change in the tone according to the output frequency change of the drive signal output from the inverter device, and to improve the operating characteristics of the motor. The carrier frequencies are different from each other according to the driving frequency, and the tone of the noise is changed because the band of the noise frequency is determined according to the carrier frequency, and the limit of the switching frequency of the switching element constituting the inverter device and the Since the limit of the maximum carrier frequency is determined by the capacity limit, an operating frequency driven in a region having a small carrier frequency is generated, resulting in a large noise vibration.

본 발명은 실내기 지령 주파수와 흡력 주파수의 크기를 비교하고, 비교결과에 따라 출력주파수를 증감시켜 각각의 운전 주파수에서 최적의 캐리어 주파수로 운전하므로 소음의 발생을 줄일 수 있고, 거의 일정한 캐리어 주파수로 운전하여 음색이 일정함은 물론 전동기의 특성을 향상시켜 운전할 수 있다.The present invention compares the magnitude of the indoor unit command frequency and the absorption frequency, and increases or decreases the output frequency according to the comparison result, thereby operating at the optimum carrier frequency at each operating frequency, thereby reducing the occurrence of noise and operating at a substantially constant carrier frequency. As a result, the sound quality is not only constant, but also the characteristics of the motor can be improved.

Description

인버터 장치의 저소음 운전방법Low noise operation method of inverter device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 일반적으로 인버터 장치가 출력하는 구동신호의 출력주파수 및 캐리어 주파수의 관계를 보인 그래프,1 is a graph showing a relationship between an output frequency and a carrier frequency of a drive signal generally output from an inverter device;

제2도는 설정온도 및 검출온도의 차이에 따른 인버터 장치의 구동신호의 출력주파수를 예로 들어 보인 도표,2 is a diagram showing an example of an output frequency of a drive signal of an inverter device according to a difference between a set temperature and a detected temperature;

제3도는 본 발명의 저소음 운전방법이 적용되는 인버터 장치의 구성을 보인 회로도.3 is a circuit diagram showing the configuration of an inverter device to which the low noise operation method of the present invention is applied.

Claims (2)

입력되는 실내기 지령주파수 및 출력주파수의 크기를 비교하는 제1과정과, 상기 제1과정에서 출력주파수가 실내기 지령주파수보다 클 경우에 출력 주파수에서 주파수 감소분을 감산하고 출력주파수가 실내기 지령 주파수보다 작을 경우에 출력 주파수에 주파수 증가분을 가산하여 PWM파로 출력하는 제2과정과, 상기 제1과정에서 실내기 지령주파수 및 출력주파수가 동일한 경우에 출력자주파수와 동일한 운전주파수를 선택하는 제3과정과 상기 제3과정에서 선택한 운전주파수의 저소음 캐리어 주파수의 패턴을 갖는 PWM파를 출력하는 제4과정과,상기 제2 및 제4과정에서 PWM파의 출력후 실정시간이 경과될 경우에 상기 제1과정을 반복하는 제5과정으로 제어됨을 특징으로 하는 인버터 장치의 저소음 운전 방법.A first step of comparing the magnitudes of the input indoor unit command frequency and the output frequency; and subtracting a frequency decrease from the output frequency when the output frequency is greater than the indoor unit command frequency in the first step, and output frequency is smaller than the indoor unit command frequency. A second process of adding a frequency increase to an output frequency and outputting it as a PWM wave; and a third process of selecting an operating frequency equal to an output frequency when the indoor unit command frequency and output frequency are the same in the first process; A fourth process of outputting a PWM wave having a pattern of a low noise carrier frequency of an operation frequency selected in the process, and repeating the first process when an actual time elapses after outputting the PWM wave in the second and fourth processes Low noise operation method of the inverter device characterized in that the control in the fifth process. 제1항에 있어서, 제2과정은, 출력 주파수에서 주파수 감소분을 감산할 경우에 가동시 최저설정 주파수보다 작으면, 기동시 최저설정 주파수를 출력주파수로 설정하는 것을 특징으로 하는 인버터 장치의 저소음 운전방법.The low noise operation of the inverter device according to claim 1, wherein in the second process, when the frequency decrease is subtracted from the output frequency, if the frequency is smaller than the minimum set frequency at the start, the minimum set frequency at the start is set as the output frequency. Way. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930018197A 1993-09-10 1993-09-10 Low noise operation method of inverter device KR950010309A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930018197A KR950010309A (en) 1993-09-10 1993-09-10 Low noise operation method of inverter device

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Application Number Priority Date Filing Date Title
KR1019930018197A KR950010309A (en) 1993-09-10 1993-09-10 Low noise operation method of inverter device

Publications (1)

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KR950010309A true KR950010309A (en) 1995-04-28

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100771912B1 (en) * 2005-06-30 2007-11-01 엘에스산전 주식회사 Noise reducing method for inverter for elevator door
KR20230047746A (en) 2021-10-01 2023-04-10 주식회사 필풋스포츠 Pillar-type goalposts for entertainment and their uses

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100771912B1 (en) * 2005-06-30 2007-11-01 엘에스산전 주식회사 Noise reducing method for inverter for elevator door
KR20230047746A (en) 2021-10-01 2023-04-10 주식회사 필풋스포츠 Pillar-type goalposts for entertainment and their uses

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