CN106515771B - A kind of compressor control method of rail vehicle fixed frequency air conditioner - Google Patents

A kind of compressor control method of rail vehicle fixed frequency air conditioner Download PDF

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Publication number
CN106515771B
CN106515771B CN201611150225.0A CN201611150225A CN106515771B CN 106515771 B CN106515771 B CN 106515771B CN 201611150225 A CN201611150225 A CN 201611150225A CN 106515771 B CN106515771 B CN 106515771B
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China
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tia
compressor
time
stop
temperature
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CN201611150225.0A
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CN106515771A (en
Inventor
肖峰敏
易柯
李跃中
许钰文
杨天智
王正
吕知梅
丁前庄
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CRRC Zhuzhou Locomotive Co Ltd
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CRRC Zhuzhou Locomotive Co Ltd
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D27/00—Heating, cooling, ventilating, or air-conditioning
    • B61D27/0072—Means for cooling only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data

Abstract

The invention discloses a kind of compressor control methods of rail vehicle fixed frequency air conditioner, using between guest room temperature and target temperature the temperature difference and time signal judge start/stop of compressor condition and start and stop quantity, and the start and stop that compression stage is added are bypassed the immediate leadership change condition, and the Rule of judgment using the simple temperature difference as start/stop of compressor is solved.The present invention increases time timing and Rule of judgment, guest room temperature shock caused by effectively preventing the frequent start-stop of compressor based on objective indoor temperature and set temperature.In air-conditioning system operational process, with the variation of guest room cooling load, the operating status of compressor tends towards stability.Actually it is also the judgement changed to guest room internal loading for the time Rule of judgment of start/stop of compressor in the invention, the limitation of mandatory provision start/stop of compressor quantity is avoided in same temperature range.

Description

A kind of compressor control method of rail vehicle fixed frequency air conditioner
Technical field
The present invention relates to airconditioning control field, especially a kind of compressor control method of rail vehicle fixed frequency air conditioner.
Background technology
City rail or light rail vehicle are generally there are vehicle traffic coverage is short, and switch gate frequency is higher and handling capacity of passengers variation Interior thermic load changes problem greatly caused by big.It is using more compressor of air conditioner control method at present：By in guest room The temperature difference between temperature Tic and target temperature Ti determines start/stop of compressor.By taking two more compressor air-conditionings of application as an example, by It is limited in its number of compressors, air-conditioner set can be divided into ventilation, half cold, full cold mode, main control principle such as Fig. 1.
Rule of judgment of this method using the simple temperature difference as start/stop of compressor, often results in start and stop and the guest room of compressor The inconsistent phenomenon of actual demand, and there are conversion between both of which, to frequently result in difference variation in guest room larger, frequently opens Stop also having larger impact to the service life of compressor.
Invention content
The technical problem to be solved by the present invention is in view of the shortcomings of the prior art, provide a kind of rail vehicle fixed frequency air conditioner Compressor control method.
In order to solve the above technical problems, the technical solution adopted in the present invention is：A kind of pressure of rail vehicle fixed frequency air conditioner Contracting machine control method, includes the following steps：
1) if Tia-Ts≤- 3 DEG C, sequence stops compressor until the wholly off operating of all compressors；If in time T, 2) ＞ -3 DEG C of Tia-Ts, enters step；Wherein Tia is indoor temperature；Ts is set temperature；
If 2) -3 DEG C of ＜ Tia-Ts≤- 1 DEG C, and (Tia-Ts) maintain (- 3 DEG C, -1 DEG C] time be more than T, then in original Stop compressor operating on the basis of compressor operation quantity, on this basis, after time T, if Tia-Ts≤- 3 DEG C, Return to step 1), if -3 DEG C of ＜ Tia-Ts≤- 1 DEG C, repeatedly step 2), if 3) ＞ -1 DEG C of Tia-Ts, enters step；If (Tia-Ts) maintain (- 3 DEG C, -1 DEG C] time be no more than T, and Tia-Ts≤- 3 DEG C, then return to step 1)；(if Tia-Ts) Maintain (- 3 DEG C, -1 DEG C] time be no more than T, and ＞ -1 DEG C of Tia-Ts, then enter step 3)；
If 3) -1 DEG C of Tia-Ts≤1 DEG C ＜, and (Tia-Ts) maintain (- 1 DEG C, 1 DEG C] time be more than T, then keep former Compressor behavior, on this basis, compressor continue to run with, in time T, if Tia-Ts≤- 1 DEG C, return to step 2), if -1 DEG C of Tia-Ts≤1 DEG C ＜, repeatedly step 3), if 4) ＞ -1 DEG C of Tia-Ts, enters step；If (Tia-Ts) is tieed up Hold (- 1 DEG C, 1 DEG C] time be no more than T, and Tia-Ts≤- 1 DEG C, then return to step 2)；If (Tia-Ts) maintains (- 1 DEG C, 1 DEG C] time be no more than T, and 1 DEG C of Tia-Ts ＞, then enter step 4)；
If 4) 1 DEG C of Tia-Ts≤2 DEG C ＜, and (Tia-Ts) maintain (1 DEG C, 2 DEG C] time be more than T, then original compress Increase compressor operating on the basis of machine operating quantity, on this basis, in the time T that compressor continues to run with, if Tia-Ts≤1 DEG C, then return to step 3), if 1 DEG C of Tia-Ts≤2 DEG C ＜, repeatedly step 4), if 2 DEG C of Tia-Ts ＞, enter Step 5)；(if Tia-Ts) maintain (1 DEG C, 2 DEG C] time be no more than T, and Tia-Ts≤1 DEG C, then return to step 3)；If (Tia-Ts) maintain (1 DEG C, 2 DEG C] time be no more than T, and 2 DEG C of Tia-Ts ＞, then enter step 5)；
If 5) 2 DEG C of Tia-Ts ＞, all compressors are sequentially opened until compressor all starts；Compressor all operates Afterwards, in time T, if Tia-Ts≤2 DEG C, return to step 4)；If Tia-Ts
2 DEG C of ＞, then repeatedly step 5).
Compared with prior art, the advantageous effect of present invention is that：The present invention is with objective indoor temperature and set temperature Based on, increase time timing and Rule of judgment, guest room temperature shock caused by effectively preventing the frequent start-stop of compressor. In air-conditioning system operational process, with the variation of guest room cooling load, the operating status of compressor tends towards stability.It is right in the present invention Actually it is also the judgement changed to guest room internal loading in the time Rule of judgment of start/stop of compressor, is kept away in same temperature range The limitation for having exempted from mandatory provision start/stop of compressor quantity prevents frequent starting compressor, and can effectively extend compressor uses the longevity Life.
Description of the drawings
Fig. 1 is existing control method schematic diagram；
Fig. 2 is system block diagram of the embodiment of the present invention；
Fig. 3 is control principle drawing of the embodiment of the present invention.
Specific implementation mode
The present invention increases timing software in air-conditioner controller, and module when increasing temperature sensor thermometer increases compression The timing module that machine is opened and shut down.Air-conditioner controller is according to compressor operating state timing module and the letter of temperature difference timing module Number judge the startup and stopping of compressor.When needing to start compressor, the preferential pressure for starting fault-free and meeting stand-by time Contracting machine；When stopping compressor, the compressor of preferential run down time length.
Compressor start condition：
1) when Tia (indoor temperature)-Ts (set temperature)≤- 3 DEG C, sequentially stopping compressor are until all compressors are whole It shuts down；After compressor shuts down, according to temperature variations in 60S, judgement is re-started；
2) when -3 DEG C of ＜ Tia (indoor temperature)-Ts (set temperature)≤- 1 DEG C, and the time is more than 60S, then in former compressor Stop compressor operating on the basis of operating quantity；If be less than 60S, in 60S according to temperature variations again with Temperature is judged.
3) when -1 DEG C of ＜ Tia (indoor temperature)-Ts (set temperature)≤1 DEG C, and the time is more than 60S, then keeps former compression Machine operating status；If being less than 60S, judged again with temperature according to temperature variations in 60S.
4) when 1 DEG C of ＜ Tia (indoor temperature)-Ts (set temperature)≤2 DEG C, and the time is more than 60S, then in former compressor Increase compressor operating on the basis of operating quantity；If be less than 60S, in 60S according to temperature variations again with Temperature is judged.
5) as 2 DEG C of Tia (indoor temperature)-Ts (set temperature) ＞, all compressors are sequentially opened until compressor is whole Start；Compressor all after operating, according to temperature variations in 60S, re-starts judgement.
In the present embodiment, set temperature is set as 22 DEG C~30 DEG C.

Claims (3)

1. a kind of compressor control method of rail vehicle fixed frequency air conditioner, which is characterized in that include the following steps：
1) if Tia-Ts≤- 3 DEG C, sequence stops compressor until the wholly off operating of all compressors；If in time T, Tia- 2) ＞ -3 DEG C of Ts, enters step；Wherein Tia is indoor temperature；Ts is set temperature；
If 2) -3 DEG C of ＜ Tia-Ts≤- 1 DEG C, and (Tia-Ts) maintain (- 3 DEG C, -1 DEG C] time be more than T, then original compress Stop compressor operating on the basis of machine operating quantity, on this basis, after time T, if Tia-Ts≤- 3 DEG C, it returns Step 1), if -3 DEG C of ＜ Tia-Ts≤- 1 DEG C, repeatedly step 2), if 3) ＞ -1 DEG C of Tia-Ts, enters step；(if Tia-Ts) Maintain (- 3 DEG C, -1 DEG C] time be no more than T, and Tia-Ts≤- 3 DEG C, then return to step 1)；(if Tia-Ts) maintain (- 3 DEG C, -1 DEG C] time be no more than T, and ＞ -1 DEG C of Tia-Ts, then enter step 3)；
If 3) -1 DEG C of Tia-Ts≤1 DEG C ＜, and (Tia-Ts) maintain (- 1 DEG C, 1 DEG C] time be more than T, then keep former compression Machine operating status, on this basis, compressor continues to run with, in time T, if Tia-Ts≤- 1 DEG C, return to step 2), If -1 DEG C of Tia-Ts≤1 DEG C ＜, repeatedly step 3), if 4) ＞ -1 DEG C of Tia-Ts, enters step；If (Tia-Ts) is maintained (- 1 DEG C, 1 DEG C] time be no more than T, and Tia-Ts≤- 1 DEG C, then return to step 2)；(if Tia-Ts) maintain (- 1 DEG C, 1 DEG C] time be no more than T, and 1 DEG C of Tia-Ts ＞, then enter step 4)；
If 4) 1 DEG C of Tia-Ts≤2 DEG C ＜, and (Tia-Ts) maintain (1 DEG C, 2 DEG C] time be more than T, then former compressor transport Increase compressor operating on the basis of revolution amount, on this basis, in the time T that compressor continues to run with, if Tia-Ts ≤ 1 DEG C, then return to step 3), if 1 DEG C of Tia-Ts≤2 DEG C ＜, repeatedly step 4), if 2 DEG C of Tia-Ts ＞, enter step 5)；(if Tia-Ts) maintain (1 DEG C, 2 DEG C] time be no more than T, and Tia-Ts≤1 DEG C, then return to step 3)；If (Tia- Ts) maintain (1 DEG C, 2 DEG C] time be no more than T, and 2 DEG C of Tia-Ts ＞, then enter step 5)；
If 5) 2 DEG C of Tia-Ts ＞, all compressors are sequentially opened until compressor all starts；After compressor all operates, when Between in T, if Tia-Ts≤2 DEG C, return to step 4)；If 2 DEG C of Tia-Ts ＞, repeatedly step 5).
2. the compressor control method of rail vehicle fixed frequency air conditioner according to claim 1, which is characterized in that Ts is set as 22 DEG C~30 DEG C.
3. the compressor control method of rail vehicle fixed frequency air conditioner according to claim 1, which is characterized in that T is set as 60S。
CN201611150225.0A 2016-12-14 2016-12-14 A kind of compressor control method of rail vehicle fixed frequency air conditioner Active CN106515771B (en)

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CN106949607A (en) * 2017-04-11 2017-07-14 广东志高暖通设备股份有限公司 A kind of air-conditioning, multi-compressor system refrigerant flow and control method
CN111256363A (en) * 2020-02-19 2020-06-09 青岛海尔中央空调有限公司 Multi-connected heat pump water heater and control method thereof
CN112678006B (en) * 2020-11-30 2022-07-12 山东朗进科技股份有限公司 Multi-compressor air conditioning unit cold quantity adjusting and controlling method and air conditioning unit for railway vehicle

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US4006603A (en) * 1975-06-13 1977-02-08 Vapor Corporation Air conditioning system for a railway vehicle
CN101004284A (en) * 2006-01-20 2007-07-25 三星电子株式会社 Control method of an operating an air-conditioner
CN101545667A (en) * 2008-03-25 2009-09-30 珠海格力电器股份有限公司 Method and device for controlling operation of air conditioner
CN101846413A (en) * 2010-05-26 2010-09-29 南车株洲电力机车有限公司 Unitary air-conditioning unit of subway vehicle and control method thereof
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