CN101169279A - Air conditioner control system based on DSP and auto-disturbance rejection technology - Google Patents
Air conditioner control system based on DSP and auto-disturbance rejection technology Download PDFInfo
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- CN101169279A CN101169279A CNA2007101503879A CN200710150387A CN101169279A CN 101169279 A CN101169279 A CN 101169279A CN A2007101503879 A CNA2007101503879 A CN A2007101503879A CN 200710150387 A CN200710150387 A CN 200710150387A CN 101169279 A CN101169279 A CN 101169279A
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Abstract
The invention relates to an air conditioning system based on the DSP and self interference resisting technique. The invention is characterized in that the system includes a self interference resisting controller which belongs to the self interference resisting procedure soft and based on the DSP chip, a frequency changer, a blower and a temperature transducer. The invention has the advantages that 1. the hardware device is connected with the software program, with the hardware device simple and software program easy to be understood; 2. the application of the self interference resisting technique on the control to a compressor has the incomparable advantages such as quick response, high precision in control, strong interference resistance; 3. the use of the DSP chip makes the operation quick, programming easy and performance stable and can greatly improve the response and control speed of the control system; 4. the detection and feedback of the controlled temperature by utilizing the temperature transducer makes the precision high and achieves high speed; 5. the core of the whole control system is on the software achievement of the self interference resisting controller, and the adjustment of the hardware is not great, thereby the cost is not high.
Description
(1) technical field:
The invention belongs to air-conditioner temperature automatic control technology field, is a kind of air-conditioner control system based on DSP and auto-disturbance rejection technology.
(2) background technology:
Along with the fast development of modern industry and city-building, rapid growth of economy and people are to the serious hope of and comfortable for living environment, and air-conditioning enters into huge numbers of families with swift and violent speed.And natural resources is constantly exploited, and energy demand day is becoming tight, and it is particularly important that the energy saving of air-conditioning seems.Air conditioning system maker also complies with this trend, updates the control method of compressor, and promptly the control technology of air-conditioning dominate the market to pursue efficient, comfortable, energy-conservation characteristics, so the control method of compressor becomes the research focus in this field.Current all types of compressor of air conditioner control technology mainly contains: constant speed machine, AC frequency conversion control, DC frequency-changing control, fuzzy control technology etc., and these methods cut both ways, and mainly have the energy consumption height, loss is big, control is complicated, price height, shortcoming such as maintenance difficulty is big.And be the important research direction that heat pump performance improves based on the air conditioning control method of DSP and auto-disturbance rejection technology.
(3) summary of the invention:
The object of the present invention is to provide a kind of air-conditioner control system based on novel control technology, it is in conjunction with every advantage of DSP and auto-disturbance rejection technology, can obtain to respond fast, precision is high, the performance boost of less energy consumption, and can improve the stability and the reliability of operation of air conditioner greatly, reduce influence the stability of a system.
Technical scheme of the present invention: a kind of air-conditioner control system based on DSP and auto-disturbance rejection technology is characterized in that this system is made of the automatic disturbance rejection controller based on dsp chip that comprises the active disturbance rejection program software, frequency converter, blower fan and temperature transmitter; The signal that the input of said automatic disturbance rejection controller based on dsp chip receives the external temperature setting signal and sent into by temperature transmitter, after the active disturbance rejection routine processes of chip internal, output connects the input of frequency converter, transmits the output control signal; Inverter output terminal connects the blower fan input; The temperature transmitter input is surveyed by controlling temperature, and output connects the automatic disturbance rejection controller input.
Above-mentioned said automatic disturbance rejection controller based on dsp chip is by arranging transient process part, extended state observer part and nonlinear combination partly to constitute; The preset signal of input is connected to the signal input part of arranging the transient process part, postpones to handle, according to signal output part output differential signal; The input control signal of controlled device and output signal are connected to the signal input part of extended state observer part, by to the quantity of state of system rise rank observation, according to the observation of signal output part output state amount and differential signal thereof; The error signal that obtains after arranging transient process part and extended state observer output signal partly relatively is connected to the signal input part of nonlinear combination part, by nonlinear combination, according to signal output part control signal is exported, sent into the frequency converter input.
The job step of the active disturbance rejection program software of above-mentioned said automatic disturbance rejection controller based on dsp chip is:
1. system initialization;
2. detect data;
3. the data that detection is obtained Active Disturbance Rejection Control algorithm process;
4. controlled amount;
If 5. the then operation identical with the expection controlled quentity controlled variable of output controlled quentity controlled variable stops, heavily walking step if do not wait then feed back to front end, up to equal, EP (end of program).
Above-mentioned said frequency converter receives the control signal by automatic disturbance rejection controller output, and then the operation of generation control corresponding blower fan is sent into the blower fan input with the output voltage signal that stops.
The control Control of Voltage that above-mentioned said blower fan part is sent into according to frequency converter is exported different wind speed, air output and temperature.
Above-mentioned said temperature transmitter is partly gathered target temperature and is converted to voltage signal, sends into the input of the realization control feedback function of automatic disturbance rejection controller
Operation principle of the present invention: temperature transmitter is that the signal of telecommunication feeds back to the automatic disturbance rejection controller based on dsp chip with the temperature transition of controlled device; Automatic disturbance rejection controller is handled respectively with the preset temperature signal of input with by the signal that the temperature transmitter feedback is come, arrange transient process to handle the preset temperature signal, the feedback signal that temperature transmitter is sent into is handled through extended state observer, again above two class signals are subtracted each other processing respectively, obtain the differential signal of error signal and error signal, it is carried out outputing control signals to frequency converter after the nonlinear combination processing then; After frequency converter receives the control signal of automatic disturbance rejection controller output, handle through inner frequency changer circuit, output working control signal is sent into blower fan, the operation of control blower fan with stop; If temperature is lower than setting value, then control signal can make blower fan strengthen air output, thereby temperature is reduced, otherwise, then can elevate the temperature, thereby reach the purpose of controlling temperature.
Superiority of the present invention is: 1, hardware unit combines with software programming, the hardware unit simplicity of design, and software programming is easy-to-understand; 2, Auto Disturbances Rejection Control Technique is used in control to compressor, because Auto Disturbances Rejection Control Technique is very new control technology, its many-sided advantage is that other controllers are incomparable, as: response speed is fast, control accuracy is high, the disturbance rejection performance is strong etc.; 3, use the DSP control chip, the speed of service is fast, programming is easy, stable, can improve the response speed and the control rate of this control system greatly; 4, the serviceability temperature transmitter is to being detected by controlling temperature and feed back, the precision height, and speed is fast; 5, the The whole control system core realizes at the software of automatic disturbance rejection controller, and hardware is changed not quite, and expense is just not high yet.
(4) description of drawings:
Accompanying drawing 1 is the general structure schematic diagram of the related a kind of air-conditioner control system based on DSP and auto-disturbance rejection technology of the present invention.
Accompanying drawing 2 is related a kind of based on the automatic disturbance rejection controller design diagram in the air-conditioner control system of DSP and auto-disturbance rejection technology for the present invention.
Accompanying drawing 3 is related a kind of based on the software control flow chart in the air-conditioner control system of DSP and auto-disturbance rejection technology for the present invention.
(5) specific embodiment:
Embodiment: a kind of air-conditioner control system (see figure 1) based on DSP and auto-disturbance rejection technology, it is characterized in that this system is made up of hardware device and computer software, mainly form by automatic disturbance rejection controller, frequency converter, blower fan and temperature transmitter four parts; The input of said automatic disturbance rejection controller part connects external temperature and sets terminal and temperature transmitter lead-out terminal, and its output connects frequency converter; Said inverter output terminal connects the blower fan input; The temperature transmitter input is surveyed by controlling temperature, and output connects the automatic disturbance rejection controller input.
Above-mentioned said automatic disturbance rejection controller part (see figure 2) is to be made of dsp chip; Automatic disturbance rejection controller after the active disturbance rejection routine processes of chip internal, is exported control signal with the temperature setting signal of input and the signal of being sent into by temperature transmitter, sends into the input of frequency converter; This module is by arranging transient process, extended state observer and three parts of nonlinear combination to form; Said arrangement transient process part mainly is that the preset signal of importing is postponed to handle, thereby extracts its differential signal; Said extended state observer part mainly is according to the control signal of input and output signal the quantity of state of system to be carried out rising rank observation, thereby draws the observation of quantity of state and differential signal thereof; Said nonlinear combination part mainly is that the error signal that obtains after arranging transient process part and extended state observer output signal is partly relatively carried out nonlinear combination, and controlled signal is sent into the frequency converter input.
Above-mentioned said frequency converter part (see figure 1) is the control signal that receives by automatic disturbance rejection controller output, and then produces the respective output voltages signal and send into the blower fan input, the operation of control blower fan with stop.
Above-mentioned said blower fan part (see figure 1) is to change the method for operation according to the control voltage that frequency converter is sent into, thereby control output wind speed and air output reach the purpose of controlling temperature.
Above-mentioned said temperature transmitter part (see figure 1) is to gather target temperature and be converted to voltage signal, sends into automatic disturbance rejection controller, realizes the feedback function of control.
The job step of above-mentioned said computer software (see figure 3) is: 1. system initialization.2. detect the data Active Disturbance Rejection Control algorithm process that 3. data obtain detection.4. controlled amount.If 5. the then operation identical with the expection controlled quentity controlled variable of output controlled quentity controlled variable stops, heavily walking step if do not wait then feed back to front end, up to equal, EP (end of program).
Claims (6)
1. the air-conditioner control system based on DSP and auto-disturbance rejection technology is characterized in that this system is made of the automatic disturbance rejection controller based on dsp chip that comprises the active disturbance rejection program software, frequency converter, blower fan and temperature transmitter; The signal that the input of said automatic disturbance rejection controller based on dsp chip receives the external temperature setting signal and sent into by temperature transmitter, after the active disturbance rejection routine processes of chip internal, output connects the input of frequency converter, transmits the output control signal; Inverter output terminal connects the blower fan input; The temperature transmitter input is surveyed by controlling temperature, and output connects the automatic disturbance rejection controller input.
2. according to the said a kind of air-conditioner control system of claim 1, it is characterized in that said automatic disturbance rejection controller based on dsp chip is by arranging transient process part, extended state observer part and nonlinear combination partly to constitute based on DSP and auto-disturbance rejection technology; The preset signal of input is connected to the signal input part of arranging the transient process part, postpones to handle, according to signal output part output differential signal; The input control signal of controlled device and output signal are connected to the signal input part of extended state observer part, by to the quantity of state of system rise rank observation, according to the observation of signal output part output state amount and differential signal thereof; The error signal that obtains after arranging transient process part and extended state observer output signal partly relatively is connected to the signal input part of nonlinear combination part, by nonlinear combination, according to signal output part control signal is exported, sent into the frequency converter input.
3. according to the said a kind of air-conditioner control system of claim 1, it is characterized in that the job step of the active disturbance rejection program software of said automatic disturbance rejection controller based on dsp chip is based on DSP and auto-disturbance rejection technology:
1. system initialization;
2. detect data;
3. the data that detection is obtained Active Disturbance Rejection Control algorithm process;
4. controlled amount;
If 5. the then operation identical with the expection controlled quentity controlled variable of output controlled quentity controlled variable stops, heavily walking step if do not wait then feed back to front end, up to equal, EP (end of program).
4. according to the said a kind of air-conditioner control system of claim 1 based on DSP and auto-disturbance rejection technology, it is characterized in that said frequency converter receives the control signal by automatic disturbance rejection controller output, and then the operation of generation control corresponding blower fan is sent into the blower fan input with the output voltage signal that stops.
5. according to the said a kind of air-conditioner control system of claim 1, it is characterized in that the control Control of Voltage that said blower fan part is sent into according to frequency converter exports different wind speed, air output and temperature based on DSP and auto-disturbance rejection technology.
6. according to the said a kind of air-conditioner control system of claim 1 based on DSP and auto-disturbance rejection technology, it is characterized in that said temperature transmitter partly gathers target temperature and be converted to voltage signal, send into the input of the realization control feedback function of automatic disturbance rejection controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101503879A CN101169279A (en) | 2007-11-26 | 2007-11-26 | Air conditioner control system based on DSP and auto-disturbance rejection technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2007101503879A CN101169279A (en) | 2007-11-26 | 2007-11-26 | Air conditioner control system based on DSP and auto-disturbance rejection technology |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107168401A (en) * | 2017-06-30 | 2017-09-15 | 华中科技大学 | One kind time division multiplexing closed loop feedback heat control method and system |
| CN109298733A (en) * | 2017-07-25 | 2019-02-01 | 三星电子株式会社 | Thermal control based on active disturbance rejection |
| CN109736870A (en) * | 2019-01-10 | 2019-05-10 | 安徽理工大学 | Underground Local Fan wind speed adjusting method based on modified auto-disturbance rejection technology |
| US11709528B2 (en) | 2017-03-13 | 2023-07-25 | Samsung Electronics Co., Ltd. | Active disturbance rejection based thermal control |
-
2007
- 2007-11-26 CN CNA2007101503879A patent/CN101169279A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11709528B2 (en) | 2017-03-13 | 2023-07-25 | Samsung Electronics Co., Ltd. | Active disturbance rejection based thermal control |
| CN107168401A (en) * | 2017-06-30 | 2017-09-15 | 华中科技大学 | One kind time division multiplexing closed loop feedback heat control method and system |
| CN107168401B (en) * | 2017-06-30 | 2018-02-27 | 华中科技大学 | One kind time division multiplexing closed loop feedback heat control method and system |
| CN109298733A (en) * | 2017-07-25 | 2019-02-01 | 三星电子株式会社 | Thermal control based on active disturbance rejection |
| CN109298733B (en) * | 2017-07-25 | 2022-05-10 | 三星电子株式会社 | Active-disturbance-rejection based thermal control |
| CN109736870A (en) * | 2019-01-10 | 2019-05-10 | 安徽理工大学 | Underground Local Fan wind speed adjusting method based on modified auto-disturbance rejection technology |
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