CN102570588A - Automatic power transfer switch controller and control method thereof - Google Patents
Automatic power transfer switch controller and control method thereof Download PDFInfo
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- CN102570588A CN102570588A CN2011104519396A CN201110451939A CN102570588A CN 102570588 A CN102570588 A CN 102570588A CN 2011104519396 A CN2011104519396 A CN 2011104519396A CN 201110451939 A CN201110451939 A CN 201110451939A CN 102570588 A CN102570588 A CN 102570588A
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- transfer switch
- power supply
- microprocessor
- switch controller
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Abstract
The invention discloses an automatic power transfer switch controller, which comprises a microprocessor, a memory, a switching circuit, a voltage signal acquisition unit, a current signal acquisition unit, a display module and a power transfer switch unit, wherein the voltage signal acquisition unit and the current signal acquisition unit are connected with the input end of the microprocessor respectively; the output end of the microprocessor is connected with the switching circuit and the display module respectively; the microprocessor is connected with the memory; and the output end of the switching circuit is connected with the power transfer switch unit. The automatic power transfer switch controller with the structure has the advantages that: 1, power is supplied to the controller by a primary three-phase power supply and a secondary three-phase power supply at the same time, the normal operation of the controller can be ensured without additional working power at any time as long as the power of one phase is normal, and the controller has a wide application range; and 2, the over-voltage, under-voltage, over-frequency, under-frequency, phase loss and load over-current (three-phase) failures of the power can be automatically monitored.
Description
Technical field
The present invention relates to the transfer switch technical field, particularly a kind of power supply automatic transfer switch controller and control method thereof.
Background technology
Along with development of technology and development in recent years; A kind of novel product has appearred in the power supply switched system---automatic transfer switching electric appliance (ATSE); It is made up of 1 (or several) transfer switching equipment and other essential electrical equipment; Be used to monitor power circuit; And load circuit (breaking down) gone to the device for switching of another (subsequent use) power supply automatically from a power supply, and be the novel product that is exclusively used in power source conversion, we can say that automatic transfer switching electric appliance (ATSE) representing the direction of power supply switched system series products development.Automatic transfer switch controller is as the core component of automatic transfer switching electric appliance, and the quality of its performance will directly influence quick-action property, reliability, the fail safe of automatic transfer switching electric appliance.Conversion is in case failure will cause one of following two kinds of harm: short circuit between power supply or important load outage (even of short duration power failure), its consequence all is serious.This not only can bring economic loss (make and produce pause, finance paralysis), also possibly cause social concern (life and safety are in danger).
At present, normally used double-power supply switching device all is that designing institute proposes technical parameter according to design, is utilized electric elements such as knife switch, air switch, contactor to assemble by complete production producer.This series products ubiquity the problem of complex structure, function singleness, universal applicability difference.
Summary of the invention
Technical problem to be solved by this invention is to the deficiency of prior art, a kind of measuring speed is fast, precision is high, anti-electromagnetic interference capability is strong power supply automatic transfer switch controller and control method thereof to be provided.
For solving the problems of the technologies described above; Technical scheme of the present invention is: a kind of power supply automatic transfer switch controller; Comprise microprocessor, memory, switching circuit, voltage signal acquisition unit, current signal collecting unit, display module and transfer switch unit; Described voltage signal acquisition unit, current signal collecting unit are connected with the input of microprocessor respectively; The output of described microprocessor is connected with switching circuit, display module respectively, and described microprocessor is connected with memory, and the output of described switching circuit is connected with the transfer switch unit.
Described microprocessor is used for voltage, current signal data of gathering according to voltage signal acquisition unit, current signal collecting unit, compares with set point in the memory, judges this road power supply break down time and then Switching power.
Described switching circuit adopts relay.
Described display module adopts charactron.
Described microprocessor adopts single-chip microcomputer, and its model is LPC2138.
A kind of control method of power supply automatic transfer switch controller, described method may further comprise the steps:
A) electric current, the voltage analog of voltage signal acquisition unit, the collection of current signal collecting unit; Change and collect in the microprocessor through A/D converter, microprocessor compares the setup parameter in data that collect and the memory, exceeds setting range if monitor sampled data; Judge that then this road power supply breaks down; Microprocessor sends control signal corresponding, the control switch circuit leave the relay adhesive, thereby control transfer switch unit switches to another road power supply.
The present invention adopts said structure and method, has the following advantages: 1, controller is supplied power by major and minor three phase mains simultaneously.Whenever, as long as there is a phase power supply normal, can guarantee the operate as normal of controller, need not the extra work power supply, applicable situation is very extensive; 2, automatically the overvoltage of power supply, under-voltage, overfrequency, under-frequency, the phase failure and load overcurrent (syllogic) fault are monitored, and controlled by the setting value that is provided with; Has 24V fire-fighting link function (syllogic); 3, the definition of the major-minor end of double loop power supply can be by the user's request setting; 4, can realize remote measurement, remote signalling and remote control through the RS485 communication port to controller.And can realize the field programming function of control logic through the upper computer software of customization; 5, adopt voltage, current transformer to cooperate high-speed a/d measuring voltage electric current; Measuring speed is fast, precision is high, anti-electromagnetic interference capability is strong; And the software database algorithm that invention is unique utilizes plenty hardware resources, can realize the controller field programming; Make the control logic variation, be suitable for the needs of various occasions.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed explanation;
Fig. 1 is a logical construction block diagram of the present invention;
Fig. 2 is a circuit structure diagram of the present invention;
Fig. 3 is the software flow pattern of Timing Processing program among the present invention;
Fig. 4 is the software flow pattern of exception handles among the present invention;
In Fig. 1,1, microprocessor; 2, memory; 3, switching circuit; 4, voltage signal acquisition unit; 5, current signal collecting unit; 6, display module; 7, transfer switch unit.
Embodiment
Like Fig. 1～a kind of power supply automatic transfer switch controller shown in Figure 2; Comprise microprocessor 1, memory 2, switching circuit 3, voltage signal acquisition unit 4, current signal collecting unit 5, display module 6 and transfer switch unit 7; Voltage signal acquisition unit 4, current signal collecting unit 5 are connected with the input of microprocessor 1 respectively; The output of microprocessor 1 is connected with switching circuit 3, display module 6 respectively; Microprocessor 1 is connected with memory 2, and the output of switching circuit 3 is connected with transfer switch unit 7.
Microprocessor 1 is used for voltage, current signal data of gathering according to voltage signal acquisition unit 4, current signal collecting unit 5, compares with set point in the memory 2, judges this road power supply break down time and then Switching power.Switching circuit 3 adopts relay.Display module 6 adopts charactron.Microprocessor 1 adopts single-chip microcomputer, and its model is LPC2138.If excessive baked wheaten cake, the fire of causing of electric current.The sensor acquisition signal also is sent to microprocessor 1, microprocessor 1 control alarm equipment alarm.
A kind of control method of power supply automatic transfer switch controller, method may further comprise the steps:
A) electric current, the voltage analog of voltage signal acquisition unit, the collection of current signal collecting unit; Change and collect in the microprocessor through A/D converter, microprocessor compares the setup parameter in data that collect and the memory, exceeds setting range if monitor sampled data; Judge that then this road power supply breaks down; Microprocessor sends control signal corresponding, the control switch circuit leave the relay adhesive, thereby control transfer switch unit switches to another road power supply.
Software flow pattern for Timing Processing program among the present invention shown in Figure 3;
In step 100, flow process begins, and flow process gets into step 101;
Whether in step 101, judging that CAP catches interrupts, if be judged as is, flow process gets into step 103, if be judged as not, flow process gets into step 102;
In step 102, judge whether timer 0 interrupts, if be judged as be, flow process gets into step 104, if be judged as not, flow process gets into step 105;
In step 103, the capture interrupt program, flow process gets into step 111;
In step 104, carry out timer 0 program, flow process gets into step 111;
In step 105, judge that timer 1 interrupts, if be judged as be, flow process gets into step 106, if be judged as not, flow process gets into step 107;
In step 106, carry out timer 1 program, flow process gets into step 111;
In step 107, judge whether that 12C interrupts, if be judged as be, flow process gets into step 108, if be judged as not, flow process gets into step 109;
In step 108, carry out the 12C program, flow process gets into step 111;
In step 109, judge whether that serial ports interrupts, if be judged as be, flow process gets into step 110, if be judged as not, flow process gets into step 111;
In step 110, carry out the serial ports program, flow process gets into step 111;
In step 111, EP (end of program).
Software flow pattern for exception handles among the present invention shown in Figure 4;
In step 200, flow process begins, and flow process gets into step 201;
In step 201, judge whether electric current crosses the border, if be judged as be, flow process gets into step 202, if be judged as not, flow process gets into step 203;
In step 202, to carry out current protection and handle, flow process gets into step 210;
In step 203, judge whether fire alarm, if be judged as be, flow process gets into step 204, if be judged as not, flow process gets into step 205;
In step 204, to carry out the fire protection and handle, flow process gets into step 210;
In step 205, judge whether voltage crosses the border, if be judged as be, flow process gets into step 206, if be judged as not, flow process gets into step 207;
In step 206, to carry out voltage protection and handle, flow process gets into step 209;
In step 207, whether determination frequency crosses the border, if be judged as is, flow process gets into step 208, if be judged as not, flow process gets into step 209;
In step 210, system lock resets, and flow process gets into step 209;
In step 209, flow process is returned.
Middle controller of the present invention is supplied power by major and minor three phase mains simultaneously.Whenever, as long as there is a phase power supply normal, can guarantee the operate as normal of controller, need not the extra work power supply, applicable situation is very extensive.Automatically the overvoltage of power supply, under-voltage, overfrequency, under-frequency, the phase failure and load overcurrent (syllogic) fault are monitored, and controlled by the setting value that is provided with; Has 24V fire-fighting link function (syllogic).The major-minor end definition of double loop power supply can be by the user's request setting.Can realize remote measurement, remote signalling and remote control through the RS485 communication port to controller.And can realize the field programming function of control logic through the upper computer software of customization.Adopt voltage, current transformer to cooperate high-speed a/d measuring voltage electric current; Measuring speed is fast, precision is high, anti-electromagnetic interference capability is strong; And the software database algorithm that invention is unique utilizes plenty hardware resources, can realize the controller field programming; Make the control logic variation, be suitable for the needs of various occasions.
Combine accompanying drawing that the present invention has been carried out exemplary description above; Obviously the concrete realization of the present invention does not receive the restriction of aforesaid way; As long as the various improvement of having adopted method design of the present invention and technical scheme to carry out; Or directly apply to other occasion without improvement, all within protection scope of the present invention.
Claims (6)
1. power supply automatic transfer switch controller; It is characterized in that: comprise microprocessor (1), memory (2), switching circuit (3), voltage signal acquisition unit (4), current signal collecting unit (5), display module (6) and transfer switch unit (7); Described voltage signal acquisition unit (4), current signal collecting unit (5) are connected with the input of microprocessor (1) respectively; The output of described microprocessor (1) is connected with switching circuit (3), display module (6) respectively; Described microprocessor (1) is connected with memory (2), and the output of described switching circuit (3) is connected with transfer switch unit (7).
2. a kind of power supply automatic transfer switch controller according to claim 1; It is characterized in that: described microprocessor (1); Be used for voltage, current signal data according to voltage signal acquisition unit (4), current signal collecting unit (5) collection; Compare with the set point in the memory (2), judge this road power supply break down time and then Switching power.
3. a kind of power supply automatic transfer switch controller according to claim 1 is characterized in that: described switching circuit (3) adopts relay.
4. a kind of power supply automatic transfer switch controller according to claim 1 is characterized in that: described display module (6) adopts charactron.
5. a kind of power supply automatic transfer switch controller according to claim 1 is characterized in that: described microprocessor (1) adopts single-chip microcomputer, and its model is LPC2138.
6. control method according to each described power supply automatic transfer switch controller of claim 1～5, it is characterized in that: described method may further comprise the steps:
A) electric current, the voltage analog of voltage signal acquisition unit, the collection of current signal collecting unit; Change and collect in the microprocessor through A/D converter, microprocessor compares the setup parameter in data that collect and the memory, exceeds setting range if monitor sampled data; Judge that then this road power supply breaks down; Microprocessor sends control signal corresponding, the control switch circuit leave the relay adhesive, thereby control transfer switch unit switches to another road power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104519396A CN102570588A (en) | 2011-12-29 | 2011-12-29 | Automatic power transfer switch controller and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104519396A CN102570588A (en) | 2011-12-29 | 2011-12-29 | Automatic power transfer switch controller and control method thereof |
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| CN102570588A true CN102570588A (en) | 2012-07-11 |
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| CN2011104519396A Pending CN102570588A (en) | 2011-12-29 | 2011-12-29 | Automatic power transfer switch controller and control method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102841599A (en) * | 2012-08-24 | 2012-12-26 | 北京合锐赛尔电力科技有限公司 | Intelligent power distribution switch control circuit fault detection circuit and detection method thereof |
| CN104698939A (en) * | 2015-03-11 | 2015-06-10 | 朱得亚 | Intelligent switch control system |
| CN106655083A (en) * | 2016-09-19 | 2017-05-10 | 深圳市康凯斯信息技术有限公司 | Wide voltage power supply protection device and method for electric car vehicle equipment |
| CN107332113A (en) * | 2017-09-01 | 2017-11-07 | 张志明 | A kind of electrical control gear and distribution box cabinet |
| CN110707803A (en) * | 2019-10-14 | 2020-01-17 | 广州创锐车用电器有限公司 | Power supply switching device and vehicle |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5739594A (en) * | 1996-02-07 | 1998-04-14 | Zenith Controls, Inc. | Controller for automatic transfer switches |
| CN2645322Y (en) * | 2003-04-30 | 2004-09-29 | 黄浙勇 | Intelligent type power supply automatic transfer switch circuit arrangement |
| CN202405862U (en) * | 2011-12-29 | 2012-08-29 | 安徽鑫龙电器股份有限公司 | Automatic power transfer switch controller |
-
2011
- 2011-12-29 CN CN2011104519396A patent/CN102570588A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5739594A (en) * | 1996-02-07 | 1998-04-14 | Zenith Controls, Inc. | Controller for automatic transfer switches |
| CN2645322Y (en) * | 2003-04-30 | 2004-09-29 | 黄浙勇 | Intelligent type power supply automatic transfer switch circuit arrangement |
| CN202405862U (en) * | 2011-12-29 | 2012-08-29 | 安徽鑫龙电器股份有限公司 | Automatic power transfer switch controller |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102841599A (en) * | 2012-08-24 | 2012-12-26 | 北京合锐赛尔电力科技有限公司 | Intelligent power distribution switch control circuit fault detection circuit and detection method thereof |
| CN102841599B (en) * | 2012-08-24 | 2014-12-24 | 北京合锐赛尔电力科技股份有限公司 | Intelligent power distribution switch control circuit fault detection circuit and detection method thereof |
| CN104698939A (en) * | 2015-03-11 | 2015-06-10 | 朱得亚 | Intelligent switch control system |
| CN106655083A (en) * | 2016-09-19 | 2017-05-10 | 深圳市康凯斯信息技术有限公司 | Wide voltage power supply protection device and method for electric car vehicle equipment |
| CN106655083B (en) * | 2016-09-19 | 2019-06-11 | 深圳市康凯斯信息技术有限公司 | A kind of the Width funtion apparatus for protecting power supply and method of electric-vehicle-mounted equipment |
| CN107332113A (en) * | 2017-09-01 | 2017-11-07 | 张志明 | A kind of electrical control gear and distribution box cabinet |
| CN110707803A (en) * | 2019-10-14 | 2020-01-17 | 广州创锐车用电器有限公司 | Power supply switching device and vehicle |
| CN110707803B (en) * | 2019-10-14 | 2021-05-25 | 广州创锐车用电器有限公司 | Power supply switching device and vehicle |
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Application publication date: 20120711 |