CN107017699B - Fast automatic change-over switch controller - Google Patents
Fast automatic change-over switch controller Download PDFInfo
- Publication number
- CN107017699B CN107017699B CN201710317086.4A CN201710317086A CN107017699B CN 107017699 B CN107017699 B CN 107017699B CN 201710317086 A CN201710317086 A CN 201710317086A CN 107017699 B CN107017699 B CN 107017699B
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- Prior art keywords
- power supply
- resistor
- voltage
- phase
- standby
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Abstract
The invention relates to a fast automatic transfer switch controller. The power supply circuit is characterized in that each phase of two paths of power supplies in the power supply circuit is respectively connected to the input ends of a main power supply and a standby power supply of each phase of two paths of power supplies of the controller; after each phase of main and standby ends are respectively connected with a rectifier bridge, AC220V voltage is electrically rectified into DC311V voltage; the main Direct Current (DC) 311V and the standby Direct Current (DC) 311V of each phase are respectively connected together through a diode and then are connected with the input end of a switching power supply, are converted into Direct Current (DC) 5V through the switching power supply, and the output end of the Direct Current (DC) 5V is connected with a singlechip; the main and standby Direct Current (DC) 311V of each phase is connected in parallel through three resistors, a voltage divider, a resistor, a capacitor and a voltage stabilizing tube, and a voltage taking signal is connected into the singlechip. The invention omits a power supply conversion element and does not use a voltage transformer with high price. The rectified signal is directly used for single chip microcomputer detection through resistor voltage division, the signal is stable, and meanwhile a voltage stabilizing circuit part is omitted. The circuit has the advantages of simple structure, stable signal, cost saving, energy saving and environmental protection.
Description
Technical Field
The invention belongs to a change-over switch, and particularly relates to a fast automatic change-over switch controller.
Background
The automatic change-over switch is a change-over switch appliance which is suitable for a double-power supply system to be used for switching on and off a circuit and an isolation circuit infrequently in a low-voltage distribution system. The dual-power supply system is mainly used for important places requiring uninterrupted power supply, such as high-rise buildings, markets, banks, airports, fire protection, communication and the like, and is used for completing the infrequent switching on and off of circuits and isolation circuits of the dual-power supply system. In the prior art, voltage signals of an automatic transfer switch are all acquired through a voltage transformer. However, the voltage transformer collects alternating current signals, so positive and negative power supplies plus or minus 5v are needed to be provided, and then the alternating current voltage signals are amplified, voltage reference is lifted and then used for single chip microcomputer detection, so that automatic conversion of dual power supplies is realized.
Disclosure of Invention
The invention provides a fast automatic transfer switch controller without providing positive and negative power supply +/-5 v for solving the technical problems in the prior art.
The invention adopts the technical proposal for solving the technical problems in the prior art that: the structure of the control circuits corresponding to the main and standby corresponding phase power supplies in the main and standby three-phase power supplies is the same, namely, two ends of the main power supply phase power supply are connected with the input end of a first rectifier bridge, and the positive output end of the first rectifier bridge is connected with the cathode of a first diode; two ends of the opposite phase power supply in the standby power supply are connected with the input end of a second rectifier bridge, and the positive output end of the second rectifier bridge is connected with the cathode of a second diode; the anodes of the first diode and the second diode are connected together and then connected to the positive input end of the switching power supply; the negative output ends of the first rectifier bridge and the second rectifier bridge are connected together and then connected with the negative input end of the switching power supply; the negative input end of the first rectifier bridge is connected with one end of a first resistor, the other end of the first resistor is connected with one end of a second resistor, and the other end of the second resistor is connected with one end of a first voltage stabilizing tube, one end of a third resistor and the cathode end of a first capacitor; the other end of the first voltage stabilizing tube, the other end of the third resistor, the anode end of the first capacitor and the cathode of the first diode are connected together and then connected with an I/O port of the singlechip; the negative input end of the second rectifier bridge is connected with one end of a fourth resistor, the other end of the fourth resistor is connected with one end of a fifth resistor, and the other end of the fifth resistor is connected with one end of a second voltage stabilizing tube, one end of a sixth resistor and the cathode of a second capacitor; the other end of the second voltage stabilizing tube, the other end of the sixth resistor, the anode end of the second capacitor C2 and the cathode of the second diode are connected together and then connected with the other I/O port of the singlechip; the output end of the switching power supply is connected with the power supply end of the singlechip; the output I/O port of the singlechip is connected with a driving mechanism.
The invention has the advantages and positive effects that: because the rectifier bridge is adopted for rectification, the voltage signal is obtained through resistor voltage division, and the rectifier bridge does not need to provide a power supply. Thus, a power conversion element is omitted, and an expensive voltage transformer is not needed. The rectified signal is directly used for single chip microcomputer detection through resistor voltage division, the signal is stable, and meanwhile a voltage stabilizing circuit part is omitted. The circuit has the advantages of simple structure, stable signal, cost saving, energy saving and environmental protection.
Drawings
Fig. 1 is a schematic diagram of an appliance of the present invention.
Detailed Description
For a further understanding of the nature, features, and efficacy of the present invention, the following examples are set forth in order to provide a further understanding of the invention, and are intended to be described in connection with the accompanying drawings:
as shown in fig. 1, NA-NN of an a-phase power supply in a three-phase main power supply is connected with an input end of a rectifier bridge D1, and a forward output end of the rectifier bridge D1 is connected with a cathode of a diode D3; RA-RN of A phase power supply in the standby power supply is connected with the input end of the rectifier bridge D2, and the forward output end of the rectifier bridge D2 is connected with the cathode of the diode D4. The anodes of diodes D3, D4 are connected together and then to the positive input of the switching power supply. The negative output ends of D1 and D2 of the rectifier bridge are connected to the negative input end of the switching power supply. The negative input end of the rectifier bridge D1 is connected with one end of a resistor R1, the other end of the resistor R1 is connected with one end of a resistor R2, the other end of the resistor R2 is connected with one end of a voltage stabilizing tube D5, one end of a resistor R3 and the cathode end of a capacitor C1; the other end of the voltage stabilizing tube D5, the other end of the resistor R3, the anode end of the capacitor C1 and the cathode of the diode D3 are connected together and then connected with the I/O port of the singlechip. The negative input end of the rectifier bridge D2 is connected with one end of a resistor R4, the other end of the resistor R4 is connected with one end of a resistor R5, the other end of the resistor R5 is connected with one end of a voltage stabilizing tube D6, one end of the resistor R6 and the cathode end of a capacitor C2; the other end of the voltage stabilizing tube D6, the other end of the resistor R6, the anode end of the capacitor C2 and the cathode of the diode D4 are connected together and then connected with the I/O port of the singlechip. The output end of the switching power supply is connected with the power supply end of the singlechip. The output I/O port of the singlechip is connected with a driving mechanism.
The structure of the B-phase power supply control circuit in the three-phase main power supply and the corresponding B-phase power supply control circuit in the standby power supply is the same as above. The structure of the corresponding C-phase power supply control circuit in the three-phase main power supply and the corresponding C-phase power supply in the standby power supply is the same as above.
The driving process comprises the following steps: two paths of power supplies in the power supply line are respectively connected to the input ends of a main power supply A phase and a standby power supply A phase of the automatic transfer switch controller. The main A and the standby A are connected with rectifier bridges D1 and D2, and the AC220V voltage is electrically rectified into DC311V after passing through the rectifier bridges respectively. The direct current DC311V converted by the main A and the standby A are respectively connected with the input end of the switching power supply through the diodes D3 and D4, and are converted into direct current DC5V through the switching power supply, and the output end is connected with the singlechip Q1 to supply power for the singlechip. The main power supply A-phase direct current DC311V is divided by resistors R1, R2 and R3, the resistor R3, a capacitor C1 and a voltage stabilizing tube D5 are connected in parallel, and a voltage signal is accessed to the singlechip. And the single chip microcomputer is used for judging the three-phase operation condition of the main power supply A, B, C (the main B and the main C are identical and the main A are identical). The standby power A-phase Direct Current (DC) 311V is divided by resistors R4, R5 and R6, the resistor R6, a capacitor C2 and a voltage stabilizing tube D6 are connected in parallel, and a voltage signal is accessed to the singlechip. And judging the three-phase operation condition of the standby power supply A, B, C (the standby B and the standby C are consistent with the standby A) by the singlechip. And under normal conditions, the main power supply supplies power in the circuit, and when the singlechip detects that the main power supply fails, the execution mechanism is driven to be converted into the standby power supply to supply power, so that the automatic switching function is realized. If the singlechip detects that the main power supply is recovered to be normal, the singlechip drives the execution mechanism to recover to the power supply of the main power supply, which is a self-recovery function. If the standby power supply also fails, the singlechip drives the execution mechanism to execute full-divide operation.
Claims (1)
1. A fast automatic transfer switch controller is characterized in that: the structure of the control circuits corresponding to the main and standby corresponding phase power supplies in the main and standby three-phase power supplies is the same, namely, two ends of the main power supply phase power supply are connected with the input end of a first rectifier bridge, and the positive output end of the first rectifier bridge is connected with the cathode of a first diode; two ends of the opposite phase power supply in the standby power supply are connected with the input end of a second rectifier bridge, and the positive output end of the second rectifier bridge is connected with the cathode of a second diode; the anodes of the first diode and the second diode are connected together and then connected to the positive input end of the switching power supply; the negative output ends of the first rectifier bridge and the second rectifier bridge are connected together and then connected with the negative input end of the switching power supply; the negative input end of the first rectifier bridge is connected with one end of a first resistor, the other end of the first resistor is connected with one end of a second resistor, and the other end of the second resistor is connected with one end of a first voltage stabilizing tube, one end of a third resistor and the cathode end of a first capacitor; the other end of the first voltage stabilizing tube, the other end of the third resistor, the anode end of the first capacitor and the cathode of the first diode are connected together and then connected with an I/O port of the singlechip; the negative input end of the second rectifier bridge is connected with one end of a fourth resistor, the other end of the fourth resistor is connected with one end of a fifth resistor, and the other end of the fifth resistor is connected with one end of a second voltage stabilizing tube, one end of a sixth resistor and the cathode end of a second capacitor; the other end of the second voltage stabilizing tube, the other end of the sixth resistor, the anode end of the second capacitor C2 and the cathode of the second diode are connected together and then connected with the other I/O port of the singlechip; the output end of the switching power supply is connected with the power supply end of the singlechip; the output I/O port of the singlechip is connected with a driving mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710317086.4A CN107017699B (en) | 2017-05-08 | 2017-05-08 | Fast automatic change-over switch controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710317086.4A CN107017699B (en) | 2017-05-08 | 2017-05-08 | Fast automatic change-over switch controller |
Publications (2)
| Publication Number | Publication Date |
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| CN107017699A CN107017699A (en) | 2017-08-04 |
| CN107017699B true CN107017699B (en) | 2023-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710317086.4A Active CN107017699B (en) | 2017-05-08 | 2017-05-08 | Fast automatic change-over switch controller |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203151212U (en) * | 2013-03-12 | 2013-08-21 | 北京正北元电器有限公司 | Controller for dual-supply automatic change-over switch |
| WO2014071674A1 (en) * | 2012-11-09 | 2014-05-15 | 联合汽车电子有限公司 | Direct-current isolation buck convertor and bus voltage detection circuit thereof |
| CN205453235U (en) * | 2016-03-28 | 2016-08-10 | 中信重工开诚智能装备有限公司 | Mining high -pressure flame proof converter uninterrupted power source power supply unit |
| CN206922494U (en) * | 2017-05-08 | 2018-01-23 | 天津市百利电气有限公司 | Quick automatic change-over switch control device |
-
2017
- 2017-05-08 CN CN201710317086.4A patent/CN107017699B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014071674A1 (en) * | 2012-11-09 | 2014-05-15 | 联合汽车电子有限公司 | Direct-current isolation buck convertor and bus voltage detection circuit thereof |
| CN203151212U (en) * | 2013-03-12 | 2013-08-21 | 北京正北元电器有限公司 | Controller for dual-supply automatic change-over switch |
| CN205453235U (en) * | 2016-03-28 | 2016-08-10 | 中信重工开诚智能装备有限公司 | Mining high -pressure flame proof converter uninterrupted power source power supply unit |
| CN206922494U (en) * | 2017-05-08 | 2018-01-23 | 天津市百利电气有限公司 | Quick automatic change-over switch control device |
Non-Patent Citations (1)
| Title |
|---|
| 基于单片机采用特殊结构开关主电路的小功率高温无刷直流电动机驱动器;邹继明;陈万连;耿炎;;微电机;-;第-卷(第05期);全文 * |
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| CN107017699A (en) | 2017-08-04 |
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