CN103872758B - Power supply power recirculates controls supervisory control system - Google Patents

Power supply power recirculates controls supervisory control system Download PDF

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Publication number
CN103872758B
CN103872758B CN201410113081.6A CN201410113081A CN103872758B CN 103872758 B CN103872758 B CN 103872758B CN 201410113081 A CN201410113081 A CN 201410113081A CN 103872758 B CN103872758 B CN 103872758B
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power supply
power
control
frequency electric
circuit
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CN103872758A (en
Inventor
刘钰琼
景月
祝贺利
陈海军
王宝新
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Shenyang Aerospace Xinguang Group Co Ltd
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Shenyang Aerospace Xinguang Group Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30Systems 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
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20Smart grids as enabling technology in buildings sector
    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS 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
    • Y04S20/00Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS 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
    • Y04S20/00Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/12Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages
    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS 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
    • Y04S20/00Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20End-user application control systems
    • Y04S20/248UPS systems or standby or emergency generators

Abstract

The present invention relates to a kind of power supply power recirculates and control supervisory control system, three road 400Hz, 220V are inputted three-phase alternating-current supply outward and turned by power recirculates system of powering in four modes and be fed to power consumption equipment.The present invention carries out rectification to the outer input power of outside medium frequency electric generating equipment, for native system provides 27V DC power supply, and the three phase mains index of supervisory control system and the direct voltage index through over commutation simultaneously.Be applicable to the short range of multiple medium frequency electric generating equipment or long-range uninterruptedly turn power supply control; Can the power supply control of short range or long-range any one medium frequency electric generating equipment of chain control and powered operation state, cut off the control of the outside medium frequency electric generating equipment broken down of powering simultaneously.Finally show outside medium frequency electric generating equipment fault by display device to indicate, meanwhile, system has the ac voltage and frequency values of measuring outside medium frequency electric generating equipment, measures the DC voltage value of the inner master control power supply of native system.

Description

Power supply power recirculates controls supervisory control system
Technical field
The present invention relates to a kind of power supply monitoring system, particularly relate to a kind of power supply power recirculates and control supervisory control system, be applicable to the control monitoring of medium frequency electric generating field electric power system.
Background technology
Power supply control supervisory control system is the equipment inputting three-phase alternating-current supply independent of three road 400Hz, 220V outward, is mainly used in ground installation at home with advantages such as its volume are little, lightweight.But in prior art, the three road medium frequency electric generating equipment that cannot realize turn the control and monitoring that are fed to power consumption equipment, and the operation of outside medium frequency electric generating equipment and feeder line thereof exists potential safety hazard.Further, the indices of outside medium frequency electric generating equipment can not be monitored in real time.In use procedure, interference signal is strong, and poor reliability, data are easily lost.
Summary of the invention
The three road medium frequency electric generating equipment that the present invention is directed to turn and are fed to the control of power consumption equipment and the demand of monitoring, provide and a kind of collection control Power convert, the distribution controlling power supply and protection, the measurement of outside medium frequency electric generating device power supply (DPS) and the power supply power recirculates of monitoring and control supervisory control system.Solve in prior art and cannot realize three road medium frequency electric generating equipment and turn and be fed to the control of power consumption equipment and the problem of monitoring.
Technical scheme of the present invention is as follows:
Comprise primary power source, secondary power supply, turn supply control unit, detecting unit, logic control element, electric current distribute with protected location and measuring unit; Primary power source, secondary power supply are powered to unit; The input of measuring unit connects the output of outside medium frequency electric generating equipment, and the output of measuring unit connects detecting unit, and the output connection of detecting unit turns supply control unit; Turn that supply control unit receives detecting unit, electric current distributes and the information of protected location, and control information is delivered to power recirculates and controls actuator, display console, logic control element, turn the control information that supply control unit accepts from display console simultaneously; Measuring unit, logic control element and turn power supply unit connect display console.
Described primary power source is by three road 400Hz of outside medium frequency electric generating equipment, 220V power rectifier become 27V direct current and the 24V DC power supply inputted with outside Hot Spare is to system power supply each other, secondary power supply is the 5V, ± 12V, 27V stabilized power supply that are converted to by primary power source needed for internal circuit.
The described supply control unit that turns comprises power supply conversion control circuit and data processing circuit, and what turn that supply control unit completes three road medium frequency electric generating equipment uninterruptedly turns power supply control; Turn supply control unit complete three road medium frequency electric generating equipment in four modes by power supply power recirculates system turn be fed to power consumption equipment turn power supply control.
Four kinds of described patterns comprise and turn power supply control for a single road in three road medium frequency electric generating equipment, amount to Three models; 4th kind of pattern be the concurrent working of fixing unique two kinds of equipment in three road medium frequency electric generating equipment turn power supply control; All there is distance control mode and local control pattern in described four kinds of patterns, and two kinds of patterns are chain each other.
The described supply control unit that turns comprises master microprocessor and microprocessor for subsequent use, and the input of master microprocessor connects level conversion buffer circuit I, and the output of master microprocessor connects decoding circuit I and output driving circuit; The input of microprocessor for subsequent use connects level conversion buffer circuit II, and the output of microprocessor for subsequent use connects decoding circuit II and output driving circuit; The output connecting communication circuit of decoding circuit I and decoding circuit II; Communication checking module connects master microprocessor and microprocessor for subsequent use respectively.
Described detecting unit completes the on-line checkingi of the voltage of outside medium frequency electric generating equipment output end, frequency, phase sequence, insulation, in real time corresponding faulty indication is sent to the power abnormal signal of middle appearance of the outside medium frequency electric generating equipment in any road, cut off abnormal control signal simultaneously.
Described logic control element is integrated in failure warning information-processing circuit, and logic control element adopts the micro-chip processor with supervisory circuit, and micro-chip processor comprises watchdog circuit, power failure monitoring and reset circuit; The power-on self-test of logic control element completion system; Logic control element completes and carries out data acquisition, data decoding, data communication and the transmission of failure code data to outside medium frequency electric generating equipment fault signal; Logic control element complete outside medium frequency electric generating equipment power the collection of conversion and control instruction, level conversion and Phototube Coupling, data transmission, drive requirement to amplify by exporting and transmit; Logic control element is arranged with photoelectrical coupler at signal acquisition part.
Described logic control element adopts AC/DC, F/V, DC/DC translation circuit, reference voltage source adopts serial voltage regulation circuit, the alternating voltage of the outside medium frequency electric generating equipment of real-time monitoring, frequency and internal system control the direct voltage of general supply, monitor the outside power supply feature of medium frequency electric generating equipment and the power supply feature of internal system, the power quality inside and outside timely reponse system simultaneously.
Described electric current distributes and protected location adopts secondary DC power supply bidirectional protective, and Reverse Current Protection circuit carries out Reverse Current Protection to first order master control power supply, and current foldback circuit, according to the demand of Systematical control power supply, realizes the overcurrent protection that the second level controls power supply.
Described measuring unit adopts measuring circuit to measure ac voltage and the frequency values of outside medium frequency electric generating equipment, and the DC voltage value of measuring system internal control power supply; The direct voltage of described control power supply is the direct current 27V power supply of external dc power 24V or rectifier circuit rectifies.
The advantageous effect of this practicality invention is as follows:
1, adopt the mode of second class protection, the general supply of Protection control system and each branch road control power supply, and present invention achieves and control power supply in intrasystem cascade protection, power protection is considered more thoughtful, perfect.
2, the control mode of fault message of the voltage of the outside medium frequency electric generating equipment of parallel receive, frequency, phase sequence, insulation, overload is adopted, the present invention realizes the real-time online parallel measurement of outside medium frequency electric generating device fault information, dual processor backups each other storage in real time, more effectively ensure that the safe operation of outside medium frequency electric generating equipment and feeder line thereof.
3, accurate AC/DC, F/V, DC/DC translation circuit is adopted, the alternating voltage of the outside medium frequency electric generating equipment of real-time monitoring, frequency and internal system control the direct voltage of general supply, the outside main power source index of medium frequency electric generating equipment of effective monitoring and the power supply feature of internal system, the power quality inside and outside timely reponse system.
4, employing has the micro-chip processor of supervisory circuit, and the present invention uses the watchdog circuit of single chip microcomputer system, power failure is monitored and reset circuit, makes system compacter, effectively overcomes interference signal, improve the reliability of system.
5, adopt and increase photoelectrical coupler in signals collecting part and filter spike, the present invention utilizes the micro-chip processor rejected program of supervisory circuit to run and flies and power-off problems, prevents the easy Loss of significant data after power down.
Accompanying drawing explanation
Fig. 1 is structural principle schematic block diagram of the present invention.
Fig. 2 is the structural principle schematic block diagram turning supply control unit of the present invention.
Embodiment
The present invention, with reference to accompanying drawing, in conjunction with specific embodiments, is described in detail as follows.
Embodiment
Comprise primary power source, secondary power supply, turn supply control unit, detecting unit, logic control element, electric current distribute with protected location and measuring unit; Primary power source, secondary power supply are powered to unit; The input of measuring unit connects the output of outside medium frequency electric generating equipment, and the output of measuring unit connects detecting unit, and the output connection of detecting unit turns supply control unit; Turn that supply control unit receives detecting unit, electric current distributes and the information of protected location, and control information is delivered to power recirculates and controls actuator, display console, logic control element, turn the control information that supply control unit accepts from display console simultaneously; Measuring unit, logic control element and turn power supply unit connect display console.
Three road 400Hz, 220V from outside medium frequency electric generating equipment are inputted three-phase alternating-current supply outward and are rectified into 27V direct current and the 24V DC power supply Hot Spare power supply to the device each other inputted with outside by described primary power source, and secondary power supply is the 5V, ± 12V, 27V stabilized power supply that are converted to by primary power source needed for internal circuit.
Described outside medium frequency electric generating equipment turn supply control unit, with the data message that the power supply state of the control actuator of data processing circuit process power recirculates system performs, what complete three road medium frequency electric generating equipment with power supply conversion control circuit uninterruptedly turns power supply control; Complete three road medium frequency electric generating equipment in four modes by power supply power recirculates system turn be fed to power consumption equipment turn power supply control, comprise local control and Long-distance Control, two kinds of controls are chain each other; Complete the monitoring of the powered operation state of short range or any one medium frequency electric generating equipment of remote monitoring, comprise power supply instruction connection, power supply instruction disconnection, powered operation status fault, cut off the equipment of powering and breaking down at any time.
Four kinds of described patterns comprise and turn power supply control for a single road in three road medium frequency electric generating equipment, amount to Three models; 4th kind of pattern be the concurrent working of fixing unique two kinds of equipment in three road medium frequency electric generating equipment turn power supply control.All there is distance control mode and local control pattern in described four kinds of patterns, and two kinds of patterns are chain each other.
The described supply control unit that turns comprises master microprocessor and microprocessor for subsequent use, and the input of master microprocessor connects level conversion buffer circuit I, and the output of master microprocessor connects decoding circuit I and output driving circuit; The input of microprocessor for subsequent use connects level conversion buffer circuit II, and the output of microprocessor for subsequent use connects decoding circuit II and output driving circuit; The output connecting communication circuit of decoding circuit I and decoding circuit II; Communication checking module connects master microprocessor and microprocessor for subsequent use respectively.
Described detecting unit completes the on-line checkingi of the voltage of outside medium frequency electric generating equipment output end, frequency, phase sequence, insulation, in real time corresponding faulty indication is sent to the power abnormal signal of middle appearance of the outside medium frequency electric generating equipment in any road, cut off abnormal control signal simultaneously.
At outside medium frequency electric generating equipment output end, detecting voltage by three phase unit is set, for judging the voltage indexes of medium frequency electric generating equipment output voltage, power recirculates system provides voltage over standard to protect, the power supply unit that data processing circuit automatic cut-off power is off quality turn power supply control; Outside medium frequency electric generating equipment output end arranges frequency detecting unit and detects for outside medium frequency electric generating device frequency, and power recirculates system provides frequency to exceed standard protection; Outside medium frequency electric generating equipment output end arranges the detection of Phase sequence detection unit for outside medium frequency electric generating equipment feeder voltage phase sequence, and power recirculates system provides phase sequence open circuit protection; Outside medium frequency electric generating equipment output end arranges the detection that insulation resistance detecting unit realizes outside medium frequency electric generating equipment feeder line insulation against ground resistance, and power recirculates system provides insulation to exceed standard protection.
Described logic control element is integrated in failure warning information-processing circuit, and logic control element adopts the micro-chip processor with supervisory circuit, and micro-chip processor comprises watchdog circuit, power failure monitoring and reset circuit; The power-on self-test of logic control element completion system (comprise secondary power supply and whether each detecting unit normally works); Logic control element completes and carries out data acquisition, data decoding, data communication and the transmission of failure code data to outside medium frequency electric generating equipment fault signal; Logic control element complete outside medium frequency electric generating equipment power the collection of conversion and control instruction, level conversion and Phototube Coupling, data transmission, drive requirement to amplify by exporting and transmit; Logic control element is arranged with photoelectrical coupler at signal acquisition part.
Described logic control element adopts AC/DC, F/V, DC/DC translation circuit, reference voltage source adopts serial voltage regulation circuit, the alternating voltage of the outside medium frequency electric generating equipment of real-time monitoring, frequency and internal system control the direct voltage of general supply, monitor the outside power supply feature of medium frequency electric generating equipment and the power supply feature of internal system, the power quality inside and outside timely reponse system simultaneously
Described electric current distributes and protected location adopts secondary DC power supply bidirectional protective, and Reverse Current Protection circuit carries out Reverse Current Protection to first order master control power supply, and current foldback circuit, according to the demand of Systematical control power supply, realizes the overcurrent protection that the second level controls power supply.The total current of first order master control power supply has Reverse Current Protection, during master control power distribution electric current, realizes the overcurrent protection of second level general supply in electric current distributes by current interruption protector.
Described measuring unit adopts measuring circuit to measure ac voltage and the frequency values of outside medium frequency electric generating equipment, and the DC voltage value of measuring system internal control power supply; The direct voltage of described control power supply is the direct current 27V power supply of external dc power 24V or rectifier circuit rectifies, two kinds of power supplys Hot Spare each other.
Output system DC control supply index: rated power: 3kW; Rated voltage: 27V; VD scope: 24.5V ~ 28.5V.
The protection range of this practicality invention is as the criterion with claim, not limited by specific embodiment.

Claims (10)

1. power power recirculates control supervisory control system, it is characterized in that comprising primary power source, secondary power supply, turn supply control unit, detecting unit, logic control element, electric current distribute with protected location and measuring unit; Primary power source, secondary power supply are powered to unit; The input of measuring unit connects the output of outside medium frequency electric generating equipment, and the output of measuring unit connects detecting unit, and the output connection of detecting unit turns supply control unit; Turn that supply control unit receives detecting unit, electric current distributes and the information of protected location, and control information is delivered to power recirculates and controls actuator, display console, logic control element, turn the control information that supply control unit accepts from display console simultaneously; Measuring unit, logic control element and turn power supply unit connect display console.
2. power supply power recirculates according to claim 1 controls supervisory control system, it is characterized in that described primary power source is by the 400Hz of outside medium frequency electric generating equipment, 220V power rectifier become 27V direct current and the 24V DC power supply inputted with outside Hot Spare is to system power supply each other, secondary power supply is the 5V, ± 12V, 27V stabilized power supply that are converted to by primary power source needed for internal circuit.
3. power supply power recirculates according to claim 1 controls supervisory control system, it is characterized in that the described supply control unit that turns comprises power supply conversion control circuit and data processing circuit, what turn that supply control unit completes three road medium frequency electric generating equipment uninterruptedly turns power supply control; Turn supply control unit complete three road medium frequency electric generating equipment in four modes by power supply power recirculates system turn be fed to power consumption equipment turn power supply control.
4. power supply power recirculates according to claim 3 controls supervisory control system, it is characterized in that the Three models in four kinds of described patterns is, turns power supply control for a single road in three road medium frequency electric generating equipment, amounts to three kinds; 4th kind of pattern be the concurrent working of fixing unique two kinds of equipment in three road medium frequency electric generating equipment turn power supply control; All there is distance control mode and local control pattern in above-mentioned four kinds of patterns, and two kinds of patterns are chain each other.
5. power supply power recirculates according to claim 1 controls supervisory control system, it is characterized in that the described supply control unit that turns comprises master microprocessor and microprocessor for subsequent use, the input of master microprocessor connects level conversion buffer circuit I, and the output of master microprocessor connects decoding circuit I and output driving circuit; The input of microprocessor for subsequent use connects level conversion buffer circuit II, and the output of microprocessor for subsequent use connects decoding circuit II and output driving circuit; The output connecting communication circuit of decoding circuit I and decoding circuit II; Communication checking module connects master microprocessor and microprocessor for subsequent use respectively.
6. power supply power recirculates according to claim 1 controls supervisory control system, it is characterized in that described detecting unit completes the on-line checkingi of the voltage of outside medium frequency electric generating equipment output end, frequency, phase sequence, insulation, in real time corresponding faulty indication is sent to the power abnormal signal of middle appearance of the outside medium frequency electric generating equipment in any road, cut off abnormal control signal simultaneously.
7. power supply power recirculates according to claim 1 controls supervisory control system, it is characterized in that described logic control element is integrated in failure warning information-processing circuit, logic control element adopts the micro-chip processor with supervisory circuit, and micro-chip processor comprises watchdog circuit, power failure monitoring and reset circuit; The power-on self-test of logic control element completion system; Logic control element completes and carries out data acquisition, data decoding, data communication and the transmission of failure code data to outside medium frequency electric generating equipment fault signal; Logic control element complete outside medium frequency electric generating equipment power the collection of conversion and control instruction, level conversion and Phototube Coupling, data transmission, drive requirement to amplify by exporting and transmit; Logic control element is arranged with photoelectrical coupler at signal acquisition part.
8. power supply power recirculates according to claim 1 controls supervisory control system, it is characterized in that described logic control element adopts AC/DC, frequency/voltage, DC/DC translation circuit, reference voltage source adopts serial voltage regulation circuit, alternating voltage, the frequency of the outside medium frequency electric generating equipment of real-time monitoring, monitor the power supply feature of outside medium frequency electric generating equipment, the power quality inside and outside timely reponse system simultaneously.
9. power supply power recirculates according to claim 1 controls supervisory control system; it is characterized in that described electric current distributes and adopt secondary DC power supply bidirectional protective with protected location; Reverse Current Protection circuit carries out Reverse Current Protection to first order master control power supply; current foldback circuit, according to the demand of Systematical control power supply, realizes the overcurrent protection that the second level controls power supply.
10. power supply power recirculates according to claim 1 controls supervisory control system, it is characterized in that described measuring unit adopts measuring circuit to measure ac voltage and the frequency values of outside medium frequency electric generating equipment, and the DC voltage value of measuring system internal control power supply; The direct voltage of described control power supply is the direct current 27V power supply of external dc power 24V or rectifier circuit rectifies.
CN201410113081.6A 2014-03-25 2014-03-25 Power supply power recirculates controls supervisory control system Active CN103872758B (en)

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