CN102904338A - Economical operation control method of transformer - Google Patents
Economical operation control method of transformer Download PDFInfo
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- CN102904338A CN102904338A CN2012103068882A CN201210306888A CN102904338A CN 102904338 A CN102904338 A CN 102904338A CN 2012103068882 A CN2012103068882 A CN 2012103068882A CN 201210306888 A CN201210306888 A CN 201210306888A CN 102904338 A CN102904338 A CN 102904338A
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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
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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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
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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Abstract
An economical operation control method of a transformer is characterized by mainly comprising a controller, a long-distance communication signal transceiving circuit, a monitoring background, a transformer load parameter collecting circuit, a switch state signal feedback circuit, a switch control circuit and a device power source circuit. The controller mainly comprises a main switch controller, a short-distance wireless communication transceiving circuit, an auxiliary 1-type switch controller and an auxiliary 2-type switch controller. The economical operation control method is reasonable in design, low in manufacture cost, small in installation wiring, convenient and efficient to manage and capable of automatically controlling and monitoring the operation states of converters in a transformer group, greatly reduces electricity loss of the converters, improves energy utilization rate and is effective in energy saving and consumption reduction.
Description
One. technical field
The invention belongs to the electric power project engineering field, the scheduling of when relating to same user and using many transformers transformer being used, the input that namely changes each transformer in the transformer group cuts out running status, to reach the power supply that has both guaranteed that the user is enough, guarantee again the purpose of transformer electric energy total losses minimum.Specifically relate to a kind of transformer economic operation control method.
Two. background technology
The energy is the material base that the mankind depend on for existence, is the active force of social development.Along with expanding economy and growth in the living standard, the energy shortage problem shows day by day.Electric power is as a kind of secondary energy sources that make things convenient for high-quality, and for people's productive life has been brought many facilities, but the electric energy loss in the power supply process is the problem of power department headache always.In general, again to 3～5 transformation processes of user's intermediate demand, therefore the quantity of transformer is a lot of in the supply of electric power process from generating, power supply.The operation of transformer is not desirable zero loss state, and its course of work is accompanied by a large amount of electric energy losses; Studies show that the total power consumption of transformer accounts for 10% of energy output, transformer loss accounts for 50% of electric power system line loss, accounts for especially 60%～70% in the rural power service system." Energy Conservation Law of the People's Republic of China " explicitly points out: " energy-conservation is long-range strategy and policy of national development economy ".Therefore, the economical operation of research transformer, the electric energy loss that reduces transformer has important practical significance to electric power system.If we can change the operating state of transformer group, make it operate in the economic zone, so both guaranteed the power supply that the user is enough, guarantee that again the transformer electric energy loss is minimum.
Existing transformer economic operation control method generally only relates to two three-winding transformers, and most of algorithm is to generate control method with computer according to historical data, gives the staff transformer is carried out manual operation.Be 201120319492.2 such as application number, invention and created name is the utility application of " a kind of Economical operation system of multifunctional distribution transformer ", relate to the electric power system industry, control distribution transformer economical operation and safety monitoring, and relate to the industrial automatic control technology, be specially a kind of Economical operation system of multifunctional distribution transformer.Formed by 2 transformers, 2 three-phase power measurement and control units, main control unit, fire alarm and security alarm unit, communication interface, data storage and casings, main control unit connects respectively three-phase power measurement and control unit, fire alarm and security alarm unit by internal bus, communication interface and data storage form the collecting and distributing hierarchy of control of closed loop, and all devices except transformer all are encapsulated in the casing.Can satisfy the various operational modes of two transformer economic operations comprehensively, finish transformer operation automation control, alleviating dispatcher and operations staff's labour intensity, is system for distribution network of power ideal device energy-saving and cost-reducing, safe operation, greatly improves the economic benefit of operation of power networks.Of this sort technical scheme, can't realize automatically real-time control, can't realize the economical operation of many transformers, and because many transformers generally are installed in same room, various wiring are very many, cause a lot of potential safety hazards, can not fully play purpose energy-saving and cost-reducing, the highly effective and safe management.The transformer economic operation control method of therefore, in real time, automatically control, remote monitoring, succinct wiring, many transformers be current working control method in the urgent need to.
Three. summary of the invention
The objective of the invention is to design a kind of transformer economic operation control method, so as in real time, each transformer working in the control transformer group automatically, under the prerequisite that guarantees normal operation, farthest reduce the transformer electric energy loss.
The objective of the invention is to reach like this: a kind of transformer economic operation control method, it is characterized by: mainly comprise controller, with controller, the monitoring backstage, device receives transtation mission circuit with the long distance communication signal that power circuit links to each other, receive the monitoring backstage that transtation mission circuit links to each other with long distance communication signal, with controller, the transformer load parameter acquisition circuit that device links to each other with transformer group with power circuit, with controller, the switch state signal feedback circuit that device links to each other with power circuit and transformer switch group, with controller, the ON-OFF control circuit that device links to each other with power circuit and transformer switch group, with controller, long distance communication signal receives transtation mission circuit, transformer load parameter acquisition circuit, the device power circuit that the switch state signal feedback circuit links to each other with ON-OFF control circuit, described controller mainly comprises the main switch controller, the short-distance wireless communication signal that links to each other with the main switch controller receives transtation mission circuit, receive auxiliary 1 type on-off controller and the auxiliary 2 type on-off controllers that transtation mission circuit links to each other with the short-distance wireless communication signal respectively.
Described controller is received transtation mission circuit and is consisted of by main switch controller and auxiliary 1 type on-off controller, auxiliary 2 type on-off controllers, short-distance wireless communication signal.
Described main switch controller, function is for receiving communicating by letter of transtation mission circuit realization and monitoring backstage by long distance communication signal, the management of realization system, parameter according to each transformer that samples, calculate by a kind of transformer economic operation control method, draw the control result, control the work of this road transformer load parameter acquisition circuit and ON-OFF control circuit, the signal of sampling switch status signal feedback circuit feedback, realize communicating by letter by the auxiliary 1 type on-off controller of short-range wireless communication module and control and auxiliary 2 type on-off controllers, realize control and sampling functions.
Described auxiliary 1 type on-off controller, the input of the wherein transformer of control except main transformer or cut out, receive the order of main switch controller, and according to ON-OFF control circuit corresponding to order this transformer of control, give master controller with this transformer load parameter acquisition parameter and switch state signal.
Described auxiliary 2 type on-off controllers, the input of control interconnection switch or cut out receives the order of main switch controller, according to the ON-OFF control circuit of this interconnection switch of order control, gives master controller with switch state signal.
Described short-distance wireless communication signal receives transtation mission circuit, realizes the avenues of communication between main switch controller, auxiliary 1 type on-off controller, auxiliary 2 each circuit of type on-off controller.
Described long distance communication signal receives transtation mission circuit, realizes the communication between main switch controller and the monitoring backstage.
Described transformer load parameter acquisition circuit, realization gathers voltage, electric current, power factor, active power, each parameter of reactive power of transformer output loading, to supply with controller, guarantees the real time execution of controller algorithm.
Described ON-OFF control circuit is to realize the circuit of each switch motion of controller control transformer.
Described switch state signal feedback circuit is that state feedback with each switch of transformer is to controller, ensureing the accurate execution of control command, and the fault detect of switches set circuit.
Described monitoring backstage is exactly to receive transtation mission circuit by long distance communication signal to obtain the information of each switch of control transformer from controller, makes things convenient for the staff long-range the scene to be monitored, arrange and operated.
Described device power circuit, supply controller, long distance communication signal receive the operating voltage of transtation mission circuit, transformer load parameter acquisition circuit, switch state signal feedback circuit and all circuit of ON-OFF control circuit.
The control device operational factor sends into by short-distance wireless communication signal reception sending module by wireless short-distance PDA or the backstage is sent into or directly inputted by connecing key at main switch controller or auxiliary switch controller by long distance communication signal reception transtation mission circuit.
The control parameter is stored in the controller, uses during operation, and external device (ED) also can receive transtation mission circuit receiving system running state parameter by communication signal, in order to understand the device running status.
When the load power consumption not simultaneously, the operating state of automatic switchover transformer group makes it operate in the operating state of loss electric energy minimum.
Before the switch closure, judge switch ends voltage, as occur unusually, then not closed, and information returned.
Adopt the present invention of above measure, reasonable in design, cost is low, the installation wiring is few, convenient management is efficient, can automatically control and monitor the running status of each transformer in the transformer group, farthest reduces the transformer electric energy loss, improving the utilance of the energy, is a kind of energy-saving and cost-reducing effective ways.
The invention will be further described in conjunction with the accompanying drawings and embodiments again for the below.
Four. description of drawings
Accompanying drawing 2 is installation winding diagrams of the embodiment of the invention;
Accompanying drawing 3 is mounting circuit block diagrams of embodiments of the invention;
Accompanying drawing 4, accompanying drawing 5, accompanying drawing 6, accompanying drawing 7 and accompanying drawing 8 are electrical schematic diagrams of the embodiment of the invention.
Five. embodiment
The present invention is directed to the larger problem of transformer electric energy loss, the method that proposes is to enter an intelligence controlling device in the transformer load termination, this device can be according to the size of bearing power, the input of each transformer cuts out state in the automatic switchover transformer group, in the situation that satisfies user's power requirement, can farthest reduce the total electric energy loss of transformer.The method that the design proposes is to access a series of load parameter collections and switch controlling device at each transformer output, controller is crossed corresponding transformer economic operation algorithm with its data communication device that collects, and can control respective switch according to the difference of bearing power and make transformer group be operated in optimum state.In the little use of power consumption, only need to use low-loss transformer-supplied, when power consumption is large, just use jumbo transformer-supplied, when power consumption is larger, just use a plurality of transformer-supplied.The power supply that so both can guarantee the user can also reduce the transformer electric energy loss to greatest extent.
Transformer economic operation control method of the present invention makes transformer operate in the economic zone as far as possible; Apparatus structure of the present invention is mainly: main switch controller, auxiliary 1 type on-off controller, auxiliary 2 type on-off controllers, short-distance wireless communication signal receive transtation mission circuit, long distance communication signal receives transtation mission circuit, transformer load parameter acquisition circuit, ON-OFF control circuit, switch state signal feedback circuit etc.Main switch controller, auxiliary 1 type on-off controller, auxiliary 2 type on-off controllers can adopt various single-chip microcomputer or DSP, it is the control section of whole device, its effect is that management devices moves by control method, it is the operating state of control transformer group, according to load parameter, check whether transformer operates in the economic zone, if not, then need to change the operating state of transformer group, make it be operated in the economic zone.Because this device is real-time detection, can detect in real time the size of load power consumption, the operating state of control switch, the operating state of switching transformer group in real time, but for fear of switching transformer group excessively frequently, therefore except stipulating in time the switching interval time, buffering area is set spatially also.Simultaneously, this device can also detect unstable other abnormal conditions such as grade of load terminal voltage.
The main switch controller is the core of transformer economic operation control algolithm, mainly contains four functions.One, by long distance communication signal receive transtation mission circuit (such as GPRS or CDMA module) realize with the backstage communicate by letter the management of realization system; Two, according to the parameter of each transformer that samples, calculate by a kind of transformer economic operation control method, draw the control result; Three, control the work of this road transformer load parameter acquisition circuit and ON-OFF control circuit, the signal of sampling switch status signal feedback circuit feedback; Four, realize communicating by letter by the auxiliary 1 type on-off controller of short-range wireless communication module and control and auxiliary 2 type on-off controllers, realize control and sampling functions.
Auxiliary 1 type on-off controller, the input of the wherein transformer of control except main transformer or cut out, its quantity is that the number of units of transformer subtracts one, the calculating of not responsible algorithm.Each receives the order of main switch controller, and controls ON-OFF control circuit corresponding to this transformer and give master controller with this transformer load parameter acquisition parameter and switch state signal according to order.
Auxiliary 2 type on-off controllers, the input of control interconnection switch or cut out, its quantity is that the number of units of transformer subtracts one, the calculating of not responsible algorithm.Each receives the order of main switch controller, and gives master controller according to the ON-OFF control circuit of this interconnection switch of order control and with switch state signal.
Described short-distance wireless communication signal receives transtation mission circuit, it is the avenues of communication between described main switch controller, auxiliary 1 type on-off controller, auxiliary 2 each circuit of type on-off controller, all controllers are realized connection wireless between each module all with 1, are two-way transmission.The communication protocol that uses is the communication protocol of national standard, such as the electronic electric energy meter communication protocol.Guarantee the data communication between main switch controller and auxiliary 1 type on-off controller, the auxiliary 2 type on-off controllers; Controller obtains the data-signal of other circuit, also can make other circuit receive the command signal of controller.The short-distance wireless communication signal receives transtation mission circuit and also has the handheld device communication function with PDA etc., wireless change control device parameter.Adopted the mode of short-distance wireless communication can greatly reduce the complexity of wiring, made circuit safer.
Long distance communication signal reception transtation mission circuit is the communication between main switch controller and the monitoring backstage, and the communication protocol of use is the stipulations of national standard, such as electricity load management terminal, distribution transformer monitoring automatization terminal uplink communication stipulations etc.Transformer economical running control system not only can move automatically, and the staff can also see by the backstage running status of transformer, and under special circumstances, the manual control transformer economical running control system.
Transformer load parameter acquisition circuit is the voltage that gathers the transformer output loading, electric current, power factor, active power, reactive power etc., supplies with controller, guarantees the real time execution of controller algorithm.
ON-OFF control circuit is the circuit of each switch motion of controller control transformer.
The switch state signal feedback circuit is that namely closure state feeds back to controller with the state of each switch of transformer, with the accurate execution of guarantee control command, and the fault detect of switches set circuit.
The monitoring backstage is exactly that PC (such as common computer) is loaded onto the transformer economic operation software environment, and access network (such as local area network (LAN), wide area network) can use.The monitoring backstage is the information of obtaining each switch of control transformer from master controller, state and all other important indicators thereof of on computers visual demonstration transformer operation, making things convenient for that the staff is long-range on computers to be monitored, arrange and operate the scene, is a kind of Real Time Monitoring mode.
Accompanying drawing 2 has provided the installation winding diagram of embodiments of the invention, it wherein is the situation of three transformers, in fact total number of units of transformer can not limit, the main switch controller only has one, the number of auxiliary 1 type on-off controller and auxiliary 2 type on-off controllers in the light of actual conditions becomes the total number of units of transformer and subtracts one, increases simultaneously ON-OFF control circuit corresponding to controller, switching signal feedback circuit, data acquisition circuit.The main switch controller is installed on transformer 1 limit, is responsible for monitoring transformer 1; Auxiliary 1 type on-off controller 1 is installed on transformer 2 limits, is responsible for monitoring transformer 2; Auxiliary 1 type on-off controller 2 is installed on transformer 3 limits, is responsible for monitoring transformer 3; Auxiliary 2 type on-off controllers 1 are installed on interconnection switch 1 limit, are responsible for control interconnection switch 1; Auxiliary 2 type on-off controllers 2 are installed on interconnection switch 2 limits, are responsible for control interconnection switch 2.Do not have wiring between each on-off controller, use short-distance wireless communication, do not have wiring between main switch controller and the backstage, use long distance wireless communication.
Accompanying drawing 3 has provided the mounting circuit block diagram of embodiments of the invention, the situation when being three transformers, and corresponding to situation shown in the accompanying drawing 2, with reference to the accompanying drawings 3.The present invention mainly comprises:
The main switch controller that is connected with auxiliary 1 type on-off controller 1, auxiliary 1 type on-off controller 2, auxiliary 2 type on-off controllers 1, auxiliary 2 type on-off controllers 2, transformer 1 high-voltage switch gear signal feedback circuit, transformer 1 low tension switch signal feedback circuit, transformer 1 high-voltage switch gear control circuit, transformer 1 low voltage switch control circuit, transformer data acquisition circuit, monitoring backstage;
The auxiliary 1 type on-off controller 1 that is connected with main switch controller, transformer 2 high-voltage switch gear control circuits, transformer 2 low voltage switch control circuits, transformer 2 high-voltage switch gear signal feedback circuits, transformer 2 low tension switch signal feedback circuits, transformer 2 data acquisition circuits;
The auxiliary 1 type on-off controller 2 that is connected with main switch controller, transformer 3 high-voltage switch gear control circuits, transformer 3 low voltage switch control circuits, transformer 3 high-voltage switch gear signal feedback circuits, transformer 3 low tension switch signal feedback circuits, transformer 3 data acquisition circuits;
The auxiliary 2 type on-off controllers 1 that are connected with main switch controller, interconnection switch 1 control circuit, interconnection switch 1 signal feedback circuit;
The auxiliary 2 type on-off controllers 2 that are connected with main switch controller, interconnection switch 2 control circuits, interconnection switch 2 signal feedback circuits;
The transformer 1 high-voltage switch gear control circuit that is connected with main switch controller, transformer 1 high-voltage switch gear; Transformer 1 low voltage switch control circuit that is connected with main switch controller, transformer 1 low tension switch; The transformer 1 high-voltage switch gear signal feedback circuit that is connected with main switch controller, transformer 1 high-voltage switch gear; The transformer 1 low tension switch signal feedback circuit that is connected with main switch controller, transformer 1 low tension switch;
The transformer 2 high-voltage switch gear control circuits that are connected with auxiliary 1 type on-off controller 1, transformer 2 high-voltage switch gears; Transformer 2 low voltage switch control circuits that are connected with auxiliary 1 type on-off controller 1, transformer 2 low tension switches; The transformer 2 high-voltage switch gear signal feedback circuits that are connected with auxiliary 1 type on-off controller 1, transformer 2 high-voltage switch gears; The transformer 2 low tension switch signal feedback circuits that are connected with auxiliary 1 type on-off controller 1, transformer 2 low tension switches;
The transformer 3 high-voltage switch gear control circuits that are connected with auxiliary 1 type on-off controller 2, transformer 3 high-voltage switch gears; Transformer 3 low voltage switch control circuits that are connected with auxiliary 1 type on-off controller 2, transformer 3 low tension switches; The transformer 3 high-voltage switch gear signal feedback circuits that are connected with auxiliary 1 type on-off controller 2, transformer 3 high-voltage switch gears; The transformer 3 low tension switch signal feedback circuits that are connected with auxiliary 1 type on-off controller 2, transformer 3 low tension switches;
Transformer 1 high-voltage switch gear that is connected with transformer 1 high-voltage switch gear signal feedback circuit, transformer 1 high-voltage switch gear control circuit; Transformer 1 low tension switch that is connected with transformer 1 low tension switch signal feedback circuit, transformer 1 low voltage switch control circuit;
Transformer 2 high-voltage switch gears that are connected with transformer 2 high-voltage switch gear signal feedback circuits, transformer 2 high-voltage switch gear control circuits; Transformer 2 low tension switches that are connected with transformer 2 low tension switch signal feedback circuits, transformer 2 low voltage switch control circuits;
Transformer 3 high-voltage switch gears that are connected with transformer 3 high-voltage switch gear signal feedback circuits, transformer 3 high-voltage switch gear control circuits; Transformer 3 low tension switches that are connected with transformer 3 low tension switch signal feedback circuits, transformer 3 low voltage switch control circuits;
The interconnection switch 1 that is connected with interconnection switch 1 signal feedback circuit, interconnection switch 1 control circuit; The interconnection switch 2 that is connected with interconnection switch 2 signal feedback circuits, interconnection switch 2 control circuits;
The monitoring backstage is used for the staff and checks running status and the operational factor of transformer group, and under special circumstances master controller is said the word, and carries out manual operation.
The main switch controller is used for the auxiliary 1 type on-off controller 1 of control, auxiliary 1 type on-off controller 2, auxiliary 2 type on-off controllers 1, auxiliary 2 type on-off controllers 2, say the word with the data that obtain transformer 1 data acquisition circuit and to transformer 1 high-voltage switch gear control circuit, the control of transformer 1 low voltage switch control circuit switch, for the operating state of the load parameter and the control transformer 1 that obtain transformer 1.
Auxiliary 1 type on-off controller 1, auxiliary 1 type on-off controller, 2 acceptor's on-off controllers control, be used for obtaining the data of transformer 2 data acquisition circuits, transformer 3 data acquisition circuits, and send out the switch control command for transformer 2 high-voltage switch gear control circuits, transformer 2 low voltage switch control circuits, transformer 3 high-voltage switch gear control circuits, transformer 3 low voltage switch control circuits, be used for obtaining the operating state of the bearing power of transformer 2, transformer 3 and control transformer 2, transformer 3.
Auxiliary 2 type on-off controllers 1, auxiliary 2 type on-off controllers, 2 acceptor's on-off controllers control send out the switch control command for interconnection switch 1 control circuit, interconnection switch 2 control circuits, are used for paired running between the control transformer.
Adopt short-distance wireless communication to be connected between each controller.Communicating by letter with main switch controller employing GPRS and be connected in the monitoring backstage, is used for obtaining the operating state of current control system, and same staff also can send order to control system, and realization is to the integrated management of transformer.
The form that communication signal receives transtation mission circuit can have various ways, such as RS-232, RS-485, network, GPRS, CDMA, short-distance wireless communication, carrier wave, the interface mode such as infrared, function all is the communications between implement device and the external equipment, external data can be crossed data communication device its feeder, do the reference of device operation, device also can be given external device (ED) with data, so that external device (ED) is understood device operational factor and state.
Accompanying drawing 4, accompanying drawing 5, accompanying drawing 6, accompanying drawing 7 and accompanying drawing 8 are circuit diagrams of main switch controller, are received transtation mission circuit and are formed by main switch controller and corresponding ON-OFF control circuit, switch state signal feedback circuit, transformer load parameter acquisition circuit and short-distance wireless communication signal reception transtation mission circuit, long distance communication signal.
Auxiliary 1 type ON-OFF control circuit is to remove second serial port DSR, DTR, RxD1, the TxD1 of accompanying drawing 4 on the basis of main switch control circuit, receives transtation mission circuit by auxiliary 1 type on-off controller and corresponding ON-OFF control circuit, switch state signal feedback circuit, transformer load parameter acquisition circuit and short-distance wireless communication signal and forms.
Auxiliary 2 type ON-OFF control circuit are the U1:ATT7022E computation chip circuit that remove second serial port DSR, DTR, RxD1, TxD1 of accompanying drawing 4 on the basis of main switch control circuit and remove accompanying drawing 7, by auxiliary 2 type on-off controllers and corresponding ON-OFF control circuit thereof, the switch state signal feedback circuit forms and short-distance wireless communication signal reception transtation mission circuit forms.
Integrated circuit U1 in the accompanying drawing 4 is single-chip microcomputer STM32F103ZE, is the core of on-off controller, and the work of other circuit is coordinated in control, and this chip internal has FLASH, second interruption and timer, the reading out data that can regularly fix a point and transmission order.
First RS232 serial port in the accompanying drawing 4 is used for short-distance wireless communication, uses identification number to be RxD0, and TxD0 directly receives transtation mission circuit with the short-distance wireless communication signal and links to each other; Second RS232 serial port in the accompanying drawing 4 is used for long haul communication, uses identification number to be RxD1, TxD1, and DSR, DTR directly receives transtation mission circuit with long distance communication signal and links to each other;
Integrated circuit U4 in the accompanying drawing 4 is monitoring/reset chip, and model is IMP708SESA, is used for power management, prevents data corruption.
In the accompanying drawing 4, STM32 single-chip microcomputer U1 sends into by the isolation of the optocoupler signal isolator NEC2501 in the accompanying drawing 7 with the state of four switches of FHGPIO0-FHGPIO3 pin senses, external switch state, forms the switch state signal feedback circuit.
High-capacity FLASH chip in the accompanying drawing 5 is NAND512W3A, and capacity reaches the 64M byte, and as the data storage, SRAM uses FRAM (ferroelectric) to be FM28V100, and capacity is the 128K byte, as a day data buffer-stored.
In the accompanying drawing 5, the element that links to each other with debugging interface J1 consists of the ARM debug i/f circuit jointly.
Integrated circuit U2 in the accompanying drawing 6 (high withstand voltage, large electric current Darlington array ULN2003) and integrated circuit U4 (D flip-flop 74HC273), four single-pole double throw relay FHK1-FHK4, form 4 way switch control circuits, on-off controller is only used 1 to 2 way switch control circuit wherein, other for subsequent use.
RX-8025TSA is clock chip in the accompanying drawing 6, with single chip communication I2C bus, for on-off controller provides correct time.
The element that links to each other with triode N1 and loudspeaker LS1 in the accompanying drawing 6, the warning circuit of formation is realized sound alarm function, the control pin is FMQC; Resistance R 7, light-emitting diode D1, the normal operation of common formation indicating circuit, the control pin is RUNL; Resistance R 18, light-emitting diode D2, common formation protection action indicating circuit, the control pin is BJ; Triode N2, triode N3, resistance R 6, resistance R 11, resistance R 12 consist of the liquid crystal display screen backlight drive circuit, and the control pin is LCDLC.
In the accompanying drawing 7, use special-purpose 192*64 lattice module YXD-19264 to show the required Presentation Function of whole systems, communicating by letter between module and the single-chip microcomputer used parallel communication bus.
In the accompanying drawing 7, use the special metering IC ATT7022E and No. three voltage transformers and No. three current transformers to consist of the transformer load signal deteching circuit.Computation chip ATT7022E can be with the three-phase voltage in the three-phase and four-line electric power system, and three-phase current is inputted through overvoltage, current transformer, direct metered voltage value, and current value, active power, reactive power, power factors etc. are with the single chip communication spi bus.
In the accompanying drawing 8,3 direct voltages of power supply output, one is 3.3V, and one is 5.0V, and one is 12V, supplies with as the power supply of this device.
The main switch controller is by the single-chip microcomputer STM32F103ZE among Fig. 4,8M crystal oscillator X1, power monitoring chip IMP708SESA, 74HC00, resistance R 2, resistance R 3, resistance R 4, resistance R 5, resistance R 7, resistance R 14, resistance R 15, resistance R 21, resistance R 22, resistance R 23, electrolyte capacitance E1, electrolyte capacitance E2, electrolyte capacitance E3, electrolyte capacitance E4, capacitor C 4, capacitor C 7, capacitor C 9, capacitor C 10, capacitor C 11, capacitor C 12, capacitor C 13, capacitor C 14, capacitor C 15, capacitor C 16, capacitor C 17, capacitor C 18, capacitor C 19, capacitor C 20, capacitor C 23, capacitor C 24, capacitor C 25, capacitor C 26, capacitor C 28, inductance L 1, inductance L 2 and first serial port RxD0, TxD0, second serial port DSR, DTR, RxD1, TxD1 forms.
Auxiliary 1 type on-off controller and auxiliary 2 type on-off controllers are by the single-chip microcomputer STM32F103ZE among Fig. 4,8M crystal oscillator X1, power monitoring chip IMP708SESA, 74HC00, resistance R 2, resistance R 3, resistance R 4, resistance R 5, resistance R 7, resistance R 14, resistance R 15, resistance R 21, resistance R 22, resistance R 23, electrolyte capacitance E1, electrolyte capacitance E2, electrolyte capacitance E3, electrolyte capacitance E4, capacitor C 4, capacitor C 7, capacitor C 9, capacitor C 10, capacitor C 11, capacitor C 12, capacitor C 13, capacitor C 14, capacitor C 15, capacitor C 16, capacitor C 17, capacitor C 18, capacitor C 19, capacitor C 20, capacitor C 23, capacitor C 24, capacitor C 25, capacitor C 26, capacitor C 28, inductance L 1, inductance L 2 and first serial port RxD0, TxD0 forms.
ON-OFF control circuit is by high withstand voltage, the large electric current Darlington array ULN2003 among Fig. 6, D flip-flop 74HC273, and relay FHK1, relay FHK2, relay FHK3, relay FHK4,74HC00, capacitor C 3, resistance R 13, resistance R 14 form.
The switch state signal feedback circuit is by NEC2501 optocoupler signal isolator N5, N6, N7, N8 among Fig. 7, and resistance R 39, resistance R 40, resistance R 41, resistance R 42, diode D1, diode D2, diode D3, diode D4 form.
Transformer load parameter acquisition circuit is by the special metering IC ATT7022E in the accompanying drawing 7 and phase limit circuit, voltage transformer pt A1, voltage transformer pt A2, voltage transformer pt A3, current transformer TIA2, current transformer TIA3, current transformer TIA4, resistance R A1, resistance R B1, resistance R C1, resistance R 4, resistance R 5, resistance R 6, resistance R 7, resistance R 8, resistance R 9, resistance R 10, resistance R 16, resistance R 17, resistance R 18, resistance R 19, resistance R 20, resistance R 21, resistance R 22, resistance R 23, resistance R 24, resistance R 25, resistance R 31, resistance R 32, resistance R 33, resistance R 34, resistance R 35, resistance R 36, resistance R 37, resistance R 38, capacitor C 1, capacitor C 2, capacitor C 3, capacitor C 4, capacitor C 5, capacitor C 6, capacitor C 7, capacitor C 8, capacitor C 9, capacitor C 10, capacitor C 11, capacitor C 14, capacitor C 36, capacitor C 37, capacitor C 38, capacitor C 40, capacitor C 41, capacitor C 42, capacitor C 43, capacitor C 49, inductance L 1, crystal oscillator Y1 forms.
It is to be connected among Fig. 4 the short-distance wireless communication integration module of RxD0, TxD0 on the serial port 1 that the short-distance wireless communication signal receives transtation mission circuit.
It is to be connected among Fig. 4 the long distance communication integration module of DSR, DTR, RxD1, TxD1 on the serial port 2 that long distance communication signal receives transtation mission circuit.
It is very simple that this device is installed: this device of access between transformer output and user load, set economic running parameters according to the nameplate of transformer, and direct-electrifying can allow this device move by a kind of transformer economic operation control method.
Claims (6)
1. transformer economic operation control method, it is characterized by: mainly comprise controller, with controller, the monitoring backstage, device receives transtation mission circuit with the long distance communication signal that power circuit links to each other, receive the monitoring backstage that transtation mission circuit links to each other with long distance communication signal, with controller, the transformer load parameter acquisition circuit that device links to each other with transformer group with power circuit, with controller, the switch state signal feedback circuit that device links to each other with power circuit and transformer switch group, with controller, the ON-OFF control circuit that device links to each other with power circuit and transformer switch group, with controller, long distance communication signal receives transtation mission circuit, transformer load parameter acquisition circuit, the device power circuit that the switch state signal feedback circuit links to each other with ON-OFF control circuit, described controller mainly comprises the main switch controller, the short-distance wireless communication signal that links to each other with the main switch controller receives transtation mission circuit, receive auxiliary 1 type on-off controller and the auxiliary 2 type on-off controllers that transtation mission circuit links to each other with the short-distance wireless communication signal respectively.
2. transformer economic operation control method according to claim 1, it is characterized by: described main switch controller, function is for receiving communicating by letter of transtation mission circuit realization and monitoring backstage by long distance communication signal, the management of realization system, parameter according to each transformer that samples, calculate by a kind of transformer economic operation control method, draw the control result, control the work of this road transformer load parameter acquisition circuit and ON-OFF control circuit, the signal of sampling switch status signal feedback circuit feedback, realize communicating by letter by the auxiliary 1 type on-off controller of short-range wireless communication module and control and auxiliary 2 type on-off controllers, realize control and sampling functions; Described auxiliary 1 type on-off controller, the input of the wherein transformer of control except main transformer or cut out, receive the order of main switch controller, and according to ON-OFF control circuit corresponding to order this transformer of control, give master controller with this transformer load parameter acquisition parameter and switch state signal; Described auxiliary 2 type on-off controllers, the input of control interconnection switch or cut out receives the order of main switch controller, according to the ON-OFF control circuit of this interconnection switch of order control, gives master controller with switch state signal; Described short-distance wireless communication signal receives transtation mission circuit, realizes the avenues of communication between main switch controller, auxiliary 1 type on-off controller, auxiliary 2 each circuit of type on-off controller; Described long distance communication signal receives transtation mission circuit, realizes the communication between main switch controller and the monitoring backstage; Described transformer load parameter acquisition circuit, realization gathers voltage, electric current, power factor, active power, each parameter of reactive power of transformer output loading, to supply with controller, guarantees the real time execution of controller algorithm; Described ON-OFF control circuit is to realize the circuit of each switch motion of controller control transformer; Described switch state signal feedback circuit is that state feedback with each switch of transformer is to controller, ensureing the accurate execution of control command, and the fault detect of switches set circuit; Described monitoring backstage is exactly the information of obtaining each switch of control transformer from controller, makes things convenient for the staff long-range the scene to be monitored, arrange and operated; Described device power circuit, supply controller, long distance communication signal receive the operating voltage of transtation mission circuit, transformer load parameter acquisition circuit, switch state signal feedback circuit and all circuit of ON-OFF control circuit.
3. transformer economic operation control method according to claim 1 is characterized by: the control device operational factor receives by the short-distance wireless communication signal by wireless short-distance PDA that sending module is sent into or the backstage is sent into or directly inputted by connecing key at main switch controller or auxiliary switch controller by long distance communication signal reception transtation mission circuit.
4. transformer economic operation control method according to claim 1, it is characterized by: the control parameter is stored in the controller, use during operation, external device (ED) also can receive transtation mission circuit receiving system running state parameter by communication signal, in order to understand the device running status.
5. transformer economic operation control method according to claim 1 is characterized by: when the load power consumption not simultaneously, the operating state of automatic switchover transformer group makes it operate in the operating state of loss electric energy minimum.
6. transformer economic operation control method according to claim 1 is characterized by: before the switch closure, judge switch ends voltage, as occur unusually, then not closed, and information returned.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103068882A CN102904338A (en) | 2012-08-16 | 2012-08-16 | Economical operation control method of transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103068882A CN102904338A (en) | 2012-08-16 | 2012-08-16 | Economical operation control method of transformer |
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| CN102904338A true CN102904338A (en) | 2013-01-30 |
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| CN2012103068882A Pending CN102904338A (en) | 2012-08-16 | 2012-08-16 | Economical operation control method of transformer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103701221A (en) * | 2014-01-03 | 2014-04-02 | 常州帕斯菲克自动化技术股份有限公司 | Intelligent measurement and control unit of box transformer |
| CN105656050A (en) * | 2016-03-21 | 2016-06-08 | 南京丰和自动化科技有限公司 | Intelligent energy storage and power distribution system |
| CN107069796A (en) * | 2016-12-27 | 2017-08-18 | 国网江苏省电力公司邳州市供电公司 | A kind of transformer economic operation autocontrol method |
| CN108599139A (en) * | 2018-01-03 | 2018-09-28 | 常熟开关制造有限公司(原常熟开关厂） | Control method for electric installation and a kind of for electric installation |
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Application publication date: 20130130 |