CN207819558U - A kind of low-tension unit intelligent controller - Google Patents
A kind of low-tension unit intelligent controller Download PDFInfo
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- CN207819558U CN207819558U CN201721624966.8U CN201721624966U CN207819558U CN 207819558 U CN207819558 U CN 207819558U CN 201721624966 U CN201721624966 U CN 201721624966U CN 207819558 U CN207819558 U CN 207819558U
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Abstract
The utility model discloses a kind of low-tension unit intelligent controllers; it is characterized in that; including CPU card, feature card and bus backplane; the feature card includes same period plug-in unit, protective plug-in unit and excitation plug-in unit; the CPU card, the same period plug-in unit, the protective plug-in unit and the excitation plug-in unit respectively connect the bus backplane, and the same period plug-in unit, the protective plug-in unit and the excitation plug-in unit include DSP operation processing unit.Same period plug-in unit, protective plug-in unit, excitation plug-in unit can independent operating, can complete its Core Feature in cpu fault, improve the reliability of device entirety, while be integrated in controller in the form of plug-in unit again, be conducive to device maintenance.
Description
Technical field
The utility model is related to a kind of low-tension unit intelligent controllers, belong to low-tension unit control system technical field.
Background technology
The low-tension unit control system that Vehicles Collected from Market provides underaction in terms of the configuration of unit automatic control flow chart, it is right
It is not convenient enough in the operation and maintenance of user.
Low-tension unit integral control system is the core of low-tension unit power station automation system, and the object of control covers electricity
Station owner wants first and second system equipment, including monitoring, protection, excitation, breaker, governor and other auxiliary control equipment.Low-tension unit
Intelligent controller is the core equipment of low-tension unit integral control system, has data sampling and processing, communication, monitoring etc. more
Kind function, the automatic control flow chart of unit is also to be realized by intelligent controller.
There are two types of current existing schemes：One is similar to conventional using PLC as the water power of the system integration formula of core
It stands monitoring system, is aided with several discrete functional devices：Protective device, synchronous device and excitation unit, the side programmed by PLC
Method realizes automatically controlling for unit, and control flow is required by equipment debugging personnel according to designing institute, user demand and scene are real
Border situation is write to design, and can be changed at the scene；Another kind is the intelligent controller using integrated design, is controlled with one
Device realize necessary for monitoring institute it is functional, write a set of control flow in advance and be solidificated in the CPU of controller, user according to
Design requirement accesses required signal and circuit, and controller can control unit by preset flow.
The first above-mentioned scheme can formulate different control flows, when live item according to Different field actual conditions
Also PLC program can be changed when part changes to adapt to change.Power station using low-tension unit is mostly rural small hydropower, due to
Structure is similar to the monitoring system of traditional integrated form, and secondary circuit is complicated, and discrete device is more, is unfavorable for safeguarding.
Above-mentioned second scheme, due to using the design of integral type completely, a link of device goes wrong will
The normal operation of whole device is influenced, reliability is bad.
Utility model content
Technical problem to be solved in the utility model is to overcome the deficiencies of existing technologies, and provides a kind of low-tension unit intelligence
Controller, using integrated structure design, internal each feature card is mutual indepedent, ensure that low-tension unit control system not
There is flexibility when being run under the conditions of, and do not reduce the security requirement to controlling process.
In order to achieve the above objectives, the utility model provides a kind of low-tension unit intelligent controller, including CPU card, function
Plug-in unit and bus backplane, the feature card include same period plug-in unit, protective plug-in unit and excitation plug-in unit, the CPU card, described same
Phase plug-in unit, the protective plug-in unit and the excitation plug-in unit respectively connect the bus backplane, the same period plug-in unit, the protection
Plug-in unit and the excitation plug-in unit include DSP operation processing unit.
Preferentially, the same period plug-in unit includes clock circuit, reset circuit, hardware outputs circuit, DSP operation handles list
Member, CAN communication unit and exchange acquisition interface, the clock circuit, the reset circuit, the hardware output circuit, described
CAN communication unit is electrically connected the DSP operation processing unit with the acquisition interface that exchanges, the CAN communication unit and
The exchange acquisition interface is electrically connected the bus backplane.
Preferentially, the protective plug-in unit includes that hardware open entry loop, hardware output circuit, DSP operation processing unit, CAN
Communication unit outputs circuit, the CAN communication unit with A/D collecting units, the hardware open entry loop, the hardware is exchanged
It is electrically connected DSP operation processing unit with the A/D collecting units that exchange, the CAN communication unit is acquired with A/D is exchanged
Unit is electrically connected the bus backplane.
Preferentially, the excitation plug-in unit includes that hardware open entry loop, hardware output circuit, CAN communication unit, exchange A/D
Collecting unit and DSP operation processing unit, the hardware open entry loop, the hardware output circuit, the CAN communication unit,
The exchange A/D collecting units are separately connected the DSP operation processing unit；The DSP operation processing unit includes CPLD multiple
Miscellaneous programmable logic device, the CAN communication unit, the exchange A/D collecting units are electrically connected the bus backplane.
Preferentially, the same period plug-in unit, the protective plug-in unit and the excitation plug-in unit include for storing parameter and determining
The FLASH of value.
Preferentially, including host computer, the CPU card connect the host computer, and the CPU card includes R register.
Preferentially, including I/O plug-in units, the I/O plug-in units include open into plug-in unit, output plug-in unit, mould enters and temperature plug-in unit, hands over
Flow plug-in unit 1, exchange plug-in unit 2, it is described open into plug-in unit, it is described output plug-in unit, the mould enter with temperature plug-in unit, it is described exchange plug-in unit 1,
The exchange plug-in unit 2 is electrically connected the bus backplane.
Preferentially, including power insert, the power insert are electrically connected the bus backplane.
Preferentially, including liquid crystal display panel, the liquid crystal display panel are electrically connected the bus backplane.
Preferentially, the power insert is electrically connected the bus backplane.
The advantageous effect that the utility model is reached：
1. modification process parameter value is directly changed by man-machine interface, therefore user is not required to have higher professional technique water
It is flat, it modifies when necessary in the case where technical staff instructs also very easy, without producer technical staff to on-site maintenance.
2. the same period, protection, excitation need the of ac acquired to have overlapping, the same hardware acquisition channel, section are all shared
It saves hardware cost and space, three respectively handles after getting data, be independent of each other.
3. CPU is kept without power down, the store function of MMI is made full use of, simplifies hardware configuration, saves hardware cost.
4. process parameter can be issued by host computer, and the parameter of automatic renewing device storage inside so that remotely modifying stream
Cheng Gengwei is easy, more adapts to field condition.
5. same period plug-in unit, protective plug-in unit, excitation plug-in unit can independent operating, can complete its core in cpu fault
Heart function improves the reliability of device entirety, while is integrated in controller in the form of plug-in unit again, is conducive to device dimension
Shield.
6. more than the feature card common hardware acquisition channel for needing to acquire of ac, simplifies system structure, saves hard
Part cost.
7. all quantity of states of monitoring and the same period, protection, excitation data required for unit operation can be transferred through same people
Machine interface display avoids user that monitor area different on disk cabinet is being needed to check different measure and control device data, is more convenient for
Day-to-day operation is safeguarded.
Description of the drawings
Fig. 1 is the structure chart of the utility model；
Fig. 2 is the principles of the present invention figure；
Fig. 3 is the hardware connection figure of the utility model.
Specific implementation mode
The utility model is further described below in conjunction with the accompanying drawings, following embodiment is only used for clearly illustrating this
The technical solution of utility model, and the scope of protection of the utility model cannot be limited with this.
A kind of low-tension unit intelligent controller, including CPU card, feature card and bus backplane, the feature card packet
Include same period plug-in unit, protective plug-in unit and excitation plug-in unit, the CPU card, the same period plug-in unit, the protective plug-in unit and the excitation
Plug-in unit respectively connects the bus backplane, and the same period plug-in unit, the protective plug-in unit and the excitation plug-in unit include that DSP is transported
Calculate processing unit.
Further, the same period plug-in unit includes clock circuit, reset circuit, hardware outputs circuit, DSP operation handles list
Member, CAN communication unit and exchange acquisition interface, the clock circuit, the reset circuit, the hardware output circuit, described
CAN communication unit is electrically connected the DSP operation processing unit with the acquisition interface that exchanges, the CAN communication unit and
The exchange acquisition interface is electrically connected the bus backplane.
Further, the protective plug-in unit include hardware open entry loop, hardware output circuit, DSP operation processing unit,
CAN communication unit outputs circuit, the CAN communication list with A/D collecting units, the hardware open entry loop, the hardware is exchanged
First to be electrically connected DSP operation processing unit with the A/D collecting units that exchange, the CAN communication unit is adopted with A/D is exchanged
Collection unit is electrically connected the bus backplane.
Further, the excitation plug-in unit includes that hardware open entry loop, hardware output circuit, CAN communication unit, exchange A/
D collecting units and DSP operation processing unit, the hardware open entry loop, the hardware output circuit, the CAN communication unit,
The exchange A/D collecting units are separately connected the DSP operation processing unit；The DSP operation processing unit includes CPLD multiple
Miscellaneous programmable logic device, the CAN communication unit, the exchange A/D collecting units are electrically connected the bus backplane.
Further, including host computer, the CPU card connect the host computer.
Further, including host computer, the CPU card connect the host computer, and the CPU card includes R register.
Further, including I/O plug-in units, the I/O plug-in units include open into plug-in unit, output plug-in unit, mould enter with temperature plug-in unit,
Exchange plug-in unit 1, exchange plug-in unit 2, it is described open into plug-in unit, it is described output plug-in unit, the mould enter with temperature plug-in unit, described exchange plug-in unit
1, the exchange plug-in unit 2 is electrically connected the bus backplane.
Further, including power insert, the power insert are electrically connected the bus backplane.
Further, including liquid crystal display panel, the liquid crystal display panel are electrically connected the bus backplane.
Further, the power insert is electrically connected the bus backplane.
A kind of low-tension unit intelligent controller, as shown in Figure 1, device includes with lower part：
Liquid crystal display panel：Including liquid crystal display, button, arm processor and required hardware-in-the-loop.
Bus backplane：Each plug-in unit is connected to by way of carrying on the back and inserting in bus backplane, is interacted, is additionally provided with by bus
Liquid crystal display panel interface can power to liquid crystal display, and CPU is communicated by the interface and liquid crystal display.
Power insert：It powers to all plug-in units and liquid crystal display；
CPU card：It is interacted with other each plug-in units and liquid crystal display as device core, there is data monitoring, processing, communication
Function is able to carry out control flow, and provides an external communication serial ports and debugging serial ports；
I/O plug-in units：Enter plug-in unit, temperature plug-in unit, of ac input plug-in unit and on-off model output into plug-in unit, mould including opening
Plug-in unit；
Feature card：Including same period plug-in unit, protective plug-in unit, excitation function plug-in unit, corresponding function is respectively completed.
Each plug-in unit is all connected with each other by bus backplane, and power module powers to each module by bus backplane, CPU with it is each
I/O plug-in units and feature card complete data interaction by bus backplane.LCD Interface is additionally provided in bus backplane, CPU passes through
This interface is communicated with liquid crystal display, is provided data and is shown and receive the instruction that liquid crystal display issues.In addition, CPU is also equipped with external communication
With serial ports, for connecting debugging software and host computer.
Device CPU card is simple in structure, without power down keep function, open into, output, mould enters, the channel parameters of Temperature Quantity,
Unit nominal parameter, Temperature Quantity alarm and the requirements energy such as limit value, analog quantity range, PT and CT no-load voltage ratios, power adjustment parameter that trip
The parameter that enough power down are kept is not to be stored directly in CPU, and be stored in the FLASH of liquid crystal display MMI plates.On each device
Electric MMI plates all can initialization program of automatic running, the unit parameter wherein stored is issued to CPU automatically, CPU is received
Parameter is loaded to corresponding I/O plug-in units again after parameter, starts normal operation later.
The same period, protection, excitation plug-in unit are all configured with independent DSP and FLASH, and are returned equipped with respectively required input and output
Road.This three obtains AC sampling data by CAN nets from public exchange plug-in unit acquisition channel, for realizing respective function institute
Need the calculating carried out, additionally it is possible to be communicated by CAN bus and CPU card, above send respective definite value parameter, channel factor, friendship
Flow measured value, and receive the control command of CPU and be forwarded from definite value parameter, the channel factor of MMI plates.The same period, protection, excitation are inserted
Part can be run independently of CPU card, even if can not be communicated with CPU card, as long as the parameter definite value respectively stored is not lost,
Respective core missions can be normally completed, also can simply be instructed by respective hardware input and output channel reception.
CPU provides one group of word type（16）Register --- R register, a portion is dedicated for storage unit control
Process parameter processed.Process parameter can be downloaded to the memory block by liquid crystal display, and host computer also can be by external serial ports by process parameter
It is downloaded to the region.
Process parameter's value is typically stored in the memory of man-machine interface, and intelligent controller is under man-machine interface is automatic after the power is turned on
It carries in process parameter to CPU, can show later by the special page and modification process parameter and downloads.Current-carrying under host computer
It when journey parameter is to CPU, while can be 2 by specific register write, the mark of parameter is issued as host computer.Man-machine interface is read
It can will be updated preservation in memory that the process parameter stored in CPU uploads to man-machine interface after to the mark, be updated to
The register is reset after work(.
A set of automatic startup-shutdown flow is preset with flow chart programming in CPU, flow frame is fixed, and sequence of steps can not
Upset, but whether which part step executes, output mode, delay time, time in time limit etc. and controlled by variable.Work as stream
When journey goes to such step, reads the variable in corresponding R register and determine how process step executes.
1）Unit flow general frame is fixed, but which part step execute whether, output mode, delay time, time limit
Time etc. reads variable to control from register.
2）Process parameter is shown for modification with the special page on liquid crystal display, while being provided respectively in liquid crystal display program
The upper lower limit value of parameter.
3）Process parameter can be downloaded by host computer to CPU, and automatically updates the process parameter's value stored in MMI plates.
4）Same period plug-in unit, protective plug-in unit, excitation plug-in unit are respectively matched there are one DSP and corresponding hardware-in-the-loop, and are all matched
FLASH has been set for storing parameter and definite value.Three plug-in units are each responsible for the same period, protection, excitation function, can pass through CAN bus
With monitoring CPU communication data transmission and receive instruction, but capable of independently realizing for its Core Feature does not depend on monitoring CPU.
5）The same period, protection, excitation need the of ac acquired to have overlapping, all share the same hardware acquisition channel, section
It saves hardware cost and space, three respectively handles after getting data, be independent of each other.
6）CPU card obtains data by CAN nets from each I/O plug-in units, same period plug-in unit, protective plug-in unit, excitation plug-in unit, passes through
SPI interface is communicated with liquid crystal display MMI plates, and by treated, data include on liquid crystal display.Unit operation monitoring needed for open into,
It outputs, mould enters, temperature, of ac, same period measured value, definite value, protection measured value, definite value, channel factor, excitation measured value, definite value, channel
Coefficient can be shown by same liquid crystal display.Unit allocation life can be not only issued by the button operation on liquid crystal display panel
It enables, the parameter definite value of each I/O plug-in units, same period plug-in unit, protective plug-in unit, excitation plug-in unit can also be changed, correction channel coefficient is not necessarily to
Each plug-in unit is operated respectively.
7）CPU do not set power down keep memory block, open into, output, mould enters, the channel parameters of Temperature Quantity, unit nominal parameter,
Temperature Quantity alarm and tripping limit value, analog quantity range, PT and CT no-load voltage ratios, power adjustment parameter etc. are stored in MMI plates, on device
It is downloaded to CPU when electricity initialization and can guarantee CPU normal operations.Also can be changed by button operation liquid crystal display these parameters and under
It is loaded onto CPU, while updating the parameter value stored in MMI plates.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvement and deformations can also be made, these change
The scope of protection of the utility model is also should be regarded as into deformation.
Claims (10)
1. a kind of low-tension unit intelligent controller, which is characterized in that including CPU card, feature card and bus backplane, the work(
Can plug-in unit include same period plug-in unit, protective plug-in unit and excitation plug-in unit, the CPU card, the same period plug-in unit, the protective plug-in unit and
The excitation plug-in unit respectively connects the bus backplane, and the same period plug-in unit, the protective plug-in unit and the excitation plug-in unit are equal
Including DSP operation processing unit.
2. a kind of low-tension unit intelligent controller according to claim 1, which is characterized in that when the same period plug-in unit includes
Clock circuit, reset circuit, hardware output circuit, DSP operation processing unit, CAN communication unit and exchange acquisition interface, when described
Clock circuit, the reset circuit, the hardware output circuit, the CAN communication unit exchanges acquisition interface electricity respectively with described
The DSP operation processing unit is connected, the CAN communication unit is electrically connected the bus back of the body with the acquisition interface that exchanges
Plate.
3. a kind of low-tension unit intelligent controller according to claim 1, which is characterized in that the protective plug-in unit includes hard
Part open entry loop, hardware output circuit, DSP operation processing unit, CAN communication unit and exchange A/D collecting units, the hardware
Open entry loop, the hardware output circuit, the CAN communication unit is electrically connected DSP fortune with the A/D collecting units that exchange
Processing unit is calculated, the CAN communication unit is electrically connected the bus backplane with A/D collecting units are exchanged.
4. a kind of low-tension unit intelligent controller according to claim 1, which is characterized in that the excitation plug-in unit includes hard
Part open entry loop, hardware output circuit, CAN communication unit, exchange A/D collecting units and DSP operation processing unit, the hardware
Open entry loop, the hardware output circuit, the CAN communication unit, the exchange A/D collecting units are separately connected the DSP
Operation processing unit；The DSP operation processing unit includes CPLD Complex Programmable Logic Devices, the CAN communication unit, institute
It states exchange A/D collecting units and is electrically connected the bus backplane.
5. a kind of low-tension unit intelligent controller according to claim 1, which is characterized in that the same period plug-in unit, described
Protective plug-in unit and the excitation plug-in unit include the FLASH for storing parameter and definite value.
6. a kind of low-tension unit intelligent controller according to claim 1, which is characterized in that including host computer, the CPU
Plug-in unit connects the host computer, and the CPU card includes R register.
7. a kind of low-tension unit intelligent controller according to claim 1, which is characterized in that including I/O plug-in units, the I/
O plug-in units include open into plug-in unit, output plug-in unit, mould enter with temperature plug-in unit, exchange plug-in unit 1, exchange plug-in unit 2, it is described to open into plug-in unit, institute
State and output plug-in unit, the mould enter with temperature plug-in unit, it is described exchange plug-in unit 1, the exchange plug-in unit 2 is electrically connected the bus back of the body
Plate.
8. a kind of low-tension unit intelligent controller according to claim 1, which is characterized in that described including power insert
Power insert is electrically connected the bus backplane.
9. a kind of low-tension unit intelligent controller according to claim 1, which is characterized in that including liquid crystal display panel, institute
It states liquid crystal display panel and is electrically connected the bus backplane.
10. a kind of low-tension unit intelligent controller according to claim 8, which is characterized in that the power insert is electrically connected
Connect the bus backplane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721624966.8U CN207819558U (en) | 2017-11-29 | 2017-11-29 | A kind of low-tension unit intelligent controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721624966.8U CN207819558U (en) | 2017-11-29 | 2017-11-29 | A kind of low-tension unit intelligent controller |
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| Publication Number | Publication Date |
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| CN207819558U true CN207819558U (en) | 2018-09-04 |
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| CN201721624966.8U Active CN207819558U (en) | 2017-11-29 | 2017-11-29 | A kind of low-tension unit intelligent controller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110888385A (en) * | 2019-11-06 | 2020-03-17 | 南京南瑞水利水电科技有限公司 | Method for simplifying automatic control flow configuration of low-voltage unit |
-
2017
- 2017-11-29 CN CN201721624966.8U patent/CN207819558U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110888385A (en) * | 2019-11-06 | 2020-03-17 | 南京南瑞水利水电科技有限公司 | Method for simplifying automatic control flow configuration of low-voltage unit |
| CN110888385B (en) * | 2019-11-06 | 2022-08-26 | 南京南瑞水利水电科技有限公司 | Method for simplifying automatic control flow configuration of low-voltage unit |
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