CN201708760U - Scanning tunneling microscope 32 (STM32)-based microcomputer excitation device - Google Patents
Scanning tunneling microscope 32 (STM32)-based microcomputer excitation device Download PDFInfo
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- CN201708760U CN201708760U CN201020292644XU CN201020292644U CN201708760U CN 201708760 U CN201708760 U CN 201708760U CN 201020292644X U CN201020292644X U CN 201020292644XU CN 201020292644 U CN201020292644 U CN 201020292644U CN 201708760 U CN201708760 U CN 201708760U
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Abstract
The invention relates to a scanning tunneling microscope 32 (STM32)-based microcomputer excitation device. The device comprises a measuring unit and an excitation adjusting unit connected with the measuring unit connected with the measuring unit, wherein the excitation adjusting unit comprises a channel A adjustor, a channel B adjustor and a logic switching unit; the channel A adjustor and the channel B adjustor adopt multi-central processing unit (CPU) modes; a 32-digit Cortex-M3 chip core processor is taken as a master control CPU; an STC12LE5410 chip is taken as a communication processor; and a 5TC5410 chip is taken as a man-machine interface processor. The channel A adjustor and the channel B adjustor of the utility model adopt the 32-digit Cortex-M3 chip core processors as master control CPUs, so that the overall reliability, adaptability and most optimized excitation control technology of a system are improved; and a multi-CPU structure is adopted, so that the workload of the master control CPU is reduced greatly, excitation computing control speed is increased and the reliability of excitation control is enhanced greatly.
Description
Technical field
The utility model relates to the automatic control technology field, specifically is a kind of microcomputer excitation installment based on STM32 that is used for generator.
Background technology
Generator excited system is variation and other input signal of gathering generator voltage and electric current, and exports the system of exciting current (supply generator rotor coil) according to control criterion control exciting power unit.The ability that generator excited system moves for the voltage levvl of keeping electric power system, raising power system stability, the service conditions of improving electric power system and generator etc. play important effect.Microcomputer excitation installment based on STM32 is again the core of excitation system, it should be able to realize automatic voltage adjusting, the reactive power adjustment and distribution automatically of generator, can make unit, be incorporated into the power networks and phase modulation operation, the accurate same period or automatic self synchronizing parallel operation can be carried out, the various service requirements of unit and electrical network can be satisfied quickly and easily.
Adjuster is generally finished regulatory function by the elements combination of a plurality of separation in the microcomputer excitation installment of prior art, causes the series relationship between each cell more like this, the design more complicated of hardware circuit, and the global reliability and the applicability of system are relatively poor.
Summary of the invention
The utility model provides a kind of microcomputer excitation installment based on STM32, can simplify the peripheral hardware of adjuster in the excitation unit, improve the reliability and the applicability of entire system, adopt the hardware circuit of independent generation pulse in addition, can export stable pulse, further improve the reliability of system.
The utility model, comprise measuring unit and the excitation regulation unit that is connected with measuring unit, described excitation regulation unit comprises the A channel adjuster, B passages regulate device, logical switch unit, power supply and pulse generator, the control end of described logical switch unit is connected with the control end of A channel adjuster and B passages regulate device respectively, the output of power supply is connected with the power input of A channel adjuster and B passages regulate device respectively, the signal output part of A channel adjuster and B passages regulate device is connected with the input of pulse generator respectively, the output of described pulse generator is used for being connected with the controllable silicon of generator commutation bridge, A channel adjuster and B passages regulate device adopt many cpu models respectively: the Cortex-M3 chip core processor that adopts 32 is as master cpu, adopt the STC12LE5410 chip as Communication processor, the 5TC5410 chip is as the man-machine interface processor.
The utility model A channel adjuster and B passages regulate device adopt 32 ARMCortex-M3 chip core processor as master cpu respectively, the main CUP chip that the regulatory function of A channel adjuster and B passages regulate device can be passed through integrated level height, fast operation like this substitutes discrete component, make regulatory function software implementation and functional module standardization, simplify the design of hardware circuit and the series relationship between assembly unit, to improve global reliability and the applicability and the optimized excitation control technology of system, reach the requirement of satisfying product advance and reliability; The STC12LE5410 chip is as Communication processor in addition, the 5TC5410 chip is as the man-machine interface processor, this multi-CPU structure greatly reduces the workload of master cpu, has improved excitation s operation control speed, has also improved the reliability of excitation control simultaneously greatly.
Description of drawings
Fig. 1 is the structural representation of the utility model excitation system, and it comprises excitation transformer, generator and based on the microcomputer excitation installment of STM32;
Fig. 2 is the illustrative view of functional configuration of the utility model based on the microcomputer excitation installment of STM32.
Among the figure: 1-generator, 2-dynamo current instrument transformer, 3-excitation transformer; the 4-first generator voltage instrument transformer, the 5-second generator voltage instrument transformer, 6-voltage transformer disconnection protective device; 7-system voltage instrument transformer, 8-Hall element, 9-excitation regulation unit; the 10-controllable silicon, 91-A passages regulate device, 92-B passages regulate device; the 93-logical switch unit, 94-power supply, 95-pulse generator; the 96-Communication processor, 97-man-machine interface processor.
Embodiment
Below in conjunction with the accompanying drawing in the utility model, the technical scheme in the utility model is clearly and completely described.
Fig. 1 is the structural representation of the utility model excitation system, excitation system comprises generator 1, the microcomputer excitation installment that excitation transformer 3 reaches based on STM32, described microcomputer excitation installment based on STM32 comprises measuring unit and the excitation regulation unit 9 that is connected with measuring unit, described excitation regulation unit 9 comprises A channel adjuster 91, B passages regulate device 92, logical switch unit 93, power supply 94 and pulse generator 95, the control end of described logical switch unit 93 is connected with the control end of A channel adjuster 91 and B passages regulate device 92 respectively, the output of power supply 94 is connected with the power input of A channel adjuster 91 and B passages regulate device 92 respectively, the signal output part of A channel adjuster 91 and B passages regulate device 92 is connected with the input of pulse generator 95 respectively, and the output of described pulse generator 95 is used for being connected with the controllable silicon 10 of generator commutation bridge.
Please refer to Fig. 2, A channel adjuster 91 and B passages regulate device 92 adopt 32 ARM Cortex-M3 chip (CPU1) core processor as master cpu respectively, the regulatory function of A channel adjuster 91 and B passages regulate device 92 can be passed through the integrated level height like this, the main CUP chip of fast operation (32 ARM Cortex-M3 chip core processors) substitutes discrete component, make regulatory function software implementation and functional module standardization, simplify the design of hardware circuit and the series relationship between assembly unit, to improve global reliability and the applicability and the optimized excitation control technology of system, reach the requirement of satisfying product advance and reliability.A channel adjuster 91 and B passages regulate device 92 carry out communication by Communication processor 96, and Communication processor 96 adopts STC12LE5410 chip (CPU2) in the present embodiment; A channel adjuster 91 and B passages regulate device 92 are connected with man-machine interface processor 97 respectively by Communication processor 96, are used to accept the external command operation and show the associated electrical parameter, and the utility model man-machine interface processor 97 adopts 5TC5410 chip (CPU1).Concrete, CPU1 connects with CPU2 and CPU3, and CPU3 is responsible for the interface of man-machine interface, accepts the signal of external operation screen, issues CPU1 through identification with after handling; CPU2 be responsible between two microcomputer passages (A channel adjuster 91 and B passages regulate device 92) and passage to the communication link of supervisory control system.Such multi-CPU structure greatly reduces the workload of master cpu 1, has improved excitation s operation control speed, has also improved the reliability of excitation control simultaneously greatly.
Described measuring unit is with the analog quantity sampled signal of generator 1 (voltage or electric current that generator 1 is current, exciting current, system voltage etc.) through isolating, step-down, carry out the A/D conversion after the filtering, calculate real-time generator voltage UAB ∠ by excitation regulation unit 9, UBC ∠, system voltage UXT, dynamo current IA ∠, IC ∠, exciting current IL, meritorious P ∠, idle Q ∠, electrical parameters such as merit angle θ ∠, again with generator voltage set-point (Ug), dynamo current set-point (IFg) or generator power set-point (Qg) compare, difference according to both is calculated, calculate the controllable silicon trigger angle, described then pulse generator 95 produces the control corresponding pulse according to the controllable silicon trigger angle, described pulse generator 95 sends the control impuls that produces to controllable silicon 10, and the measured value that changes generator amature voltage and then realize current generator voltage by silicon controlled rectifier is near generator voltage set-point (Ug), the measured value of current dynamo current near the measured value of electric current set-point (IFg) and current generator power near generator power set-point (Qg).Wherein said pulse generator 95 is realized by the hardware circuit that is independent of adjuster, has not only alleviated the burden of master cpu in the adjuster, has reduced risk, and owing to be provided with separately, can export stable pulse, improves the reliability of system.
Described power supply 94 is given A channel adjuster 91 and B passages regulate device 92, wherein said power supply 94 is by the standby each other duplicate supply unit of AC and DC, promptly exchange station service and the direct current station service is standby each other, if arbitrary road station service disappears, do not influence the normal power generation operation, can realize the fault-tolerant of power-supply system thus, improve the reliability of system.
A channel adjuster 91 and B passages regulate device 92 carry out real-time tracking by logical switch unit 93 and the automatic switchover when having an accident, be A channel adjuster 91 and B passages regulate device 92 one of them during for service aisle, another is a backup path, if service aisle breaks down, alternate channel can transfer service aisle automatically to, and transfer former service aisle to alternate channel, and can realize that thus adjuster is fault-tolerant, improve the reliability of system.
As shown in Figure 1, described measuring unit comprises: the first generator voltage instrument transformer 4, the second generator voltage instrument transformer 5, voltage transformer disconnection protective device 6, system voltage instrument transformer 7, Hall element 8.The output of the first generator voltage instrument transformer 4, the second generator voltage instrument transformer 5 is connected with voltage transformer disconnection protective device 6; the output of voltage transformer disconnection protective device 6 is connected with the input of excitation regulation unit 9, and the output of system voltage instrument transformer 7, Hall element 8 is connected with the input of excitation regulation unit 9.
The first generator voltage instrument transformer 4, the second generator voltage instrument transformer 5 are respectively applied for the two-way voltage of measuring generator; be input to then in the voltage transformer disconnection protective device 6; voltage transformer disconnection protective device 6 is exported the voltage U F as the current generator that finally records of a drive test amount voltage wherein again, and the magnitude of voltage of described current generator is transferred into excitation regulation unit 9 and handles.The first generator voltage instrument transformer 4, the second generator voltage instrument transformer 5 backup each other, the broken string that can realize measuring generator voltage is fault-tolerant: if the first generator voltage instrument transformer 4 breaks down, the second generator voltage instrument transformer 5 of then transferring is automatically measured, and does not influence the operation of unit normal power generation.
Dynamo current instrument transformer 2 be used to the to sample electric current I F of generator is then by being measured and handled by the master cpu in the excitation regulation unit 9.
Exciting current IL is by Hall element 8 samplings, then by being measured and handled by the master cpu in the excitation regulation unit 9.
System voltage instrument transformer 7 is used for system voltage UXT is sampled, and sends excitation regulation unit 9 then to and handles.
The above; it only is embodiment of the present utility model; but protection range of the present utility model is not limited thereto; anyly belong to those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of claim.
Claims (3)
1. based on the microcomputer excitation installment of STM32, comprise measuring unit and the excitation regulation unit (9) that is connected with measuring unit, it is characterized in that: described excitation regulation unit (9) comprises A channel adjuster (91), B passages regulate device (92), logical switch unit (93), power supply (94) and pulse generator (95), the control end of described logical switch unit (93) is connected with the control end of A channel adjuster (91) and B passages regulate device (92) respectively, the output of power supply (94) is connected with the power input of A channel adjuster (91) and B passages regulate device (92) respectively, the signal output part of A channel adjuster (91) and B passages regulate device (92) is connected with the input of pulse generator (95) respectively, the output of described pulse generator (95) is used for being connected with the controllable silicon (10) of generator commutation bridge, A channel adjuster (91) and B passages regulate device (92) adopt many cpu models respectively: the Cortex-M3 chip core processor that adopts 32 is as master cpu, adopt the STC12LE5410 chip as Communication processor, adopt the 5TC5410 chip as the man-machine interface processor.
2. the microcomputer excitation installment based on STM32 as claimed in claim 1 is characterized in that: described A channel adjuster (91) and described B passages regulate device (92) carry out real-time tracking by described logical switch unit (93) and the automatic switchover when having an accident.
3. the microcomputer excitation installment based on STM32 as claimed in claim 1; it is characterized in that: described measuring unit comprises the first generator voltage instrument transformer (4); the second generator voltage instrument transformer (5); voltage transformer disconnection protective device (6); system voltage instrument transformer (7) and Hall element (8); the first generator voltage instrument transformer (4); the output of the second generator voltage instrument transformer (5) is connected with voltage transformer disconnection protective device (6); the output of voltage transformer disconnection protective device (6) is connected with the input of excitation regulation unit (9), system voltage instrument transformer (7); the output of Hall element (8) is connected with the input of excitation regulation unit (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020292644XU CN201708760U (en) | 2010-08-16 | 2010-08-16 | Scanning tunneling microscope 32 (STM32)-based microcomputer excitation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020292644XU CN201708760U (en) | 2010-08-16 | 2010-08-16 | Scanning tunneling microscope 32 (STM32)-based microcomputer excitation device |
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| CN201708760U true CN201708760U (en) | 2011-01-12 |
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| CN201020292644XU Expired - Lifetime CN201708760U (en) | 2010-08-16 | 2010-08-16 | Scanning tunneling microscope 32 (STM32)-based microcomputer excitation device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106559020A (en) * | 2015-09-28 | 2017-04-05 | 上海昱章电气成套设备有限公司 | The set-point of EDG excitations method and apparatus detached with adjustment function |
| CN109541469A (en) * | 2019-01-09 | 2019-03-29 | 中国长江电力股份有限公司 | A kind of generator excited system PT broken string method of discrimination |
-
2010
- 2010-08-16 CN CN201020292644XU patent/CN201708760U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106559020A (en) * | 2015-09-28 | 2017-04-05 | 上海昱章电气成套设备有限公司 | The set-point of EDG excitations method and apparatus detached with adjustment function |
| CN106559020B (en) * | 2015-09-28 | 2023-06-20 | 上海昱章电气股份有限公司 | Method and device for separating set value of EDG excitation from adjusting function |
| CN109541469A (en) * | 2019-01-09 | 2019-03-29 | 中国长江电力股份有限公司 | A kind of generator excited system PT broken string method of discrimination |
| CN109541469B (en) * | 2019-01-09 | 2021-09-17 | 中国长江电力股份有限公司 | PT disconnection judging method for generator excitation system |
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| CX01 | Expiry of patent term |