CN219642114U - Automatic control system - Google Patents
Automatic control system Download PDFInfo
- Publication number
- CN219642114U CN219642114U CN202320805138.3U CN202320805138U CN219642114U CN 219642114 U CN219642114 U CN 219642114U CN 202320805138 U CN202320805138 U CN 202320805138U CN 219642114 U CN219642114 U CN 219642114U
- Authority
- CN
- China
- Prior art keywords
- control system
- module
- data acquisition
- adopts
- main control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910018503 SF6 Inorganic materials 0.000 claims abstract description 19
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229960000909 sulfur hexafluoride Drugs 0.000 claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 238000009826 distribution Methods 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims abstract description 4
- 238000004891 communication Methods 0.000 claims abstract description 4
- 238000012545 processing Methods 0.000 claims description 6
- 238000004364 calculation method Methods 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 7
- 238000002360 preparation method Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 206010010071 Coma Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Control By Computers (AREA)
Abstract
The utility model provides an automatic control system. The automated control system includes: the automatic control system is arranged at the power distribution station and consists of a PC central machine and a plurality of auxiliary machines; the PC central machine comprises a COM serial communication interface of an RS-232C standard; the auxiliary machine consists of a data acquisition module, a main control module and a transmission module; the data acquisition module is used for acquiring state parameters and performing analog-to-digital conversion on sulfur hexafluoride gas of the circuit breaker in the power distribution station. The automatic control system provided by the utility model is simple to operate and convenient to control, and meanwhile, the sulfur hexafluoride gas can be monitored and state-known in real time, so that maintenance personnel can conveniently judge and make corresponding preparation work, and the hidden danger can be reduced.
Description
Technical Field
The utility model belongs to the technical field of automatic control systems, and particularly relates to an automatic control system.
Background
SF 6 Circuit breakers are important devices in power systems, which are important in the high-voltage and ultra-high-voltage fields, and the reliability of their operation is not only related to the circuit breaker itself, but also affects the safety of other devices and even the whole power grid.
Through searching, in the related art, the patent document of the authorized publication number CN102818683A discloses a gas leakage detection method of a high-voltage circuit breaker SF6, belongs to the field of detection of power supply systems, and aims to solve the problem that the stable operation of the power supply systems cannot be ensured due to misjudgment caused by insensitivity and inaccuracy and the delay of fault time when the conventional leakage detection equipment is used for detecting leakage. The method comprises the following steps: step one, uniformly brushing a brush stained with soapy water along a cabin sealing surface of a high-voltage circuit breaker SF 6; marking the leakage points with bubbles by using a marker pen; thirdly, fastening nuts on the sealing surface of the position where the leakage point is located by using a movable spanner; the steps one to three are repeatedly performed until no bubbles are generated in the high voltage circuit breaker SF6 when the brush stained with soapy water is uniformly applied.
With respect to the related art in the above, the inventors consider that there are the following drawbacks:
1. the basic method for maintaining the high-voltage circuit breaker is planned maintenance, the method is blind and mandatory, and when sulfur hexafluoride gas leaks to reach a certain concentration, the maintenance is easy to enter and is easy to cause damage to maintenance personnel, such as coma, poisoning and the like, and hidden danger is generated.
Accordingly, there is a need to provide a new automated control system that solves the above-mentioned problems.
Disclosure of Invention
The utility model solves the technical problem of providing the automatic control system which is simple to operate and convenient to control, and can monitor sulfur hexafluoride gas in real time and know the state at the same time, so that maintenance personnel can conveniently judge and make corresponding preparation work, and hidden danger can be reduced.
In order to solve the above technical problems, the present utility model provides an automation control system comprising: the automatic control system is arranged at the power distribution station and consists of a PC central machine and a plurality of auxiliary machines 2;
the PC central machine comprises a COM serial communication interface of an RS-232C standard;
the auxiliary machine consists of a data acquisition module, a main control module and a transmission module;
the data acquisition module is used for acquiring state parameters and performing analog-to-digital conversion on sulfur hexafluoride gas of a breaker in the power distribution station;
the main control module is used for processing and analyzing the acquired data and correspondingly controlling the circuit breaker according to the result.
As a further scheme of the utility model, the data acquisition module adopts an intelligent digital sensor-NPX-1, the intelligent digital sensor integrates a silicon pressure sensor, a voltage sensor, a temperature sensor, an 8-bit RISC microprocessor, a mass storage and LF input, and the 8-bit RISC microprocessor of the intelligent digital sensor adopts CPUPCH7970.
As a further scheme of the utility model, the main control module adopts a high-speed high-performance mixed signal processing singlechip C8051F330 as a microprocessor chip, the C8051F330 chip adopts a CIP-51 microcontroller core, and the CIP-51 microcontroller core is provided with all peripheral components of a standard 8052, including 4 16-bit counters/timers, a full duplex UART with enhanced baud rate configuration, an enhanced SPI port, 768 bytes of internal RAM, 128 bytes of Special Function Register (SFR) address space and 17I/O ports.
As a further scheme of the utility model, the main control module further comprises an output display sub-module, a relay sub-module and a status indicator sub-module.
As a further scheme of the utility model, the transmission module adopts an RS-485 bus, and the plurality of auxiliary machines are all connected with the PC central machine through the RS-485 bus.
As a further scheme of the utility model, the calculation formula of the sulfur hexafluoride gas is as follows:
P＝RTB×γ 2 +RT×γ
wherein:
A＝73.882×10 -5 －5.132105×10 -7 γ；
B＝2.50695×10 -3 －2.12238×10 -6 γ；
R＝56.9502×10 -3 (bar·m 3 /K)；
in the above formula:
p is absolute pressure, bar;
t is-temperature, K;
gamma is-density, kg/m 3 。
Compared with the related art, the automatic control system provided by the utility model has the following advantages that
The beneficial effects are that:
1. the utility model has simple operation and convenient control, and can simultaneously monitor sulfur hexafluoride gas in real time and know the state, thereby facilitating the judgment of maintenance personnel and making corresponding preparation work, and further reducing hidden danger.
Drawings
The present utility model is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
FIG. 1 is a schematic diagram of the present utility model;
FIG. 2 is a schematic diagram of an auxiliary machine according to the present utility model;
FIG. 3 is a schematic diagram of data transmission between a C8051F330 chip and an NPX chip according to the present utility model.
In the figure: 1. a PC central machine; 2. an auxiliary machine; 3. a data acquisition module; 4. a main control module; 5. and a transmission module.
Detailed Description
Referring to fig. 1, fig. 2 and fig. 3 in combination, fig. 1 is a schematic diagram of the present utility model; FIG. 2 is a schematic diagram of an auxiliary machine according to the present utility model; FIG. 3 is a schematic diagram of data transmission between a C8051F330 chip and an NPX chip according to the present utility model. The automated control system includes: the automatic control system is arranged at the power distribution station and consists of a PC central machine 1 and a plurality of auxiliary machines 2;
the PC central machine 1 comprises a COM serial communication interface of an RS-232C standard;
the auxiliary machine 2 consists of a data acquisition module 3, a main control module 4 and a transmission module 5;
the data acquisition module 3 is used for acquiring state parameters and performing analog-to-digital conversion on sulfur hexafluoride gas of a circuit breaker in the power distribution station;
the main control module 4 is used for processing and analyzing the acquired data and correspondingly controlling the circuit breaker according to the result.
The data acquisition module adopts an intelligent digital sensor-NPX-1, the intelligent digital sensor integrates a silicon pressure sensor, a voltage sensor, a temperature sensor, an 8-bit RISC microprocessor, a mass storage and LF input, and the 8-bit RISC microprocessor of the intelligent digital sensor adopts CPUPCH7970.
The main control module 4 adopts a high-speed high-performance mixed signal processing singlechip C8051F330 as a microprocessor chip, the C8051F330 chip adopts a CIP-51 microcontroller core, and the CIP-51 microcontroller core is provided with all peripheral components of a standard 8052, including 4 16-bit counters/timers, a full duplex UART with enhanced baud rate configuration, an enhanced SPI port, 768-byte internal RAM, 128-byte Special Function Register (SFR) address space and 17I/O ports.
The main control module 4 further comprises an output display sub-module, a relay sub-module and a status indicator sub-module.
The microprocessor C8051F330 is connected with the sensor chip NPX-I;
the transmission module adopts an RS-485 bus, and the plurality of auxiliary machines 2 are all connected with the PC central machine through the RS-485 bus.
The calculation formula of the sulfur hexafluoride gas is as follows:
P＝RTB×γ 2 +RT×γ
wherein:
A＝73.882×10 -5 －5.132105×10 -7 γ；
B＝2.50695×10 -3 －2.12238×10 -6 γ；
R＝56.9502×10 -3 (bar·m 3 /K)；
in the above formula:
p is absolute pressure, bar;
t is-temperature, K;
gamma is-density, kg/m 3 。
The RS-485 bus adopts balanced transmission, and a data transceiver for differential reception drives the bus, and has the characteristics of high noise suppression, wide common mode range, long transmission distance, collision protection and the like.
Through the RS-485 bus, the PC central machine 1 can remotely inquire the state of each auxiliary machine 2, modify the control parameters thereof and utilize the historical data to carry out SF 6 And the gas leakage condition of the gas circuit breaker is pre-warned.
The working principle of the automatic control system provided by the utility model is as follows:
a first step of: when the circuit breaker is used, the data acquisition module 3 is used for acquiring the state parameters of the sulfur hexafluoride gas, so that the data of the pressure and the temperature of the sulfur hexafluoride gas can be obtained in real time, then the data are transmitted into the main control module, and the C8051F330 chip is used for calculation and analysis (the formula is as follows), so that the density data of the sulfur hexafluoride gas are obtained, and whether the sulfur hexafluoride gas in the circuit breaker leaks or not is judged;
P＝(RTB-A)×γ 2 +RT×γ
the equation for density γ can be derived from the equation:
(RTB-A)×γ 2 +RT×γ-P＝0
namely:
f(γ)＝(RTB-A)×γ 2 +RT×γ-P
thereby obtaining the following steps:
f′(γ)＝2×(RTB-A)×γ+RT
the sulfur hexafluoride gas monitoring system is simple to operate and convenient to control, sulfur hexafluoride gas can be monitored in real time and known in state, maintenance personnel can judge and make corresponding preparation work conveniently, and accordingly hidden danger can be reduced.
It should be noted that, the device structure and the drawings of the present utility model mainly describe the principle of the present utility model, in terms of the technology of the design principle, the arrangement of the power mechanism, the power supply system, the control system, etc. of the device is not completely described, and on the premise that the person skilled in the art understands the principle of the present utility model, the specific details of the power mechanism, the power supply system and the control system can be clearly known, the control mode of the application file is automatically controlled by the controller, and the control circuit of the controller can be realized by simple programming of the person skilled in the art;
the standard parts used in the method can be purchased from the market, and can be customized according to the description of the specification and the drawings, the specific connection modes of the parts are conventional means such as mature bolts, rivets and welding in the prior art, the machines, the parts and the equipment are conventional models in the prior art, and the structures and the principles of the parts are all known by the skilled person through technical manuals or through conventional experimental methods.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents, and in other related technical fields, which are equally encompassed by the scope of the present utility model.
Claims (6)
1. An automated control system, comprising:
the automatic control system is arranged at the power distribution station and consists of a PC central machine and a plurality of auxiliary machines;
the PC central machine comprises a COM serial communication interface of an RS-232C standard;
the auxiliary machine consists of a data acquisition module, a main control module and a transmission module;
the data acquisition module is used for acquiring state parameters and performing analog-to-digital conversion on sulfur hexafluoride gas of a breaker in the power distribution station;
the main control module is used for processing and analyzing the acquired data and correspondingly controlling the circuit breaker according to the result.
2. The automated control system of claim 1, wherein: the data acquisition module adopts an intelligent digital sensor-NPX-1, the intelligent digital sensor integrates a silicon pressure sensor, a voltage sensor, a temperature sensor, an 8-bit RISC microprocessor, a mass storage and LF input, and the 8-bit RISC microprocessor of the intelligent digital sensor adopts a CPU PCH7970.
3. The automated control system of claim 2, wherein: the main control module adopts a high-speed high-performance mixed signal processing singlechip C8051F330 as a microprocessor chip, the C8051F330 chip adopts a CIP-51 microcontroller core, and the CIP-51 microcontroller core is provided with all peripheral components of a standard 8052, including 4 16-bit counters/timers, a full duplex UART with enhanced baud rate configuration, an enhanced SPI port, 768-byte internal RAM, 128-byte Special Function Register (SFR) address space and 17I/O ports.
4. The automated control system of claim 1, wherein: the main control module further comprises an output display sub-module, a relay sub-module and a status indicator sub-module.
5. The automated control system of claim 2, wherein: the transmission module adopts an RS-485 bus, and the plurality of auxiliary machines are all connected with the PC central machine through the RS-485 bus.
6. The automated control system of claim 1, wherein: the calculation formula of the sulfur hexafluoride gas is as follows:
P＝(RTB)×γ 2 +RT×γ
wherein:
A＝73.882×10 -5 －5.132105×10 -7 γ；
B＝2.50695×10 -3 －2.12238×10 -6 γ；
R＝56.9502×10 -3 (bar·m 3 /K)；
in the above formula:
p is absolute pressure, bar;
t is-temperature, K;
gamma is-density, kg/m 3 。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320805138.3U CN219642114U (en) | 2023-04-12 | 2023-04-12 | Automatic control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320805138.3U CN219642114U (en) | 2023-04-12 | 2023-04-12 | Automatic control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219642114U true CN219642114U (en) | 2023-09-05 |
Family
ID=87810570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320805138.3U Active CN219642114U (en) | 2023-04-12 | 2023-04-12 | Automatic control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219642114U (en) |
-
2023
- 2023-04-12 CN CN202320805138.3U patent/CN219642114U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214173430U (en) | A monitoring system that is used for efficiency ann healthy integration of ventilation blower or water pump | |
| CN201607643U (en) | Testing device for variable pitch control system of wind generating set | |
| CN203883361U (en) | SF6 switch chamber intelligent monitoring system | |
| CN104898580A (en) | Wireless oil pumping unit controller with three-phase electric acquisition | |
| CN105137958A (en) | Railway under-vehicle power supply main control board detection device and detection method | |
| CN206946006U (en) | A kind of small-sized weather station integral control system | |
| CN203350349U (en) | Transformer substation bus phase voltage off-limit alarm system | |
| CN219642114U (en) | Automatic control system | |
| CN105606989A (en) | Circuit test method, device and system | |
| CN102420417B (en) | Wound type motor protector and protection method thereof | |
| CN209606831U (en) | A kind of complicated various industrial equipment state Centralizing inspection and fault diagnosis system | |
| CN204479652U (en) | A kind of three-phase multifunctional electrical energy meter with residual current protecting function | |
| CN204408009U (en) | Transformer station's AC power supervising device | |
| CN105823949A (en) | Lightning arrester online monitor | |
| CN203054143U (en) | Indoor transformer station busbar voltage abnormity alarm indicating device | |
| CN203745590U (en) | Line fault on-line positioner | |
| CN109831032A (en) | A kind of monitoring of electric power terminal | |
| CN204180088U (en) | Current conversion station DC control and protection system CAN detection system | |
| CN204695030U (en) | A kind of precision drilling corning machine with drill bit heat sink | |
| CN204576148U (en) | A kind of microcomputer rotation speed signal device for genset | |
| CN210296879U (en) | Looped netowrk cabinet state monitoring integrated device | |
| CN210668213U (en) | Gas density relay and monitoring system with insulation performance self-testing function | |
| CN203705913U (en) | System for controlling asphalt mixture stirring equipment | |
| CN207487881U (en) | Based on SF6 pressure monitor systems in wireless communication networks GIS | |
| CN205583650U (en) | Differential protective system is opened by photovoltaic power plant transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |