CN2914163Y - Constant-current high-voltage DC source centralization controlled by microcomputer - Google Patents
Constant-current high-voltage DC source centralization controlled by microcomputer Download PDFInfo
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- CN2914163Y CN2914163Y CN 200620012538 CN200620012538U CN2914163Y CN 2914163 Y CN2914163 Y CN 2914163Y CN 200620012538 CN200620012538 CN 200620012538 CN 200620012538 U CN200620012538 U CN 200620012538U CN 2914163 Y CN2914163 Y CN 2914163Y
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Abstract
A microcomputer central control consistent current high voltage direct current power source includes a central processor, a DCS input interface circuit, a simulated signal regulating circuit, a current and voltage parameter sampling circuit, a constant current control cabinet, a DC high-voltage generator, and an output control circuit. The utility model has the following advantages: 1. site manual working control; 2. centralized control in factory DCS system without communications protocol; 3. synchronous display of a first current value, a first voltage value, a second current value, a second voltage value, and a regulating value on the liquid crystal display; 3. the display of the secondary current value and voltage value on the central DCS system; 5. data record storage and printing functions; and 6. failure alarming and machine stop.
Description
Technical field
The utility model relates to the electrostatic precipitation field, especially relates to the central centralized control constant-current high-voltage DC power supply of a kind of microcomputer.
Background technology
In the prior art, the constant-current high-voltage DC power supply that is used for electrostatic precipitation can only be controlled at the scene, can not be in user central authorities Distributed Control System (DCS)s (DCS) directly display power supply secondary voltage, electric current service data and directly control the ruuning situation of constant-current high-voltage DC power supply, thereby limited the range of application of power supply, in addition, because can not centralized control, thereby user operation maintenance personnel's quantity and corresponding work amount have also just been increased.
The utility model content
The purpose of this utility model is to overcome the defective of prior art, provide a kind of microcomputer central centralized control constant-current high-voltage DC power supply, it can gather service data, storage, demonstration and printing automatically, and directly inserts user's central authorities' Distributed Control System (DCS)s (DCS) and realize by the central controlled purpose of central control room.
The central centralized control constant-current high-voltage DC power supply of microcomputer of the present utility model mainly comprises: central processing unit, the DCS input interface circuit, the simulating signal circuit of adjusting, current/voltage parameter sampling circuit, the constant current switch board, high voltage direct current generator and output control circuit, wherein, described central processing unit adopts the common model of prior art, this central processing unit is equipped with LCDs, the described simulating signal circuit of adjusting mainly comprises elementary primary voltage parameter sampling circuit and analog input interface circuit, described current/voltage parameter sampling circuit mainly comprises elementary primary current parameter sampling circuit, secondary secondary voltage parameter sampling circuit, secondary secondary current parameter sampling circuit, loop between high voltage direct current generator and load is mid-the described simulating signal circuit of adjusting, in the primary side loop of high voltage direct current generator, be connected to described current/voltage parameter sampling circuit, the adjust output port of circuit and current/voltage parameter sampling circuit of simulating signal all inserts the central processing unit of microcomputer, and the bidirectional analog amount and the switching value communication control interface that are connected with the work on the spot station of DCS host computer are arranged on the microcomputer of central processing unit.The output terminal of described DCS input interface circuit inserts central processing unit, and input end is connected with DCS work on the spot station, and this workstation links to each other with the DCS host computer, and described constant current switch board inserts power input.Output control circuit and central processing unit join, and it is furnished with many group alarms device.
The central centralized control constant-current high-voltage DC power supply of microcomputer of the present utility model has the following advantages: but 1. on-site manual work control; 2. need not communications protocol, directly be connected into DCS in factory system centralized control; 3. can on LCDs, realize the synchronous demonstration of primary current value, primary voltage value, secondary current value and setting valve, secondary voltage value and setting valve; 4. can be implemented in and show secondary voltage value and secondary current value in the central DCS system; 5. the recorded and stored and the printing function that have data; 6. has the function that fault alarm is shut down.
Description of drawings
With embodiment the central centralized control constant-current high-voltage DC power supply of microcomputer of the present utility model is done explanation in further detail with reference to the accompanying drawings.
Fig. 1 is a structure connection diagram of the present utility model;
Fig. 2 is the electrical connection diagram of DCS input interface circuit of the present utility model;
Fig. 3 is the adjust electrical connection diagram of circuit of simulating signal of the present utility model;
Fig. 4 is the electrical connection diagram of current/voltage parameter sampling circuit of the present utility model.
Embodiment
As shown in Figure 1, the central centralized control constant-current high-voltage DC power supply of microcomputer of the present utility model mainly comprises: central processing unit, the DCS input interface circuit, the simulating signal circuit of adjusting, current/voltage parameter sampling circuit, the constant current switch board, high voltage direct current generator and output control circuit, wherein, described central processing unit adopts the common model of prior art, this central processing unit is equipped with LCDs, the described simulating signal circuit of adjusting mainly comprises elementary primary voltage parameter sampling circuit and analog input interface circuit, described current/voltage parameter sampling circuit mainly comprises elementary primary current parameter sampling circuit, secondary secondary voltage parameter sampling circuit, secondary secondary current parameter sampling circuit, loop between high voltage direct current generator and load is mid-the described simulating signal circuit of adjusting, in the primary side loop of high voltage direct current generator, be connected to described current/voltage parameter sampling circuit, the adjust output port of circuit and current/voltage parameter sampling circuit of simulating signal all inserts the central processing unit of microcomputer, and the bidirectional analog amount and the switching value communication control interface that are connected with the work on the spot station of DCS host computer are arranged on the microcomputer of central processing unit.The output terminal of described DCS input interface circuit inserts central processing unit, and input end is connected with DCS work on the spot station, and this workstation links to each other with the DCS host computer, and described constant current switch board inserts power input.Output control circuit and central processing unit join, and it is furnished with many group alarms device, in case break down, just have alerting signal.
Shown in Figure 2 is the electrical connection diagram of DCS input interface circuit of the present utility model, as seen from the figure, this interface circuit mainly comprises: relay J P14, interface chip ISO18 and ISO20, resistance R 84, R85, R86 and R87, light emitting diode LD18 and LD20, and not gate U7B, wherein, described relay J P14 has four interfaces, described interface chip ISO18 and ISO20 have a light emitting diode and a triode respectively, the interface 1 of relay J P14 and interface 2 is the emitter and collector of the triode of connecting interface chip I SO20 in turn, the negative pole of the light emitting diode of this interface chip connects the positive pole of light emitting diode LD20 in turn, resistance R 87 and not gate U7B, the interface 4 of relay J P14 connects resistance R 86 in turn, the positive pole of the light emitting diode of the positive pole of light emitting diode LD18 and interface chip ISO18, the collector of the triode of this interface chip connects resistance R 84 and R85.The interface 1 of JP14 and interface 2 are used for providing to user central authorities Distributed Control System (DCS)s (DCS) is ready for signal, this signal is connected on the central processing unit to allow the DCS remote activation by the OUTaa port, the interface 3 of JP14 and interface 4 provide the startup/off signal of DCS control constant-current high-voltage DC power supply, by the port IN7 that is connected with central processing unit with the realization function.
The adjust electrical connection diagram of circuit of simulating signal of the present utility model that shown in Figure 3 is, as seen from the figure, this circuit mainly comprises elementary primary voltage parameter sampling circuit and analog input interface circuit, wherein, elementary primary voltage parameter sampling circuit mainly comprises amplifier U2D, U2C, diode D12, D15, D16, adjustable resistance W7, W8, resistance R 18, R50, R51, R52, R53, R54, R55, R56, and capacitor C 11, C15, resistance R 18 and capacitor C 15 are connected to the output terminals A CH3 of sampled signal, this port inserts central processing unit, diode D12 is connected with resistance R 18, amplifier U2D connects capacitor C 11, adjustable resistance W7 and resistance R 50, and by resistance R 51, diode D15 is connected with amplifier U2C, and amplifier U2C is connected with resistance R 52, R53, R54 and diode D16, the input end of the sampled signal of this circuit connects adjustable resistance W8.In addition, the signal input part of this sample circuit and analog input interface circuit join, described analog input interface circuit comprises relay J P12, resistance R 19, R59, adjustable resistance W9, diode D18 and capacitor C 16, the negative pole of diode D18 and resistance R 19, adjustable resistance W9 connects, the positive pole of diode D18 and capacitor C 16, resistance R 59 connects, port ACH4 is used for being connected with central processing unit, and reception is from the analog signals of the 4-20mA of central processing unit, send into the sampled signal input end of elementary primary voltage parameter sampling circuit by the output terminal of relay J P12, thereby reach the purpose of the constant-current high-voltage DC power supply secondary working voltage levels of current value of adjusting.
Shown in Figure 4 is the electrical connection diagram of current/voltage parameter sampling circuit of the present utility model, as seen from the figure, this circuit mainly comprises elementary primary current parameter sampling circuit, secondary secondary voltage parameter sampling circuit, secondary secondary current parameter sampling circuit and relay J P11, wherein, (1) elementary primary current parameter sampling circuit mainly comprises amplifier U2A, U2B, diode D10, D13, D14, adjustable resistance W5, W6, resistance R 17, R40, R41, R42, R43, R44, R45, R46, and capacitor C 10, C14, resistance R 17 and capacitor C 14 are connected to the output terminals A CH2 of sampled signal, diode D10 is connected with resistance R 17, amplifier U2A connects capacitor C 10, adjustable resistance W5 and resistance R 40, and by resistance R 41, diode D13 is connected with amplifier U2B, amplifier U2B is connected with resistance R 42, R43, R44 and diode D14, the input end of the sampled signal of this circuit connects adjustable resistance W6.In addition, the signal input part of this sample circuit and relay J P11 join; (2) secondary secondary voltage parameter sampling circuit mainly comprises amplifier U1D, U1C, diode D8, adjustable resistance W3, W4, resistance R 16, R30, R31, R32, R33, R34, R35, R36, and capacitor C 9, C13, resistance R 16 and capacitor C 13 are connected to the output terminals A CH1 of sampled signal, diode D8 is connected with resistance R 16, amplifier U1D connects adjustable resistance W3 and resistance R 30, and be connected with amplifier U1C by resistance R 31, amplifier U1C is connected with resistance R 32, R33, R34, R35, R36 and adjustable resistance W4, and capacitor C 9 connects resistance R 35 and R36.In addition, the signal input part of this sample circuit and relay J P11 join; (3) secondary secondary current parameter sampling circuit mainly comprises amplifier U1A, U1B, diode D6, adjustable resistance W1, W2, resistance R 15, R20, R21, R22, R23, R24, R25, R26, and capacitor C 8, C12, resistance R 15 and capacitor C 12 are connected to the output terminals A CH0 of sampled signal, diode D6 is connected with resistance R 15, amplifier U1A connects adjustable resistance W1 and resistance R 20, and be connected with amplifier U1B by resistance R 21, amplifier U1B is connected with resistance R 22, R23, R24, R25, R26 and adjustable resistance W2, and capacitor C 8 connects resistance R 25 and R26.In addition, the signal input part of this sample circuit and relay J P11 join.Port ACH0, the ACH1 of this current/voltage parameter sampling circuit, ACH2 insert central processing unit, and with simulating signal common DCS voltage setting valve mode of operation and the DCS current setting mode of operation that realizes microcomputer of the present utility model central authorities centralized control constant-current high-voltage DC power supply of circuit of adjusting.
The central centralized control constant-current high-voltage DC power supply of microcomputer of the present utility model is when work, at first export high-pressure side by current/voltage parameter sampling circuit sampling primary voltage current value and secondary voltage current value at high voltage direct current generator, the numerical value change of these sampled signals has reflected the ruuning situation of power supply, by these sampled signals are input in the central processing unit of microcomputer through mould/transformation of variables, central processing unit can store the data that collect, show, and carry out the data printout as required.Then, the simulating signal circuit of adjusting sends the analog signals of 4-20mA to central processing unit, in central processing unit, according to fuzzy control theory, these data are handled, judge, and remove to control constant current assembly in the power supply, to reach the purpose of the constant-current high-voltage DC power supply secondary working voltage levels of current value of adjusting by desired program.Simultaneously, the input end of DCS input interface circuit receives the startup/off signal from DCS work on the spot station, and transmit signals to central processing unit by output terminal, central processing unit carries out data processing to allow the DCS remote activation, simultaneously can set corresponding service data level and realize that up-computer centralized control power supply moves automatically, in addition, the output control circuit of power supply also is equipped with many group alarms device, in case break down, just have alerting signal, failure alarm signal is delivered to the power supply microcomputer, can cut off the electricity supply, and report to the police to show out of order character etc.
Above-described only is preferred implementation of the present utility model.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model principle, can also make some modification and improvement, these also should be considered as belonging to protection domain of the present utility model.
Claims (7)
1. microcomputer central authorities centralized control constant-current high-voltage DC power supply, comprise: central processing unit, the constant current switch board, high voltage direct current generator and output control circuit, its feature also is to comprise: the DCS input interface circuit, the simulating signal circuit of adjusting, current/voltage parameter sampling circuit, loop between high voltage direct current generator and load is mid-the described simulating signal circuit of adjusting, in the primary side loop of high voltage direct current generator, be connected to described current/voltage parameter sampling circuit, the adjust output port of circuit and current/voltage parameter sampling circuit of simulating signal all inserts the central processing unit of microcomputer, the bidirectional analog amount and the switching value communication control interface that are connected with the work on the spot station of DCS host computer are arranged on the microcomputer of central processing unit, the output terminal of described DCS input interface circuit inserts central processing unit, input end is connected with DCS work on the spot station, this workstation links to each other with the DCS host computer, described constant current switch board inserts power input, and output control circuit is furnished with many group alarms device.
2. the central centralized control constant-current high-voltage DC power supply of microcomputer as claimed in claim 1, it is characterized in that described DCS input interface circuit mainly comprises: relay J P14, interface chip ISO18 and ISO20, resistance R 84, R85, R86 and R87, light emitting diode LD18 and LD20, and not gate U7B, wherein, described relay J P14 has four interfaces, described interface chip ISO18 and ISO20 have a light emitting diode and a triode respectively, the interface 1 of relay J P14 and interface 2 is the emitter and collector of the triode of connecting interface chip I SO20 in turn, the negative pole of the light emitting diode of this interface chip connects the positive pole of light emitting diode LD20 in turn, resistance R 87 and not gate U7B, the interface 4 of relay J P14 connects resistance R 86 in turn, the positive pole of the light emitting diode of the positive pole of light emitting diode LD18 and interface chip ISO18, the collector of the triode of this interface chip connects resistance R 84 and R85.
3. the central centralized control constant-current high-voltage DC power supply of microcomputer as claimed in claim 1, it is characterized in that the described simulating signal circuit of adjusting mainly comprises elementary primary voltage parameter sampling circuit and analog input interface circuit, wherein, elementary primary voltage parameter sampling circuit mainly comprises amplifier U2D, U2C, diode D12, D15, D16, adjustable resistance W7, W8, resistance R 18, R50, R51, R52, R53, R54, R55, R56, and capacitor C 11, C15, resistance R 18 and capacitor C 15 are connected to the output terminals A CH3 of sampled signal, this port inserts central processing unit, diode D12 is connected with resistance R 18, amplifier U2D connects capacitor C 11, adjustable resistance W7 and resistance R 50, and by resistance R 51, diode D15 is connected with amplifier U2C, amplifier U2C is connected with resistance R 52, R53, R54 and diode D16, the input end of the sampled signal of this circuit connects adjustable resistance W8, in addition, the signal input part of this sample circuit and analog input interface circuit join, described analog input interface circuit comprises relay J P12, resistance R 19, R59, adjustable resistance W9, diode D18 and capacitor C 16, the negative pole of diode D18 and resistance R 19, adjustable resistance W9 connects, the positive pole of diode D18 and capacitor C 16, resistance R 59 connects, port ACH4 is used for being connected with central processing unit, and receives the analog signals from the 4-20mA of central processing unit.
4. the central centralized control constant-current high-voltage DC power supply of microcomputer as claimed in claim 1 is characterized in that described current/voltage parameter sampling circuit mainly comprises elementary primary current parameter sampling circuit, secondary secondary voltage parameter sampling circuit, secondary secondary current parameter sampling circuit.
5. the central centralized control constant-current high-voltage DC power supply of microcomputer as claimed in claim 4, it is characterized in that described elementary primary current parameter sampling circuit comprises that mainly elementary primary current parameter sampling circuit mainly comprises amplifier U2A, U2B, diode D10, D13, D14, adjustable resistance W5, W6, resistance R 17, R40, R41, R42, R43, R44, R45, R46, and capacitor C 10, C14, resistance R 17 and capacitor C 14 are connected to the output terminals A CH2 of sampled signal, diode D10 is connected with resistance R 17, amplifier U2A connects capacitor C 10, adjustable resistance W5 and resistance R 40, and by resistance R 41, diode D13 is connected with amplifier U2B, amplifier U2B is connected with resistance R 42, R43, R44 and diode D14, the input end of the sampled signal of this circuit connects adjustable resistance W6, in addition, the signal input part of this sample circuit and relay J P11 join.
6. the central centralized control constant-current high-voltage DC power supply of microcomputer as claimed in claim 4, it is characterized in that described secondary secondary voltage parameter sampling circuit mainly comprises amplifier U1D, U1C, diode D8, adjustable resistance W3, W4, resistance R 16, R30, R31, R32, R33, R34, R35, R36, and capacitor C 9, C13, resistance R 16 and capacitor C 13 are connected to the output terminals A CH1 of sampled signal, diode D8 is connected with resistance R 16, amplifier U1D connects adjustable resistance W3 and resistance R 30, and be connected with amplifier U1C by resistance R 31, amplifier U1C is connected with resistance R 32, R33, R34, R35, R36 and adjustable resistance W4, capacitor C 9 connects resistance R 35 and R36, and in addition, the signal input part of this sample circuit and relay J P11 join.
7. the central centralized control constant-current high-voltage DC power supply of microcomputer as claimed in claim 4, it is characterized in that described secondary secondary current parameter sampling circuit mainly comprises amplifier U1A, U1B, diode D6, adjustable resistance W1, W2, resistance R 15, R20, R21, R22, R23, R24, R25, R26, and capacitor C 8, C12, resistance R 15 and capacitor C 12 are connected to the output terminals A CH0 of sampled signal, diode D6 is connected with resistance R 15, amplifier U1A connects adjustable resistance W1 and resistance R 20, and be connected with amplifier U1B by resistance R 21, amplifier U1B is connected with resistance R 22, R23, R24, R25, R26 and adjustable resistance W2, capacitor C 8 connects resistance R 25 and R26, and in addition, the signal input part of this sample circuit and relay J P11 join.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620012538 CN2914163Y (en) | 2006-04-28 | 2006-04-28 | Constant-current high-voltage DC source centralization controlled by microcomputer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620012538 CN2914163Y (en) | 2006-04-28 | 2006-04-28 | Constant-current high-voltage DC source centralization controlled by microcomputer |
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| Publication Number | Publication Date |
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| CN2914163Y true CN2914163Y (en) | 2007-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200620012538 Expired - Fee Related CN2914163Y (en) | 2006-04-28 | 2006-04-28 | Constant-current high-voltage DC source centralization controlled by microcomputer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010075662A1 (en) * | 2008-12-31 | 2010-07-08 | 广东省电力设计研究院 | Dcs control module for nuclear power engineering transformer |
| CN102707645A (en) * | 2012-01-06 | 2012-10-03 | 无锡市中联电子设备有限公司 | Output regulating system and method for static electricity eliminator |
-
2006
- 2006-04-28 CN CN 200620012538 patent/CN2914163Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010075662A1 (en) * | 2008-12-31 | 2010-07-08 | 广东省电力设计研究院 | Dcs control module for nuclear power engineering transformer |
| US8229601B2 (en) | 2008-12-31 | 2012-07-24 | Guangdong Electric Power Design Institute | DCS control module for a transformer in nuclear power engineering |
| CN102707645A (en) * | 2012-01-06 | 2012-10-03 | 无锡市中联电子设备有限公司 | Output regulating system and method for static electricity eliminator |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070620 |