CN204465009U - Four distant type reactive power compensation control device - Google Patents
Four distant type reactive power compensation control device Download PDFInfo
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- CN204465009U CN204465009U CN201520200278.3U CN201520200278U CN204465009U CN 204465009 U CN204465009 U CN 204465009U CN 201520200278 U CN201520200278 U CN 201520200278U CN 204465009 U CN204465009 U CN 204465009U
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- reactive power
- power compensation
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- electric capacity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Abstract
The utility model relates in a kind of supply network and adjusting, the device of elimination or compensating power, be specifically related to a kind of four distant type reactive power compensation control device, comprise housing, housing is arranged control panel module, integrating control chip in housing, control chip at least comprises two RS485 serial ports, one of them RS485 serial ports is connected with reactive power compensation device, another RS485 serial ports is connected with main control computer, data acquisition module input connects voltage collection circuit and current collection circuit respectively, voltage collection circuit is connected with electrical network with current collection circuit input, data acquisition module output is connected with control chip respectively with control panel, power module provides power supply for each module.The utility model adopts two RS485 serial ports to be connected to reactive power compensation device MANET and electric power monitoring system main frame respectively, works alone, realizes the Remote of reactive power compensation device, reduces manual labor, increases work efficiency.
Description
Technical field
The utility model relates in a kind of supply network and adjusts, eliminates or the device of compensating power, is specifically related to a kind of four distant type reactive power compensation control device.
Background technology
As the important indicator weighing the quality of power supply, reactive power plays vital effect to operation of power networks.Reactive power is excessive, can cause electric current increase, apparent power increase, thus generator, transformer and other electric equipment capacity and wire capacity are increased; Reactive power increases, and supply line's line loss also can be caused to increase, thus the pressure drop of circuit and transformer is increased.Thus reducing the power quality of user, the efficiency of utilization of power reduces greatly, reduces the operational efficiency of electrical network.Therefore need to take measures, improved the quality of power supply of electrical network by the mode dropping into reactive power compensation capacitor, reduce the circuit loss of electrical network.The generation of reactive power compensating controller brings conveniently to the switching of reactive power compensation device MANET, enables the unified management in consolidated network of multiple stage capacitor, orderly switching.But the amendment of controller parameter and Non-follow control switching aspect also exist limitation, on-the-spot modifying and the operation of switching etc. can only be arrived, cannot Long-distance Control.
Utility model content
For solving the deficiency in above-mentioned technology, the purpose of this utility model is: provide a kind of four distant type reactive power compensation control device, two RS485 serial ports are adopted to be connected to reactive power compensation device MANET and electric power monitoring system main frame respectively, work alone, realize the Remote of reactive power compensation device, reduce manual labor, increase work efficiency.
For solving its technical problem, technical solution adopted in the utility model is:
Described four distant type reactive power compensation control device, comprise housing, described housing is arranged control panel module, control panel module comprises keyboard and display screen, integrating control chip and power module in housing, control chip at least comprises two RS485 serial ports, one of them RS485 serial ports is connected to communication module I by RS485 bus, communication module I is connected with reactive power compensation device by fling-cut switch, another RS485 serial ports is connected to main control computer by communication module II, data acquisition module input connects the output of voltage collection circuit and current collection circuit respectively, voltage collection circuit is connected with electrical network with current collection circuit input, data acquisition module output is connected with control chip respectively with control panel, power module provides power supply for each module.
Several reactive power compensation devices are comprised in reactive power compensation device MANET, each reactive power compensation device is connected to RS485 bus respectively by fling-cut switch and communication module I, then one of them RS485 serial ports of control chip is connected to by RS485 bus, control chip monitors the current state of each reactive power compensation device thus, and by another RS485 serial ports, the information of reactive power compensation device is passed to main control computer, for the information transmission between reactive power compensation device and main control computer builds information channel, the display screen of control panel module can control the electrical network parameter showing the current collection of data acquisition module, reactive power compensator state, keyboard can input the switching instruction of reactive power compensator, main control computer is located in master-control room, staff can detect the current state of each reactive power compensation device in real time and control it in master-control room, what is called four is distant, that is:
1, remote control, staff controls the switching action of certain reactive power compensation device in reactive power compensation device MANET by main control computer;
2, remote signalling, staff detects the digital quantity parameter of reactive power compensation device in MANET by main control computer;
3, remote measurement, the electric network data that staff is detected in real time by main control computer control control chip return data acquisition module, such as electric current, magnitude of voltage etc.;
4, remote regulating, staff passes through the numerical value of main control computer change control parameter, such as target power factor value.
The computer program that the realization of above-mentioned four remote control function relies on belongs to general knowledge as well known to those skilled in the art, does not need to pay creative work, the new signal wiring relation focusing on relating in technical scheme of the present utility model, has nothing to do with program.
Wherein, preferred version is:
Described communication module I is identical with communication module II structure, comprise nonpolarity RS485 communication chip, 8 pin of nonpolarity RS485 communication chip are connected with power module, 5 pin of nonpolarity RS485 communication chip are connected with earth terminal, 6 pin of nonpolarity RS485 communication chip are connected TVS pipe with between 7 pin, TVS pipe is also connected in series a thermistor respectively with 6 pin of nonpolarity RS485 communication chip and the junction of 7 pin, adopt nonpolarity RS485 communication chip, all can be communicated with without the need to paying close attention to polarity during wiring, for RS485 communication chip arranges protective circuit, be respectively TVS pipe and thermistor, TVS pipe effectively can suppress the high pressure between 6 pin of RS485 communication chip and 7 pin, thermistor is by the characteristic of high-impedance state during self-heating, big current is avoided to seal in the impact of the faults such as circuit on communication module I and communication module II.
Be connected to discharge tube between the thermistor of 6 pin of described nonpolarity RS485 communication chip and 7 pin serial connection, discharge tube can select TED485, and reaction speed is fast, and parasitic capacitance is little, and surge tolerance is large, realizes and overvoltage protection anti-lightning strike to the one-level of RS485 serial ports.
Described control chip adopts STM32F103 series monolithic, this series monolithic maximum running frequency can reach 72MHz, hardware Multi-serial port function is provided, be easy to realize two RS485 serial ports, two RS485 serial communications are avoided mutually to disturb, make control action more accurately and reliably, easily realize processing remote guidance command under operation.
Described data acquisition module adopts ATT7022E computation chip, the circuit such as the Digital Signal Processing of this integrated chip power, energy, effective value, power factor and frequency measurement, application is convenient, the data such as the electric current in network system, voltage, meritorious and reactive factor can be gathered, and be passed to main control computer, observe use for operating personnel, peripheral circuit those skilled in the art that this chip functions realizes relating to know, do not repeat them here.
Described reactive power compensation device adopts power capacitor, comprise three electric capacity, three electric capacity is respectively by the A of three wires and electrical network, B, C triple line is connected, three wires are connected in series fling-cut switch respectively, realize A, B, C three phase reactive power is complementary, above-mentioned three electric capacity are enclosed in a casing, casing arranges louvre, casing internal fixtion temperature sensor, temperature sensor is connected with control chip, louvre can realize producing scattering and disappearing of heat in the electric capacity course of work, occur that temperature is too high not in time for preventing heat radiation and burn capacitor, real time temperature in set temperature sensor detection box body region, and send data to control chip, once temperature sensor detects that in casing, temperature is too high, control fling-cut switch is cut off this power capacitor by control chip.
Described reactive power compensation device adopts power capacitor, comprise three electric capacity, three electric capacity adopt Y-connection structure, fling-cut switch is connected with electric capacity, electric capacity is connected on the zero line of electrical network by wire, fling-cut switch passes through the A of three wires and electrical network, B, C triple line is connected, realize three phase reactive power phase splitting compensation, three electric capacity are enclosed in a casing, casing arranges louvre, casing internal fixtion temperature sensor, temperature sensor is connected with control chip, louvre can realize producing scattering and disappearing of heat in the electric capacity course of work, occur that temperature is too high not in time for preventing heat radiation and burn capacitor, real time temperature in set temperature sensor detection box body region, and send data to control chip, once temperature sensor detects that in casing, temperature is too high, control fling-cut switch is cut off this power capacitor by control chip.
Compared with prior art, the utility model has following beneficial effect:
The utility model adopts two RS485 serial ports to be connected to reactive power compensation device MANET and electric power monitoring system main frame respectively, works alone, realizes the Remote of reactive power compensation device, reduces manual labor, increases work efficiency.Several reactive power compensation devices are comprised in reactive power compensation device MANET, each reactive power compensation device is connected to RS485 bus respectively by communication module I, then one of them RS485 serial ports of control chip is connected to by RS485 bus, control chip monitors the current state of each reactive power compensation device thus, and by another RS485 serial ports, the information of reactive power compensation device is passed to main control computer, for the information transmission between reactive power compensation device and main control computer builds information channel, staff can detect the current state of each reactive power compensation device in real time by main control computer and control it, realize four distant.
Accompanying drawing explanation
Fig. 1 the utility model embodiment 1 structured flowchart.
Fig. 2 the utility model embodiment 1 communication module I circuit diagram.
Fig. 3 the utility model embodiment 1 current collection circuit schematic diagram.
Fig. 4 the utility model embodiment 1 voltage collection circuit schematic diagram.
Fig. 5 the utility model embodiment 2 power capacitor line schematic diagram.
Fig. 6 the utility model embodiment 3 power capacitor line schematic diagram.
In figure: 1, fling-cut switch; 2, electric capacity.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is described further:
Embodiment 1:
As Fig. 1, shown in Fig. 3 and Fig. 4, four distant type reactive power compensation control device described in the utility model, comprise housing, described housing is arranged control panel module, control panel module comprises keyboard and display screen, integrating control chip and power module in housing, control chip at least comprises two RS485 serial ports, one of them RS485 serial ports is connected to communication module I by RS485 bus, communication module I is connected with reactive power compensation device by fling-cut switch, another RS485 serial ports is connected to main control computer by communication module II, data acquisition module input connects the output of voltage collection circuit and current collection circuit respectively, voltage collection circuit is connected with electrical network with current collection circuit input, data acquisition module output is connected with control chip respectively with control panel, power module provides power supply for each module, voltage collection circuit and current collection circuit all adopt available circuit structure.
As shown in Figure 2, communication module I is identical with communication module II structure, comprise nonpolarity RS485 communication chip U1, 8 pin of nonpolarity RS485 communication chip U1 are connected with power module, 5 pin of nonpolarity RS485 communication chip U1 are connected with earth terminal, 6 pin of nonpolarity RS485 communication chip U1 are connected TVS pipe T1 with between 7 pin, TVS pipe T1 is also connected in series a thermistor RT1 respectively with 6 pin of nonpolarity RS485 communication chip U1 and the junction of 7 pin, RT2, adopt nonpolarity RS485 communication chip U1, all can be communicated with without the need to paying close attention to polarity during wiring, for nonpolarity RS485 communication chip U1 arranges protective circuit, be respectively TVS pipe T1 and thermistor RT1, RT2, TVS pipe T1 effectively can suppress the high pressure between 6 pin of RS485 communication chip U1 and 7 pin, thermistor RT1, RT2 is by the characteristic of high-impedance state during self-heating, big current is avoided to seal in the impact of the faults such as circuit on communication module I and communication module II, discharge tube T2 is connected between the thermistor RT1 of 6 pin of nonpolarity RS485 communication chip U1 and 7 pin serial connection and thermistor RT2, discharge tube T2 selects TED485, and reaction speed is fast, and parasitic capacitance is little, surge tolerance is large, realizes and overvoltage protection anti-lightning strike to the one-level of RS485 serial ports, control chip adopts STM32F103 series monolithic, this series monolithic maximum running frequency can reach 72MHz, hardware Multi-serial port function is provided, be easy to realize two RS485 serial ports, two RS485 serial communications are avoided mutually to disturb, make control action more accurately and reliably, easily realize processing remote guidance command under operation, data acquisition module adopts ATT7022E computation chip, the circuit such as the Digital Signal Processing of this integrated chip power, energy, effective value, power factor and frequency measurement, application is convenient, the data such as the electric current in network system, voltage, meritorious and reactive factor can be gathered, and be passed to main control computer, observe use for operating personnel, peripheral circuit those skilled in the art that this chip functions realizes relating to know, do not repeat them here.
The utility model adopts two RS485 serial ports to be connected to reactive power compensation device MANET and electric power monitoring system main frame respectively, works alone, realizes the Remote of reactive power compensation device, reduces manual labor, increases work efficiency.Several reactive power compensation devices are comprised in reactive power compensation device MANET, be integrated in cabinet inside, each reactive power compensation device is connected to RS485 bus respectively by communication module I, then one of them RS485 serial ports of control chip is connected to by RS485 bus, control chip monitors the current state of each reactive power compensation device thus, and by another RS485 serial ports, the information of reactive power compensation device is passed to main control computer, for the information transmission between reactive power compensation device and main control computer builds information channel, the display screen of control panel module can control the electrical network parameter showing the current collection of data acquisition module, reactive power compensator state, keyboard can input the switching instruction of reactive power compensator, main control computer is located in master-control room, staff can detect the current state of each reactive power compensation device in real time and control it in master-control room, realize four distant, what is called four is distant, that is:
1, remote control, in cabinet, reactive power compensation device adopts 3 phase compensation capacitors, namely staff can be observed cabinet compensation condenser by main control computer, and which is devoted oneself to work mutually, and which does not drop into mutually, and arbitrary phase switching action of control and compensation capacitor;
2, remote signalling, staff detects the digital quantity parameter of certain networking reactive power compensation device by main control computer, the compensation capacity of such as certain reactive power compensation device, the switching frequency etc. of compensation type, offset current, state and fling-cut switch;
3, remote measurement, the electric network data that staff is detected in real time by main control computer control control chip return data acquisition module, such as electric current, magnitude of voltage etc.;
4, remote regulating, staff is by the numerical value of main control computer change control parameter, such as, during the switching state of control and compensation capacitor, need with switching thresholding for foundation, main control computer can change current switching thresholding, if target power factor is set to 0.95 originally, and does not reach the compensation effect wanted, can by sending order, target power factor is revised as 0.98, thus makes compensation effect more obvious.
The computer program that the realization of above-mentioned four remote control function relies on belongs to general knowledge as well known to those skilled in the art, does not need to pay creative work, the new signal wiring relation focusing on relating in technical scheme of the present utility model, has nothing to do with program.
Embodiment 2:
The present embodiment has set up reactive power compensation device operator guards on the basis of embodiment 1, described reactive power compensation device adopts power capacitor, be fixed in capacitor box, as shown in Figure 5, each reactive power compensation device comprises three electric capacity, comprise three electric capacity 2, three electric capacity 2 is respectively by the A of three wires and electrical network, B, C triple line is connected, three wires are connected in series fling-cut switch 1 respectively, realize A, B, C three phase reactive power is complementary, above-mentioned three electric capacity 2 are enclosed in a casing, casing arranges louvre, casing internal fixtion temperature sensor, temperature sensor is connected with control chip, louvre can realize producing scattering and disappearing of heat in the electric capacity course of work, occur that temperature is too high not in time for preventing heat radiation and burn capacitor, real time temperature in set temperature sensor detection box body region, and send data to control chip, once temperature sensor detects that in casing, temperature is too high, control fling-cut switch 1 is cut off this power capacitor by control chip.
Embodiment 3:
The present embodiment has set up reactive power compensation device operator guards on the basis of embodiment 1, described reactive power compensation device adopts power capacitor, be fixed in capacitor box, as shown in Figure 6, comprise three electric capacity 2, three electric capacity 2 adopt Y-connection structure, fling-cut switch 1 is connected with electric capacity 2, electric capacity 2 is connected on the zero line of electrical network by wire, fling-cut switch 1 passes through the A of three wires and electrical network, B, C triple line is connected, realize three phase reactive power phase splitting compensation, three electric capacity 2 are enclosed in a casing, casing arranges louvre, casing internal fixtion temperature sensor, temperature sensor is connected with control chip, louvre can realize producing scattering and disappearing of heat in the electric capacity course of work, occur that temperature is too high not in time for preventing heat radiation and burn capacitor, real time temperature in set temperature sensor detection box body region, and send data to control chip, once temperature sensor detects that in casing, temperature is too high, control fling-cut switch 1 is cut off this power capacitor by control chip.
Claims (7)
1. one kind four distant type reactive power compensation control device, comprise housing, it is characterized in that, described housing is arranged control panel module, control panel module comprises keyboard and display screen, integrating control chip and power module in housing, control chip at least comprises two RS485 serial ports, one of them RS485 serial ports is connected to communication module I by RS485 bus, communication module I is connected with reactive power compensation device by fling-cut switch, another RS485 serial ports is connected to main control computer by communication module II, data acquisition module input connects the output of voltage collection circuit and current collection circuit respectively, voltage collection circuit is connected with electrical network with current collection circuit input, data acquisition module output is connected with control chip respectively with control panel, power module provides power supply for each module.
2. four distant type reactive power compensation control device according to claim 1, it is characterized in that, described communication module I is identical with communication module II structure, comprise nonpolarity RS485 communication chip, 8 pin of nonpolarity RS485 communication chip are connected with power module, 5 pin of nonpolarity RS485 communication chip are connected with earth terminal, 6 pin of nonpolarity RS485 communication chip are connected TVS pipe with between 7 pin, and TVS pipe is connected to RS485 bus after being connected in series a thermistor respectively with 6 pin of nonpolarity RS485 communication chip and the junction of 7 pin.
3. four distant type reactive power compensation control device according to claim 2, is characterized in that, are connected to discharge tube between the thermistor of 6 pin of described nonpolarity RS485 communication chip and 7 pin serial connection.
4. four distant type reactive power compensation control device according to claim 1, is characterized in that, described control chip adopts STM32F103 series monolithic.
5. four distant type reactive power compensation control device according to claim 1, is characterized in that, described data acquisition module adopts ATT7022E computation chip.
6. four distant type reactive power compensation control device according to claim 1, it is characterized in that, described reactive power compensation device adopts power capacitor, comprise three electric capacity, three electric capacity are connected with A, B, C triple line of electrical network respectively by three wires, and three wires are connected in series fling-cut switch respectively, above-mentioned three electric capacity are enclosed in a casing, casing arranges louvre, and casing internal fixtion temperature sensor, temperature sensor is connected with control chip.
7. four distant type reactive power compensation control device according to claim 1, it is characterized in that, described reactive power compensation device adopts power capacitor, comprise three electric capacity, three electric capacity adopt Y-connection structure, fling-cut switch is connected with electric capacity, electric capacity is connected on the zero line of electrical network by wire, fling-cut switch is connected with A, B, C triple line of electrical network by three wires, three electric capacity are enclosed in a casing, casing arranges louvre, and casing internal fixtion temperature sensor, temperature sensor is connected with control chip.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520200278.3U CN204465009U (en) | 2015-04-03 | 2015-04-03 | Four distant type reactive power compensation control device |
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| CN201520200278.3U CN204465009U (en) | 2015-04-03 | 2015-04-03 | Four distant type reactive power compensation control device |
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| CN201520200278.3U Expired - Fee Related CN204465009U (en) | 2015-04-03 | 2015-04-03 | Four distant type reactive power compensation control device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889111A (en) * | 2016-06-13 | 2016-08-24 | 无锡虹业自动化工程有限公司 | Intelligent SVC electrical complete equipment |
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2015
- 2015-04-03 CN CN201520200278.3U patent/CN204465009U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889111A (en) * | 2016-06-13 | 2016-08-24 | 无锡虹业自动化工程有限公司 | Intelligent SVC electrical complete equipment |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20200403 |