CN113489021A - Economical alternating current voltage stabilizing device - Google Patents
Economical alternating current voltage stabilizing device Download PDFInfo
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- CN113489021A CN113489021A CN202110821683.7A CN202110821683A CN113489021A CN 113489021 A CN113489021 A CN 113489021A CN 202110821683 A CN202110821683 A CN 202110821683A CN 113489021 A CN113489021 A CN 113489021A
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- 230000001105 regulatory effect Effects 0.000 abstract description 14
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/16—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by adjustment of reactive power
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/26—Arrangements for eliminating or reducing asymmetry in polyphase networks
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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
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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
- Y02E40/50—Arrangements for eliminating or reducing asymmetry in polyphase networks
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Abstract
The invention relates to the field of electric power technology, and is widely applied to voltage regulating and stabilizing devices. The 3X voltage regulators are three-phase voltage regulators formed by combining a single-phase voltage regulator TR, a single-phase voltage regulator TS and a single-phase voltage regulator TT, and each group of 3X voltage regulators respectively comprises a primary winding 3XR1, a primary winding 3XR2, a primary winding 3XS1, a primary winding 3XS2, a primary winding 3XT1, a primary winding 3XT2 and a secondary winding.
Description
Technical Field
The invention relates to the field of electric power technology, and is widely applied to voltage regulating and stabilizing devices. In particular to an economical alternating current voltage stabilizing device.
Background
Electric power is one of the most important energy sources used in modern industry, agriculture and modern society life, voltage changes widely affect various industrial electric equipment, and a large number of users in various countries are far away from power supply points, and particularly serious undervoltage exists in countries and regions behind economy.
The electricity is a product of the civilized society, and promotes the development of the civilized society, the use degree of the electricity is closely related to the civilized society, the index of the civilized society is that the scientific technology develops rapidly, the socialization degree of the production is higher, the production scale is larger and larger, the technical requirement is more and more complex, the division of labor is more and more detailed, and the coordination of each production link is more and more important. It is worth mentioning that the low voltage has the most serious influence on modern industry, agriculture and modern society life, which affects the output power and service life of electrical equipment, increases the power consumption, reduces or rejects the product quality, reduces the yield, damages the equipment, even forces to stop production, and also affects the power system: the lower the voltage is, the lower the stable power limit is, and the lower the difference value (i.e. power reserve) between the power limit and the line output power is, the more unstable phenomenon is easy to occur, and even a major accident that the power supply system is broken down can be caused.
The voltage problem includes the following cases:
voltage deviation: the operation voltage value is within the range of +/-10% of the rated voltage value;
under voltage: the operation voltage value is within the range of 90-80% of the rated voltage value, and the voltage change lasts for more than 1 minute;
③ overvoltage: the operation voltage value is within the range of 110-120% of the rated voltage value, and the voltage change lasts for more than 1 minute;
fourthly, short-time undervoltage, wherein the time range is 3 seconds to 1 minute;
short-time overvoltage, wherein the time range is 3 seconds to 1 minute;
sixthly, the three-phase voltage unbalance is that the unevenness of the running three-phase voltage is more than or equal to 2 percent, and the unevenness of the running three-phase voltage is more than or equal to 4 percent in short time.
According to the safety voltage requirement of the electric equipment, namely the voltage difference change of the end voltage of the electric equipment is +/-5%, and the unbalance degree of the three-phase voltage is less than or equal to 2.6%. Some requirements are higher, namely the voltage difference change of the terminal of the electric equipment is less than or equal to 2.5 percent. The voltage regulating devices in the current market only comprise an unloaded voltage regulating transformer, an loaded voltage regulating transformer, reactive compensation equipment, a VQC voltage reactive control device, an induction type voltage regulator and a carbon brush type alternating current voltage stabilizer; firstly, the no-load voltage regulating transformer has low cost and reliable performance, but cannot be synchronously adjusted along with the voltage change and can only be adjusted after power failure; the on-load tap changer can be synchronously adjusted along with the voltage change, but is provided with an on-load tap changer, so that the generation of electric arcs is difficult to avoid when the voltage is adjusted, and the on-load tap changer needs to be maintained frequently; the reactive compensation equipment has reliable performance, but only can repair the voltage change caused by reactive power, but can not repair the voltage change caused by active power; the VQC voltage reactive power control device can ensure the voltage quality, optimize the reactive power flow of the power grid, play an important role in the economic operation of the power grid and the like, and the continuous working safety time of the VQC voltage reactive power control device is less than or equal to 1000 hours; although the induction type voltage regulator is reliable, the response speed is slow and is less than or equal to 5V/S, the efficiency is low and is less than or equal to 93 percent, and the voltage-stabilizing precision is poor and is less than or equal to 5 percent; and sixthly, the voltage regulating speed of the carbon brush type alternating current voltage stabilizer is less than or equal to 25V/S, and regular maintenance is needed.
The applicant finds that the no-load voltage regulating transformer can not be synchronously regulated along with the voltage change, and can only be regulated after power failure, so that the no-load voltage regulating transformer is troublesome to use and cannot play an effective voltage stabilizing role. It has also been found that as the input voltage decreases, the winding current increases, with winding losses increasing in proportion to the square of the current, for the same power delivered; secondly, when the on-load tap changer adjusts the voltage, the on-load tap changer is difficult to avoid generating no electric arc. It is also found that if the maintenance is not timely, short-time undervoltage of power supply can be caused, so that advanced power utilization equipment stops working or is damaged, even voltage breakdown of a power supply system can be caused, and adverse effects are brought to production, operation and working life of the power utilization area; and thirdly, the reactive compensation equipment cannot repair voltage change caused by active power. It has also been found that the capacitance reactive power is proportional to the square of the voltage, that a voltage decrease greatly reduces the reactive power output, and that a voltage increase, although the reactive power increases, enhances partial discharge due to field enhancement, and reduces the insulation life. If operated for a long period of time at 1.1UN, the life is reduced to approximately 44% of the rated life. It is also found that the phenomena of explosion of the capacitor and bulging of the shell are caused by partial discharge and insulation aging accumulation, so that the low voltage and the high voltage also seriously affect the expected service life of the reactive power compensation device and the safe operation of power supply; and fourthly, the VQC voltage reactive power control device can cause short-time undervoltage of power supply if the continuous working safety time is more than or equal to 1000 hours and the maintenance is not timely, so that advanced power utilization equipment stops working or is damaged, and even a power supply system in the power utilization area is collapsed. Meanwhile, the root causes of the third step are caused by unreasonable voltage-regulating tap joints of the power transformer and unreliable on-load voltage-regulating tap joint switches; an induction type voltage regulator with slow response speed less than or equal to 5V/S, low efficiency less than or equal to 93 percent and poor voltage stabilization precision less than or equal to 5 percent; and sixthly, the voltage regulating speed of the carbon brush type alternating current voltage stabilizer is less than or equal to 25V/S, and regular maintenance is needed. It has also been found that if the carbon brush is not regularly maintained, when the wear of the carbon brush is severe, the copper pillars are burned off and the power supply is affected, and a safety accident is caused if the wear is severe.
In view of the above technical problems, the applicant invented: the present invention relates to a three-phase ac voltage stabilizer, and more particularly, to a three-phase ac voltage stabilizer, which comprises a first three-phase high voltage regulator, a second high voltage regulator, a third three-phase low voltage compensator, a fourth low voltage compensator, a fifth voltage quality repairing device, a sixth economical three-phase ac voltage stabilizer, and a seventh economical ac voltage stabilizer.
Disclosure of Invention
In order to solve the technical problems, the invention provides an economical alternating current voltage stabilizing device which is simple to operate, safe, reliable and good in voltage regulating effect.
The technical scheme of the invention is as follows: an economical AC voltage stabilizer comprises a plurality of series-connected 3X voltage regulators, wherein each 3X voltage regulator comprises a single-phase voltage regulator TR, a single-phase voltage regulator TS and a single-phase voltage regulator TT, and each 3X voltage regulator comprises a primary winding 3XR1, a primary winding 3XR2, a primary winding 3XS1, a primary winding 3XS2, a primary winding 3XT1, a primary winding 3XT2 and a secondary winding.
In a further improvement, the apparatus further comprises a triac VTXR1, a triac VTXR2, a triac VTXRMAX1, a triac VTXRMAX2, a triac VTXRMAX3, a triac VTXS1, a triac VTXSXSX 2, a triac VTXSMAX1, a triac VTXSMAX2, a triac VTXSMAX3, a triac VTXT 3, a triac VTXTMAX3, and a triac VTXTMAX3, the primary winding 3XR 3 is connected to one end of the triac VTXR 3 and the triac VTXR 3, the primary winding 3XR 3 is connected to one end of the triac VTXR 3 and the triac VTXS 3, the primary winding 72 is connected to one end of the triac VTXR 3, the triac VTXS 3 is connected to one end of the triac VTXR 3, the triac VTXS XS 3 is connected to one end of the triac XSX 3, the primary winding 3XT2 is connected in the one end of bidirectional thyristor VTXTMAX1 and bidirectional thyristor VTXTMAX2, the other end of bidirectional thyristor VTXR1 is connected in the other end of bidirectional thyristor VTXRMAX1, the other end of bidirectional thyristor VTXR2 is connected with the one end of bidirectional thyristor VTXRMAX3, the other end of bidirectional thyristor VTXS1 is connected in the other end of bidirectional thyristor VTXSMAX1, the other end of bidirectional thyristor VTXS2 is connected with the one end of bidirectional thyristor VTXSMAX3, the other end of bidirectional thyristor VTXTXT 1 is connected in the other end of bidirectional thyristor VTXTMAX1, the other end of bidirectional thyristor VT 2 is connected with the one end of bidirectional thyristor VTXTMAX 3.
The improved structure of the power supply further comprises a control protection switch QF1, a control protection switch QF2 and a control protection switch QF3, wherein one end of the control protection switch QF1 is connected to the other end of the bidirectional controllable VTXRMAX3, one end of the control protection switch QF2 is connected to the other end of the bidirectional controllable silicon VTXSMAX3, one end of the control protection switch QF3 is connected to the other end of the bidirectional controllable silicon VTXTMAX3, the other end of the control protection switch QF1 is connected to an A-phase output end, the other end of the control protection switch QF2 is connected to a B-phase output end, and the other end of the control protection switch QF3 is connected to a C-phase output end.
In a further improvement, a suppressor HF1 is connected between the primary winding 3XR1 and the primary winding 3XR2, a suppressor HF2 is connected between the primary winding 3XS1 and the primary winding 3XS2, a suppressor HF3 is connected between the primary winding 3XT1 and the primary winding 3XT2, and the triacs VTXR1, VTXRMAX1, VTXS1, VTXSMAX1, VTXT1 and VTXTMAX1 are all connected with the input N line.
The improved voltage regulator is characterized by further comprising an operating system, a main control system and a driving system, wherein the three-phase input voltage, the three-phase input current, the three-phase output voltage, the three-phase output current and each group of 3X compensators are connected to the main control system, the operating system and the driving system are connected to the main control system, the operating system is a touch screen operation interface, and the main control system controls the 3X voltage regulator to work through the driving system.
In a further improvement, the voltage regulator further comprises a combination of at least a single-phase voltage regulator connected in series or in parallel.
By adopting the technical scheme, the invention has the beneficial effects that: the invention provides an economical alternating current voltage stabilizing device, which is shown in detail in figure 1. When the power is on or the input voltage is equal to the rated voltage, the main control system controls the bidirectional thyristors VTXRMAX2 and VTXRMAX3 to be switched off, and switches on VTXR1, VTXR2 and VTXRMAX1, so that the primary winding 3XR1 and the primary winding 3XR2 are short-circuited, and meanwhile, the other two groups are consistent with the working principle of the groups, so that the input voltage is equal to the output voltage. And secondly, when the input voltage is higher than the rated voltage value, the main control system controls the bidirectional controllable VTXRMAX2 and VTXR1 to be switched off, the VTXR2, VTXRMAX1 and VTXRMAX3 are switched on, the voltage of the primary winding to the secondary winding is counteracted, and meanwhile, the other two groups are consistent with the working principle of the group, so that the output voltage is equal to the rated voltage value. And thirdly, when the input voltage is lower than the rated voltage value, the main control system controls the bidirectional controllable VTXRMAX1 and VTXR2 to be switched off, and switches on VTXR1, VTXRMAX2 and VTXRMAX3, the primary winding carries out voltage compensation on the secondary winding, and meanwhile, the other two groups are consistent with the working principle of the group, so that the output voltage is equal to the rated voltage value.
The invention has simple control, safety and reliability, the voltage regulating speed is less than or equal to 100 milliseconds, the input voltage range is 20 percent, the voltage stabilizing precision is 2.5 percent, the input three-phase voltage balance is less than or equal to 10 percent, the output three-phase voltage unbalance is less than or equal to 3 percent, the efficiency is more than or equal to 99 percent, the rated capacity is less than or equal to 1600KVA, and the defects of products on the market can be overcome.
Drawings
Fig. 1 is a schematic circuit diagram of an economical ac voltage regulator according to an embodiment of the present invention;
FIG. 2 is a diagram of an interface of the human machine system device of the embodiment of the invention shown in FIG. 1;
FIG. 3 is a diagram of an interface of the human machine system device of an embodiment of the invention shown in FIG. 2;
FIG. 4 is a diagram of an interface of the human-machine system device in an embodiment of the invention shown in FIG. 3.
Detailed Description
The invention is described in further detail below with reference to the following figures and detailed description:
as shown in fig. 1, an economical ac voltage stabilizing apparatus includes a plurality of series-connected 3X voltage regulators, each of the 3X voltage regulators including a three-phase voltage regulator composed of a single-phase voltage regulator TR, a single-phase voltage regulator TS, and a single-phase voltage regulator TT, each of the 3X voltage regulators including a primary winding 3XR1, a primary winding 3XR2, a primary winding 3XS1, a primary winding 3XS2, a primary winding 3XT1, a primary winding 3XT2, and a secondary winding; further comprising a triac VTXR1, a triac VTXRX 1, a triac VTXRMAX1, a triac VTXS1, a triac VTXSMAX1, a triac VTXTMAX1, and a triac VTXTMAX1, said primary winding 3XR1 is connected to one end of the triac VTXR1 and the triac VTXR1, said primary winding 3XR1 is connected to one end of the triac VTXR1 and the triac VTXS1, said primary winding 3XS1 is connected to one end of the triac VTXS1, said one end of the triac VTXS1 is connected to said one end of the triac VTXS1, said one end of the triac VTXS1 and said triac VTXS1, said primary winding 72 is connected to said one end of the triac XSXT 1, the other end of the bidirectional thyristor VTXR1 is connected to the other end of the bidirectional thyristor VTXRMAX1, the other end of the bidirectional thyristor VTXR2 is connected with one end of the bidirectional thyristor VTXRMAX3, the other end of the bidirectional thyristor VTXS1 is connected to the other end of the bidirectional thyristor VTXSMAX1, the other end of the bidirectional thyristor VTXS2 is connected with one end of the bidirectional thyristor VTXSMAX3, the other end of the bidirectional thyristor VTXT1 is connected to the other end of the bidirectional thyristor VTXTMAX1, and the other end of the bidirectional thyristor VTXT2 is connected with one end of the bidirectional thyristor VTXTMAX 3; the control protection circuit further comprises a control protection switch QF1, a control protection switch QF2 and a control protection switch QF3, wherein one end of the control protection switch QF1 is connected to the other end of the bidirectional thyristor VTXRMAX3, one end of the control protection switch QF2 is connected to the other end of the bidirectional thyristor VTXSMAX3, one end of the control protection switch QF3 is connected to the other end of the bidirectional thyristor VTXTMAX3, the other end of the control protection switch QF1 is connected to an A-phase output end, the other end of the control protection switch QF2 is connected to a B-phase output end, and the other end of the control protection switch QF3 is connected to a C-phase output end; the bidirectional triode thyristor VTXR1, the bidirectional triode thyristor VTXRMAX1, the bidirectional triode thyristor VTXS1, the bidirectional triode thyristor VTXSMAX1, the bidirectional triode thyristor VTXTXTXT 1 and the bidirectional triode thyristor VTXTMAX1 are all connected with an input N line; the three-phase input voltage, the three-phase input current, the three-phase output voltage, the three-phase output current and each group of 3X compensators are connected with the main control system, the operating system and the driving system are connected with the main control system, the operating system is a touch screen operation interface, the main control system controls the 3X voltage regulator to work through the driving system, and fig. 2-4 are interface diagrams of the man-machine system device, and the interface diagrams comprise voltage display, current display, technical parameter setting display and technical parameter reset, and are displayed in a main view: the input voltage comprises a current value, a maximum value and a minimum value which are automatically recorded in real time, the output voltage comprises a current value, a maximum value and a minimum value which are automatically recorded in real time, the current comprises a current value and a maximum value and a minimum value which are automatically recorded in real time, the technical parameter setting display comprises a rated voltage value, a voltage-stabilizing precision value, a voltage-stabilizing threshold value setting value, a voltage regulation mode, a working mode, an abnormal three-phase unbalance protection value, an abnormal overvoltage protection value, an abnormal undervoltage protection value, an input fault processing mode and a voltage-stabilizing fault processing mode, and the technical parameter resetting comprises a rated voltage value, a voltage-stabilizing precision value, a voltage-stabilizing threshold value setting value, a voltage regulation mode, a working mode, an abnormal three-phase unbalance protection value, an abnormal overvoltage protection value, an abnormal undervoltage protection value, "input fault processing mode" and "voltage stabilization fault processing mode".
The economical AC voltage stabilizer also comprises a combination of at least a single-phase voltage regulator connected in series or in parallel. Are also within the scope of the present invention.
The working principle is as follows: when the power is on or the input voltage is equal to the rated voltage, the main control system controls the bidirectional thyristors VTXRMAX2 and VTXRMAX3 to be switched off, and switches on VTXR1, VTXR2 and VTXRMAX1, so that the primary winding 3XR1 and the primary winding 3XR2 are short-circuited, and meanwhile, the other two groups are consistent with the working principle of the groups, so that the input voltage is equal to the output voltage. When the input voltage is higher than the rated voltage value, the main control system controls the bidirectional controllable VTXRMAX2 and VTXR1 to be switched off, the VTXR2, VTXRMAX1 and VTXRMAX3 are switched on, the voltage of the primary winding to the secondary winding is counteracted, and meanwhile, the other two groups are consistent with the working principle of the other group, so that the output voltage is equal to the rated voltage value. When the input voltage is lower than the rated voltage value, the main control system controls the bidirectional controllable VTXRMAX1 and VTXR2 to be switched off, and switches on VTXR1, VTXRMAX2 and VTXRMAX3, so that the voltage compensation is carried out on the secondary winding by the primary winding, and the other two groups are consistent with the working mode of the groups, so that the output voltage is equal to the rated voltage value.
The present invention has been described in detail with reference to the specific embodiments, but these should not be construed as limitations of the present invention, and many modifications and improvements can be made by those skilled in the art without departing from the principle of the present invention, which should also be construed as the protection scope of the present invention.
Claims (6)
1. An economical alternating current voltage stabilizing device is characterized in that: the three-phase voltage regulator comprises a plurality of series-connected 3X voltage regulators, each 3X voltage regulator comprises a single-phase voltage regulator TR, a single-phase voltage regulator TS and a single-phase voltage regulator TT, and each 3X voltage regulator comprises a primary winding 3XR1, a primary winding 3XR2, a primary winding 3XS1, a primary winding 3XS2, a primary winding 3XT1, a primary winding 3XT2 and a secondary winding.
2. An economical ac voltage stabilizer according to claim 1, characterized in that: further comprising a triac VTXR1, a triac VTXRX 1, a triac VTXRMAX1, a triac VTXS1, a triac VTXSMAX1, a triac VTXTMAX1, and a triac VTXTMAX1, said primary winding 3XR1 is connected to one end of the triac VTXR1 and the triac VTXR1, said primary winding 3XR1 is connected to one end of the triac VTXR1 and the triac VTXS1, said primary winding 3XS1 is connected to one end of the triac VTXS1, said one end of the triac VTXS1 is connected to said one end of the triac VTXS1, said one end of the triac VTXS1 and said triac VTXS1, said primary winding 72 is connected to said one end of the triac XSXT 1, the other end of bidirectional thyristor VTXR1 is connected in the other end of bidirectional thyristor VTXRMAX1, the other end of bidirectional thyristor VTXR2 is connected with the one end of bidirectional thyristor VTXRMAX3, the other end of bidirectional thyristor VTXS1 is connected in the other end of bidirectional thyristor VTXSMAX1, the other end of bidirectional thyristor VTXS2 is connected with the one end of bidirectional thyristor VTXSMAX3, the other end of bidirectional thyristor VTXT1 is connected in the other end of bidirectional thyristor VTXTMAX1, the other end of bidirectional thyristor VTXT2 is connected with the one end of bidirectional thyristor VTXTMAX 3.
3. An economical ac voltage stabilizer according to claim 2, characterized in that: still include control protection switch QF1, control protection switch QF2, control protection switch QF3, the other end in bidirectional thyristor VTXRMAX3 is connected to control protection switch QF 1's one end, the other end in bidirectional thyristor VTXSMAX3 is connected to control protection switch QF 2's one end, the other end in bidirectional thyristor VTXTMAX3 is connected to control protection switch QF 3's one end, control protection switch QF 1's the other end is connected in A looks output, control protection switch QF 2's the other end is connected in B looks output, the other end in C looks output of control protection switch 3.
4. An economical ac voltage stabilizer according to claim 3, characterized in that: the bidirectional triode thyristor VTXR1, the bidirectional triode thyristor VTXRMAX1, the bidirectional triode thyristor VTXS1, the bidirectional triode thyristor VTXSMAX1, the bidirectional triode thyristor VTXTXTXT 1 and the bidirectional triode thyristor VTXTMAX1 are all connected with an input N line.
5. An economical ac voltage stabilizer according to claim 4, characterized in that: the three-phase voltage compensator is characterized by further comprising an operating system, a main control system and a driving system, wherein the three-phase input voltage, the three-phase input current, the three-phase output voltage, the three-phase output current and each group of 3X compensators are connected to the main control system, the operating system and the driving system are connected to the main control system, the operating system is a touch screen operation interface, and the main control system controls the 3X voltage regulator to work through the driving system.
6. An economical ac voltage stabilizer according to claim 1, characterized in that: also includes a combination of at least a single-phase voltage regulator connected in series or in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110821683.7A CN113489021A (en) | 2021-07-20 | 2021-07-20 | Economical alternating current voltage stabilizing device |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101807087A (en) * | 2010-04-29 | 2010-08-18 | 北京中科富思信息技术有限公司 | AC voltage-stabilizing energy-saving device of compensation transformer |
| CN205509860U (en) * | 2015-09-21 | 2016-08-24 | 国网冀北电力有限公司技能培训中心 | Many correction transformers combination formula single phase alternating current stabiliser |
| RU203267U1 (en) * | 2020-10-28 | 2021-03-29 | Федеральное Государственное Бюджетное Образовательное Учреждение Высшего Образования «Новосибирский Государственный Технический Университет» | AC voltage regulator |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101807087A (en) * | 2010-04-29 | 2010-08-18 | 北京中科富思信息技术有限公司 | AC voltage-stabilizing energy-saving device of compensation transformer |
| CN205509860U (en) * | 2015-09-21 | 2016-08-24 | 国网冀北电力有限公司技能培训中心 | Many correction transformers combination formula single phase alternating current stabiliser |
| RU203267U1 (en) * | 2020-10-28 | 2021-03-29 | Федеральное Государственное Бюджетное Образовательное Учреждение Высшего Образования «Новосибирский Государственный Технический Университет» | AC voltage regulator |
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Application publication date: 20211008 |