CN218549512U - Be applied to electric energy quality flexible adjustment distribution equipment in sewage treatment field - Google Patents
Be applied to electric energy quality flexible adjustment distribution equipment in sewage treatment field Download PDFInfo
- Publication number
- CN218549512U CN218549512U CN202222269153.9U CN202222269153U CN218549512U CN 218549512 U CN218549512 U CN 218549512U CN 202222269153 U CN202222269153 U CN 202222269153U CN 218549512 U CN218549512 U CN 218549512U
- Authority
- CN
- China
- Prior art keywords
- power
- compensation unit
- electric energy
- sewage treatment
- quality flexible
- 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
Images
Classifications
-
- 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
Landscapes
- Control Of Electrical Variables (AREA)
Abstract
The utility model discloses an electric energy quality flexible adjustment distribution device applied to the sewage treatment field, which comprises a transformer, a detection circuit, a controller and an electric energy quality flexible adjustment module; one end of a first coil of the transformer is used as a first load output end; the second coil of the transformer is connected to the controller, and one end of the controller is used as a second load output end; the electric energy quality flexible adjusting module comprises a current compensation unit and a voltage compensation unit; the controller is electrically connected with the current compensation unit and the voltage compensation unit, controls the power compensation action of the current compensation unit and/or the voltage compensation unit according to the input power supply parameters collected by the detection circuit, and compensates the output power supply of the second load output end. The utility model discloses with in the system to the relatively higher load electrical apparatus of power electric energy quality requirement access to sensitive load circuit, eliminate the influence that the power is unusual to these sensitive loads production, reduce the operation accident of system, improve sewage treatment's efficiency and quality.
Description
Technical Field
The utility model relates to a power conditioning equipment technical field, especially a be applied to electric energy quality flexible adjustment distribution equipment in sewage treatment field.
Background
The electrical load in the sewage industry is becoming more complex and diversified, so that users increasingly use faster and more efficient production equipment, for example, various speed regulating devices in a sewage system are becoming mainstream of a transmission system instead of a traditional motor direct driving mode, and the electric energy conversion devices based on power electronics are becoming main electrical loads instead of incandescent lamps, motors, heaters and the like, and accordingly, the problem of safe and stable operation of the electric energy conversion devices becomes the focus of attention of users. In addition, computers, microprocessor-controlled sophisticated electronic and electrical devices are used in large numbers, and these devices are becoming more and more sensitive to the quality of electric power and more dependent on the reliability of the power supply. For example, in the production of large-scale sewage industry, if the power supply of several power frequency cycles is interrupted, serious operation accidents can be caused, so that the cost caused by the problem of power quality is higher and higher.
With the increasing application of various automatic devices, intelligent devices, digital devices, information devices and the like in a power system, the problem of power quality is increasingly serious. At present, the sewage industry has the problem of poorer electric energy quality. Particularly, the low-voltage distribution system of the transformer at the user end is affected by the power supply quality, the type of load equipment in the system and the change of the running state, so that the power quality in the low-voltage distribution system of the transformer at the user end is seriously reduced, each power parameter in the low-voltage distribution system of the transformer at the user end is seriously deviated, the content of electric pollution (harmonic wave, surge and transient current) is increased, the load equipment in the system works in the environment with extremely poor power quality, and the loss and the waste are increased.
Disclosure of Invention
The utility model aims at the above problem, a be applied to the electric energy quality flexible adjustment distribution equipment in sewage treatment field is provided.
The technical scheme of the utility model is that:
a power quality flexible regulation distribution device applied to the field of sewage treatment comprises a transformer, a detection circuit, a controller and a power quality flexible regulation module; a first coil of the transformer is connected in series to a live wire of a mains supply line, and one end of the first coil of the transformer is used as a first load output end; the detection circuit is connected to the mains supply line and is used for acquiring input power supply parameters of the mains supply line; the second coil of the transformer is connected to the controller, and one end of the controller is used as a second load output end; the electric energy quality flexible adjusting module comprises a current compensation unit and a voltage compensation unit; the controller is electrically connected with the current compensation unit and the voltage compensation unit, controls the power compensation action of the current compensation unit and/or the voltage compensation unit according to the input power parameter acquired by the detection circuit, and compensates the output power of the second load output end.
As the preferable technical proposal of the utility model: the power quality flexible regulation distribution equipment comprises a main body part and a control regulation part, wherein a secondary side circuit of the transformer is a main loop of the power quality flexible regulation distribution equipment, the main body part is connected into the main loop in series, and the control regulation part is connected into the main loop in parallel.
Further, the main body portion includes the transformer and a number of contactor switches; the control and regulation part comprises the detection circuit, a controller and a power quality flexible regulation module.
Furthermore, the current compensation unit comprises a current source type converter and a first electromagnetic energy storage coil, and forms an electromagnetic energy storage current compensation module.
Furthermore, the voltage compensation unit comprises a voltage source type converter, a DC chopper and a second electromagnetic energy storage coil, and forms an electromagnetic energy storage voltage compensation module.
Furthermore, the power quality flexible adjustment distribution equipment further comprises an automatic transfer switching equipment ATS, and the automatic transfer switching equipment ATS is used for switching between a mains supply mode and an automatic compensation mode of the power quality flexible adjustment distribution equipment.
Still further, a three-phase balance degree compensation unit is further included, and the three-phase balance degree compensation unit is connected at the transformer.
Furthermore, the three-phase balance compensation unit comprises six additional groups of electromagnetic adjusting coils and three groups of voltage adjusting coils, and a triangular connection mode is formed.
Furthermore, the system also comprises a small amplitude compensation unit which is used for carrying out small amplitude compensation on the voltage change induced by the voltage unbalance of the power grid or the load reason.
Furthermore, the small-amplitude compensation unit is controlled to be connected into a mains line through a bypass switch.
The utility model has the advantages that:
the utility model discloses can be applied to among the sewage treatment system, with in the system to the relatively higher load electrical apparatus of power electric energy quality requirement insert sensitive load circuit, compensate output power under the unusual circumstances of power (for example the power supply interruption of several power frequency cycles etc.), thereby eliminate the power unusual to the influence that these sensitive loads produced, the electric energy quality of sewage treatment system is improved through the mode of dynamic flexible adjustment promptly, with the running accident of reduction system, improve sewage treatment's efficiency and quality.
Drawings
FIG. 1 is a schematic diagram of a main circuit according to an embodiment of the present invention;
FIG. 2 is a schematic block diagram of an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of a current compensation unit according to an embodiment of the present invention;
fig. 4 is a schematic circuit diagram of a voltage compensation unit according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a three-phase balance compensation unit according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a small-amplitude compensation unit according to an embodiment of the present invention.
Detailed Description
The embodiment is as follows:
the embodiments of the present invention will be described in detail below with reference to the accompanying drawings, and it is to be understood that the described embodiments are merely illustrative of some, but not all embodiments of the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
A power quality flexible regulation distribution device applied to the field of sewage treatment comprises a transformer, a detection circuit, a controller and a power quality flexible regulation module; a first coil of the transformer is connected in series to a live wire of a mains supply line, and one end of the first coil of the transformer is used as a first load output end; the detection circuit is connected to the mains supply line and is used for acquiring input power supply parameters of the mains supply line; the second coil of the transformer is connected to the controller, and one end of the controller is used as a second load output end; the electric energy quality flexible adjusting module comprises a current compensation unit and a voltage compensation unit; the controller is electrically connected with the current compensation unit and the voltage compensation unit, controls the power compensation action of the current compensation unit and/or the voltage compensation unit according to the input power parameter acquired by the detection circuit, and compensates the output power of the second load output end.
The sewage treatment system mainly comprises a normal load circuit and a sensitive load circuit, and the load connected into the normal load circuit is mainly load electric appliances with relatively low requirement on the power quality of a power supply in the sewage treatment system, such as conventional electric loads of incandescent lamps, motors, heaters and the like. The load connected into the sensitive load circuit is mainly a load electrical appliance with relatively high requirement on the quality of power supply electric energy in a sewage treatment system, such as various automatic equipment, intelligent equipment, digital equipment and informatization equipment such as precise electronic and electrical equipment controlled by a computer and a microprocessor. In the sewage treatment process of the system, the output power supply is compensated under the condition of power supply abnormity (such as power supply interruption of a plurality of power frequency cycles and the like), so that the influence of the power supply abnormity on the sensitive loads is eliminated, namely, the power quality of the sewage treatment system is improved in a dynamic flexible adjustment mode, the running accidents of the system are reduced, and the efficiency and the quality of sewage treatment are improved.
Referring to fig. 1, a schematic diagram of a main circuit of the power quality flexible adjustment power distribution device in this embodiment is shown, the power quality flexible adjustment power distribution device is mainly divided into a main body part and a control adjustment part, wherein the main body part is connected in series in the main circuit and mainly includes the transformer and a plurality of contactor switches, that is, the main circuit of this embodiment does not have any electronic component, and does not have any component unit that can be broken down or burned by current, so that the service life of the device can be greatly prolonged. The control adjusting part is connected to the main loop in a parallel mode and comprises the detection circuit, a controller and an electric energy quality flexible adjusting module, wherein the detection circuit is connected to the primary side and the secondary side of the transformer to collect relevant parameters of a power supply and feed the relevant parameters back to the controller, so that the controller can control and execute corresponding power supply compensation actions, and the electric energy quality of a load is improved.
The current compensation unit of this embodiment includes a current source converter and a first electromagnetic energy storage coil, and forms an electromagnetic energy storage current compensation module, and a current compensation circuit diagram of the current compensation module is shown in fig. 3, in the following diagram, the current source converter can realize four-quadrant control on the amplitude and phase of the output current of the AC power grid, and exchange active power and reactive power with the AC power grid.
The voltage compensation unit of the embodiment comprises a voltage source type converter, a DC chopper and a second electromagnetic energy storage coil, and forms an electromagnetic energy storage voltage compensation module, a current compensation circuit diagram of the voltage compensation module is shown in an attached figure 4, the chopper in the next figure chops the current of the energy storage coil, and meanwhile, the voltage type converter adjusts the amplitude and the phase of the output voltage of the AC power grid, so that four-quadrant control can be realized, and active power and reactive power are exchanged with the AC power grid. When the mains voltage is higher than the given voltage of the load, the voltage compensation unit absorbs power and carries out negative compensation on the voltage; when the mains voltage is lower than the given voltage of the load, the voltage compensation unit outputs power to perform positive compensation on the voltage.
In the energy storage compensation structure, the electromagnetic energy storage system mainly comprises an energy storage coil, an energy loss protection device, a cooling device, a converter, a controller and the like. The structure principle of the main components of the electromagnetic energy storage module is shown in the attached figure 2. Specifically, the primary side and the secondary side of the transformer are electrically connected with the controller, the controller can collect relevant input power supply information through the detection circuit, and in addition, the controller also integrates relevant information of the current transformer, the electromagnetic energy storage coil and the energy loss protection and cooling device so as to control power supply compensation actions of the current compensation unit and/or the voltage compensation unit. When corresponding compensation is needed, the controller sends a trigger pulse to the converter, so that the current compensation unit and/or the voltage compensation unit are driven to perform power compensation action, and active power and reactive power compensation are performed on an output power supply of the second load output end.
In a preferred embodiment, the power quality flexible adjustment distribution equipment further includes an automatic transfer switching system ATS, which is used to switch between a commercial power mode and an automatic compensation mode of the power quality flexible adjustment distribution equipment. When the flexible power quality regulation distribution equipment works in a mains supply mode, the first load output end serves as a load end, namely, the sensitive load of the sewage treatment system actually works in a conventional mains supply environment, and automatic compensation and adjustment can not be carried out on a working power supply. When the power supply works in the automatic compensation mode, the power quality flexible adjustment power distribution equipment takes the second load output end as a load end, namely the sensitive load of the sewage treatment system actually works in a compensated power supply environment at the moment, and the power quality flexible adjustment power distribution equipment is used for carrying out real-time detection, automatic compensation and adjustment on a mains supply, so that the sensitive load of the sewage treatment system can work in an environment with better power quality, and loss and power waste are reduced.
Referring to the drawings, in the present embodiment, the present invention further includes a three-phase balance compensation unit, which is connected to the transformer and specifically includes six additional sets of electromagnetic adjustment coils and three sets of voltage adjustment coils. A primary coil and an additional coil of the transformer are respectively wound on a three-phase iron core column, wherein a primary side A, a secondary side primary winding a, an electromagnetic balance coil c1, an electromagnetic balance coil b2 and a voltage regulating coil a3 of the transformer are wound on an iron core T1; the primary side B, the secondary side main winding B, the electromagnetic balance coil a1, the electromagnetic balance coil c2 and the voltage regulating coil B3 of the transformer are wound on the iron core T2; the transformer primary side C, the secondary side main winding C, the electromagnetic balance coil b1, the electromagnetic balance coil a2 and the voltage regulating coil C3 are wound on the iron core T3 to form a triangular connection mode, the electromagnetic balance principle is fully utilized, three-phase unbalance of a power supply is automatically compensated to achieve balance, the three-phase unbalance is reduced, and the structural principle of the transformer primary side C, the secondary side main winding C, the electromagnetic balance coil b1, the electromagnetic balance coil a2 and the voltage regulating coil C3 is shown in the attached figure 5.
Referring to the drawings, in some embodiments, a small amplitude compensation unit is provided for only compensating a small amplitude of a voltage variation induced by a voltage unbalance or load factor of the grid voltage to output a voltage within ± 1% of a rated output Ue when the grid voltage is close to a rated value, i.e., a typical supply voltage when there is no voltage sag or rise in the utility grid. In this embodiment, the small compensation unit is controlled to be connected to the mains supply line through the bypass switch in the power quality flexible adjustment power distribution device, and a schematic diagram of the small compensation unit is shown in fig. 6.
The foregoing is illustrative of the preferred embodiments of the present invention only and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof allows for variations, and in short, all variations within the scope of the independent claims of the present invention are within the scope of the present invention.
Claims (10)
1. The utility model provides a be applied to flexible regulation distribution equipment of electric energy quality in sewage treatment field which characterized in that: the device comprises a transformer, a detection circuit, a controller and a power quality flexible adjusting module; a first coil of the transformer is connected in series to a live wire of a mains supply line, and one end of the first coil of the transformer is used as a first load output end; the detection circuit is connected to the mains supply line and is used for acquiring input power supply parameters of the mains supply line; the second coil of the transformer is connected to the controller, and one end of the controller is used as a second load output end; the electric energy quality flexible adjusting module comprises a current compensation unit and a voltage compensation unit; the controller is electrically connected with the current compensation unit and the voltage compensation unit, controls the power compensation action of the current compensation unit and/or the voltage compensation unit according to the input power parameter acquired by the detection circuit, and compensates the output power of the second load output end.
2. The electric energy quality flexible regulation power distribution equipment applied to the field of sewage treatment according to claim 1, characterized in that: the power quality flexible regulation distribution equipment comprises a main body part and a control regulation part, wherein a secondary side circuit of the transformer is a main loop of the power quality flexible regulation distribution equipment, the main body part is connected into the main loop in series, and the control regulation part is connected into the main loop in parallel.
3. The power quality flexible adjusting and power distributing equipment applied to the field of sewage treatment as claimed in claim 2, characterized in that: the main body part comprises the transformer and a plurality of contactor switches; the control and regulation part comprises the detection circuit, a controller and a power quality flexible regulation module.
4. The power quality flexible adjusting and power distributing equipment applied to the field of sewage treatment as claimed in claim 1, characterized in that: the current compensation unit comprises a current source type converter and a first electromagnetic energy storage coil, and forms an electromagnetic energy storage current compensation module.
5. The electric energy quality flexible regulation power distribution equipment applied to the field of sewage treatment according to claim 1, characterized in that: the voltage compensation unit comprises a voltage source type converter, a DC chopper and a second electromagnetic energy storage coil, and forms an electromagnetic energy storage voltage compensation module.
6. The power quality flexible adjusting and power distributing equipment applied to the field of sewage treatment as claimed in claim 1, characterized in that: the electric energy quality flexible adjustment power distribution equipment further comprises an automatic transfer switching system (ATS) for switching between a commercial power mode and an automatic compensation mode of the electric energy quality flexible adjustment power distribution equipment.
7. The electric energy quality flexible regulation power distribution equipment applied to the field of sewage treatment according to claim 1, characterized in that: the transformer also comprises a three-phase balance degree compensation unit which is connected to the transformer.
8. The power quality flexible adjusting distribution equipment applied to the field of sewage treatment as set forth in claim 7, wherein: the three-phase balance compensation unit comprises six additional groups of electromagnetic adjusting coils and three groups of voltage adjusting coils, and a triangular connection mode is formed.
9. The electric energy quality flexible regulation power distribution equipment applied to the field of sewage treatment according to claim 1, characterized in that: the small-amplitude compensation unit is used for carrying out small-amplitude compensation on voltage changes induced by power grid voltage unbalance or load reasons.
10. The electric energy quality flexible regulation power distribution equipment applied to the field of sewage treatment according to claim 9, characterized in that: and the small-amplitude compensation unit is controlled to be connected into a mains supply line through a bypass switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222269153.9U CN218549512U (en) | 2022-08-26 | 2022-08-26 | Be applied to electric energy quality flexible adjustment distribution equipment in sewage treatment field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222269153.9U CN218549512U (en) | 2022-08-26 | 2022-08-26 | Be applied to electric energy quality flexible adjustment distribution equipment in sewage treatment field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218549512U true CN218549512U (en) | 2023-02-28 |
Family
ID=85271381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222269153.9U Active CN218549512U (en) | 2022-08-26 | 2022-08-26 | Be applied to electric energy quality flexible adjustment distribution equipment in sewage treatment field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218549512U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116722455A (en) * | 2023-08-10 | 2023-09-08 | 齐齐哈尔市君威节能科技有限公司 | Intelligent control voltage stabilizing filtering energy storage compensation capacity-increasing comprehensive electricity-saving transmitting cabinet |
-
2022
- 2022-08-26 CN CN202222269153.9U patent/CN218549512U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116722455A (en) * | 2023-08-10 | 2023-09-08 | 齐齐哈尔市君威节能科技有限公司 | Intelligent control voltage stabilizing filtering energy storage compensation capacity-increasing comprehensive electricity-saving transmitting cabinet |
| CN116722455B (en) * | 2023-08-10 | 2023-11-14 | 齐齐哈尔市君威节能科技有限公司 | Intelligent control voltage stabilizing filtering energy storage compensation capacity-increasing comprehensive electricity-saving transmitting cabinet |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Kamran et al. | A novel on-line UPS with universal filtering capabilities | |
| CN103399228B (en) | The total power burn in test circuit of current transformer or frequency converter | |
| CN203405559U (en) | Electronic load of electric energy feedback type | |
| CN110350606B (en) | DC chopper power supply device and method for electric arc furnace | |
| CN109406936B (en) | Alarm protection module for charging pile | |
| CN218549512U (en) | Be applied to electric energy quality flexible adjustment distribution equipment in sewage treatment field | |
| CN109378887B (en) | Charging pile control system | |
| CN202333813U (en) | Multifunctional electric energy quality regulator based on voltage type inverter | |
| CN111934324B (en) | Multifunctional power flow controller suitable for multi-channel double-loop | |
| CN101247073B (en) | Energy feedback and harmonic reactive-load compensation system suitable for multi-group commutating device | |
| CN217935474U (en) | Rectifying and filtering circuit and electric appliance | |
| CN103490425B (en) | A kind of asynchronous generating parallel machine operation voltage-stabilizing system and method | |
| CN209823429U (en) | Three-phase unbalance compensation device | |
| CN201234391Y (en) | Power saving device for lighting | |
| CN102820655B (en) | A kind of power electronic system control method taking into account voltage support and failure current limit | |
| CN210490477U (en) | Electricity saver | |
| CN209948695U (en) | Electric arc furnace DC chopper power supply device | |
| CN109361215B (en) | High-voltage protection module | |
| CN109327064B (en) | Charging pile group current distribution system | |
| CN203720692U (en) | Compensation circuit for 380 V high-capacity stabilized voltage supply | |
| CN207442729U (en) | A kind of electric vehicle driving power control system | |
| CN218603182U (en) | Three-phase alternating current power supply synergistic voltage-stabilizing power-saving device | |
| CN201839011U (en) | SVG (static var generator) static reactive compensation device automatically controlling shunt capacitor switching | |
| CN218771312U (en) | Energy-saving and electricity-saving controller for power distribution equipment | |
| CN117081070B (en) | Power grid friendly IGBT continuous voltage regulation low-voltage high-power rectifying device, water electrolysis hydrogen production power supply and control method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |