CN205986150U - Circuit electric energy quality optimization device and system based on WIFI communication - Google Patents
Circuit electric energy quality optimization device and system based on WIFI communication Download PDFInfo
- Publication number
- CN205986150U CN205986150U CN201621059814.3U CN201621059814U CN205986150U CN 205986150 U CN205986150 U CN 205986150U CN 201621059814 U CN201621059814 U CN 201621059814U CN 205986150 U CN205986150 U CN 205986150U
- Authority
- CN
- China
- Prior art keywords
- circuit
- current
- voltage
- electric energy
- energy quality
- 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
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
- Y02E40/10—Flexible AC transmission systems [FACTS]
-
- 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
- Y02E40/40—Arrangements for reducing harmonics
-
- 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)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The utility model discloses a circuit electric energy quality optimization device and system based on WIFI communication, wherein this system includes controller, WIFI communication unit, intelligent terminal, display element, SVG power unit and condenser compensation unit, and wireless communication is carried out to WIFI communication unit and controller, and the controller is optimized the electric energy quality through detection line voltage or current control SVG power unit and condenser compensation unit. The utility model provides a problem of harmonic and stable system voltage in not high, the system of low pressure circuit unbalanced three phase, reactive compensation precision, enough satisfy device data interaction and state control at the existing field energy of installation simultaneously, it is more convenient that messenger's device is controlled under the circuit pole and is debugged, more practices thrift.
Description
Technical field
This utility model belongs to power system mid ＆ low-voltage line electric energy quality optimizing field and in particular to a kind of be based on WIFI
The circuit electric energy quality optimizing device of communication and system.
Background technology
With the development of national economy, the requirement to the quality of power supply also increasingly improves, but the actual motion in distribution line
In, there is more branch and numerous and diverse wiring, its load is randomly distributed, and there is three-phase imbalance and bear
Lotus, seasonal big with the variation of property round the clock, the presence of nonlinear load, lead in electrical network, there are a large amount of harmonic waves.The asking of various presence
Topic leads to that power factor is low, line loss and transformer loss increase, there is voltage flicker and fluctuation, or even some electrical equipments
It is not normally functioning.Therefore improve power factor of electric network, filter harmonic wave, burning voltage, compensating three-phase unbalance, improve electric energy
Efficiency of transmission, is particularly important in power system.At present, in existing reactive power compensation system, grouping switching capacitor bank,
Reactive power can only be roughly provided, have certain limitation to improving power factor, compensation precision not high it is impossible to accurate balance three
Phase uncompensated load, and filter and affected than larger by system impedance during harmonics.Additionally, reactive power compensation system device peace
It is contained on route lever, climbing is inconvenient, hot line job is easy to casualty accident, allow every reactive power compensator can be in circuit
Enter line traffic control under bar and the mode of debugging is imperative, existing equipment is often entered using the controller of handheld terminal and device
Row communication, every table apparatus must be equipped with a handheld terminal, and handheld terminal versatility is not strong, so may result in cost and increases
Plus, cause to waste, and be inconvenient to carry.
Utility model content
This utility model is in order to solve the above problems it is proposed that a kind of circuit electric energy quality optimizing based on WIFI communication fills
Put, solve that low-voltage circuit three-phase imbalance, reactive-load compensation precision be high, harmonic pollution and stabilisation systemss voltage asks in system
Topic；Disclosure satisfy that device data interaction and state control in erecting bed simultaneously, so that device is controlled under route lever and debug more
Convenient, more save.
To achieve these goals, this utility model adopts following scheme：
A kind of circuit electric energy quality optimizing device based on WIFI communication, including：
Controller, including current detection circuit, voltage detecting circuit and instruction current computing circuit, current detection circuit and
Voltage detecting circuit is all connected with compensated line, and current detection circuit detects harmonic current, reactive current and the injustice of this circuit
At least one in weighing apparatus electric current, voltage detecting circuit detects the voltage of this circuit, and described instruction current computing circuit is examined with electric current
Slowdown monitoring circuit is connected with voltage detecting circuit, for detected according to current detection circuit and voltage detecting circuit harmonic current,
Reactive current, out-of-balance current and voltage calculate and are compensated electric current output instruction signal；
SVG power cell, including current follow-up control circuit, drive circuit and PWM converter, current follow-up control circuit
One end is connected with described instruction current computing circuit, and the other end is connected with drive circuit.Current follow-up control circuit is according to electric current
The command signal of computing circuit and the actual mutual relation compensating electric current, to the different pwm signal of drive circuit output, drive electricity
Road controls PWM converter to compensate electric current, idle fine tuning compensation electricity to line load end output harmonic wave according to different pwm signals
Stream, balance adjustment electric current and voltage-regulation electric current；And
WIFI communication unit, is connected with described controller.
Described controller can be operated in idle preferential, uneven preferential, harmonic wave is preferential, voltage first, only mend idle, only
Mend uneven, only filter harmonic wave or only mend voltage mode, wherein idle preferential, uneven preferential, harmonic wave is preferential, voltage first this four
The all compatible other Three models of any one mode of operation in the pattern of kind.
Described circuit electric energy quality optimizing device arranges capacitor compensation unit, including capacitor and capacitor switching with opening
Close, capacitor switching is connected with instruction current computing circuit, capacitor and line load end respectively with switch, described capacitor is thrown
Cut and control capacitor compensation unit to compensate to compensated line output Large Copacity with switch according to the command signal of current operator circuit
Electric current, the compensation of the coarse adjustment for reactive-load compensation and circuit three-phase low-voltage.
Protection device is set between described SVG power cell and circuit.
Protection device is set between described capacitor compensation unit and circuit.
A kind of circuit electric energy quality optimizing system based on WIFI communication, also includes intelligent terminal, described WIFI communication list
Unit is communicated wirelessly with intelligent terminal, and intelligent terminal for reception is derived from the signal of controller, and sends a signal to controller.
The beneficial effects of the utility model：
(1) low-voltage circuit three-phase imbalance load is efficiently solved based on the circuit electric energy quality optimizing device of WIFI communication
Problem is it is ensured that flow into the three-phase balance of electrical network；
(2) accurately circuit can be carried out with reactive power compensation (perception or capacitive), and the reactive power exporting is even
Continuous adjustable, improve power factor；
(3) stablize receiving end voltage, strengthening system voltage stability, suppress voltage fluctuation and flicker, improve power utilization environment.
(4) harmonics such as load 3,5,7,11 are effectively filtered out；
(5) intelligent terminal can be realized based on the circuit electric energy quality optimizing device of WIFI communication to access and control device
Function, can connect mobile phone, notebook using WIFI hot spot, and user only needs to just can road bar online with mobile phone or notebook
Under, field adjustable and check machine operation at any time, save cost, improve work compared with the communication modes of other wireless terminals
Make efficiency, more ensure that personal safety.High, using flexible, multiple functional, the quality using WIFI communication mode intelligent level
Reliable, timeliness, reliability, capacity scalability and maintainability are good, easy standardization and standardized management.
Brief description
Fig. 1 is this utility model electrical schematic diagram
Fig. 2 is this utility model SVG power cell schematic diagram
Fig. 3 is this utility model controller schematic diagram
Fig. 4 is this utility model three-phase unbalance load compensation schematic diagram
Fig. 5 is this utility model voltage support principle Fig. 1
Fig. 6 is this utility model voltage support principle Fig. 2
Fig. 7 is this utility model active power filtering schematic diagram
Fig. 8 is this utility model WIFI communication block diagram
Wherein, 1- controller, 2-WIFI communication unit, 3- display unit, 4- protector, 5-SVG power cell, 6- protects
Device, 7- capacitor switching switchs, 8- reactor, 9- capacitor, 10- electrical network end, 11- load end, 12- intelligent terminal, 13- electricity
Stream follow-up control circuit, 14- drive circuit, 15-PWM current transformer, 16- current detection circuit, 17- voltage detecting circuit, 18- refers to
Make current operator circuit, 19- line impedance, 20- electric energy quality optimizing device.
Specific embodiment：
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
Fig. 1 gives electrical schematic diagram of the present utility model, including controller 1, WIFI communication unit 2, intelligent terminal 12,
Display unit 3, SVG branch road and capacitor branches.SVG branch road includes protector 4 and SVG power cell 5, and SVG power cell is (such as
Shown in Fig. 2), including PWM converter 15, drive circuit 14 and current follow-up control circuit 13.Capacitor branches include protector
6th, capacitor switching switch 7 (including TSC fling-cut switch, capacitor switching catalyst, combination switch etc.), capacitor 9, electricity
Anti- device 8 (can match).
Controller is (as shown in Figure 3) to pass through detection voltage, electric current, according to selected different working modes, makes different responses.
Three inputs of voltage detecting are respectively connected to A, B, C three-phase of the low-voltage circuit being compensated, and its testing result sends into controller
Voltage sample input.The input of current detecting terminates at the electric current being connected on A, B, C three-phase being compensated low-voltage circuit respectively
Transformer secondary side, sends into controller current sample input.Controller has has idle preferential, uneven preferential, harmonic wave excellent
Elder generation, voltage first, only mend idle, only mend uneven, only filter harmonic wave, only mend 8 kinds of mode of operations of voltage, in idle preferential, harmonic wave
Preferentially, under four kinds of patterns of voltage first, all compatible other three kinds of modes of any one compensation model.When controller be in idle excellent
During first mode of operation, calculate required reactive power, instruction is handed down to capacitor compensation unit, realizes Large Copacity capacitive reactive power work(
The coarse adjustment of rate, also transmitting order to lower levels controls inverter to produce required capacitive reactive power to SVG power cell simultaneously, realizes little Rong
The fine tuning of amount capacitive reactive power.When controller is in uneven priority task pattern, by current sensor detecting system
Electric current, whether analysis judgment system is in unbalanced state, calculates simultaneously and reaches required compensation electric current during poised state, control
SVG power cell processed produces electric current, makes electric current mutually transfer to little phase from big, the final three-phase electricity levelling ensureing inflow electrical network
Weighing apparatus.When controller is in harmonic wave priority task pattern, SVG power cell is controlled to generate and harmonic current equivalence reverse compensation electricity
Flow and inject electrical network, reach the purpose filtering harmonics.When controller is in voltage first mode of operation, by compensating
The method of capacitive or inductance current, to reduce or to increase the pressure drop that line impedance to cause, reaches lifting or reduces load side voltage
Purpose.
Controller is communicated with WIFI communication unit, WIFI communication unit again with intelligent terminal (mobile phone or notebook etc.)
Communicate wirelessly, it is achieved thereby that interaction between controller for the intelligent terminal, make electric energy quality optimizing device and intelligence eventually
End being integrally formed system.Intelligent terminal can utilize WIFI radio communication unit with convenient use person, carries out operation side to device
The parameters such as formula, target power factor, target degree of unbalancedness are configured the reliability service it is ensured that device；Can be to plant failure
The historical data such as warning and working condition change is recorded, and convenient use person is to plant running state analysiss；Can also utilize
WIFI radio communication unit, the state at the scene device being put into and being excised controls, conveniently to device in installation process
Debugged.
Display unit is liquid crystal display screen, has communication function, realizes the information exchange with controller.Power supply can be shown in real time
Voltage, electric current, power factor, active power, reactive power, apparent energy, load current, compensation electric current and waveform etc.；Display
Capacitor running status, SVG power cell overall statuss, when abnormal operating condition, information is simultaneously flashed；There are handss
Dynamic, automatic running mode；There is frequency analyses function；Target power factor, compensation model, target degree of unbalancedness can be carried out
Setting.
Low-voltage circuit three-phase imbalance load can be solved the problems, such as based on the circuit electric energy quality optimizing device of WIFI communication,
Three-phase unbalance load compensation principle (as shown in Figure 4)：Controller passes through current sensor real-time detecting system electric current, and analysis is sentenced
Whether disconnected system is in unbalanced state, calculates simultaneously and reaches required compensation electric current during poised state, and controls SVG power
Unit produces electric current, makes electric current mutually transfer to little phase from big, the final three-phase balance ensureing inflow electrical network, significantly carries
High power quality.Hypothesis A phase current is 25A, and B phase is 20A, and C phase is 15A, and controller controls SVG power cell, makes electricity
Stream moves on to C phase from A phase, so that three-phase current tends to balance, solves the problems, such as laod unbalance.
Low-voltage circuit receiving end voltage can be maintained based on the circuit electric energy quality optimizing device of WIFI communication.Work as low-voltage line
Road load side phase voltage is normal, when other are biphase higher or low, low is mutually come using the method compensating capacity current
Reduce the pressure drop that line impedance causes, reach the purpose of increasing productivity side voltage；To higher mutually using compensation inductance current
Method, to increase the pressure drop that line impedance causes, reduces the purpose (as shown in Figure 5) of load side voltage.When low-voltage circuit is born
When lotus side voltage three-phase is generally low, the method simultaneously providing capacity current using capacitor compensation unit and SVG power cell
To reduce the pressure drop that line impedance causes, to reach the purpose (as shown in Figure 6) of increasing productivity side voltage.
Circuit electric energy quality optimizing device based on WIFI communication can be with compensating power.Controller passes through detection electricity
Pressure, electric current, according to actual power factor and target power factor, discriminatory analysis low-voltage circuit, the need of reactive-load compensation, is to need
Capacitive reactive power is wanted to need for inductive reactive power.When circuit needs capacitive reactive power, controller passes through to control switched capacitor
And the capacity current output of SVG power cell, realize the compensation of inductive load, the thick of capacitive reactive power capacity realized by capacitor
Adjust, SVG power cell realizes fine tuning；When circuit needs lagging reactive power, controller passes through to control the inductance current of SVG
Output is realizing the compensation to capacitive load.
Harmonic wave can be filtered based on the circuit electric energy quality optimizing device of WIFI communication, controller monitors load electricity in real time
Stream, and analog current signal is converted to digital signal, the high speed digital signal processor (DSP) within feeding is carried out to signal
Process, fundamental reactive current harmonic current draw obtains instruction current, SVG power cell can be with opening section filtering capacity
Amount, realizes active power filtering function.SVG power cell passes through current follow-up control circuit and drive circuit, with pulsewidth modulation (PWM)
Signal form sends driving pulse to compensating current occuring circuit, drives PWM converter, generates reversely equivalent compensation electric current injection
Electrical network, thus realize dynamic, quick, the thorough improvement (as shown in Figure 7) to load reactive current harmonic electric current.
The WIFI communication function of the circuit electric energy quality optimizing device based on WIFI communication, electric energy quality optimizing device passes through
Install plus WIFI communication unit is communicated with controller, realize the data of controller and intelligent terminal's (mobile phone or notebook etc.)
Interaction, makes electric energy quality optimizing device and intelligent terminal's being integrally formed system (as shown in Figure 8).Intelligent terminal can conveniently make
User utilizes WIFI radio communication unit, device is carried out, the parameter such as the method for operation, target power factor, target degree of unbalancedness
It is configured the reliability service it is ensured that device；The historical data such as plant failure warning and working condition change can be remembered
Record, convenient use person is to plant running state analysiss；WIFI radio communication unit can also be utilized, at the scene device be thrown
The state entering and excising controls, and conveniently in installation process, device is debugged.
Although the above-mentioned accompanying drawing that combines is described to specific embodiment of the present utility model, not new to this practicality
The restriction of type protection domain, one of ordinary skill in the art should be understood that on the basis of the technical solution of the utility model, ability
Field technique personnel do not need to pay the various modifications that creative work can make or deformation still in protection model of the present utility model
Within enclosing.
Claims (5)
1. a kind of circuit electric energy quality optimizing device based on WIFI communication is it is characterised in that include：
Controller, including current detection circuit, voltage detecting circuit and instruction current computing circuit, current detection circuit and voltage
Testing circuit is all connected with compensated line, and current detection circuit detects harmonic current, reactive current and the imbalance electricity of this circuit
At least one in stream, voltage detecting circuit detects the voltage of this circuit, described instruction current computing circuit and current detecting electricity
Road is connected with voltage detecting circuit, for the harmonic current, idle being detected according to current detection circuit and voltage detecting circuit
Electric current, out-of-balance current and voltage calculate and are compensated electric current output instruction signal；
SVG power cell, including current follow-up control circuit, drive circuit and PWM converter, current follow-up control circuit on one side
It is connected with described instruction current computing circuit, the other end is connected with drive circuit;Current follow-up control circuit is according to current operator
The command signal of circuit and the actual mutual relation compensating electric current, to the different pwm signal of drive circuit output, drive circuit root
PWM converter is controlled to compensate electric current, idle fine tuning compensation electric current, put down to line load end output harmonic wave according to different pwm signals
Weighing apparatus adjusts electric current and voltage-regulation electric current；And
WIFI communication unit, is connected with described controller.
2. circuit electric energy quality optimizing device according to claim 1 it is characterised in that：Described circuit electric energy quality optimizing
Device arrange capacitor compensation unit, include capacitor and capacitor switching switch, capacitor switching use switch respectively with finger
Current operator circuit, capacitor and line load end is made to connect, described capacitor switching switchs according to current operator circuit
Command signal controls capacitor compensation unit to compensate electric current to compensated line output Large Copacity, for the thick harmonic line (of a cubic) of reactive-load compensation
The compensation of road three-phase low-voltage.
3. circuit electric energy quality optimizing device according to claim 1 it is characterised in that：In described SVG power cell and
Protection device is set between circuit.
4. circuit electric energy quality optimizing device according to claim 2 it is characterised in that：In described capacitor compensation unit
Protection device is set and circuit between.
5. a kind of circuit electric energy quality optimizing system based on claim 1 is it is characterised in that also including intelligent terminal, described
WIFI communication unit and intelligent terminal communicate wirelessly, and intelligent terminal for reception is derived from the signal of controller, and sends a signal to
Controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621059814.3U CN205986150U (en) | 2016-09-14 | 2016-09-14 | Circuit electric energy quality optimization device and system based on WIFI communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621059814.3U CN205986150U (en) | 2016-09-14 | 2016-09-14 | Circuit electric energy quality optimization device and system based on WIFI communication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205986150U true CN205986150U (en) | 2017-02-22 |
Family
ID=58040658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621059814.3U Active CN205986150U (en) | 2016-09-14 | 2016-09-14 | Circuit electric energy quality optimization device and system based on WIFI communication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205986150U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109991499A (en) * | 2019-04-19 | 2019-07-09 | 山东省产品质量检验研究院 | Detection device and method for reactive power compensator dynamic response and harmonics restraint |
-
2016
- 2016-09-14 CN CN201621059814.3U patent/CN205986150U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109991499A (en) * | 2019-04-19 | 2019-07-09 | 山东省产品质量检验研究院 | Detection device and method for reactive power compensator dynamic response and harmonics restraint |
| CN109991499B (en) * | 2019-04-19 | 2024-01-30 | 山东省产品质量检验研究院 | Detection device and method for dynamic response and harmonic suppression of reactive power compensation device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106229977B (en) | Circuit electric energy quality optimizing device based on WIFI communication, method and system | |
| CN201260080Y (en) | Device for passive compensation and harmonic wave control for intelligent electric power system | |
| CN102709917B (en) | A kind of dynamic reactive compensation device controlling high pressure based on IGBT | |
| CN101697419B (en) | Integrated controlled system and integrated controlled method for dynamic reactive power compensation based on touch screen, PLC and DSP | |
| CN103475102B (en) | Energy efficiency management terminal based on Internet of Things | |
| CN102354993B (en) | Arc furnace power quality controller based on programmable logic controller (PLC) | |
| CN104362631A (en) | Control method for high-power reactive and harmonic dynamic hybrid compensation system | |
| CN206908302U (en) | Active electric power out-of-balance current compensation device | |
| CN205986150U (en) | Circuit electric energy quality optimization device and system based on WIFI communication | |
| CN204304441U (en) | A kind of reactive power dynamic compensation system | |
| CN206658053U (en) | A kind of mixed type idle compensating control | |
| CN109830967A (en) | A kind of distribution is idle and Harmonic-wave compensation system and its control method | |
| CN204216589U (en) | A kind of be used for that platform district is idle, the quality of power supply and efficiency composite control apparatus | |
| CN109103906A (en) | A kind of three-phase power distribution system and three-phase imbalance compensation device | |
| CN202978280U (en) | Intelligent hybrid high-pressure dynamic reactive power compensation device | |
| CN202910439U (en) | Digital control multifunction inverted arc welding machine | |
| CN208767798U (en) | Dynamic SVG module and phase-change switch mixed type three-phase imbalance governing system | |
| CN204578096U (en) | Low-voltage active electric power filter control system | |
| CN204333963U (en) | A kind of two CSTR high speed stillness wattless occurrence apparatus | |
| CN201282340Y (en) | Magnetic valve type controllable inductor type SVC dynamic reactive compensator | |
| CN201656480U (en) | Active filter and reactive power compensation device | |
| CN206650435U (en) | Hybrid reactive power compensation device | |
| CN202678970U (en) | Electricity energy quality optimizing device | |
| CN104852384A (en) | Reactive dynamic filtering compensation control system | |
| CN107069764A (en) | A kind of mixed type idle compensating control and application method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 250101 building 6, Yingxiu Road, Ji'nan hi tech Development Zone, Shandong, China, 2600 Patentee after: Shandong Hoteam Electrical Co., Ltd. Address before: 250101 building 6, Yingxiu Road, Ji'nan hi tech Development Zone, Shandong, China, 608 Patentee before: Shandong Hoteam Electrical Co., Ltd. |