CN103580498B - High-power energy can the control method of feedback type grid stimulating device and employing thereof - Google Patents
High-power energy can the control method of feedback type grid stimulating device and employing thereof Download PDFInfo
- Publication number
- CN103580498B CN103580498B CN201310582970.2A CN201310582970A CN103580498B CN 103580498 B CN103580498 B CN 103580498B CN 201310582970 A CN201310582970 A CN 201310582970A CN 103580498 B CN103580498 B CN 103580498B
- Authority
- CN
- China
- Prior art keywords
- voltage
- feedback type
- phase
- power
- stimulating device
- 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
- 230000004936 stimulating effect Effects 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000001914 filtration Methods 0.000 claims abstract description 12
- 230000001939 inductive effect Effects 0.000 claims abstract description 11
- 238000004088 simulation Methods 0.000 claims abstract description 6
- 239000003990 capacitor Substances 0.000 claims description 18
- 238000009499 grossing Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Inverter Devices (AREA)
Abstract
The present invention relates to a kind of high-power energy can feedback type grid stimulating device, and it comprises the PWM rectifying part of general DC busbar and power grid analog part is divided; PWM rectifying part comprises input filter unit, three-phase bridge rectification unit; Power grid analog part is divided and is comprised three single-phase inverters, output filtering unit and isolated location.Above-mentioned high-power energy can the control method that adopts of feedback type grid stimulating device be: PWM rectifying part adopts and comprises the outer voltage of phase-locked loop, the double-closed-loop control device of inductive current inner ring to control the amplitude of electric current and waveform and DC bus-bar voltage; Power grid analog part divides the voltage magnitude and the waveform that adopt the numerical model analysis three close-loop control device comprising inductive current instantaneous value, instantaneous voltage and voltage effective value to carry out control simulation electrical network.Net side of the present invention power factor (PF) is high, can realize energy feedback to electrical network, and breaks through the restriction that switching frequency is not high, bandwidth is lower.
Description
Technical field
The present invention relates to a kind of high-power energy can the control method of feedback type grid stimulating device and employing thereof, namely a kind of can realize any network wave and energy all can the energy-saving high-power grid stimulating device of feedback grid and this device adopt control method.
Background technology
Traditional grid stimulating device power is usually less, and is non-feedback type.When needing the power of absorbing load feedback, high-power resistance is usually adopted to absorb energy.This mode consumes energy seriously, and heat radiation is difficult to process.When power becomes large, power supply output bandwidth step-down, can not meet the requirement of client to high dynamic response speed.
Summary of the invention
The object of this invention is to provide a kind of high-power, high bandwidth and high dynamic response speed, energy can the grid stimulating device of feedback type.
For achieving the above object, the technical solution used in the present invention is:
A kind of high-power energy can feedback type grid stimulating device, and it comprises the PWM rectifying part of general DC busbar and power grid analog part is divided;
Described PWM rectifying part comprises with the input filter unit be respectively connected mutually of electrical network, is connected and the three-phase bridge rectification unit be made up of wholly-controled device with described filter unit; Described power grid analog part divide comprise three respectively with the single-phase inverter that three-phase bridge rectification unit is connected, the output filtering unit that be connected corresponding with each single-phase inverter and isolated location, the output of the single-phase inverter described in each forms three-phase through output filtering unit and exports and be connected with equipment under test after isolated location.
In such scheme, described input filter unit comprises and the input filter inductance be respectively connected mutually of electrical network and input filter capacitor.
Described three-phase bridge rectification unit comprises the wholly-controled device described in six, the wholly-controled device described in six group and be connected with the three-phase of electrical network respectively between two.
The rectifying part of described PWM also comprises the smoothing buffer electric capacity of the DC side being connected to described three-phase bridge rectification unit.
Described power grid analog part is divided and is also comprised multiple busbar voltage Support Capacitor being connected to the DC side of single-phase inverter described in each.
Single-phase inverter described in each is formed by several wholly-controled device.
Described output filtering unit comprises output inductor and output filter capacitor.
Described isolated location comprises isolating transformer.
Above-mentioned high-power energy can feedback type grid stimulating device adopt a control method, described PWM rectifying part and described power grid analog part divide separate control; Described PWM rectifying part adopts and comprises the outer voltage of phase-locked loop, the double-closed-loop control device of inductive current inner ring to control the amplitude of electric current and waveform and DC bus-bar voltage; Described power grid analog part divides the voltage magnitude and the waveform that adopt the numerical model analysis three close-loop control device comprising inductive current instantaneous value, instantaneous voltage and voltage effective value to carry out control simulation electrical network.
Because technique scheme is used, the present invention compared with prior art has following advantages: grid stimulating device net side of the present invention power factor (PF) is high, energy feedback can be realized to electrical network, and break through the restriction that higher power device switching frequency is not high, bandwidth is lower, be that a kind of energy-saving high-power energy can feedback type grid stimulating device, be applicable to various AC power plant.
Accompanying drawing explanation
Accompanying drawing 1 is that high-power energy of the present invention can the circuit theory diagrams of feedback type grid stimulating device.
Accompanying drawing 2 is that high-power energy of the present invention can the control principle drawing of PWM rectifying part in feedback type grid stimulating device.
Accompanying drawing 3 is that high-power energy of the present invention can power grid analog part is divided in feedback type grid stimulating device control principle drawing.
Embodiment
Below in conjunction with embodiment shown in the drawings, the invention will be further described.
Embodiment one: shown in accompanying drawing 1.A kind of high-power energy can feedback type grid stimulating device, and it comprises the PWM rectifying part of general DC busbar and power grid analog part is divided.
PWM rectifying part comprises with the input filter unit be respectively connected mutually of electrical network, is connected and the three-phase bridge rectification unit be made up of wholly-controled device with filter unit.Wherein, input filter unit comprises each phase with electrical network, i.e. the input filter inductance L 1, L2 and the input filter capacitor C1-C3 that are connected of U, V, W.Three-phase bridge rectification unit comprises six wholly-controled device Q1-Q6, six wholly-controled device Q1-Q6 one group and be connected with the three-phase of electrical network respectively between two.This wholly-controled device Q1-Q6 can select MOSFET or IGBT.Smoothing buffer electric capacity C4 is also connected with in the DC side of the three-phase bridge rectification unit of the rectifying part of PWM.
Electrical network is connected to through input filter inductance L 1, L2 the three-phase bridge rectification unit be made up of high-speed switching devices Q1-Q6.The Main Function of input filter inductance L 1, L2 and input filter capacitor C1-C3 plays to suppress by the higher harmonic current produced in switching device Q1-Q6 switching process, makes input current waveform smooth, avoid having an impact to electrical network.The Main Function of the smoothing buffer electric capacity C4 of DC side is smooth direct current side voltage and buffering energy.And this holistic Main Function of PWM rectifying part controls as desired waveform by the HF switch of switching device Q1-Q6 by input current, and by the DC bus stabilization of power grids to the magnitude of voltage of expecting, and can bear that energy is counter fills with.
Power grid analog part divide comprise three respectively with the single-phase inverter that three-phase bridge rectification unit is connected, the output filtering unit that be connected corresponding with each single-phase inverter and isolated location.The DC side of each single-phase inverter is all connected with busbar voltage Support Capacitor C5-C10.Each single-phase inverter is formed by several wholly-controled device Q7-Q30, and this wholly-controled device Q7-Q30 also can select MOSFET or IGBT.Output filtering unit comprises output inductor L3-L8 and output filter capacitor C11-C13, and isolated location comprises isolating transformer T1-T6.The output of each single-phase inverter forms three-phase through output filtering unit and exports and be connected with equipment under test after isolated location, concrete, the outlet side of a single-phase inverter is after output inductor L3 and L6, again through isolating transformer T1 and T4, form A phase finally by output filter capacitor C11; The outlet side of a single-phase inverter after output inductor L4 and L7, then through isolating transformer T2 and T5, forms B phase finally by output filter capacitor C12; The outlet side of a single-phase inverter after output inductor L5 and L8, then through isolating transformer T3 and T6, forms C phase finally by output filter capacitor C13.
Equipment under test accesses three single-phase inverters be made up of high-speed switching devices Q7-Q30 through isolating transformer T1-T6 and output filter capacitor C11-C13.The Main Function of busbar voltage Support Capacitor C5-C10 plays DC bus-bar voltage to support.The Main Function of output inductor L3-L8 and output filter capacitor C11-C13 be filtering by the high order harmonic component produced in switching device Q7-Q30 switching process, make output voltage waveforms smooth and reach expection setting waveform, playing output filtering effect.Isolating transformer T1-T6 realizes voltage matches between equipment under test and test macro and electrical isolation.Power grid analog part divides this holistic Main Function to be set waveform by the HF switch of switching device Q7-Q30 by output voltage control, and can bear that energy is counter fills with.
In this circuit, the input filter inductance L 1 of PWM rectifying part, L2 can be respectively 3 single-phase electricity sensors; The output inductor L3-L8 that power grid analog part is divided can be provided by the leakage inductance of isolating transformer T1-T6; The smoothing buffer electric capacity C4 of PWM rectifying part also can divide equally in the busbar voltage Support Capacitor C5-C10 that power grid analog part divides respectively, or busbar voltage Support Capacitor C5-C10 is merged into smoothing buffer electric capacity C4; Wholly-controled device Q1-Q30 and diode D1-D30 can be independent device and also can be integrated device (Q1 and D1 is corresponding, Q2 and D2 is corresponding, and the rest may be inferred); Isolating transformer T1 and T4, T2 and T5, T3 and T6 also can merge into a single whole transformer.Therefore all devices only represent part category in Fig. 1, do not represent device number.
Above-mentioned high-power energy can feedback type grid stimulating device adopt control method be that PWM rectifying part and power grid analog part divide separate control.
With reference to shown in accompanying drawing 1 and accompanying drawing 2, PWM rectifying part adopts and comprises the outer voltage of phase-locked loop, the double-closed-loop control device of inductive current inner ring to control the amplitude of electric current and waveform and DC bus-bar voltage.
Concrete, outer voltage adopts PI controller to control instantaneous value, improves DC bus dynamically and steady-state behaviour; Frequency, phase place and amplitude detection when being adapted to grid balance soft phase-locked employing single synchronous coordinate system software phase-lock loop technology effective; Current inner loop adopts by electric current after abc/DQ conversion, to the control mode that D, Q value adopts PI controller to control separately; The control of Qref=0 can make the pure active power of system consumption and harmonic carcellation electric current, improves the power factor (PF) of system; When energy back is to electrical network, Qref=0 can realize pure meritorious feedback, and Qref ≠ 0 also can to the idle composition of power network compensation part; Outer voltage and current inner loop respectively through after pi regulator, through DQ/abc conversion through after generate PWM_A, PWM_B, PWM_C again through drive circuit generation Q1-Q6 drive singal opening and shutoff to control Q1-Q6.
Shown in accompanying drawing 1 and accompanying drawing 3, power grid analog part divides the voltage magnitude and the waveform that adopt the numerical model analysis three close-loop control device comprising inductive current instantaneous value, instantaneous voltage and voltage effective value to carry out control simulation electrical network.
Concrete, inner ring is the inductive current instantaneous value ring of simulation, and adjuster is proportional controller, and the control of current inner loop gathers three pole reactor electric current, the three pole reactor electric current namely gathered.A phase, B phase, C phase adopt identical and separate control mode respectively, are often divided into two modules independently inductive current inner ring mutually, export and compare as electric current loop is given, adjust output duty cycle in real time using Voltage loop.Outer voltage is the output voltage instantaneous value ring of simulation, and adjuster is proportional controller, and Voltage loop detects the three phase capacitance voltage of transformer secondary and given voltage waveform compares.Voltage effective value ring is digital control ring, cycle regulates, proportional and integral controller, exporting effective value regulates the effective value of three phase capacitance voltage as feedback, form given sine wave by Waveform composition algorithm to be exported by DA, after Voltage loop adjuster and inductive current inner ring adjuster, produce opening and shutoff of the drive singal control Q7-Q30 of Q7-Q30 through drive circuit.This power grid analog part divides the equivalent switching frequency adopting series multiplex circuit design to improve device.
This high-power energy can feedback type grid stimulating device by interface setting, instruction is sent to high speed digital signal processor, device output voltage is changed according to the sequential logic of setting, comprise: the speed of frequency, phase place and change and holding time, or involve m-Acetyl chlorophosphonazo to output voltage superposition is humorous.
Above-mentioned high-power energy can utilize H bridge serial connection technology to improve the equivalent switching frequency of device by feedback type grid stimulating device, the dynamic characteristic of high-power grid stimulating device is met with the bandwidth improving system, can the voltage fluctuation of simulating grid, frequency fluctuation, voltage flicker, to fall and the characteristic of interrupting temporarily, and 2-25 subharmonic and m-Acetyl chlorophosphonazo voltage analog can be realized, its net side power factor (PF) is high, energy back can be realized energy feedback to electrical network, break through the restriction that higher power device switching frequency is not high, bandwidth is lower.That a kind of energy-saving high-power energy can feedback type grid stimulating device.
Above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (8)
1. high-power energy can a feedback type grid stimulating device, it is characterized in that: it comprises the PWM rectifying part of general DC busbar and power grid analog part is divided;
Described PWM rectifying part comprises with the input filter unit be respectively connected mutually of electrical network, is connected and the three-phase bridge rectification unit be made up of wholly-controled device with described filter unit; Described power grid analog part divide comprise three respectively with the single-phase inverter that three-phase bridge rectification unit is connected, the output filtering unit that be connected corresponding with each single-phase inverter and isolated location, the output of the single-phase inverter described in each forms three-phase through output filtering unit and exports and be connected with equipment under test after isolated location;
Described high-power energy can feedback type grid stimulating device adopt control method be: described PWM rectifying part and described power grid analog part divide separate control; Described PWM rectifying part adopts and comprises the outer voltage of phase-locked loop, the double-closed-loop control device of inductive current inner ring to control the amplitude of electric current and waveform and DC bus-bar voltage; Described power grid analog part divides the voltage magnitude and the waveform that adopt the numerical model analysis three close-loop control device comprising inductive current instantaneous value, instantaneous voltage and voltage effective value to carry out control simulation electrical network.
2. high-power energy according to claim 1 can feedback type grid stimulating device, it is characterized in that: the input filter inductance that described input filter unit comprises and electrical network each is connected mutually and input filter capacitor.
3. high-power energy according to claim 1 can feedback type grid stimulating device, it is characterized in that: described three-phase bridge rectification unit comprises the wholly-controled device described in six, the wholly-controled device described in six group and be connected with the three-phase of electrical network respectively between two.
4. high-power energy according to claim 1 can feedback type grid stimulating device, it is characterized in that: the rectifying part of described PWM also comprises the smoothing buffer electric capacity of the DC side being connected to described three-phase bridge rectification unit.
5. high-power energy according to claim 1 can feedback type grid stimulating device, it is characterized in that: described power grid analog part is divided and also comprised multiple busbar voltage Support Capacitor being connected to the DC side of single-phase inverter described in each.
6. high-power energy according to claim 1 can feedback type grid stimulating device, it is characterized in that: the single-phase inverter described in each is formed by several wholly-controled device.
7. high-power energy according to claim 1 can feedback type grid stimulating device, it is characterized in that: described output filtering unit comprises output inductor and output filter capacitor.
8. high-power energy according to claim 1 can feedback type grid stimulating device, it is characterized in that: described isolated location comprises isolating transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310582970.2A CN103580498B (en) | 2013-11-19 | 2013-11-19 | High-power energy can the control method of feedback type grid stimulating device and employing thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310582970.2A CN103580498B (en) | 2013-11-19 | 2013-11-19 | High-power energy can the control method of feedback type grid stimulating device and employing thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103580498A CN103580498A (en) | 2014-02-12 |
| CN103580498B true CN103580498B (en) | 2016-03-23 |
Family
ID=50051608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310582970.2A Active CN103580498B (en) | 2013-11-19 | 2013-11-19 | High-power energy can the control method of feedback type grid stimulating device and employing thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103580498B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105826951A (en) * | 2016-06-07 | 2016-08-03 | 维尔纳（福建）电机有限公司 | Reconfigurable single-phase digital variable-frequency generator |
| CN106253735B (en) * | 2016-09-21 | 2019-05-31 | 陈钢 | The step inverter of charging and brake energy recycling is driven for electric car |
| CN110932383B (en) * | 2019-12-04 | 2021-01-15 | 厦门市爱维达电子有限公司 | UPS parallel current-sharing control method sharing DC bus |
| CN111969861B (en) * | 2020-08-06 | 2022-07-26 | 国网河南省电力公司电力科学研究院 | High-power inter-harmonic current source and control method thereof |
| CN112152469A (en) * | 2020-10-14 | 2020-12-29 | 浙江省机电产品质量检测所有限公司 | Repetitive control method for three-phase AC electronic load |
| CN112271911A (en) * | 2020-11-06 | 2021-01-26 | 西安爱科赛博电气股份有限公司 | Three-phase independent adjustable alternating current electronic load circuit and control method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1949645A (en) * | 2006-10-13 | 2007-04-18 | 杜心林 | Energy feedback power unit |
| CN102055347A (en) * | 2010-07-22 | 2011-05-11 | 荣信电力电子股份有限公司 | Modular multilevel converter (MMC)-based transformer-free four-quadrant high-voltage variable frequency power supply topological structure |
| CN202837418U (en) * | 2012-08-02 | 2013-03-27 | 苏州万可顶钇电源有限公司 | Grid-connected inverter test equipment and inverter energy recharge simulation grid test system |
| CN202872650U (en) * | 2012-07-10 | 2013-04-10 | 辽宁荣信电气传动技术有限责任公司 | H-bridge-based high-voltage stabilized power supply |
| CN103078316A (en) * | 2013-01-06 | 2013-05-01 | 湖北省电力公司电力科学研究院 | Network voltage disturbance generating device and control method thereof |
-
2013
- 2013-11-19 CN CN201310582970.2A patent/CN103580498B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1949645A (en) * | 2006-10-13 | 2007-04-18 | 杜心林 | Energy feedback power unit |
| CN102055347A (en) * | 2010-07-22 | 2011-05-11 | 荣信电力电子股份有限公司 | Modular multilevel converter (MMC)-based transformer-free four-quadrant high-voltage variable frequency power supply topological structure |
| CN202872650U (en) * | 2012-07-10 | 2013-04-10 | 辽宁荣信电气传动技术有限责任公司 | H-bridge-based high-voltage stabilized power supply |
| CN202837418U (en) * | 2012-08-02 | 2013-03-27 | 苏州万可顶钇电源有限公司 | Grid-connected inverter test equipment and inverter energy recharge simulation grid test system |
| CN103078316A (en) * | 2013-01-06 | 2013-05-01 | 湖北省电力公司电力科学研究院 | Network voltage disturbance generating device and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103580498A (en) | 2014-02-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106026754B (en) | Multi-purpose bidirectional power power experiment power supply system and its control method | |
| CN103580498B (en) | High-power energy can the control method of feedback type grid stimulating device and employing thereof | |
| Shao et al. | Modeling and elimination of zero-sequence circulating currents in parallel three-level T-type grid-connected inverters | |
| Edwin et al. | Dynamic modeling and control of interleaved flyback module-integrated converter for PV power applications | |
| WO2019029694A1 (en) | Conversion circuit, control method, and power supply device | |
| Banaei et al. | Power quality improvement based on novel power electronic transformer | |
| CN102769289A (en) | Three-phase unified power quality conditioner (UPQC) topological circuit based on modular multilevel converter (MMC) and pre-charging method of three-phase UPQC topological circuit | |
| CN107888073B (en) | Alternating current-direct current hybrid energy router of all-round soft switch | |
| CN103094918B (en) | A kind of single-phase grid-connected device improving the quality of power supply | |
| CN104253549A (en) | LCL filtering-based circuit topology structure of high-power PWM (pulse-width modulation) rectifier | |
| CN105958808A (en) | Control method of photovoltaic grid-connected inverter | |
| Chen et al. | Low-harmonic-input three-phase rectifier with passive auxiliary circuit: Comparison and design consideration | |
| CN209860804U (en) | Single-phase power supply topological structure based on cascade high-voltage frequency converter | |
| Xiaofei et al. | Research on new algorithm of droop control | |
| Tongzhen et al. | Topology and control strategy of upqc based on high frequency isolation dc/dc converter | |
| CN103580040A (en) | Self-adaptive compensation device for distribution transformer | |
| Yan et al. | Multi-objective optimization design for active damping LCL grid-connected | |
| Guo et al. | Research on topology and control of household energy routers based on direct AC/AC power electronic transformer | |
| CN204190641U (en) | Based on the high-power PWM rectifier circuit topological structure of LCL filtering | |
| CN202085077U (en) | High-voltage frequency converter | |
| CN201860122U (en) | Current type multilevel converter applied to wind power synchronization | |
| CN213125858U (en) | High-power fundamental current or fundamental current and harmonic current generating device | |
| CN203135444U (en) | BN-SVG static war generator | |
| CN203219200U (en) | Three-phase high power factor grid-connected inverter | |
| Sarali et al. | Mitigation of harmonics using thyristor based 12 pulse voltage source PWM rectifier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: High-power energy feedback type power grid analog device and control method adopted in same Effective date of registration: 20171013 Granted publication date: 20160323 Pledgee: Suzhou hi tech Zone SME Company limited by guarantee Pledgor: SUZHOU AIKE BORUI POWER SUPPLY TECHNOLOGY Co.,Ltd. Registration number: 2017320010067 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 215163 590 Songhua River Road, hi tech Zone, Suzhou, Jiangsu Patentee after: SUZHOU ACTIONPOWER POWER SUPPLY TECHNOLOGY Co.,Ltd. Address before: 215163 No. 189 Kunlun mountain road, hi tech Zone, Suzhou, Jiangsu Patentee before: SUZHOU AIKE BORUI POWER SUPPLY TECHNOLOGY Co.,Ltd. |
|
| PM01 | Change of the registration of the contract for pledge of patent right |
Change date: 20181105 Registration number: 2017320010067 Pledgor after: SUZHOU ACTIONPOWER POWER SUPPLY TECHNOLOGY Co.,Ltd. Pledgor before: SUZHOU AIKE BORUI POWER SUPPLY TECHNOLOGY Co.,Ltd. |
|
| PM01 | Change of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20181116 Granted publication date: 20160323 Pledgee: Suzhou hi tech Zone SME Company limited by guarantee Pledgor: SUZHOU ACTIONPOWER POWER SUPPLY TECHNOLOGY Co.,Ltd. Registration number: 2017320010067 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: High-power energy feedback type power grid analog device and control method adopted in same Effective date of registration: 20181130 Granted publication date: 20160323 Pledgee: Suzhou hi tech Zone SME Company limited by guarantee Pledgor: SUZHOU ACTIONPOWER POWER SUPPLY TECHNOLOGY Co.,Ltd. Registration number: 2018320010045 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220623 Granted publication date: 20160323 Pledgee: Suzhou hi tech Zone SME Company limited by guarantee Pledgor: SUZHOU ACTIONPOWER POWER SUPPLY TECHNOLOGY Co.,Ltd. Registration number: 2018320010045 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |