CN2634697Y - Direct tracking controlled regenerated energy feedback power grid device - Google Patents
Direct tracking controlled regenerated energy feedback power grid device Download PDFInfo
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- CN2634697Y CN2634697Y CN 03250089 CN03250089U CN2634697Y CN 2634697 Y CN2634697 Y CN 2634697Y CN 03250089 CN03250089 CN 03250089 CN 03250089 U CN03250089 U CN 03250089U CN 2634697 Y CN2634697 Y CN 2634697Y
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- China
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- current
- voltage
- tracking control
- circuit
- electrical network
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Abstract
A regenerative energy feedback power network device in direct tracking control is characterized in that the device consists of a regenerative energy voltage regulation circuit (1), a full-bridge inverter (2), a current tracking control circuit (3), inductance L <2> (4), a single phase alternating current network e <s> (5) and a command current sampling circuit (6), wherein, a regenerative energy conversion circuit (1) converts the regenerative energy to the direct voltage that is necessary to the full-bridge inverter (2); the voltage signal of the power network is directly sampled as a command signal for the current tracking through the command current sampling circuit (6) and through the current tracking control circuit (3), driving pulse signals are produced to control the working of the four large power electronic switches S <1> to S <4> of the full-bridge inverter (2) respectively; the inductance L <2> (4) is used to control the impulse current caused by the instantaneous voltage difference of the direct loop voltage U <d> and the single phase alternating current network voltage e <s>, thus causing the current i<s> in the power network to be sine wave current which is co-rotating with the single phase alternating current network voltage and realizing the high-power and factor-time power transmission network.
Description
One, technical field
The utility model relates to a kind of Way of Regenerating Energy Feedback electrical network device of direct tracking Control, belongs to electric and electronic technical field.
Two, background technology
The electric energy that discharge test, charging and discharging of accumulator and the various generation of electricity by new energy device of heavy load electric product before dispatching from the factory produced how reliably in high quality the loopback electrical network be an important problem.The present full-bridge type inversion scheme that is operated in the SPWM state that adopts mostly makes that the output voltage of inverter and line voltage are approaching with width of cloth frequency homophase together, to satisfy the condition of the accurate simultaneous interconnecting of electric power system.As Yao Weizheng, Pan Sanbo, Li Zhengli, Yi Yingping " power electronic technology " 2002 (2) 10～12, the design of sinusoidal wave inversion storage battery feedback electric discharge device; Li Liwei, Zou Jiyan " Automation of Electric Systems " 2003 (6) 80～83, battery discharging energy grid-connecting apparatus etc. all has report.But realize that this scheme needs all too many levels such as SPWM pulse generation, genlock, low-pass filtering, this has just increased the complexity of system design, has improved cost simultaneously, has reduced reliability and economic benefit.
Three, summary of the invention
The purpose of this utility model is the Way of Regenerating Energy Feedback electrical network device of a kind of direct tracking Control of proposing at the deficiencies in the prior art.This device has been realized the High Power Factor loopback electrical network of regenerated energy, has reached the effect of energy-saving and environmental protection.
The purpose of this utility model is realized by following technical measures:
Directly the Way of Regenerating Energy Feedback electrical network device of tracking Control is by regenerated energy voltage regulator circuit, full-bridge inverter, current tracking control circuit, inductance L
2, single phase alternating current (A.C.) electrical network e
sForm with the instruction current sample circuit.The regenerated energy change-over circuit is by regenerated energy V
S, inductance L
1, switching tube S
5, diode D
1Form with energy-storage travelling wave tube C.The current tracking control circuit by stagnant chain rate, phase-splitting control and isolation drive form.The above-mentioned circuit connecting mode of respectively organizing electronic component is as follows: the regenerated energy voltage regulator circuit is with regenerated energy V
SSend energy-storage travelling wave tube C to, and regulate the voltage U on the control energy-storage travelling wave tube C
d, supply with by high-power electronic switch S
1～S
4The DC/AC full-bridge inverter of forming.The electric current that flows into electrical network and the stagnant chain rate of instruction current signal in the current tracking control circuit that obtains by the instruction current sample circuit, after the phase-splitting control, isolation drive, 4 high-power electronic switch S in the drive controlling full-bridge inverter
1～S
4Work.Inductance L
2Connect full-bridge inverter output and single phase alternating current (A.C.) electrical network e
s, restriction direct current loop voltag U
dWith e
sThe impulse current that the pressure reduction of instantaneous value causes makes input power network current i
sThe trace command current signal changes, thus realize regenerated energy with line voltage e
sThe form loopback electrical network of synchronous sine-wave current.
The utlity model has following advantage:
1, realizes the High Power Factor loopback electrical network of regenerated energy, reached the effect of energy-saving and environmental protection.
2, control method is simple, and circuit is realized easily.
3, reliable operation, response speed is fast.
Make simply, hardware circuit is few, and cost significantly reduces.
Four, description of drawings
Fig. 1 is the structured flowchart of the Way of Regenerating Energy Feedback electrical network device of direct tracking Control.
Fig. 2 is the circuit theory diagrams of the Way of Regenerating Energy Feedback electrical network device of direct tracking Control.
1 regenerated energy voltage regulator circuit, 2 full-bridge inverters, 3 current tracking control circuits, 4 inductance L
2, 5 one-way communication electrical network e
s, 6 instruction current sample circuits, 7 stagnate chain rate, 8 phase-splittings control, 9 isolation drive.
Five, its body execution mode
Below by embodiment the utility model is specifically described; be necessary to be pointed out that at this following examples only are used for the utility model is further specified; can not be interpreted as the restriction to the utility model protection range, the person skilled in the art in this field can make some nonessential improvement and adjustment according to above-mentioned content of the present utility model.
Embodiment
Directly the Way of Regenerating Energy Feedback electrical network device of tracking Control is shown in Fig. 1～2, and it is by regenerated energy voltage regulator circuit 1, full-bridge inverter 2, current tracking control circuit 3, inductance L
24, AC network e
s5 and instruction current sample circuit 6 form.Regenerated energy voltage regulator circuit 1 is by regenerated energy V
S, inductance L
1, switching tube S
5, diode D
1Form with energy-storage travelling wave tube C.Full-bridge inverter 2 is by high-power electronic switch S
1～S
4Form.Current tracking control circuit 3 by stagnant chain rate than 7, phase-splitting control 8, isolation drive 9 forms.The above-mentioned circuit connecting mode of respectively organizing electronic component is as follows: regenerated energy voltage regulator circuit 1 by charge/discharge control circuit with regenerated energy V
SSending energy-storage travelling wave tube C to realizes.Voltage U on the energy-storage travelling wave tube C
dSupply is by high-power electronic switch S
1～S
4The DC/AC full-bridge inverter of forming 2.Flow into power network current and the stagnant chain rate of instruction current signal in current tracking control circuit 3 that obtains by instruction current sample circuit 6 than 7, after the phase-splitting control 8, isolated drive circuit 9,4 high-power electronic switch S in the drive controlling full-bridge inverter 2
1～S
4Work.Inductance L
24 connect full-bridge inverter 2 outputs and AC network e
s5, restriction direct current loop voltag U
dWith e
sThe impulse current that pressure reduction caused of instantaneous value makes input power network current i
sThe trace command current signal changes, thus realize regenerated energy with line voltage e
sThe form loopback electrical network of synchronous sine-wave current.
Claims (3)
1, the Way of Regenerating Energy Feedback electrical network device of direct tracking Control is characterized in that this device is by regenerated energy voltage regulator circuit (1), full-bridge inverter (2), current tracking control circuit (3), inductance L
2(4), single phase alternating current (A.C.) electrical network e
s(5) and instruction current sample circuit (6) form, regenerated energy voltage regulator circuit (1) is adjusted to the needed direct voltage of full-bridge inverter (2) with regenerated energy, by the command signal of instruction current sample circuit (6) Direct Sampling mains voltage signal as current tracking, through current tracking control circuit (3) afterwards, 4 high-power electronic switch S in the drive controlling full-bridge inverter (2)
1～S
4Work utilizes inductance L
2(4) restriction direct current loop voltag U
dWith the impulse current that the pressure reduction of monophase current line voltage es instantaneous value causes, make the current i of input electrical network
sFor with single phase alternating current (A.C.) electrical network voltage e
s(5) sine-wave current of homophase, thereby the High Power Factor loopback electrical network of realization regenerated energy.
2, the Way of Regenerating Energy Feedback electrical network device of direct current tracking control according to claim 1 is characterized in that regenerated energy change-over circuit (1) is by regenerated energy V
s, inductance L
1, switching tube S
5, diode D
1Form with energy-storage travelling wave tube C.
3, the Way of Regenerating Energy Feedback electrical network device of direct current tracking control according to claim 1 is characterized in that (8) are controlled in (7), phase-splitting to current tracking control circuit (3), isolation drive (9) is formed by stagnant chain rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03250089 CN2634697Y (en) | 2003-08-26 | 2003-08-26 | Direct tracking controlled regenerated energy feedback power grid device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03250089 CN2634697Y (en) | 2003-08-26 | 2003-08-26 | Direct tracking controlled regenerated energy feedback power grid device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2634697Y true CN2634697Y (en) | 2004-08-18 |
Family
ID=34293784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03250089 Expired - Fee Related CN2634697Y (en) | 2003-08-26 | 2003-08-26 | Direct tracking controlled regenerated energy feedback power grid device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2634697Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826733A (en) * | 2010-05-06 | 2010-09-08 | 苏州元泰自动化科技有限公司 | System capable of feeding load power energy back to commercial power network |
| CN104242703B (en) * | 2013-06-18 | 2017-05-17 | 纽福克斯光电科技（上海）有限公司 | Constant-current current-limiting inverter |
-
2003
- 2003-08-26 CN CN 03250089 patent/CN2634697Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826733A (en) * | 2010-05-06 | 2010-09-08 | 苏州元泰自动化科技有限公司 | System capable of feeding load power energy back to commercial power network |
| CN104242703B (en) * | 2013-06-18 | 2017-05-17 | 纽福克斯光电科技（上海）有限公司 | Constant-current current-limiting inverter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |