CN201332365Y - Inverter synchronous set type generating device - Google Patents
Inverter synchronous set type generating device Download PDFInfo
- Publication number
- CN201332365Y CN201332365Y CNU2009200953346U CN200920095334U CN201332365Y CN 201332365 Y CN201332365 Y CN 201332365Y CN U2009200953346 U CNU2009200953346 U CN U2009200953346U CN 200920095334 U CN200920095334 U CN 200920095334U CN 201332365 Y CN201332365 Y CN 201332365Y
- Authority
- CN
- China
- Prior art keywords
- phase
- inverter
- synchronous
- synchronous generator
- set type
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses an inverter synchronous set type generating device, comprising a three-phase inverter, a three-phase synchronous motor and a three-phase synchronous generator which are connected in order, wherein the input end of the three-phase inverter is connected with a DC power supply, the three-phase synchronous generator outputs the three-phase AC with the nominal frequency and the nominal voltage for the power load. The output shaft of the three-phase synchronous motor is in the mechanical connection with the input shaft of the three-phase synchronous generator, the three-phase inverter is selected from a three-phase frequency-converting inverter or a three-phase constant-frequency inverter, the three-phase synchronous motor is selected from a three-phase permanent magnetic synchronous motor or a three-phase excitation synchronous motor, the three-phase synchronous generator is selected from a three-phase brush self-adjusting excitation synchronous generator or a three-phase brushless self-adjusting excitation synchronous generator. The utility model has simple structure, convenient realization, stable output voltage, stable frequency and big motor start-up impact current resistance, the power supply characteristic is close to the power supply characteristic of the electrical network, the output end has no electromagnetic interference.
Description
Technical field
The utility model relates to the Blast Furnace Top Gas Recovery Turbine Unit (TRT) that the conversion of a kind of direct current exchanges, and relates to particularly that a kind of output frequency is stable, output voltage stabilization, the startup that can bear high power motor impact, the synchronous set type Blast Furnace Top Gas Recovery Turbine Unit (TRT) of inverter of no electromagnetic interference.
Background technology
Usually, the electricity consumption great majority of our work, studying and living etc. are to use AC power, as the electric consumption on lighting under the various environment, produce used various device, scientific research, used various instruments and the device of teaching, and employed washing machine, refrigerator, air-conditioning and microwave oven or the like in our life, all be to use AC power.But, be not have alternating current at some environment, have only DC power supply, or under situation about having a power failure, will directly have influence on normal work, living and studying.For this reason, need a kind of electric supply installation that DC power supply is converted to alternating current.
Power for DC power supply is converted to alternating current, the device of " direct current machine-synchronous generator generating " was once arranged.Concrete constitute as shown in Figure 1, include the DC motor 7 that links to each other with DC power supply and link to each other, export the three-phase synchronous generator 5 of required AC power with DC motor.This Blast Furnace Top Gas Recovery Turbine Unit (TRT), though DC power supply can be converted to AC power, yet, also having the frequency instability, DC motor needs the often deficiency of maintenance.
What generally use at present, is " three-phase inverter electric power system ".Concrete structure just adopts a three-phase inverter 6 as shown in Figure 2, and the input of described three-phase inverter 6 connects DC power supply, the three-phase alternating-current supply that output output is required.This " three-phase inverter electric power system " also exists output electromagnetic interference, can not bear the problem of the startup impact of high power motor.
Summary of the invention
Technical problem to be solved in the utility model is, provides that a kind of output frequency is stable, output voltage stabilization, can bear high power motor and start and impact the synchronous set type Blast Furnace Top Gas Recovery Turbine Unit (TRT) of the inverter of no electromagnetic interference.
The technical scheme that the utility model adopted is: the synchronous set type Blast Furnace Top Gas Recovery Turbine Unit (TRT) of a kind of inverter, include the three-phase inverter, three-phase synchronous motor and the three-phase synchronous generator that are connected successively, wherein, the input of described three-phase inverter connects DC power supply, and the three-phase alternating current of described three-phase synchronous generator output nominal frequency and nominal voltage uses for power load.
The output shaft of described three-phase synchronous motor and the power shaft of described three-phase synchronous generator are made mechanical attachment.
Described three-phase inverter is selected the three phase variable frequency inverter for use.
Described three-phase inverter is selected three-phase constant frequency inverter for use.
Described three-phase synchronous motor is selected three-phase permanent-magnetic synchronous motors for use.
Described three-phase synchronous motor is selected the three phase excitation synchronous motor for use.
Described three-phase synchronous generator selects for use three-phase to have brush to regulate excitation synchronous generator automatically.
Described three-phase synchronous generator selects for use three-phase brushless to regulate excitation synchronous generator automatically.
The synchronous set type Blast Furnace Top Gas Recovery Turbine Unit (TRT) of inverter of the present utility model, simple in structure, be convenient to realize, output voltage stabilization, frequency stabilization, anti-motor start-up impulse current is big, and more near the mains supply feature, output does not have electromagnetic interference to power supply characteristic.And can set the different output frequencies of three-phase inverter and select the nominal frequency of three-phase synchronous generator and the three-phase alternating-current supply that nominal voltage is exported required nominal frequency and nominal voltage according to selecting.
Description of drawings
Fig. 1 is the structural representation of the direct current machine-synchronous generator generating of prior art;
Fig. 2 is the structural representation of the three-phase inverter electric power system of prior art;
Fig. 3 is the structural representation of the synchronous set type Blast Furnace Top Gas Recovery Turbine Unit (TRT) of inverter of the present utility model.
Wherein:
1: three-phase inverter 2: three-phase synchronous motor
3: three-phase synchronous generator 4: power load equipment
A: the synchronous set type Blast Furnace Top Gas Recovery Turbine Unit (TRT) of inverter M: motor
Embodiment
Provide specific embodiment below in conjunction with accompanying drawing, further specify the synchronous set type Blast Furnace Top Gas Recovery Turbine Unit (TRT) of inverter of the present utility model and how to realize.
As shown in Figure 3, the synchronous set type Blast Furnace Top Gas Recovery Turbine Unit (TRT) of inverter of the present utility model, include the three-phase inverter 1, three-phase synchronous motor 2 and the three-phase synchronous generator 3 that are connected successively, wherein, the input of described three-phase inverter 1 connects DC power supply, and the power shaft of the output shaft of described three-phase synchronous motor 2 and described three-phase synchronous generator 3 is made mechanical attachment.The three-phase alternating current of described three-phase synchronous generator 3 output nominal frequencies and nominal voltage uses for power load.
At first start three-phase synchronous motor, after startup is finished, described three-phase inverter 1 output setpoint frequency (for example: alternating current 50HZ), described three-phase synchronous motor 2 is according to the frequency of three-phase inverter 1 output, do the synchronous speed operation, the three phase sine alternating current of described three-phase synchronous generator 3 output nominal frequencies and nominal voltage.
Three-phase inverter 1 described in the utility model can be selected the three phase variable frequency inverter for use, can also select three-phase constant frequency inverter for use.
Described three-phase synchronous motor 2 is selected three-phase permanent-magnetic synchronous motors (three-phase inverter 1 of this moment is selected the three phase variable frequency inverter for use) for use, or selects the three phase excitation synchronous motor for use; Described three-phase synchronous generator 3 selects for use three-phase to have brush to regulate excitation synchronous generator automatically, or selects for use three-phase brushless to regulate excitation synchronous generator automatically.
The synchronous set type Blast Furnace Top Gas Recovery Turbine Unit (TRT) of inverter of the present utility model, operation principle is when selecting the three phase variable frequency inverter for use: by DC power supply, at first three-phase synchronous motor is made variable frequency starting through the three phase variable frequency inverter, then, three phase variable frequency inverter output setpoint frequency (for example: alternating current 50HZ), drive three-phase synchronous motor and do the synchronous speed operation, drag three-phase synchronous generator via three-phase synchronous motor again, the three phase sine alternating current of generator output nominal frequency and nominal voltage is to power load equipment 4 and motor M.
Operation principle is when selecting three-phase constant frequency inverter for use: by DC power supply, three-phase constant frequency inverter output setpoint frequency (for example: alternating current 50HZ), at first three-phase synchronous motor is made asynchronous reduced-voltage starting or does asynchronous rotor crosstalk resistance to start, after startup is finished, three-phase synchronous motor is done the synchronous speed operation, drag three-phase synchronous generator via three-phase synchronous motor again, the three phase sine alternating current of generator output nominal frequency and nominal voltage is to power load equipment 4 and motor M.
Claims (8)
1. synchronous set type Blast Furnace Top Gas Recovery Turbine Unit (TRT) of inverter, it is characterized in that, include the three-phase inverter (1), three-phase synchronous motor (2) and the three-phase synchronous generator (3) that are connected successively, wherein, the input of described three-phase inverter (1) connects DC power supply, and the three-phase alternating current of described three-phase synchronous generator (3) output nominal frequency and nominal voltage uses for power load.
2. the synchronous set type Blast Furnace Top Gas Recovery Turbine Unit (TRT) of inverter according to claim 1 is characterized in that, the power shaft of the output shaft of described three-phase synchronous motor (2) and described three-phase synchronous generator (3) is made mechanical attachment.
3. the synchronous set type Blast Furnace Top Gas Recovery Turbine Unit (TRT) of inverter according to claim 1 is characterized in that described three-phase inverter (1) is selected the three phase variable frequency inverter for use.
4. the synchronous set type Blast Furnace Top Gas Recovery Turbine Unit (TRT) of inverter according to claim 1 is characterized in that described three-phase inverter (1) is selected three-phase constant frequency inverter for use.
5. the synchronous set type Blast Furnace Top Gas Recovery Turbine Unit (TRT) of inverter according to claim 1 is characterized in that described three-phase synchronous motor (2) is selected three-phase permanent-magnetic synchronous motors for use.
6. the synchronous set type Blast Furnace Top Gas Recovery Turbine Unit (TRT) of inverter according to claim 1 is characterized in that described three-phase synchronous motor (2) is selected the three phase excitation synchronous motor for use.
7. the synchronous set type Blast Furnace Top Gas Recovery Turbine Unit (TRT) of inverter according to claim 1 is characterized in that, described three-phase synchronous generator (3) selects for use three-phase to have brush to regulate excitation synchronous generator automatically.
8. the synchronous set type Blast Furnace Top Gas Recovery Turbine Unit (TRT) of inverter according to claim 1 is characterized in that described three-phase synchronous generator (3) selects for use three-phase brushless to regulate excitation synchronous generator automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200953346U CN201332365Y (en) | 2009-01-16 | 2009-01-16 | Inverter synchronous set type generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200953346U CN201332365Y (en) | 2009-01-16 | 2009-01-16 | Inverter synchronous set type generating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201332365Y true CN201332365Y (en) | 2009-10-21 |
Family
ID=41225750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200953346U Expired - Fee Related CN201332365Y (en) | 2009-01-16 | 2009-01-16 | Inverter synchronous set type generating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201332365Y (en) |
-
2009
- 2009-01-16 CN CNU2009200953346U patent/CN201332365Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2060786A3 (en) | Controlling the temperature of a wind turbine electric generator by varying the electrical power factor | |
| EP2866323A1 (en) | Auxiliary electric power system and method of regulating voltages of the same | |
| Kumar et al. | Simulation and experimental comparative analysis of the DC-DC converter topologies for wind driven SEIG fed DC nanogrid | |
| CN103630838B (en) | A kind of double-fed generator is to dragging temperature-raising experimental method | |
| CN103904639B (en) | For the Double-feed wind power unit converter control method of flexible direct current power transmission system | |
| CN113315445A (en) | SPIM motor drive circuit and method | |
| CN100463328C (en) | Rotating electromagnetic energy transformation device | |
| CN201903629U (en) | Alternating current transformation-type excitation synchronous wind power generation experimental facility | |
| Wang et al. | Analysis of grid-connected induction generators under three-phase balanced conditions | |
| Nayar | Remote area micro-grid system using diesel driven doubly fed induction generators, photovoltaics and wind generators | |
| CN201332365Y (en) | Inverter synchronous set type generating device | |
| Samoylenko et al. | Semiconductor power electronics for synchronous distributed generation | |
| CN215120636U (en) | SPIM motor drive circuit | |
| CN201523307U (en) | Inverter asynchronous motor-synchronous generator unit generating device | |
| Igbinovia et al. | Josef T systems | |
| CN102723739A (en) | Wind power generation system | |
| CN205265469U (en) | Intelligence motor control means | |
| Carrillo et al. | Effects of WECS settings and PMSG parameters in the performance of a small wind energy generator | |
| CN103633667A (en) | Water pumping power regulating system and method based on IGBT (Insulated Gate Bipolar Transistor) control | |
| Altas et al. | A novel active filter strategy for power mitigation and quality enhancements in a stand-alone WECS | |
| El Akhrif et al. | Experimental dSPACE analysis for permanent magnet synchronous generator used in voltage control | |
| Camocardi et al. | Wind generator with double stator induction machine. Control strategy for a water pumping application. | |
| RU97227U1 (en) | ELECTRIC POWER PLANT | |
| CN203984201U (en) | Brushless excitation generator | |
| CN205489973U (en) | Brushless double -fed aerogenerator of tandem type |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091021 Termination date: 20140116 |