CN114961885B - Power switching method of double-power driving unit - Google Patents
Power switching method of double-power driving unit Download PDFInfo
- Publication number
- CN114961885B CN114961885B CN202210493734.2A CN202210493734A CN114961885B CN 114961885 B CN114961885 B CN 114961885B CN 202210493734 A CN202210493734 A CN 202210493734A CN 114961885 B CN114961885 B CN 114961885B
- Authority
- CN
- China
- Prior art keywords
- steam turbine
- motor
- power
- power generation
- generation function
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/08—Adaptations for driving, or combinations with, pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
Abstract
The invention aims to provide a power switching method of a double-power driving unit, wherein a combined locking type synchronous automatic clutch is arranged between a motor and a load, and a disengaging locking variable speed clutch is arranged between a steam turbine and the load, so that the working conditions of arbitrary single-power on-load operation, double-power parallel operation, power switching operation, motor power generation operation, whole steam turbine or independent jigger and the like can be realized. The invention solves the problem that the original similar unit cannot operate if the motor fails, and improves the flexibility of unit power selection, the reliability of unit operation and the convenience of unit maintenance. Through setting up and combining the lockup clutch, the generating condition of unit has been satisfied to if the motor trouble can be under the circumstances of unit dynamic operation, make the motor withdraw from the operation, do not influence the unit operation. By arranging the disengaging locking clutch, the original functions of the working condition of the unit are realized, the independent turning requirement of the steam turbine is met, the energy consumption is saved, the equipment abrasion is reduced, and the equipment utilization rate is improved.
Description
Technical Field
The invention relates to a unit power control method, in particular to a double-power unit power control method.
Background
The steam-electricity double-power combined unit is widely applied to industries such as steel, electric power, chemical industry and the like. The main structural form of the current unit is as follows: the motor (which can be switched between an electric state and a power generation state), the speed change gear box, the load (induced draft fan, blower, water pump and the like), the speed change clutch and the steam turbine. The main working process of the unit is as follows:
(1) The motor is started, the clutch is in a disengaged state and the output end rotates with the motor, and the input end is stationary;
(2) After the steam turbine meets the working conditions, the steam turbine is started to drive the input end of the clutch to rotate;
(3) When the rotating speed of the input end and the rotating speed of the output end of the clutch are the same, the variable speed clutch is combined, the load power part is born by the steam turbine, and the power of the motor is reduced;
(4) When the power of the steam turbine is large enough, the output power of the steam turbine is larger than the load power, and the motor is converted into a generator state from a motor state;
(5) When the steam turbine cannot meet stable operation conditions or needs to be overhauled, the speed-reducing and speed-changing clutch of the steam turbine is disconnected, and the motor is turned into an electric state to continuously drive a load;
(6) When the turbine is stopped, the turbine is stopped at a speed reduction mode, the variable speed clutch is in a disengaging state, the motor is in a motor state, and then the motor is stopped at a speed reduction mode.
The working process can find that when the unit is started, the motor is started to drive the load, and then the steam turbine is started to work in parallel. When the machine set is stopped, the steam turbine must be stopped first, and then the motor can be stopped. If the motor fails, the unit will not work properly, and if the turbine fails, the motor will not be shut down. Meanwhile, the rotor characteristic of the steam turbine requires long-time turning of the steam turbine after the shutdown, the turning time required by the motor and the load after the shutdown is shorter, the whole shafting adopting the original structure needs to be turned together with the steam turbine, and the bearing is easy to wear under the condition of low-rotation speed turning, and energy is consumed. Therefore, the unit arrangement form has general reliability, convenience and maintainability of double-power operation.
Disclosure of Invention
The invention aims to provide a power switching method of a double-power driving unit, which can improve the convenience of power selection of a steam-electricity double-power combined unit and the maintainability of a power main machine
The purpose of the invention is realized in the following way:
the invention relates to a power switching method of a double-power driving unit, which is characterized by comprising the following steps of: the double-power driving unit comprises a steam turbine, a disengaging locking type variable speed clutch, a load, a locking type synchronous automatic clutch and a motor with a power generation function which are connected in sequence;
(1) When the motor with the power generation function works independently with a load, the motor with the power generation function is started to be combined with the locking clutch, the load is borne independently by the motor with the power generation function, the steam turbine is stationary, and the unlocking locking clutch is in an unlocking state;
(2) When the steam turbine works independently with load, the steam turbine starts a disengaging locking type variable speed clutch, the disengaging locking type clutch is in a combined state, the load is completely borne by the steam turbine, and a motor with a power generation function is stationary;
(3) Starting the steam turbine on the basis that the motor with the power generation function works independently under the load, and after the combined rotating speed is reached, disengaging the locking type synchronous automatic clutch from the steam turbine end to be combined, and keeping the combined state by the locking type synchronous automatic clutch;
(4) On the basis of the independent load work of the steam turbine, starting a motor with a power generation function, combining a locking synchronous automatic clutch after the combined rotating speed is reached, and keeping a disengaging locking variable speed clutch at the steam turbine end in a combined state, wherein the load power is jointly born by the motor with the power generation function and the steam turbine;
(5) When the load power is jointly born by the motor with the power generation function and the steam turbine, a combined locking signal is given to the combined locking type synchronous automatic clutch, a locking gear ring of a locking oil cylinder moves to finish the combined locking of the clutch, after the combined locking is finished, the opening degree of a valve of the steam turbine is increased, the output power of the steam turbine is improved, and when the output power is larger than the load power, the motor with the power generation function is changed from an electric state to a power generation state;
(6) When the single load operation of the motor with the power generation function is changed into the single load operation of the steam turbine, the steam turbine is started, the parallel operation of the steam turbine and the motor with the power generation function is finished, the power output of the steam turbine is increased, the power output of the motor with the power generation function approaches zero, the motor with the power generation function is stopped, and at the moment, the combined locking type synchronous automatic clutch at the motor end is disengaged, so that the power is switched from the motor with the power generation function to the steam turbine;
(7) When the operation of the steam turbine is changed from single load operation to single load operation of the motor with a power generation function, the motor with the power generation function is started, the parallel operation of the steam turbine and the motor with the power generation function is completed, then the power output of the steam turbine is reduced, the steam turbine is stopped when the power output of the steam turbine approaches zero, and at the moment, the disengagement locking type variable speed clutch is disengaged, so that the switching from the steam turbine to the motor with the power generation function is completed;
(8) When the motor with the power generation function works singly or the steam turbine works singly and is ready to stop for driving, a combined locking instruction is given to the combined locking synchronous automatic clutch before the stop instruction starts, and then the combined locking is completed and the unit is stopped in a speed reducing way; when the steam turbine works independently with load and is ready to stop for driving, the motor with the power generation function is driven after the steam turbine stops, so that the combined locking type synchronous automatic clutch is combined, the combined locking state is realized, and then the stop state of the steam turbine is maintained; when the steam turbine is in complete standstill, the turning gear is manually combined with the steam turbine turning gear to put the turning gear into operation.
The invention may further include:
1. when the motor with the power generation function and the steam turbine run in parallel, if the motor with the power generation function fails and needs emergency shutdown, the power of the steam turbine is increased to meet the load demand, then the motor with the power generation function is stopped, and the locking type synchronous automatic clutch is combined to run in a disengaging mode.
2. When the motor with the power generation function and the steam turbine run in parallel and are switched into the steam turbine to work independently under load, the opening degree of the valve of the steam turbine is increased, when the power output of the motor with the power generation function approaches zero, the motor power supply with the power generation function is closed, the locking synchronous automatic clutch is combined to be disengaged, and the disengaged locking variable speed clutch keeps unchanged.
3. When the motor with the power generation function and the steam turbine run in parallel and are switched to the motor with the power generation function to work independently under load, the opening of the valve of the steam turbine is gradually reduced until the steam turbine is stopped in a speed reducing way, at the moment, the disengaging locking type variable speed clutch is disengaged, and the combined locking type synchronous automatic clutch keeps unchanged in state.
The invention has the advantages that: the combined use of the locking clutch and the unlocking locking clutch enables the unit operation of the steam-electricity double-power combined unit to be more flexible; and if any single power host machine fault unit occurs, the unit can still normally operate, so that the reliability is improved and the unit maintenance is convenient. Meanwhile, the independent turning operation working condition of the steam turbine is increased, the equipment loss is reduced, and the energy is saved.
Drawings
FIG. 1 is a schematic layout diagram of the whole unit and a power flow diagram of a motor with a load alone;
FIG. 2 is a power flow diagram of a turbine with load alone;
FIG. 3 is a power flow diagram of the parallel operation of the motor and the steam turbine;
FIG. 4 is a power flow diagram for a power generation condition;
FIG. 5 is a power flow diagram of a switch from motor operating mode to turbine operating mode;
FIG. 6 is a power flow diagram of a turbine operating mode to motor operating mode switching;
FIG. 7 is a power flow diagram of the unit whole jigger;
FIG. 8 is a power flow diagram of a turbine individual jigger.
Detailed Description
The invention is described in more detail below, by way of example, with reference to the accompanying drawings:
1-8, the technical scheme adopted by the invention for solving the technical problems is that on the basis of the original unit layout form, a combined locking type clutch is added between a motor (which can be switched between an electric state and a power generation state) and a load (an induced draft fan, a blower, a water pump and the like), and a released locking type variable speed clutch is added between a steam turbine and the load. By combining a lockup clutch group, both forward transmission of power flow from the motor to the load (electric state) and reverse transmission of power flow from the turbine to the motor (electric state) can be achieved. The problem of individual turning of the steam turbine under static state of the unit can be solved by disengaging the locking speed-changing clutch. Moreover, the unit can automatically realize the input or the withdrawal of the motor or the steam turbine under the dynamic state or the static state through the disengaging locking variable-speed clutch at the steam turbine end and the engaging locking clutch at the motor end.
The arrangement form of the unit is as follows:
the motor-combined locking clutch-load-separated locking speed-changing clutch-steam turbine. Wherein the jigger device is integrated on the steam turbine.
The main working conditions which can be realized by the unit are shown in the following table 1.
TABLE 1 Main working conditions of the units
As shown in Table 1, by locking the synchronous clutch and the bidirectional clutch, the unit provided by the invention can realize 4 normal operation conditions of single-load operation of the motor, single-load operation of the turbine, parallel operation of the motor and the turbine, and power generation operation of the turbine, and realize the power switching from the motor to the turbine or from the turbine to 2 power switching conditions of the motor, and can realize the 2 turning conditions of the whole turning of the unit and the single-turning of the turbine.
The locking clutch device consists of a synchronous automatic clutch and a locking device. Under normal conditions, the synchronous automatic clutch can only forward transmit power, and the locking device has the main function of ensuring that the synchronous automatic clutch cannot be disengaged and allowing reverse power transmission when power is reversely transmitted (the motor generating working condition or the whole jigger of the unit). Meanwhile, the synchronous automatic clutch can automatically control the input and the withdrawal of the motor in the unit according to the requirement.
The disengagement locking speed-changing clutch is composed of a synchronous automatic clutch with disengagement locking device and a pair of speed-changing gears. The synchronous automatic clutch is used for automatically controlling the input and the disconnection of the power of the turbine according to the rotating speed of the turbine, and the disengaging locking device is used for ensuring that the part of the shaft system loaded to the motor can be kept in a static state under the working condition of independent turning of the turbine, and the speed change gear can be matched with the rotating speed of the shaft system between the turbine and the load.
At condition 1 in table 1, motor 1 is activated to engage lockup clutch engagement 2, load 3 is borne solely by motor 1, turbine 5 is stationary, and lockup clutch disengagement 4 is in a disengaged state.
At condition 2 in table 1, steam turbine 5 initiates the disengagement lock unlocking, and disengagement lock-up clutch 4 is in the engaged state. The load 3 is fully assumed by the turbine 5 and the motor 1 is stationary.
On the basis of the working condition 1 or the working condition 2, the parallel operation of the double-power unit of the working condition 3 can be realized.
When the machine set runs under the working condition 1, the steam turbine 5 is started at the moment, and after the combined rotating speed is reached, the steam turbine end is disconnected from the locking type synchronous automatic clutch 4 to be combined, and the locking type synchronous automatic clutch 2 at the motor end is kept in a combined state. In this case, the power of the load 3 is shared by the motor 1 and the steam turbine 5.
When the machine set runs under the working condition 2, the motor 1 is started at the moment, and after the combined rotating speed is reached, the combined locking type synchronous automatic clutch 2 at the motor end is combined, and the off-locking clutch 4 at the steam turbine end is kept in a combined state. In this case, the power of the load 3 is shared by the motor and the steam turbine.
Meanwhile, the power fluctuation of the steam turbine caused by the change of factors such as the steam quantity can be automatically compensated by the power of the motor, the total power output by the unit is kept stable, and the stable operation of the unit is facilitated under the working condition. Under the working condition 3, if the motor is required to be taken out of operation, namely, the motor is required to be converted into the working condition 2, the opening degree of the valve of the steam turbine 5 is required to be increased, when the power output of the motor 1 is approximately zero, the power supply of the motor 1 is closed, the motor end is combined with the locking type clutch 2 to be disengaged, and the rest clutch is kept unchanged.
Under the working condition 3, if the steam turbine 5 is required to be taken out of operation at the moment, namely, the steam turbine 5 is required to be gradually reduced in the opening degree of a regulating valve until the steam turbine 5 is stopped in a speed reducing way when the steam turbine is switched into the working condition 1, the steam turbine end-disengaging locking clutch 4 is disengaged, and the motor end-engaging locking clutch 2 is kept unchanged.
Under the working condition 3, if the steam quantity is rich at the moment, the condition that the output power of the steam turbine is larger than the load power is satisfied, the working condition 4 can be realized on the basis of stable operation of the working condition 3, and the motor generates power to operate. When the unit works under the working condition 3 and is ready to enter the power generation working condition 4, a combined locking signal is firstly given to the locking clutch 2 at the motor end, the locking gear ring of the locking oil cylinder moves, and the combined locking of the clutch is completed. After the combination locking is completed, the opening degree of a valve of the steam turbine 5 is increased, the output power of the steam turbine is increased, and when the output power is larger than the load power, the motor 1 is changed from an electric state to a power generation state.
If the power generation state of the motor is required to be adjusted from the working condition 4 to other working conditions, the output power of the steam turbine 5 is required to be firstly adjusted down, so that the motor 1 is changed from the power generation state to the electric state, and then a combined locking unlocking signal is given to the combined locking clutch 2 at the motor end, so that the combined locking and unlocking of the combined locking clutch 2 is completed, and the combined locking clutch 2 can be automatically combined and released according to the rotating speeds at the two ends.
The condition 5 is a switching condition from the condition 1 to the condition 2. When the system is driven by the motor 1 alone (working condition 1), power switching is required to be driven by the steam turbine 5 alone (working condition 2). At this time, the steam turbine 5 is started first, and the parallel operation of the steam turbine 5 and the motor 1 is completed (condition 3). Then, the power output of the steam turbine 5 is gradually increased, the power output of the motor 1 is approximately zero, the motor 1 is stopped, and at the moment, the combined locking clutch 2 at the motor end is disengaged, and the switching of the power from the motor 1 to the steam turbine 5 is completed (the switching from the working condition 1 to the working condition 2).
The condition 6 is a switching condition from the condition 2 to the condition 1. When the system is driven by the turbine 5 alone (condition 2), power switching is required to be driven by the motor 1 alone (condition 1). At this time, the motor 1 is started first, and the parallel operation of the steam turbine 5 and the motor 1 is completed (condition 3). Then, the power output of the turbine 5 is gradually reduced, the turbine 5 is stopped when the power output of the turbine 5 is approximately zero, and the disengaging and locking clutch 4 at the end of the turbine 5 is disengaged at the moment, so that the switching from the turbine 5 to the motor 1 (the switching from the working condition 2 to the working condition 1) is completed.
When the unit is ready to stop under the working condition 1 or the working condition 3 and performs turning under the working condition 7, a combined locking command is required to be given to the combined locking clutch 2 at the motor end before the stop command starts, and then the combined locking of the clutch is completed and then the unit is stopped in a speed reducing way. When the unit runs under the working condition 4, the motor end is kept to be combined with the locking type clutch 2 to be locked, the working condition 4 is converted into the working condition 3, and the machine is stopped according to a stopping method of the working condition 3. When the unit operates under the working condition 2, the motor 1 is started after the unit is stopped, so that the locking clutch 2 at the motor end is combined, then a locking signal is combined to enable the locking clutch to be in a combined locking state, and then the unit is kept in a stopping state. When the unit is completely stationary under the above conditions, the steam turbine jigger is manually combined to put the jigger into operation, and the whole unit is jigged.
When the turning of the working condition 8 is needed, the whole unit can be stopped under any working condition, the unlocking and locking clutch 4 at the steam turbine end is unlocked and locked, the unlocking and locking clutch 4 at the steam turbine end cannot be combined, then turning is manually combined, and the turning is put into operation to independently turn the steam turbine 5 for a long time. After the turning of the steam turbine is completed, an unlocking signal is given to the disengaging and locking type clutch 4 at the steam turbine end, so that the clutch is ready for the next unit operation.
In general, the common working conditions of the unit are working condition 3 and working condition 4. When the unit runs under the working condition 3 or the working condition 4, if the steam turbine 5 fails, the unit can be stopped directly, the disengaging and locking type clutch 4 at the steam turbine end is disengaged for running, the motor 1 is used for carrying the load 3 for running continuously, and the unit can not be stopped due to the failure of the steam turbine 5.
When the machine set runs under the working condition 3, if the motor 1 breaks down and needs emergency stop, the power of the steam turbine 5 needs to be increased firstly to meet the requirement of the load 3, then the motor 1 stops, and the motor end is combined with the locking clutch 2 to be disconnected. At this time, the motor 1 can be overhauled, and the running of the unit cannot be influenced.
When the unit runs under the working condition 4, if the motor 1 breaks down and needs emergency stop, the power of the steam turbine 5 needs to be reduced firstly, the requirement of the load 3 is met, and the power generation state of the motor 1 is relieved. Then, the motor end combined locking clutch 2 gives a combined locking unlocking signal, so that the clutch can be freely combined and separated according to the rotating speeds of the two ends. Finally, the motor 1 is stopped, and the motor end is combined with the locking clutch 2 to be disconnected. At this time, the motor can be overhauled, and the running of the unit cannot be influenced.
Claims (4)
1. A power switching method of a double-power driving unit is characterized by comprising the following steps: the double-power driving unit comprises a steam turbine, a disengaging locking type variable speed clutch, a load, a locking type synchronous automatic clutch and a motor with a power generation function which are connected in sequence;
(1) When the motor with the power generation function works independently with a load, the motor with the power generation function is started to be combined with the locking clutch, the load is borne independently by the motor with the power generation function, the steam turbine is stationary, and the unlocking locking clutch is in an unlocking state;
(2) When the steam turbine works independently with load, the steam turbine starts a disengaging locking type variable speed clutch, the disengaging locking type clutch is in a combined state, the load is completely borne by the steam turbine, and a motor with a power generation function is stationary;
(3) Starting the steam turbine on the basis that the motor with the power generation function works independently under the load, and after the combined rotating speed is reached, disengaging the locking type synchronous automatic clutch from the steam turbine end to be combined, and keeping the combined state by the locking type synchronous automatic clutch;
(4) On the basis of the independent load work of the steam turbine, starting a motor with a power generation function, combining a locking synchronous automatic clutch after the combined rotating speed is reached, and keeping a disengaging locking variable speed clutch at the steam turbine end in a combined state, wherein the load power is jointly born by the motor with the power generation function and the steam turbine;
(5) When the load power is jointly born by the motor with the power generation function and the steam turbine, a combined locking signal is given to the combined locking type synchronous automatic clutch, a locking gear ring of a locking oil cylinder moves to finish the combined locking of the clutch, after the combined locking is finished, the opening degree of a valve of the steam turbine is increased, the output power of the steam turbine is improved, and when the output power is larger than the load power, the motor with the power generation function is changed from an electric state to a power generation state;
(6) When the single load operation of the motor with the power generation function is changed into the single load operation of the steam turbine, the steam turbine is started, the parallel operation of the steam turbine and the motor with the power generation function is finished, the power output of the steam turbine is increased, the power output of the motor with the power generation function approaches zero, the motor with the power generation function is stopped, and at the moment, the combined locking type synchronous automatic clutch at the motor end is disengaged, so that the power is switched from the motor with the power generation function to the steam turbine;
(7) When the operation of the steam turbine is changed from single load operation to single load operation of the motor with a power generation function, the motor with the power generation function is started, the parallel operation of the steam turbine and the motor with the power generation function is completed, then the power output of the steam turbine is reduced, the steam turbine is stopped when the power output of the steam turbine approaches zero, and at the moment, the disengagement locking type variable speed clutch is disengaged, so that the switching from the steam turbine to the motor with the power generation function is completed;
(8) When the motor with the power generation function works singly or the steam turbine works singly and is ready to stop for driving, a combined locking instruction is given to the combined locking synchronous automatic clutch before the stop instruction starts, and then the combined locking is completed and the unit is stopped in a speed reducing way; when the steam turbine works independently with load and is ready to stop for driving, the motor with the power generation function is driven after the steam turbine stops, so that the combined locking type synchronous automatic clutch is combined, the combined locking state is realized, and then the stop state of the steam turbine is maintained; when the steam turbine is in complete standstill, the turning gear is manually combined with the steam turbine turning gear to put the turning gear into operation.
2. The power switching method of the double-power-driven unit according to claim 1, wherein the method comprises the following steps: when the motor with the power generation function and the steam turbine run in parallel, if the motor with the power generation function fails and needs emergency shutdown, the power of the steam turbine is increased to meet the load demand, then the motor with the power generation function is stopped, and the locking type synchronous automatic clutch is combined to run in a disengaging mode.
3. The power switching method of the double-power-driven unit according to claim 1, wherein the method comprises the following steps: when the motor with the power generation function and the steam turbine run in parallel and are switched into the steam turbine to work independently under load, the opening degree of the valve of the steam turbine is increased, when the power output of the motor with the power generation function approaches zero, the motor power supply with the power generation function is closed, the locking synchronous automatic clutch is combined to be disengaged, and the disengaged locking variable speed clutch keeps unchanged.
4. The power switching method of the double-power-driven unit according to claim 1, wherein the method comprises the following steps: when the motor with the power generation function and the steam turbine run in parallel and are switched to the motor with the power generation function to work independently under load, the opening of the valve of the steam turbine is gradually reduced until the steam turbine is stopped in a speed reducing way, at the moment, the disengaging locking type variable speed clutch is disengaged, and the combined locking type synchronous automatic clutch keeps unchanged in state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210493734.2A CN114961885B (en) | 2022-05-07 | 2022-05-07 | Power switching method of double-power driving unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210493734.2A CN114961885B (en) | 2022-05-07 | 2022-05-07 | Power switching method of double-power driving unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114961885A CN114961885A (en) | 2022-08-30 |
| CN114961885B true CN114961885B (en) | 2023-08-08 |
Family
ID=82982019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210493734.2A Active CN114961885B (en) | 2022-05-07 | 2022-05-07 | Power switching method of double-power driving unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114961885B (en) |
Citations (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4137535A1 (en) * | 1990-11-14 | 1992-05-21 | Ficht Gmbh | Combined compressor and electrical generator - is driven by vehicle engine or by own IC engine dependent on energy requirement |
| JPH0924752A (en) * | 1995-07-11 | 1997-01-28 | Aisin Aw Co Ltd | Control device of driving device for vehicle |
| JPH11170877A (en) * | 1997-12-09 | 1999-06-29 | Kyowa Gokin Kk | Transmission for automobile |
| JPH11299007A (en) * | 1998-04-16 | 1999-10-29 | Toyota Motor Corp | Power output device, its control method and hybrid vehicle |
| US6023134A (en) * | 1996-10-25 | 2000-02-08 | Daimlerchrysler Aerospace Airbus Gmbh | Power conversion system for bi-directional conversion between hydraulic power and electrical power |
| DE102007042949A1 (en) * | 2007-09-10 | 2009-04-02 | Georg Hienz | Automatic electro-mechanical gear for hybrid vehicles or vehicles with internal combustion engine drive, has output shaft of internal combustion engine, which is connected with gear ring of planetary gear and with input shaft of double gear |
| JP2009184433A (en) * | 2008-02-04 | 2009-08-20 | Toyota Motor Corp | Vehicular power train |
| JP2010133284A (en) * | 2008-12-02 | 2010-06-17 | Mitsubishi Heavy Ind Ltd | Power generation system |
| JP2011011736A (en) * | 2009-06-03 | 2011-01-20 | Toyota Central R&D Labs Inc | Power transmission device |
| CN201863680U (en) * | 2010-12-02 | 2011-06-15 | 合肥天鹅制冷科技有限公司 | Vehicle-mounted air conditioner with dual-power switching function |
| CN202541250U (en) * | 2012-03-23 | 2012-11-21 | 北京安沃科瑞铁路机电设备有限公司 | Vehicle-mounted air conditioner device with dual-power switching function |
| CN104442345A (en) * | 2014-11-11 | 2015-03-25 | 奇瑞汽车股份有限公司 | Series-parallel hybrid power automobile powertrain system and power distribution control method thereof |
| CN107013260A (en) * | 2017-04-10 | 2017-08-04 | 西安西热节能技术有限公司 | System and its operation method based on the double drives of air-introduced machine vapour electricity and variable-frequency power generation |
| CN108462316A (en) * | 2018-02-26 | 2018-08-28 | 中国船舶重工集团公司第七0三研究所 | A kind of efficient gas electricity mixed power pump units with speed regulation |
| CN108868908A (en) * | 2018-06-26 | 2018-11-23 | 中国电力工程顾问集团华东电力设计院有限公司 | Control method, device and the backheat small turbine system of backheat small turbine |
| CN109519232A (en) * | 2018-09-30 | 2019-03-26 | 西安陕鼓动力股份有限公司 | SHRT unit frequency-conversion device auto-adjustment control method synchronous with turbine speed |
| CN110439632A (en) * | 2019-09-05 | 2019-11-12 | 哈尔滨广瀚动力传动有限公司 | One kind drawing increasing unification retrofitted unit full-automatic on-off device and application method |
| CN111412023A (en) * | 2020-04-03 | 2020-07-14 | 荣信汇科电气技术有限责任公司 | Coordination control method for realizing stable operation of steam-electricity dual-drive system |
| CN212803677U (en) * | 2020-08-21 | 2021-03-26 | 重庆永进重型机械成套设备有限责任公司 | Fan unit |
| CN112554814A (en) * | 2020-12-18 | 2021-03-26 | 华信唐山石油装备有限公司 | Continuous sucker rod operation vehicle and method |
| CN112879109A (en) * | 2021-01-14 | 2021-06-01 | 西安陕鼓动力股份有限公司 | Energy recovery method of parallel-connection steam-electricity double-drive coaxial unit based on load distribution |
| CN113389604A (en) * | 2021-07-20 | 2021-09-14 | 赵振 | Converter saturated steam turbine and motor combined dragging power generation automatic load adjusting, operating and protecting method |
| WO2021183089A1 (en) * | 2020-03-13 | 2021-09-16 | Магомет Фуадович МАЛХОЗОВ | Multifunctional power plant |
| CN114183212A (en) * | 2021-12-09 | 2022-03-15 | 中国船舶重工集团公司第七0三研究所 | Double-steering turning gear of steam turbine of single-shaft combined cycle unit |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10219080A1 (en) * | 2002-04-29 | 2003-11-20 | Voith Turbo Kg | Drive system, in particular for motor vehicles |
| ITFI20120292A1 (en) * | 2012-12-24 | 2014-06-25 | Nuovo Pignone Srl | "GAS TURBINES IN MECHANICAL DRIVE APPLICATIONS AND OPERATING METHODS" |
| CN110329061A (en) * | 2019-08-01 | 2019-10-15 | 北京理工大学 | A kind of electromechanical combined transmission system mode switching method |
-
2022
- 2022-05-07 CN CN202210493734.2A patent/CN114961885B/en active Active
Patent Citations (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4137535A1 (en) * | 1990-11-14 | 1992-05-21 | Ficht Gmbh | Combined compressor and electrical generator - is driven by vehicle engine or by own IC engine dependent on energy requirement |
| JPH0924752A (en) * | 1995-07-11 | 1997-01-28 | Aisin Aw Co Ltd | Control device of driving device for vehicle |
| US6023134A (en) * | 1996-10-25 | 2000-02-08 | Daimlerchrysler Aerospace Airbus Gmbh | Power conversion system for bi-directional conversion between hydraulic power and electrical power |
| JPH11170877A (en) * | 1997-12-09 | 1999-06-29 | Kyowa Gokin Kk | Transmission for automobile |
| JPH11299007A (en) * | 1998-04-16 | 1999-10-29 | Toyota Motor Corp | Power output device, its control method and hybrid vehicle |
| DE102007042949A1 (en) * | 2007-09-10 | 2009-04-02 | Georg Hienz | Automatic electro-mechanical gear for hybrid vehicles or vehicles with internal combustion engine drive, has output shaft of internal combustion engine, which is connected with gear ring of planetary gear and with input shaft of double gear |
| JP2009184433A (en) * | 2008-02-04 | 2009-08-20 | Toyota Motor Corp | Vehicular power train |
| JP2010133284A (en) * | 2008-12-02 | 2010-06-17 | Mitsubishi Heavy Ind Ltd | Power generation system |
| JP2011011736A (en) * | 2009-06-03 | 2011-01-20 | Toyota Central R&D Labs Inc | Power transmission device |
| CN201863680U (en) * | 2010-12-02 | 2011-06-15 | 合肥天鹅制冷科技有限公司 | Vehicle-mounted air conditioner with dual-power switching function |
| CN202541250U (en) * | 2012-03-23 | 2012-11-21 | 北京安沃科瑞铁路机电设备有限公司 | Vehicle-mounted air conditioner device with dual-power switching function |
| CN104442345A (en) * | 2014-11-11 | 2015-03-25 | 奇瑞汽车股份有限公司 | Series-parallel hybrid power automobile powertrain system and power distribution control method thereof |
| CN107013260A (en) * | 2017-04-10 | 2017-08-04 | 西安西热节能技术有限公司 | System and its operation method based on the double drives of air-introduced machine vapour electricity and variable-frequency power generation |
| CN108462316A (en) * | 2018-02-26 | 2018-08-28 | 中国船舶重工集团公司第七0三研究所 | A kind of efficient gas electricity mixed power pump units with speed regulation |
| CN108868908A (en) * | 2018-06-26 | 2018-11-23 | 中国电力工程顾问集团华东电力设计院有限公司 | Control method, device and the backheat small turbine system of backheat small turbine |
| CN109519232A (en) * | 2018-09-30 | 2019-03-26 | 西安陕鼓动力股份有限公司 | SHRT unit frequency-conversion device auto-adjustment control method synchronous with turbine speed |
| CN110439632A (en) * | 2019-09-05 | 2019-11-12 | 哈尔滨广瀚动力传动有限公司 | One kind drawing increasing unification retrofitted unit full-automatic on-off device and application method |
| WO2021183089A1 (en) * | 2020-03-13 | 2021-09-16 | Магомет Фуадович МАЛХОЗОВ | Multifunctional power plant |
| CN111412023A (en) * | 2020-04-03 | 2020-07-14 | 荣信汇科电气技术有限责任公司 | Coordination control method for realizing stable operation of steam-electricity dual-drive system |
| CN212803677U (en) * | 2020-08-21 | 2021-03-26 | 重庆永进重型机械成套设备有限责任公司 | Fan unit |
| CN112554814A (en) * | 2020-12-18 | 2021-03-26 | 华信唐山石油装备有限公司 | Continuous sucker rod operation vehicle and method |
| CN112879109A (en) * | 2021-01-14 | 2021-06-01 | 西安陕鼓动力股份有限公司 | Energy recovery method of parallel-connection steam-electricity double-drive coaxial unit based on load distribution |
| CN113389604A (en) * | 2021-07-20 | 2021-09-14 | 赵振 | Converter saturated steam turbine and motor combined dragging power generation automatic load adjusting, operating and protecting method |
| CN114183212A (en) * | 2021-12-09 | 2022-03-15 | 中国船舶重工集团公司第七0三研究所 | Double-steering turning gear of steam turbine of single-shaft combined cycle unit |
Non-Patent Citations (1)
| Title |
|---|
| 发动机与变速箱耦合系统非线性动力学及NVH性能研究;王连生;浙江大学;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114961885A (en) | 2022-08-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11312225B2 (en) | Power train for pumps, energy generation systems or similar and method for starting up a power train of this type | |
| US6133716A (en) | High-efficiency high-power uninterrupted power system | |
| US3439563A (en) | Transmission system for interconnecting two rotary machines | |
| CN203770264U (en) | Hydraulic circuit driving cement pump | |
| US3696612A (en) | Fuel pump system for gas turbines | |
| CN107387598B (en) | Efficient oil source system of automatic transmission | |
| SE515747C2 (en) | Hydraulic control system for a vehicle transmission | |
| US5562190A (en) | Hydraulic clutch control system with fluid coupling pre-heat circuit for rapid response at low ambient temperatures | |
| CN209250419U (en) | A kind of mechatronics integration speed-regulating system | |
| CN114961885B (en) | Power switching method of double-power driving unit | |
| CN111412023A (en) | Coordination control method for realizing stable operation of steam-electricity dual-drive system | |
| US8141355B2 (en) | Hydraulic system for an automatic transmission | |
| US3722213A (en) | Gear train for gas turbine engines | |
| CN110332088B (en) | Novel feed pump system and operation method thereof | |
| CN201924030U (en) | Improved blast furnace three-machine combination | |
| CN215487503U (en) | Electromechanical integrated planetary speed regulating device with full-range speed regulation | |
| CN201924029U (en) | Blast furnace three-machine combination | |
| CN213205779U (en) | Byproduct steam utilization device | |
| CN108386238B (en) | Motor-small steam turbine variable-rotation-speed double-driving system | |
| JP2011037300A (en) | Integrated control device and ship equipped with the same | |
| GB972373A (en) | Improvements in and relating to a power transmission mechanism | |
| US3008296A (en) | Turbine power plant | |
| RU2053162C1 (en) | Shipboard propeller and reduction gear set lubrication and control hydraulic system | |
| CN113565939A (en) | Electromechanical integrated planetary speed regulating device with full-range speed regulation | |
| CN213511252U (en) | Automatic regulating device for closed water pump valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |