CN1665121A - Combined DC chopped wave speed regulation submarine propulsion plant having super capacitor - Google Patents
Combined DC chopped wave speed regulation submarine propulsion plant having super capacitor Download PDFInfo
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- CN1665121A CN1665121A CN 200410060383 CN200410060383A CN1665121A CN 1665121 A CN1665121 A CN 1665121A CN 200410060383 CN200410060383 CN 200410060383 CN 200410060383 A CN200410060383 A CN 200410060383A CN 1665121 A CN1665121 A CN 1665121A
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Abstract
The invention discloses a combined DC-chop speed regulating device for electrically propelling submarine, comprising: a startup buffering circuit to limit discharging current of storage battery group as starting up; a boosting chop circuit to increase output voltage of four-quadrant DC chopper and rotating speed of propelling motor; a super capacitor group to provide the electric energy needed by limit navigational speed of tin fish and filter the voltage of bus line; two four-quadrant DC choppers to drive the DC propelling motor; a main circuit control unit to control the combined chopper group. The invention can effectively ensure discharging ability of the storage battery group and thus, on the heavy-current discharging condition, the storage battery group can effectively increase the limit navigational speed of the submarine.
Description
Technical field
The direct current chopping regulating speed circuit that relates to a kind of submarine electric propulsion system, it adopts knockdown DC chopped-wave device, has the electrochemical capacitance group as energy storage and middle filter element, and this device has fuel cell voltage and Current Regulation converting means.
Technical background
At present, traditional diesel electric submarines is most to adopt as shown in Figure 3 direct-flow storage battery group and armature connection in series-parallel to switch the electric propulsion system of speed governing, and its alignment circuit comprises: two group storage battery groups, double armature, and corresponding switch switching circuit; When electric propulsion system was in the combining structure of storage battery parallel connection, the series connection of motor double armature, submarine was in the minimum speed of a ship or plane; When electric propulsion system was in the combining structure of batteries series connection, the series connection of motor double armature, submarine was in the intermediate speed of a ship or plane; Storage battery is connected, the combining structure of armature parallel connection when electric propulsion system is in, and submarine is in highest speed; Can make submarine be in the cruising astern state by the switch switching.Its shortcoming is, when submarine runs into certain state of emergency and need navigate by water with the limit speed of a ship or plane, for example when being subjected to submarine or depth charge attack, need escape submarine or depth charge attack with the limit speed of a ship or plane, prior art relies on the switch of main circuit to switch the series and parallel mode that changes storage battery and armature and regulates the submarine speed of a ship or plane, this process can be brought of short duration and the huge impact electric current to system, can understand the rush of current that diverter switch causes fully from Fig. 9.4 as can be seen in conjunction with the accompanying drawings, and the operating state curve of batteries under different discharge rate situations has huge difference, and increase with discharge rate and reduce rapidly its discharge time.Therefore, the impulse current that switch switch to produce has limited the maneuverability under water of submarine and voyage under water, and secondly, dc switch switches arc extinguishing process difficulty, and the electromagnetic noise of generation is big, and submarine is given away one's position easily.Rely on dc switch to switch mode of speed regulation and can produce two problems, violent decline of the promptly powerful lead acid accumulator discharge capability that impulse current caused and electromagnetic noise are to the interference of system.For the submarine electric propulsion system that relies on switch to switch, its speed regulation is the three-step timing of fixing, and can not realize the rate smoothing adjusting, and underwater mobility is poor.Simultaneously, for the electric propulsion system that switch switches speed governing, its other shortcoming is to adopt fuel cell system directly to drive the direct current machine of submarine.Shortcoming at direct current system, at present, the submarine governing system trends towards adopting alternating-current actuating system, adopted PERMASYN rare earth permanent-magnet synchronization motor and alternating frequency conversion technique electric propulsion system as the famous U212 of Germany series submarine as submarine, its propulsive performance excellence can adopt the AIP fuel cell system.But this technical costs is high, generally only is suitable for the brand-new new-type submarine of making.For a large amount of submarine direct current power propulsion systems that still adopts dc switch switching step speed regulation, can't directly adopt this technology.Therefore, adopt a kind of new technology that can directly transform existing step speed regulation submarine electric propulsion system, this technology can keep original direct current machine at least, make its technical scheme with continuous speed adjustment ability and excellent dynamic performance that good technological value be arranged, the direct current chopping regulating speed system also uses in the electric propulsion system of submarine at present to some extent.But still there are many shortcomings in traditional direct current chopping regulating speed system, and for example it can't further improve the limit velocity under water of submarine under the certain situation of battery tension; Can't absorb the decelerating and braking energy of submarine etc. effectively, limit its application in submarine.Therefore, a kind of chopping regulating speed of new DC more of research system is very necessary.For example at the United States Patent (USP) PatentNo:US 6 of on November 18th, 2003 bulletin, 650,091, High current pulse generator has proposed a kind of device, by electrochemical capacitance is carried out series-parallel technical scheme, power to electrochemical capacitance by storage battery, under the spike situation, provide pulse energy by electrochemical capacitance, under light load condition, by storage battery power supply.But, this patent does not relate to a kind of global voltage with the electrochemical capacitance group of employing and raises, simultaneously, it is constant that the discharging current of electrochemical capacitance group keeps, the energy storage that makes full use of electric capacity improves the device of the limit power of system, meanwhile, can fully control the discharging current of storage battery itself again, to ensure the discharge capability of storage battery.
In addition at the United States Patent (USP) Patent No:US 6 of on December 28th, 2004 bulletin, 836,097 b2, Power Supply for Pulsed Load has proposed a kind of device, storage battery and electrochemical capacitance are carried out parallel running, under the spike situation, provide pulse energy, under light load condition, by storage battery power supply by electrochemical capacitance.But this patent does not relate to the voltage rising of a kind of device of employing with electrochemical capacitance, and the energy storage that makes full use of electric capacity improves the limit power of system, simultaneously, can fully control the discharging current of storage battery again, to ensure the discharge capability of storage battery.
Summary of the invention
At the problem that above-mentioned prior art exists, the submarine combination direct current chopping regulating speed electric propulsion system scheme technical problem to be solved that the present invention proposes is: provide a kind of can eliminate the powerful lead acid accumulator discharge capability that impulse current caused violent descend and electromagnetic noise to the electric propulsion apparatus of the interference problem of system; Can under the certain situation of battery tension, further improve the limit velocity under water of submarine, ensure the not weakened technical scheme of discharge capability of storage battery simultaneously; Can absorb the decelerating and braking energy of submarine effectively, improve submarine maneuverability; This device needs to solve fuel cell system owing to spread of voltage, and the operating characteristic of battery is softer, can't directly drive the problem of the direct current machine of submarine; This device can keep original direct current machine, reduces electric propulsion system as much as possible and transforms the ground cost.
For solving the problems of the technologies described above, according to the present invention, provide a kind of combination direct current chopping regulating speed device of submarine electric propulsion, comprising: start buffer circuit, be used to limit the discharging current of batteries when starting; Boost chopper, the rotating speed that is used to improve the output voltage of quadrant DC chopper and improves propulsion electric machine; The electrochemical capacitance group is used to provide the required electric energy of the torpedo limit speed of a ship or plane and busbar voltage is carried out filtering; Two quadrant DC choppers are used to drive the direct current propulsion electric machine; The main circuit control unit is used for the work of control combination chopper group; Described combination direct current chopping regulating speed device, a startup buffer circuit, be connected the output of batteries, circuital current when being used to limit the submarine startup, a DC boosting chopper circuit, be connected the output of described startup buffer circuit and fuel cell, it can be in different operation areas, be operated in different states, ensured that electrochemical capacitance voltage exceeds the voltage of storage battery in specific operation area, a bank of ultracapacitors, be connected the output of DC boosting chopper, required electric energy when being used for storing the submarine limit speed of a ship or plane in advance, two quadrant DC choppers, be connected described DC boosting chopper circuit, the output of bank of ultracapacitors, can output voltage and the continuously adjustable direct current of electric current, drive two direct current propulsion electric machine work, a main circuit control unit, by reading tach signal, the electrochemical capacitance voltage signal, motor current signal, electric current of chopper signal, through computing, export four tunnel control signals, remove to drive described two four-quadrant choppers respectively, the DC boosting chopper, start buffer circuit work, this device is realized promoting submarine limit velocity at short notice, when the limit velocity of submarine by improving the output voltage of submarine direct current propulsion system, batteries still is operated in the constant-current discharge pattern, and the discharging current of keeping batteries is in a reasonable range.
As a preferred version of the present invention, the combination direct current chopping regulating speed device that described torpedo advances, lock mutually by precharge constant current chopper switching device and diverter switch, when detecting electrochemical capacitance and not setting up direct voltage as yet, diverter switch disconnects, the work of precharge constant current chopper switching device, charge to electrochemical capacitance in little electric current constant current chopper mode, avoid excessive impulse current, at this moment, the capacitance voltage set-point is V
DC *The actual value V that records with the voltage current transformer
DCCarry out the deviation computing, its result imports pi regulator and carries out the PI computing, and its result is constant current chopper direct current set-point I
L *, the actual current value I that this value and current transducer detect
LCarry out the deviation computing, be input to the pi regulator computing, output valve is connected with pwm driver and obtains DC PWM chopping voltage control signal, is used for controlling the size of the voltage and current of precharge constant current chopper switching device output, magnitude of voltage up to electrochemical capacitance is charged to enough levels in advance, at this moment, the switch closure in the device, the PWM waveform generator is put 0, precharge constant current chopper switching device quits work, diverter switch is closed a floodgate, and wherein, adopts low capacity IGBT in the pre-charge circuit.
As a preferred version of the present invention, the combination direct current chopping regulating speed device that described torpedo advances, when system under the operation of fuel cells situation, diverter switch disconnects and pwm driver puts 0, the fuel cell operation diverter switch is closed a floodgate, and boost chopper work is raised to fuel cell instability and the very soft direct current press pump of external characteristic in the electrochemical capacitance, set up a constant pressure source that the direct voltage characteristic is very hard, offer the quadrant DC chopper and be used for driving the direct current propulsion electric machine.
As a preferred version of the present invention, the combination direct current chopping regulating speed device that described torpedo advances, normal cruise duration of work at submarine, at this moment, the boost chopper switching device is not worked, storage battery is directly powered to electrochemical capacitance group and quadrant DC chopper by fly-wheel diode, and propulsion electric machine runs on given rotating speed ω
*, this set-point ω
*The real electrical machinery tachometer value ω that records with speed probe carries out the deviation computing, and operation values is sent into pi regulator and carried out the PI computing, and its operation result is the set-point I of direct current
A1 *, I
A2 *, the actual DC current value I that this electric current set-point and current transducer are recorded
A1, I
A2Carry out the deviation computing, this deviate is sent into pi regulator, and its output valve is the set-point U of direct voltage
1 *And U
2 *Again this direct voltage set-point is carried out calculation process, its output valve is connected with corresponding pwm driver respectively, obtains the PWM chopping voltage control signal of direct current, removes to drive the quadrant DC chopper with this control signal and just obtains the direct current that output voltage can be regulated continuously.
As a preferred version of the present invention, the combination direct current chopping regulating speed device that described torpedo advances is when estimating a certain stage of submarine need work in the limit speed of a ship or plane time, the switch opens in the device, the boost chopper switching device is started working, and the voltage given of boost chopper switching device is V
DC *The actual value that records with voltage transmitter compares, and this deviate is sent into pi regulator carry out computing, and its output valve is the set-point I of direct current
L *, the actual current value that this direct current set-point and current transducer are recorded is carried out the deviation computing and is sent into pi regulator and handle, and its output valve is the set-point V of direct voltage
C *Again this direct voltage set-point is carried out calculation process, the computing income value is connected with pwm driver, pwm driver produces the boost chopper control signal, this control signal is removed to drive the boost chopper switching device, just obtain the direct current that voltage can be regulated, according to the direct voltage set-point, carry out the boost chopper charging to the electrochemical capacitance group, because capacitance energy storage W=CU
2/ 2 square values with voltage increase, therefore electrochemical capacitance can store more energy by the voltage rising in the short period, simultaneously, the voltage of electrochemical capacitance will surpass the suitable ratio of storage battery, to keep the normal operating conditions of boost chopper, even have in DC bus-bar voltage under the situation of fluctuation, quadrant DC chopper (3), (4) still can keep stabilization of speed by adjusting the duty ratio of output voltage.
As a preferred version of the present invention, when submarine need operate in the limit velocity state, the quadrant DC chopper is operated in electric current maximum steady state output area, at this moment, the switching device of boost chopper still is in the boost chopper state, because the electrochemical capacitance change in voltage is excessive, the boost chopper system is by direct given voltage V
DC *Be transformed to direct given electric current I
DL *, boost chopper changes the constant current operating state over to.
As a preferred version of the present invention, the combination direct current chopping regulating speed device that described torpedo advances, the electrochemical capacitance group in circuit as direct voltage energy storage and filter, the electrochemical capacitance group is to adopt the bank of ultracapacitors of connection in series-parallel method of attachment, the structure of its single electrochemical capacitance is the wherein a kind of of electrochemical capacitor, comprises that double electric layer capacitor (Electric double layer capacitor) and fake capacitance device (Pesudocapacitor) etc. have the electrochemical capacitor of super large capacitor value.
As a preferred version of the present invention, the combination direct current chopping regulating speed device that described torpedo advances, precharge constant current chopper circuit, the control section of full control boost chopper switching device and two quadrant DC choppers all adopts independently control channel, and its controller and PWM generator are to carry out the operation of implementing computing by central processing unit (CPU), digital signal processor (DSP) or embedded controller (ARM) or extensive programmable gate array (FPGA, CPLD).
After having adopted said structure of the present invention,, can improve the limit velocity of submarine operation at short notice effectively owing to adopted electrochemical capacitance to carry out store energy; Can prevent simultaneously the impact that strong transient state impulse current causes the electrochemical storage cell group of types such as aluminium-silver oxide again, thereby ensure the discharge capability of batteries effectively, under the heavy-current discharge situation, the basic discharge capacity of battery pack remains on the ability level of constant-current discharge.
Adopt combination direct current chopping regulating speed of the present invention system speed governing operation on a large scale, its deceleration range-extending technique prolongs the voyage of submarine effectively, has reduced electromagnetic noise.
After having adopted said structure of the present invention,, can improve the limit velocity of submarine operation at short notice effectively owing to adopted electrochemical capacitance to carry out store energy; Can prevent simultaneously the impact that strong transient state impulse current causes the electrochemical storage cell group of types such as aluminium-silver oxide again, thereby ensure the discharge capability of batteries effectively, under the heavy-current discharge situation, the basic discharge capacity of battery pack remains on the ability level of constant-current discharge, simultaneously, can overcome the violent falling characteristic of aluminium-silver oxide when heavy-current discharge after adopting electrochemical capacitance and boost chopper, highest speed can be brought up to 25kn by 21kn.
Description of drawings
The present invention is described in further detail below in conjunction with accompanying drawing, in the accompanying drawings:
Fig. 1 is that the submarine direct current with electrochemical capacitance according to the present invention advances the governing system structured flowchart.
Fig. 2 is that the submarine direct current with electrochemical capacitance according to the present invention advances the governing system structure principle chart.
Fig. 3 is the control circuit block diagram according to combination chopper speed regulating device of the present invention.
Fig. 4 is existing submarine technology propulsion system structure schematic diagram.
Discharge voltage and the graph of relation of discharge time when Fig. 5 is the different discharge rate of conventional batteries.
Fig. 6 makes up chopper speed regulating device electrochemical capacitance voltage waveform variation diagram according to an embodiment of the invention.
Fig. 7 makes up chopper speed regulating device bus current oscillogram according to an embodiment of the invention.
Fig. 8 makes up the submarine armature supply wave form varies figure of chopping regulating speed system according to an embodiment of the invention.
Fig. 9 makes up the submarine speed of a ship or plane figure of chopping regulating speed system according to an embodiment of the invention.
Figure 10 is that existing submarine technology governing system submarine propulsion armature electric current changes oscillogram.
Figure 11 is existing submarine technology governing system submarine speed of a ship or plane figure.
Embodiment
Adopting the propulsion electric machine parameter in the invention process is armature resistance R
a=0.0038977 Ω, armature inductance L
a=0.0014H, the excitation winding resistance R
f=0.11175 Ω, the mutual inductance L between excitation winding and the armature winding
Af=0.00515H, electrochemical capacitance C=1500F.
Its principle of combination direct current chopping regulating speed of the present invention is to utilize the controllability of turn-off device IGBT and shutoff property, periodically quick switching IGBT, direct voltage source is cut into a series of arteries and veins charging voltages, the conduction ratio of control impuls is realized the adjusting of its output voltage average value, it can regulate the direct voltage of output, promptly can buck chopper, also can boost chopper.Simultaneously also can realize the motor regenerative braking, electric energy is fed back to ultra-capacitor, its buck chopper output voltage average value is derived as follows:
The conduction ratio of α-IGBT in the formula
U
a---load voltage (V)
U
s---the voltage (V) of direct-flow storage battery group
t
OnThe service time of-IGBT (s)
t
Off---the turn-off time (s) of IGBT
T——T＝t
on+t
off (3)
Change conduction ratio α, just can change motor terminal voltage mean value U
aThereby the terminal voltage of regulating armature winding reaches the purpose of regulation voltage.Like this, cooperate collaborative work with fly-wheel diode (10), just can realize the precharge process of little electric current constant current for electrochemical capacitance for precharge IGBT switch (3).
Under normal submarine operation operating state, the output voltage U of electrochemical capacitance
sApproaching with the voltage of the lead acid accumulator of submarine, only differ the PN junction tube voltage drop that fly-wheel diode 7 causes, to avoid switching loss, this moment, the electrochemical capacitance output voltage was following formula:
U
s≈E (4)
At the boost chopper working stage, the formula of the output voltage of electrochemical capacitance can be expressed as:
The duty cycle alpha of boost chopper wherein
1＜1, therefore, U
s＞E.
In sum, the present invention proposes combination DC chopped-wave control mode, solved the noise problem during switch switches, again in order to solve the influence of impulse current storage battery, add at circuit again and have electrochemical capacitance energy storage and filter circuit, electrochemical capacitance energy storage and filter circuit, DC chopped-wave pre-charge circuit, DC chopped-wave boost charge circuit and DC chopped-wave rotating-speed control circuit, cooperating.Normal cruise duration of work at submarine, boost chopper is not worked, and saving the energy content of battery, and is estimating when needing the maximum speed operation, and boost chopper is started working, and carries out boost charge to electrochemical capacitance, because capacitance energy storage W=CU
2/ 2 square values with voltage increase, therefore electrochemical capacitance can store more energy by the voltage rising in the short period, in the boost chopper charging process, the work of DC chopped-wave pre-charge circuit, make storage battery be in the constant-current discharge state as far as possible, submarine is when the state of emergency, because electrochemical capacitance stores considerable energy, its capacitance voltage will be higher than the suitable ratio of storage battery simultaneously, therefore can make submarine direct current propulsion electric machine obtain the rotating speed higher than direct battery power, improve the limit velocity of submarine effectively, simultaneously also can not produce excessive rush of current to storage battery, thereby ensure the discharge capability of batteries effectively, the DC chopped-wave motor speed control circuit carries out copped wave to institute's making alive, regulate the speed of a ship or plane that submarine operates in expectation, realize stepless speed regulation simultaneously.Submarine DC chopped-wave system is under the operation of fuel cells situation, and boost chopper work is raised to fuel cell instability and the very soft direct current press pump of external characteristic in the electrochemical capacitance, thereby sets up with a constant pressure source that the direct voltage characteristic is very hard.
Referring to Fig. 2, Fig. 2 is that the submarine direct current with electrochemical capacitance according to the present invention advances combination copped wave apparatus structure schematic diagram, this device is by the DC chopped-wave boost chopper of being made up of electrochemical capacitance group 14, dc inductance 9 and fly-wheel diode 13 53, the precharge constant current chopper circuit of forming by precharge constant current chopper switching device 6 and fly-wheel diode 78, the input of the two ends of electrochemical capacitance group 14 and quadrant DC chopper 3,4 links to each other.
Before submarine starts, when batteries just begins connecting system, when detecting electrochemical capacitance and not setting up direct voltage as yet, diverter switch 5 disconnects, 6 work of precharge constant current chopper switching device, magnitude of voltage up to electrochemical capacitance is charged to enough levels in advance, at this moment, the switch closure among the device 25:1, PWM waveform generator 21 is put 0, precharge constant current chopper switching device 6 quits work, and diverter switch 5 is closed a floodgate.
When system under the operation of fuel cells situation, diverter switch 5 disconnects and pwm driver 21 puts 0, fuel cell operation diverter switch 10 is closed a floodgate, boost chopper work, fuel cell instability and the very soft direct current press pump of external characteristic are raised in the electrochemical capacitance, set up a constant pressure source that the direct voltage characteristic is very hard, offer quadrant DC chopper 3,4 and be used for driving direct current propulsion electric machine 2.
Normal cruise duration of work at submarine, at this moment, boost chopper switching device 12 is not worked, and storage battery is directly powered to electrochemical capacitance group 14 and quadrant DC chopper 3,4 by fly-wheel diode 13.
When estimating a certain stage of submarine need work in the limit speed of a ship or plane time, the switch opens among the device 25:2, boost chopper switching device 12 is started working, and according to the direct voltage set-point, carries out the boost chopper charging to electrochemical capacitance group 14.
When submarine need operate in the limit velocity state, quadrant DC chopper 3,4 was operated in electric current maximum steady state output area, and at this moment, the switching device 12 of boost chopper still is in the boost chopper state, and the boost chopper system is by direct given voltage V
DC *Be transformed to direct given electric current I
DL *, boost chopper 12 changes the constant current operating state over to, and at this moment, batteries is operated in the constant-current discharge pattern, and the discharging current of batteries is maintained in the reasonable range, thereby ensures the regular picture capacity of batteries effectively.
Referring to Fig. 5, discharge voltage and the graph of relation of discharge time had been described storage battery with 0.1C when Fig. 5 was the different discharge rate of conventional batteries
0(C wherein
0Effective ampere-hour number for storage battery) time, batteries can be discharged 12 hours, and worked as with 1.0C
0During discharge, be 15 minutes the discharge time of storage battery, when the discharge rate of battery is excessive as can be seen, its effective ampere-hour number diminishes, as seen the electrochemical storage cell group that strong transient state impulse current causes types such as aluminium-silver oxide discharge capability at short notice reduces significantly, this properties influence of storage battery the flexibility and the range of existing electric propulsion submarine, and behind employing the present invention, when submarine raises speed, start pre-charge circuit, when electrochemical capacitance is charged to enough voltage, submarine enters the limit velocity operating state, for submarine direct current propulsion electric machine provides energy, satisfies the required high voltage in short-term of submarine raising speed by electrochemical capacitance, storage battery is still kept the stabling current state that is operated in, and ensures the regular picture capacity of batteries effectively.In addition, referring to Fig. 9, Figure 11 is according to combination chopping regulating speed of the present invention system, existing submarine governing system speed of a ship or plane comparison diagram, by contrast as can be seen, the limit speed of a ship or plane of submarine can reach more than the 25kn when adopting electrochemical capacitance and combination direct current chopping regulating speed, and adopts the submarine limit speed of a ship or plane of existing standard direct current propulsion electric machine can only reach 21kn.
Therefore, the motor limit velocity has obtained effective raising, thereby improved the limit speed of service of submarine, has overcome the shortcoming of traditional storage battery group, armature series parallel control system.
The technical staff in field of the present invention can easily realize other advantages of the present invention and modification.And the present invention is not limited to above-mentioned detailed explanation and example.Therefore, on the basis that does not deviate from spirit of the present invention and claims, can carry out various conversion.
Claims (8)
1. combination direct current chopping regulating speed device that is used for the submarine electric propulsion comprises:
A startup buffer circuit (8), the discharging current of batteries when being used to limit startup;
A boost chopper (53), the rotating speed that is used to improve the output voltage of quadrant DC chopper and improves propulsion electric machine;
An electrochemical capacitance group (14) is used to provide the required electric energy of the torpedo limit speed of a ship or plane and busbar voltage is carried out filtering;
Two quadrant DC choppers (3), (4) are used to drive the direct current propulsion electric machine;
A main circuit control unit (54) is used for the work of control combination chopper group;
It is characterized in that:
A startup buffer circuit (8), be connected the output of batteries (1), circuital current when being used to limit the submarine startup, a DC boosting chopper circuit (53), be connected the output of described startup buffer circuit and fuel cell, it can be in different operation areas, be operated in different states, ensured that electrochemical capacitance voltage exceeds the voltage of storage battery in specific operation area, a bank of ultracapacitors (14), be connected the output of DC boosting chopper, required electric energy when being used for storing the submarine limit speed of a ship or plane in advance, two quadrant DC choppers (3), be connected described DC boosting chopper circuit, the output of bank of ultracapacitors, can output voltage and the continuously adjustable direct current of electric current, drive two direct current propulsion electric machine work, a main circuit control unit (54), by reading tach signal, electrochemical capacitance voltage signal, motor current signal, the electric current of chopper signal, through computing, export four tunnel control signals, remove to drive described two four-quadrant choppers respectively, the DC boosting chopper starts buffer circuit work.
2. according to the combination direct current chopping regulating speed device of the submarine electric propulsion of claim 1, it is characterized in that, precharge constant current chopper switching device (6) and diverter switch (5) be locking mutually, when batteries just begins connecting system, when detecting electrochemical capacitance and not setting up direct voltage as yet, diverter switch (5) disconnects, precharge constant current chopper switching device (6) work, at this moment, the capacitance voltage set-point is V
DC *The actual value V that records with voltage current transformer (32)
DCCarry out the deviation computing, its result imports pi regulator (27) and carries out the PI computing, and its result is constant current chopper direct current set-point I
L *, the actual current value I that this value and current transducer (20) detect
LCarry out the deviation computing, be input to pi regulator (26) computing, output valve is connected with pwm driver (21) and obtains DC PWM chopping voltage control signal, be used for controlling the size of the voltage and current of precharge constant current chopper switching device (6) output, magnitude of voltage up to electrochemical capacitance is charged to enough levels in advance, at this moment, switch closure in the device (25:1), PWM waveform generator (21) is put 0, precharge constant current chopper switching device (6) quits work, diverter switch (5) is closed a floodgate, and wherein, adopts low capacity IGBT in the pre-charge circuit.
3. according to the combination direct current chopping regulating speed device of the submarine electric propulsion of claim 1, it is characterized in that, when system under the operation of fuel cells situation, diverter switch (5) disconnects and pwm driver (21) puts 0, fuel cell operation diverter switch (10) is closed a floodgate, boost chopper work, fuel cell instability and the very soft direct current press pump of external characteristic are raised in the electrochemical capacitance, set up a constant pressure source that the direct voltage characteristic is very hard, offer quadrant DC chopper (3), (4) are used for driving direct current propulsion electric machine (2).
4. according to the combination direct current chopping regulating speed device of the submarine electric propulsion of claim 1, it is characterized in that, normal cruise duration of work at submarine, boost chopper switching device (12) is not worked, storage battery directly passes through fly-wheel diode (13) to electrochemical capacitance group (14) and quadrant DC chopper (3), (4) power supply, propulsion electric machine (2) runs on given rotating speed ω
*, this set-point ω
*The real electrical machinery tachometer value ω that records with speed probe (19) carries out the deviation computing, and operation values is sent into pi regulator (30) and carried out the PI computing, and its operation result is the set-point I of direct current
A1 *, I
A2 *, the actual DC current value I that this electric current set-point and current transducer (20) are recorded
A1, I
A2Carry out the deviation computing, this deviate is sent into pi regulator (31), and its output valve is the set-point U of direct voltage
1 *And U
2 *Again this direct voltage set-point is carried out calculation process, its output valve respectively with pwm driver (23), (24) be connected, obtain the PWM chopping voltage control signal of direct current, remove to drive quadrant DC chopper (3) with this control signal, (4) just obtain the direct current that output voltage can be regulated continuously.
5. according to the submarine direct current chopping regulating speed electric propulsion system of claim 1, it is characterized in that, when estimating a certain stage of submarine need work in the limit speed of a ship or plane time, switch opens in the device (25:2), boost chopper switching device (12) is started working, and the voltage given of boost chopper switching device (12) is V
DC *The actual value that records with voltage transmitter (32) compares, and this deviate is sent into pi regulator (29) carry out computing, and its output valve is the set-point I of direct current
L *, the actual current value that this direct current set-point and current transducer are recorded is carried out the deviation computing and is sent into pi regulator (28) and handle, and its output valve is the set-point V of direct voltage
C *Again this direct voltage set-point is carried out calculation process, the computing income value is connected with pwm driver (22), pwm driver (22) produces the boost chopper control signal, this control signal is removed to drive boost chopper switching device (12), just obtain the direct current that voltage can be regulated,, carry out the boost chopper charging to electrochemical capacitance group (14) according to the direct voltage set-point.
6. according to the combination direct current chopping regulating speed device of the submarine electric propulsion of claim 1, it is characterized in that, when submarine need operate in the limit velocity state, quadrant DC chopper (3), (4) be operated in electric current maximum steady state output area, at this moment, the switching device of boost chopper (12) still is in the boost chopper state, and the boost chopper system is by direct given voltage V
DC *Be transformed to direct given electric current I
DL *, boost chopper (12) changes the constant current operating state over to.
7. according to the combination direct current chopping regulating speed device of the submarine electric propulsion of claim 1, it is characterized in that, electrochemical capacitance group (14) in circuit as direct voltage energy storage and filter, electrochemical capacitance group (14) is to adopt the bank of ultracapacitors of connection in series-parallel method of attachment, the structure of its single electrochemical capacitance is the wherein a kind of of electrochemical capacitor, comprises that double electric layer capacitor (Electric double layer capacitor) and fake capacitance device (Pesudocapacitor) etc. have the electrochemical capacitor of super large capacitor value.
8. according to the combination direct current chopping regulating speed device of the submarine electric propulsion of claim 1, it is characterized in that, precharge constant current chopper circuit (8), full control boost chopper switching device (12), with two quadrant DC choppers (3), (4) control section all adopts independently control channel, and its controller and PWM generator are by for example central processing unit (CPU), digital signal processor (DSP) or embedded controller (ARM) or the operation of programmable gate array (FPGA, CPLD) execution enforcement computing on a large scale of main circuit control unit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410060383 CN1665121A (en) | 2004-12-31 | 2004-12-31 | Combined DC chopped wave speed regulation submarine propulsion plant having super capacitor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410060383 CN1665121A (en) | 2004-12-31 | 2004-12-31 | Combined DC chopped wave speed regulation submarine propulsion plant having super capacitor |
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| CN1665121A true CN1665121A (en) | 2005-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200410060383 Pending CN1665121A (en) | 2004-12-31 | 2004-12-31 | Combined DC chopped wave speed regulation submarine propulsion plant having super capacitor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101673959B (en) * | 2009-08-14 | 2012-02-08 | 新源动力股份有限公司 | Power supply management system of fuel cell |
| CN105356547A (en) * | 2015-11-30 | 2016-02-24 | 中国东方电气集团有限公司 | Power conversion control method, device and system |
| WO2019192420A1 (en) * | 2018-04-04 | 2019-10-10 | 南京晓庄学院 | Extended-range-type fuel cell electric car power device and control method therefor |
| CN114097174A (en) * | 2020-06-16 | 2022-02-25 | 美的威灵电机技术（上海）有限公司 | Motor controller of electrical equipment, motor device of electrical equipment and electrical equipment |
-
2004
- 2004-12-31 CN CN 200410060383 patent/CN1665121A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101673959B (en) * | 2009-08-14 | 2012-02-08 | 新源动力股份有限公司 | Power supply management system of fuel cell |
| CN105356547A (en) * | 2015-11-30 | 2016-02-24 | 中国东方电气集团有限公司 | Power conversion control method, device and system |
| CN105356547B (en) * | 2015-11-30 | 2018-03-23 | 中国东方电气集团有限公司 | Electrical power conversion control method, device and system |
| WO2019192420A1 (en) * | 2018-04-04 | 2019-10-10 | 南京晓庄学院 | Extended-range-type fuel cell electric car power device and control method therefor |
| CN114097174A (en) * | 2020-06-16 | 2022-02-25 | 美的威灵电机技术（上海）有限公司 | Motor controller of electrical equipment, motor device of electrical equipment and electrical equipment |
| CN114097174B (en) * | 2020-06-16 | 2024-05-24 | 美的威灵电机技术（上海）有限公司 | Motor controller of electrical equipment, motor device of electrical equipment and electrical equipment |
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