CN107165771A - Wave power generation hydraulic PTO system synthesis experiment platform and its experimental method - Google Patents
Wave power generation hydraulic PTO system synthesis experiment platform and its experimental method Download PDFInfo
- Publication number
- CN107165771A CN107165771A CN201710511207.9A CN201710511207A CN107165771A CN 107165771 A CN107165771 A CN 107165771A CN 201710511207 A CN201710511207 A CN 201710511207A CN 107165771 A CN107165771 A CN 107165771A
- Authority
- CN
- China
- Prior art keywords
- oil
- hydraulic
- pressure
- accumulator
- valve
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
- F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Evolutionary Computation (AREA)
- Geometry (AREA)
- General Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The present invention relates to a kind of wave power generation hydraulic PTO system synthesis experiment platform and its experimental method, the synthesis experiment platform includes wave power generation hydraulic PTO system, wave and moves back and forth simulation system, monitoring system, data gathering system and switching device.The synthesis experiment platform can simulate the complicated two-pass motion of different sea situation lower transmission mechanism single-acting single-rod cylinder pistons, can simulate the different operating conditions of PTO system, can carry out system capacity experiment and key componentses characteristic test.
Description
Technical field
The invention belongs to wave power generation field, and in particular to a kind of wave power generation hydraulic PTO system synthesis experiment platform and
Its experimental method.
Background technology
In wave power generation field, the energy conversion system of apparatus for generating electricity by wave force is constituted by catching energy system and PTO system, is caught
Energy system trap wave energy, mechanical energy is converted into by wave energy, and PTO system converts mechanical energy into stable electric energy output.Mesh
Fluid pressure type being used preceding PTO system, wave power generation hydraulic PTO system generally comprises hydraulic cylinder, hydraulic motor, generator, liquid more
Press oil the main shaft company of road and the various hydraulic components for accumulation of energy, commutation, speed governing and pressure release, hydraulic motor and generator
Connect, catch energy system and wave energy is converted into mechanical energy and promotes the piston rod of hydraulic cylinder to move back and forth, the reciprocating motion of piston rod
Hydraulic oil is driven to move to promote hydraulic motor to rotate in hydraulic circuit, hydraulic motor drives generator to rotate by main shaft
Produce electric energy.
Can the correlation technique of wave power generation hydraulic PTO system and Physical Experiment directly influence wave-energy power generation technology big
Sizable application, the need for meeting wave power generation hydraulic PTO system engineering practice, it is necessary to enter to wave power generation hydraulic PTO system
Row Physical Experiment, to examine the feasibility and reliability of wave-energy power generation technology and equipment.At present, although have wave power generation hydraulic pressure
The Physical Experiment of PTO system is a lack of comprehensive experiment porch in each research unit's laboratory implementation, it is impossible to unified to carry out
Work condition analogue, system capacity experiment and key componentses characteristic test, conventional efficient are relatively low.
The content of the invention
, should it is an object of the invention to provide a kind of wave power generation hydraulic PTO system synthesis experiment platform and its experimental method
Synthesis experiment platform can simulate the complicated two-pass motion of different sea situation lower transmission mechanism single-acting single-rod cylinder pistons, can
To simulate the different operating conditions of PTO system, system capacity experiment and key componentses characteristic test can be carried out.
The technical solution adopted in the present invention is：
A kind of wave power generation hydraulic PTO system synthesis experiment platform, including wave power generation hydraulic PTO system, wave are reciprocal
Sport simulated system, monitoring system, data gathering system and switching device；
Wave power generation hydraulic PTO system include dynamometer machine, oil feeding reservoir, working connection, branch oil circuit, double-acting double-pole hydraulic cylinder and
Two single-acting single-rod cylinders, the piston rods of two single-acting single-rod cylinders respectively with double-acting double-pole hydraulic cylinder two
Piston rod is linked into an integrated entity, rodless cavity is connected with the entrance end of working connection respectively each via two branch oil circuits, on branch oil circuit
Being equipped with prevents the check valve of adverse current, and working connection becomes discharge capacity liquid provided with displacement hydraulic motor, accumulator and proportional velocity regulating valve is become
The main shaft of pressure motor is connected with dynamometer machine, and working connection entrance point is connected with overflow valve, oil feeding reservoir respectively with the working connection port of export and
Overflow valve is connected；
Wave moves back and forth fuel tank, oil filter and the constant displacement pump and three that simulation system includes being sequentially connected by fuel sucking pipe
Position four-way electrohydraulic servo valve, overflow valve, control circuit and the motor for driving constant displacement pump, 3-position 4-way electrohydraulic servo valve
Control mouth with control circuit be connected, P mouthfuls be connected by pressuring oil pipe with constant displacement pump, T mouthfuls connected by oil return pipe with fuel tank, A mouthfuls and B
Mouth is connected with two chambers of double-acting double-pole hydraulic cylinder respectively, is connected between pressuring oil pipe and oil return pipe by overflow valve；
Data gathering system include be located on the piston rod of two single-acting single-rod cylinders pull pressure sensor, be used for
The pressure for detect the displacement transducer of piston rod displacement, being located at working connection upper inlet end and become displacement hydraulic motor entrance end is passed
Speed probe and torque sensor that sensor, dynamometer machine are carried and it is located at the overflow valve of wave power generation hydraulic PTO system and enters
Mouth end, the flow sensor for becoming displacement hydraulic motor entrance point and accumulator oil port；
Switching device includes being located at the threeway that flow sensor entrance point is used to control flow sensor whether to access oil circuit
Valve and the stop valve being located between accumulator entrance point and oil feeding reservoir and the working connection port of export；
Monitoring system respectively with each sensor of data gathering system and control circuit, become displacement hydraulic motor and with survey
Work(machine connect, monitoring system can show in real time each sensor values, calculate power efficiency and storage experimental result and respectively to
Control circuit, become displacement hydraulic motor and with dynamometer machine output with reference to displacement signal, displacement signal and machine torque signal so as to
Realize and rule is moved back and forth to single-acting horizontal bar hydraulic cylinder piston, becomes displacement hydraulic motor discharge capacity V and spindle machine torque T control
System.
Further, the constant displacement pump port of export, change displacement hydraulic motor entrance end, working connection entrance point and two single-actings
Single-rod cylinder rodless cavity is equipped with pressure gauge.
Further, the flow sensor of accumulator oil port is provided with mutually opposing list for two-way, the two-way of parallel connection
To valve.
Further, triple valve is tee ball valve.
A kind of experimental method based on above-mentioned wave power generation hydraulic PTO system synthesis experiment platform, including system capacity are real
Test includes accumulator and the experiment of oil feeding reservoir working characteristics, proportional velocity regulating valve and overflow with working characteristics experiment, working characteristics experiment
The experiment of valve working characteristics, the experiment of change displacement hydraulic motor energy response and the experiment of hydraulic cylinder energy response.
Further, when carrying out system capacity experiment, including step：
S1, swivel tee valve, the sensor access oil circuit that will only become displacement hydraulic motor entrance point flow, open cut-off
Valve, accumulator and oil feeding reservoir accessed into oil circuit, make proportional velocity regulating valve standard-sized sheet；
S2, the reference displacement signal for changing monitoring system output, change single-acting single-rod cylinder reciprocating motion of the pistons rule
Rule, obtains a certain system workflow amount Q；
S3, the displacement signal for changing monitoring system output, change become displacement hydraulic motor discharge capacity V, obtain a certain rotating speed n；
S4, the machine torque signal for changing monitoring system output, change spindle machine torque T, obtain a certain system work
Pressure p；
S5, the input mechanical output P for calculating system under the operating pointiWith output mechanical power Po, computing system operational efficiency
η, running efficiency of system η=output mechanical power Po/ input mechanical output Pi；
S6, repeat S1~S5, by each operating point to change displacement hydraulic motor discharge capacity V, spindle machine torque T and measurement
With the system workflow amount Q calculated, system working pressure p, rotating speed n, input mechanical output Pi, output mechanical power PoAnd fortune
Form is made in line efficiency η.
Further, when carrying out accumulator and the experiment of oil feeding reservoir working characteristics, including step：
S1, swivel tee valve, the flow sensor access that will only become displacement hydraulic motor entrance point and accumulator oil port
Oil circuit, opening stop valve, by accumulator and oil feeding reservoir accesses oil circuit, makes proportional velocity regulating valve standard-sized sheet；
S2, change single-acting single-rod cylinder reciprocating motion of the pistons rule, change displacement hydraulic motor discharge capacity V and spindle machine
Torque T, makes wave power generation hydraulic PTO system be run under a certain operating mode, monitoring system working flow Q, system working pressure p,
Rotating speed n, accumulator hydraulic fluid port oil pressure p0, accumulator enters oil pump capacity q and becomes displacement hydraulic motor port of export oil pressure p1With the change of time
Change；
S3, a closing accumulator entrance point stop valve, accumulator is cut off from oil circuit, monitoring system working flow Q,
System working pressure p and rotating speed n change with time；
S4, the stop valve only closed between oil feeding reservoir and the working connection port of export, oil feeding reservoir is cut off from oil circuit, monitoring system
Unite working flow Q, system working pressure p, rotating speed n and change displacement hydraulic motor port of export oil pressure p1Change with time；
System workflow amount Q, the system working pressure p of accumulator and oil feeding reservoir are whether there is under operating mode described in S5, comparison and is turned
Fast n changes over time situation, the influence of research accumulator and oil feeding reservoir to the stability of a system；According to accumulator hydraulic fluid port oil pressure p0With
The change of time, pressure characteristic during research accumulator work；Enter oil pump capacity q according to accumulator to change with time, research stores
Discharge characteristic during energy device work；Contrast whether there is oil feeding reservoir time-varying displacement hydraulic motor port of export oil pressure p1Change over time feelings
Condition, pressure characteristic during research oil feeding reservoir work.
Further, when carrying out proportional velocity regulating valve and the experiment of overflow valve working characteristics, including step：
S1, swivel tee valve, only by the overflow valve entrance point of wave power generation hydraulic PTO system, become displacement hydraulic motor enter
The flow sensor access oil circuit at mouthful end, opening stop valve, by accumulator and oil feeding reservoir accesses oil circuit, makes proportional velocity regulating valve complete
Open；
S2, change single-acting single-rod cylinder reciprocating motion of the pistons rule, change displacement hydraulic motor discharge capacity V and spindle machine
Torque T, makes wave power generation hydraulic PTO system be run under a certain operating mode, at a time reduces opening for proportional velocity regulating valve suddenly
Degree, monitoring system working flow Q, system working pressure p, rotating speed n, the spillway discharge q of wave power generation hydraulic PTO system0And accumulation of energy
Device hydraulic fluid port oil pressure p0Change with time；
S3, according to system workflow amount Q, system working pressure p and rotating speed n, research proportional velocity regulating valve closing process is to being
The influence for stability of uniting；According to accumulator hydraulic fluid port oil pressure p0, system working pressure p and system workflow amount Q, study proportionality velocity modulation
Pressure flow characteristics auto when valve works；According to accumulator hydraulic fluid port oil pressure p0With the spillway discharge q of wave power generation hydraulic PTO system0, grind
Study carefully the pressure flow characteristics auto during overflow valve work of wave power generation hydraulic PTO system.
Further, when carrying out becoming the experiment of displacement hydraulic motor energy response, including step：
S1, swivel tee valve, the flow sensor access oil circuit that will only become displacement hydraulic motor entrance point, open cut-off
Valve, accumulator and oil feeding reservoir put into, make proportional velocity regulating valve standard-sized sheet；
S2, change single-acting single-rod cylinder reciprocating motion of the pistons rule, change displacement hydraulic motor discharge capacity V and spindle machine
Torque T, makes wave power generation hydraulic PTO system be run under a certain operating mode, measures system workflow amount Q, the system of the operating point
Operating pressure p, rotating speed n, computing system internal hydraulic pressure power PhWith output mechanical power Po, calculate hydraulic motor efficiency etam, hydraulic pressure
Moyor ηm=output mechanical power Po/ internal system hydraulic power Ph；
S3, repeat S2, by each operating point to change displacement hydraulic motor discharge capacity V, spindle machine torque T and measurement and meter
Counted system workflow amount Q, system working pressure p, rotating speed n, internal system hydraulic power Ph, output mechanical power PoAnd liquid
Pressure motor efficiency etamForm is made.
Further, when carrying out the experiment of hydraulic cylinder energy response, including step：
S1, swivel tee valve, the flow sensor access oil circuit that will only become displacement hydraulic motor entrance point, open cut-off
Valve, accumulator and oil feeding reservoir accessed into oil circuit, make flow speed control valve standard-sized sheet；
S2, change single-acting single-rod cylinder reciprocating motion of the pistons rule, become displacement hydraulic motor discharge capacity V and dynamometer
Torque T, makes wave power generation hydraulic PTO system be run under a certain operating mode, measures the system workflow amount Q of the operating point, is
Operating pressure of uniting p, rotating speed n, computing system internal hydraulic pressure power PhWith input mechanical output Pi, calculate hydraulic cylinder efficiency etac, hydraulic pressure
Cylinder efficiency etac=internal system hydraulic power Ph/ input mechanical output Pi；
S3, repeat S2, by each operating point to change displacement hydraulic motor discharge capacity V, spindle machine torque T and measurement and meter
Counted system workflow amount Q, system working pressure p, rotating speed n, internal system hydraulic power Ph, input mechanical output PiAnd liquid
Cylinder pressure efficiency etacForm is made.
The beneficial effects of the invention are as follows：
The synthesis experiment platform exports different reference displacement signal by monitoring system and (such as sine wave, triangular wave and contained
Have complex wave of a variety of different frequency harmonic components etc.) different sea situation lower transmission mechanism single-acting single-rod cylinders work can be simulated
The complicated two-pass motion of plug；The synthesis experiment platform is by changing single-acting single-rod cylinder reciprocating motion of the pistons rule, change
Displacement hydraulic motor discharge capacity V and spindle machine torque T, thus it is possible to vary system workflow amount Q, system working pressure p and rotating speed n,
So as to simulate the different operating conditions of PTO system；The synthesis experiment platform sets multiple sensors, and decapacitation carries out system capacity experiment
Outside can also carry out key componentses characteristic test.
Brief description of the drawings
Fig. 1 is that dynamometer machine (is replaced with generating by the hydraulic schematic diagram of wave power power hydraulic PTO system in the embodiment of the present invention
Machine).
Fig. 2 is the fundamental diagram of fluid pressure type wave reciprocating motion simulation device in the embodiment of the present invention.
Fig. 3 is the hydraulic schematic diagram of wave power power hydraulic PTO system synthesis experiment platform in the embodiment of the present invention.
Fig. 4 is the data flow figure of monitoring system in the embodiment of the present invention.
In figure：1- fuel tanks；2- oil filters；3- constant displacement pumps；4- motor；5- check valves；6- pressure gauges；7- overflow valves；8-
Accumulator；9- 3-position 4-way electrohydraulic servo valves；10- single-acting single-rod cylinders；11- pull pressure sensor；12- double acting double-rods
Hydraulic cylinder；13- displacement transducers；14- pressure sensors；15- triple valves；16- proportional velocity regulating valves；17- flow sensors；18-
Become displacement hydraulic motor；19- dynamometer machines；20- stop valves；21- oil feeding reservoirs；22- generators；23- working connections；24- pressuring oil pipes；
25- oil return pipes；26- fuel sucking pipes；27- controls circuit.
Embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples.
As shown in figure 3, a kind of wave power generation hydraulic PTO system synthesis experiment platform, including wave power generation hydraulic pressure PTO systems
System, wave move back and forth simulation system, monitoring system, data gathering system and switching device.
As shown in figures 1 and 3, wave power generation hydraulic PTO system (in Fig. 1, is somebody's turn to do including dynamometer machine 19 for the ease of understanding
The real work situation of system, generator 22 is replaced with by dynamometer machine 19), oil feeding reservoir 21, working connection 23, branch oil circuit, double acting
Dual-rod hydraulic cylinder 12 and two single-acting single-rod cylinders 10, the piston rods of two single-acting single-rod cylinders 10 respectively with double cropping
Linked into an integrated entity with two piston rods of dual-rod hydraulic cylinder 12, rodless cavity each via two branch oil circuits respectively with working connection 23
Entrance end is connected, and being equipped with branch oil circuit prevents the check valve 5 of adverse current, working connection 23 provided with become displacement hydraulic motor 18,
Accumulator 8 and proportional velocity regulating valve 16, the main shaft for becoming displacement hydraulic motor 18 are connected with dynamometer machine 19, the connection of the entrance point of working connection 23
There is overflow valve 7, oil feeding reservoir 21 is connected with the port of export of working connection 23 and overflow valve 7 respectively.
The wave power generation hydraulic PTO system can realize hydraulic cylinder dual-stroke work application.The two of wave power generation hydraulic PTO system
Individual single-acting single-rod cylinder 10 can be converted to hydraulic energy by machinery is moved back and forth, and the motion of its piston two-pass makes hydraulic oil two
Flowing is come and gone between the rodless cavity of individual single-acting single-rod cylinder 10；Hydraulic oil is come and gone flowing and turned by four check valves 5 in branch oil circuit
It is melted into the one-way flow in working connection 23；Become displacement hydraulic motor 18 in working connection 23 and two-pass hydraulic energy is converted into whirler
Rotating mechanical energy is converted into regulated power and exported by tool energy, generator 22；The effect of accumulator 8 is energy-storing pressure-stabilizing current stabilization；Oil feeding reservoir
21 effect is to maintain to become the oil-out relative oil pressures of displacement hydraulic motor 18 into zero, while to hydraulic pressure oil supply cylinder, auxiliary voltage stabilizing is steady
Stream；The effect of overflow valve 7 and proportional velocity regulating valve 16 is, when input power or flow are more than limit value, proportional velocity regulating valve 16 is opened
Degree reduces, throttle grverning, the discharge excess traffic of overflow valve 7, protects system.The wave power generation hydraulic PTO system can realize change
Energy efficient under sea situation is extracted.When wave power generation hydraulic PTO system works, sea situation change causes single-acting single-rod cylinder 10
Characteristics of motion change, wave power generation hydraulic PTO system, which passes through to change, becomes displacement hydraulic motor 18 discharge capacity V, spindle machine torque T
Changing operating condition, (system workflow amount Q, rotating speed n and system working pressure p) make itself to be operated in high efficient district, realize change
Energy efficient is extracted under sea situation.(volumetric efficiency of hydraulic motor, rotating speed n and the pass for becoming the discharge capacity V of displacement hydraulic motor 18 are not considered
System is represented by n=Q/V；The pass of hydraulic motor hydraulic machinery efficiency, system working pressure p and spindle machine torque T is not considered
System is represented by p=2 π T/V)
In wave power generation hydraulic PTO system, generator 22 is replaced with dynamometer machine 19, is easy to during experiment change and measurement master
Shaft mechanical torque T and measurement rotating speed n.
As shown in Figures 2 and 3, wave moves back and forth fuel tank 1, the filter that simulation system includes being sequentially connected by fuel sucking pipe 26
Oily device 2 and constant displacement pump 3 and 3-position 4-way electrohydraulic servo valve 9, control circuit 27 and the motor 4 for driving constant displacement pump 3, three
The control mouth of position four-way electrohydraulic servo valve 9 is connected with control circuit 27, P mouthfuls be connected by pressuring oil pipe 14 with constant displacement pump 3, T mouthfuls it is logical
Cross oil return pipe 25 connected with fuel tank 1, A mouthfuls and B mouthfuls connected respectively with two chambers of double-acting double-pole hydraulic cylinder 12, pressuring oil pipe 14 with return
Connected between oil pipe 25 by overflow valve 7.
The wave move back and forth simulation system can simulated waves effect two single-acting single-rod cylinders 10 of underdrive live
The complicated two-pass motion of plug.Oil return in fuel tank 1 is changed into force feed by oil filter 2 and constant displacement pump 3；Overflow valve 7 is stable to press
Oil pressure makes hydraulic power source be operated in constant pressure operating mode；Control circuit 27 receives the hydraulic cylinder piston actual bit from displacement transducer 13
Shifting signal and the reference displacement signal for carrying out self-monitoring system, after both departures are amplified by PI resume modules and amplifier
Current controling signal is converted into, and is given 3-position 4-way electrohydraulic servo valve 9, the valve element of control 3-position 4-way electrohydraulic servo valve 9
Motion, and then control the oil inlet quantity of 12 liang of chambers of double-acting double-pole hydraulic cylinder its piston is done complicated two-pass motion, so as to realize
The complicated two-pass motion of two pistons of single-acting single-rod cylinder 10.
As shown in figure 3, data gathering system includes the tension and compression being located on the piston rod of two single-acting single-rod cylinders 10
Force snesor 11, the displacement transducer 13 for detecting piston rod displacement, be located at the upper inlet end of working connection 23 and become displacement hydraulic
Speed probe and torque sensor and be located at wave power that pressure sensor 14, the dynamometer machine 19 of the entrance end of motor 18 are carried
The entrance point of overflow valve 7 of power hydraulic PTO system, the flow biography for becoming the entrance point of displacement hydraulic motor 18 and the oil port of accumulator 8
Sensor 17.
In data gathering system, speed probe is used for measuring rotating speed n, and torque sensor is used for measuring spindle machine turn
Square T, both combine the output mechanical power P under each operating condition of computing systemo(known Po=2 π nT).Displacement transducer 13 is used
To measure the liquid piston rod actual displacement signal x that simulation system feedback signal is moved back and forth as wave, pull pressure sensor 11
For measuring the pressure F that two piston rods of single-acting single-rod cylinder 10 are subject to1And F2, both respectively run with reference to computing system
Input mechanical output P under operating modei(known Pi=(F1-F2) x/t, wherein t is the time).Become the entrance point of displacement hydraulic motor 18
Pressure sensor 14 be used for measuring system operating pressure p, become the entrance point of displacement hydraulic motor 18 flow sensor 17 be used for
Measuring system working flow Q, both combine the internal hydraulic pressure power P under each operating condition of computing systemh(known Ph=pQ).Ripple
The flow sensor 17 of the hydraulic fluid port of overflow valve 7 of power power hydraulic PTO system is used for measuring the overflow of wave power generation hydraulic PTO system
Measure q0, the flow sensor 17 of the oil port of accumulator 8, which is used for measuring accumulator 8, enters oil pump capacity q.The pressure at the upper inlet end of working connection 23
Force snesor 14 is used for measuring the oil port oil pressure p of accumulator 80(i.e. the entrance point oil pressure of working connection 23), becomes displacement hydraulic motor 18
The pressure sensor 14 of the port of export is used for measuring change displacement hydraulic motor 18 port of export oil pressure p1。
As shown in figure 3, switching device includes being located at the entrance point of flow sensor 17 is used for whether controlling flow sensor 17
The stop valve for accessing the triple valve 15 of oil circuit and being located between the entrance point of accumulator 8 and oil feeding reservoir 21 and the port of export of working connection 23
20.Stop valve 20 is used for whether there is the contrast experiment of accumulator 8 and oil feeding reservoir 21, and triple valve 15 is used to carry out system capacity
During experiment, flow sensor 17 is cut off to reduce experimental error from oil circuit.
As shown in figure 4, each sensor and control circuit 27, the change discharge capacity liquid of monitoring system respectively with data gathering system
Pressure motor 18 and it is connected with dynamometer machine 19, monitoring system can show each sensor values in real time, calculate power efficiency and storage
Experimental result is simultaneously exported with reference to displacement signal, discharge capacity respectively to control circuit 27, change displacement hydraulic motor 18 and with dynamometer machine 19
Signal and machine torque signal move back and forth rule, change displacement hydraulic motor 18 to single-acting horizontal bar hydraulic cylinder piston so as to realize
Discharge capacity V and spindle machine torque T control.
As shown in figure 3, in the present embodiment, the port of export of constant displacement pump 3, change displacement hydraulic motor 18 entrance end, working connection
23 entrance points and two rodless cavities of single-acting single-rod cylinder 10 are equipped with pressure gauge 6, for real-time display system key position
Pressure, and pressure sensor 14 is proofreaded.The flow sensor 17 of the oil port of accumulator 8 is two-way in parallel, two-way
Mutually opposing check valve 5 is provided with, using two-way flow sensor 17 and sets mutually opposing check valve 5 to make accumulation of energy
The oil-feed of device 8 and fuel-displaced not in same oil circuit, reduces measurement error.Triple valve 15 is tee ball valve.
The synthesis experiment platform exports different reference displacement signal by monitoring system and (such as sine wave, triangular wave and contained
Have complex wave of a variety of different frequency harmonic components etc.) different sea situation lower transmission mechanism single-acting single-rod cylinders 10 can be simulated
The complicated two-pass motion of piston；The synthesis experiment platform is advised by changing the reciprocating motion of the pistons of single-acting single-rod cylinder 10
Rule, become the discharge capacity V of displacement hydraulic motor 18 and spindle machine torque T, thus it is possible to vary system workflow amount Q, system working pressure p and
Rotating speed n, so as to simulate the different operating conditions of PTO system；The synthesis experiment platform sets multiple sensors, and decapacitation carries out system energy
Key componentses characteristic test can also be carried out outside amount experiment.
Based on the experimental method of above-mentioned wave power generation hydraulic PTO system synthesis experiment platform, including system capacity experiment and
Working characteristics is tested, and working characteristics experiment includes accumulator 8 and the experiment of the working characteristics of oil feeding reservoir 21, proportional velocity regulating valve 16 and overflow
The experiment of the working characteristics of valve 7, the experiment of change displacement hydraulic motor 18 energy response and the experiment of hydraulic cylinder energy response.
When carrying out system capacity experiment, including step：
S1, swivel tee valve 15, the flow sensor access oil circuit that will only become displacement hydraulic motor entrance point, open cut-off
Valve 20, accumulator 8 and oil feeding reservoir 21 accessed into oil circuit, make the standard-sized sheet of proportional velocity regulating valve 16；
S2, the reference displacement signal for changing monitoring system output, the reciprocating motion of the pistons of change single-acting single-rod cylinder 10
Rule, obtains a certain system workflow amount Q；
S3, the displacement signal for changing monitoring system output, change become the discharge capacity V of displacement hydraulic motor 18, obtain a certain rotating speed
n；
S4, the machine torque signal for changing monitoring system output, change spindle machine torque T, obtain a certain system work
Pressure p；
S5, the input mechanical output P for calculating system under the operating pointiWith output mechanical power Po, computing system operational efficiency
η, running efficiency of system η=output mechanical power Po/ input mechanical output Pi；
S6, repeat S1~S5, by each operating point to the discharge capacity V of change displacement hydraulic motor 18, spindle machine torque T and survey
System workflow amount Q, system working pressure p, rotating speed n, the input mechanical output P for measuring and calculatingi, output mechanical power PoWith
Form is made in operational efficiency η.
When carrying out accumulator 8 and the experiment of the working characteristics of oil feeding reservoir 21, including step：
S1, swivel tee valve 15, the flow sensor that will only become the entrance point of displacement hydraulic motor 18 and the oil port of accumulator 8
15 access oil circuits, opening stop valve 20, by accumulator 8 and oil feeding reservoir 21 access oil circuit, make the standard-sized sheet of proportional velocity regulating valve 16；
S2, the reciprocating motion of the pistons rule of change single-acting single-rod cylinder 10, the change discharge capacity V of displacement hydraulic motor 18 and main shaft
Machine torque T, makes wave power generation hydraulic PTO system be run under a certain operating mode, monitoring system working flow Q, system work pressure
Power p, rotating speed n, the hydraulic fluid port oil pressure p of accumulator 80, accumulator 8 enters oil pump capacity q and becomes displacement hydraulic motor 18 port of export oil pressure p1At any time
Between change；
S3, an entrance point of closing accumulator 8 stop valve 20, accumulator 8 are cut off from oil circuit, monitoring system workflow
Amount Q, system working pressure p and rotating speed n change with time；
S4, the stop valve 20 only closed between oil feeding reservoir 21 and the port of export of working connection 23, oil feeding reservoir 21 is cut from oil circuit
Remove, monitoring system working flow Q, system working pressure p, rotating speed n and change displacement hydraulic motor 18 port of export oil pressure p1With the time
Change；
Whether there is under operating mode described in S5, comparison accumulator 8 and oil feeding reservoir 21 system workflow amount Q, system working pressure p and
Rotating speed n changes over time situation, the influence of research accumulator 8 and oil feeding reservoir 21 to the stability of a system；According to the hydraulic fluid port of accumulator 8 oil
Press p0Change with time, pressure characteristic when research accumulator 8 works；Changes of the oil pump capacity q with the time is entered according to accumulator 8
Change, discharge characteristic when research accumulator 8 works；Contrast whether there is the port of export oil pressure p of 21 time-varying displacement hydraulic motor of oil feeding reservoir 181
Change over time situation, pressure characteristic when research oil feeding reservoir 21 works.
When carrying out proportional velocity regulating valve 16 and the experiment of the working characteristics of overflow valve 7, including step：
S1, swivel tee valve 15, only by the entrance point of overflow valve 7 of wave power generation hydraulic PTO system, become displacement hydraulic motor
The access oil circuit of flow sensor 17 of 18 entrance points, opening stop valve 20, by accumulator 8 and oil feeding reservoir 21 accesses oil circuit, makes ratio
The example standard-sized sheet of flow speed control valve 16；
S2, the reciprocating motion of the pistons rule of change single-acting single-rod cylinder 10, the change discharge capacity V of displacement hydraulic motor 18 and main shaft
Machine torque T, makes wave power generation hydraulic PTO system be run under a certain operating mode, at a time reduces proportional velocity regulating valve suddenly
16 aperture, monitoring system working flow Q, system working pressure p, rotating speed n, the spillway discharge q of wave power generation hydraulic PTO system0
With the hydraulic fluid port oil pressure p of accumulator 80(i.e. the entrance point oil pressure of working connection 23) changes with time；
S3, according to system workflow amount Q, system working pressure p and rotating speed n, study the closing process pair of proportional velocity regulating valve 16
The influence of the stability of a system；According to the hydraulic fluid port oil pressure p of accumulator 80, system working pressure p and system workflow amount Q, study ratio
Pressure flow characteristics auto when flow speed control valve 16 works；According to the hydraulic fluid port oil pressure p of accumulator 80With the overflow of wave power generation hydraulic PTO system
Measure q0, the pressure flow characteristics auto when overflow valve 7 of research wave power generation hydraulic PTO system works.
When become the experiment of the energy response of displacement hydraulic motor 18, including step：
S1, swivel tee valve 15, only by become the entrance point of displacement hydraulic motor 18 flow sensor 17 access oil circuit, open
Stop valve 20, accumulator 8 and oil feeding reservoir 21 put into, make the standard-sized sheet of proportional velocity regulating valve 16；
S2, the reciprocating motion of the pistons rule of change single-acting single-rod cylinder 10, the change discharge capacity V of displacement hydraulic motor 18 and main shaft
Machine torque T, makes wave power generation hydraulic PTO system be run under a certain operating mode, measure the operating point system workflow amount Q,
System working pressure p, rotating speed n, computing system internal hydraulic pressure power PhWith output mechanical power Po, calculate hydraulic motor efficiency etam,
Hydraulic motor efficiency etam=output mechanical power Po/ internal system hydraulic power Ph；
S3, repeat S2, by each operating point to the discharge capacity V of change displacement hydraulic motor 18, spindle machine torque T and measurement and
System workflow amount Q, system working pressure p, rotating speed n, the internal system hydraulic power P calculatedh, output mechanical power PoWith
Hydraulic motor efficiency etamForm is made.
When carrying out the experiment of hydraulic cylinder energy response, including step：
S1, swivel tee valve 15, only by become the entrance point of displacement hydraulic motor 18 flow sensor 17 access oil circuit, open
Stop valve 20, accumulator 8 and oil feeding reservoir 21 accessed into oil circuit, make flow speed control valve standard-sized sheet；
S2, the reciprocating motion of the pistons rule of change single-acting single-rod cylinder 10, the change discharge capacity V of displacement hydraulic motor 18 and measurement of power
The torque T of device, makes wave power generation hydraulic PTO system be run under a certain operating mode, measures the system workflow amount of the operating point
Q, system working pressure p, rotating speed n, computing system internal hydraulic pressure power PhWith input mechanical output Pi, calculate hydraulic cylinder efficiency etac,
Hydraulic cylinder efficiency etac=internal system hydraulic power Ph/ input mechanical output Pi；
S3, repeat S2, by each operating point to the discharge capacity V of change displacement hydraulic motor 18, spindle machine torque T and measurement and
System workflow amount Q, system working pressure p, rotating speed n, the internal system hydraulic power P calculatedh, input mechanical output PiWith
Hydraulic cylinder efficiency etacForm is made.
It should be appreciated that for those of ordinary skills, can according to the above description be improved or converted,
And all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Claims (10)
1. a kind of wave power generation hydraulic PTO system synthesis experiment platform, it is characterised in that：Including wave power generation hydraulic PTO system,
Wave moves back and forth simulation system, monitoring system, data gathering system and switching device；
Wave power generation hydraulic PTO system includes dynamometer machine, oil feeding reservoir, working connection, branch oil circuit, double-acting double-pole hydraulic cylinder and two
Single-acting single-rod cylinder, two pistons of the piston rods of two single-acting single-rod cylinders respectively with double-acting double-pole hydraulic cylinder
Bar is linked into an integrated entity, rodless cavity is connected with the entrance end of working connection respectively each via two branch oil circuits, is all provided with branch oil circuit
There is the check valve for preventing adverse current, working connection becomes displacement hydraulic horse provided with displacement hydraulic motor, accumulator and proportional velocity regulating valve is become
The main shaft reached is connected with dynamometer machine, and working connection entrance point is connected with overflow valve, oil feeding reservoir respectively with the working connection port of export and overflow
Valve is connected；
Wave reciprocating motion simulation system includes fuel tank, oil filter and the constant displacement pump being sequentially connected by fuel sucking pipe and three four
Energization hydraulic servo, control circuit, overflow valve and the motor for driving constant displacement pump, the control of 3-position 4-way electrohydraulic servo valve
Mouthful be connected with control circuit, P mouthfuls be connected by pressuring oil pipe with constant displacement pump, T mouthfuls connected by oil return pipe with fuel tank, A mouthfuls and B mouthfuls divide
Do not connect, connected between pressuring oil pipe and oil return pipe by overflow valve with two chambers of double-acting double-pole hydraulic cylinder, motor main shaft and
Constant displacement pump main shaft is connected by key；
Data gathering system includes being located at pull pressure sensor on the piston rod of two single-acting single-rod cylinders, for detecting
The displacement transducer of piston rod displacement, be located at working connection entrance point and become displacement hydraulic motor entrance end pressure sensor,
Speed probe and torque sensor that dynamometer machine is carried and be located at wave power generation hydraulic PTO system overflow valve entrance point,
Become the flow sensor of displacement hydraulic motor entrance point and accumulator oil port；
Switching device include be located at flow sensor entrance point be used for control flow sensor whether access the triple valve of oil circuit with
And it is located at the stop valve between accumulator entrance point and oil feeding reservoir and the working connection port of export；
Each sensor and control circuit, change displacement hydraulic motor and and dynamometer machine of monitoring system respectively with data gathering system
Connection, monitoring system can show each sensor values in real time, calculate power efficiency and store experimental result and respectively to control
Circuit, become displacement hydraulic motor and with dynamometer machine output with reference to displacement signal, displacement signal and machine torque signal so as to realizing
Rule is moved back and forth to single-acting horizontal bar hydraulic cylinder piston, becomes displacement hydraulic motor discharge capacity V and spindle machine torque T control.
2. the wave power generation hydraulic PTO system synthesis experiment platform as shown in claim 1, it is characterised in that：Quantitative pump discharge
End, change displacement hydraulic motor entrance end, working connection entrance point and two single-acting single-rod cylinder rodless cavities are equipped with pressure
Table.
3. the wave power generation hydraulic PTO system synthesis experiment platform as shown in claim 1, it is characterised in that：Accumulator hydraulic fluid port
The flow sensor at place is two-way in parallel, two-way is provided with mutually opposing check valve.
4. the wave power generation hydraulic PTO system synthesis experiment platform as shown in claim 1, it is characterised in that：Triple valve is three
Pass ball valve.
5. a kind of experimental method based on above-mentioned wave power generation hydraulic PTO system synthesis experiment platform, it is characterised in that：Including being
Energy experiment and the working characteristics of uniting are tested, and working characteristics experiment includes accumulator and the experiment of oil feeding reservoir working characteristics, proportionality velocity modulation
Valve and the experiment of overflow valve working characteristics, the experiment of change displacement hydraulic motor energy response and the experiment of hydraulic cylinder energy response.
6. wave power generation hydraulic PTO system experimental method as claimed in claim 5, it is characterised in that：Carry out system capacity real
When testing, including step：
S1, swivel tee valve, only will become displacement hydraulic motor entrance point flow sensor access oil circuit, opening stop valve, general
Accumulator and oil feeding reservoir access oil circuit, make proportional velocity regulating valve standard-sized sheet；
S2, the reference displacement signal for changing monitoring system output, change single-acting single-rod cylinder reciprocating motion of the pistons rule, are obtained
To a certain system workflow amount Q；
S3, the displacement signal for changing monitoring system output, change become displacement hydraulic motor discharge capacity V, obtain a certain rotating speed n；
S4, the machine torque signal for changing monitoring system output, change spindle machine torque T, obtain a certain system working pressure
p；
S5, the input mechanical output P for calculating system under the operating pointiWith output mechanical power Po, computing system operational efficiency η is
Operational efficiency of uniting η=output mechanical power Po/ input mechanical output Pi；
S6, repeat S1~S5, by each operating point to change displacement hydraulic motor discharge capacity V, spindle machine torque T and measurement and meter
Counted system workflow amount Q, system working pressure p, rotating speed n, input mechanical output Pi, output mechanical power PoWith operation effect
Form is made in rate η.
7. wave power generation hydraulic PTO system experimental method as claimed in claim 5, it is characterised in that：Carry out accumulator and benefit
When fuel tank working characteristics is tested, including step：
S1, swivel tee valve, the flow sensor access oil circuit that will only become displacement hydraulic motor entrance point and accumulator oil port,
Opening stop valve, accumulator and oil feeding reservoir accessed into oil circuit, make proportional velocity regulating valve standard-sized sheet；
S2, change single-acting single-rod cylinder reciprocating motion of the pistons rule, change displacement hydraulic motor discharge capacity V and spindle machine torque
T, makes wave power generation hydraulic PTO system be run under a certain operating mode, monitoring system working flow Q, system working pressure p, rotating speed
N, accumulator hydraulic fluid port oil pressure p0, accumulator enters oil pump capacity q and becomes displacement hydraulic motor port of export oil pressure p1Change with time；
S3, a closing accumulator entrance point stop valve, accumulator is cut off from oil circuit, monitoring system working flow Q, system
Operating pressure p and rotating speed n change with time；
S4, the stop valve only closed between oil feeding reservoir and the working connection port of export, oil feeding reservoir are cut off from oil circuit, monitoring system work
Make flow Q, system working pressure p, rotating speed n and become displacement hydraulic motor port of export oil pressure p1Change with time；
Whether there is under operating mode described in S5, comparison system workflow amount Q, system working pressure p and the rotating speed n of accumulator and oil feeding reservoir with
Time change situation, the influence of research accumulator and oil feeding reservoir to the stability of a system；According to accumulator hydraulic fluid port oil pressure p0With the time
Change, research accumulator work when pressure characteristic；Enter oil pump capacity q according to accumulator to change with time, study accumulator
Discharge characteristic during work；Contrast whether there is oil feeding reservoir time-varying displacement hydraulic motor port of export oil pressure p1Situation is changed over time, is ground
Study carefully pressure characteristic during oil feeding reservoir work.
8. wave power generation hydraulic PTO system experimental method as claimed in claim 5, it is characterised in that：Carry out proportional velocity regulating valve
When being tested with overflow valve working characteristics, including step：
S1, swivel tee valve, only by the overflow valve entrance point of wave power generation hydraulic PTO system, become displacement hydraulic motor entrance point
Flow sensor access oil circuit, opening stop valve, accumulator and oil feeding reservoir accessed into oil circuit, make proportional velocity regulating valve standard-sized sheet；
S2, change single-acting single-rod cylinder reciprocating motion of the pistons rule, change displacement hydraulic motor discharge capacity V and spindle machine torque
T, makes wave power generation hydraulic PTO system be run under a certain operating mode, at a time reduces the aperture prison of proportional velocity regulating valve suddenly
Examining system working flow Q, system working pressure p, rotating speed n, the spillway discharge q of wave power generation hydraulic PTO system0With accumulator hydraulic fluid port
Oil pressure p0Change with time；
S3, according to system workflow amount Q, system working pressure p and rotating speed n, research proportional velocity regulating valve closing process is steady to system
Qualitatively influence；According to accumulator hydraulic fluid port oil pressure p0, system working pressure p and system workflow amount Q, study proportional velocity regulating valve work
Pressure flow characteristics auto when making；According to accumulator hydraulic fluid port oil pressure p0With the spillway discharge q of wave power generation hydraulic PTO system0, study ripple
Pressure flow characteristics auto during the overflow valve work of power power hydraulic PTO system.
9. wave power generation hydraulic PTO system experimental method as claimed in claim 5, it is characterised in that：Carry out change displacement hydraulic
During motor energy characteristic test, including step：
S1, swivel tee valve, only will become displacement hydraulic motor entrance point flow sensor access oil circuit, opening stop valve, general
Accumulator and oil feeding reservoir input, make proportional velocity regulating valve standard-sized sheet；
S2, change single-acting single-rod cylinder reciprocating motion of the pistons rule, change displacement hydraulic motor discharge capacity V and spindle machine torque
T, makes wave power generation hydraulic PTO system be run under a certain operating mode, measures system workflow amount Q, the system work of the operating point
Pressure p, rotating speed n, computing system internal hydraulic pressure power PhWith output mechanical power Po, calculate hydraulic motor efficiency etam, hydraulic motor
Efficiency etam=output mechanical power Po/ internal system hydraulic power Ph；
S3, repeat S2, by each operating point to change displacement hydraulic motor discharge capacity V, spindle machine torque T and measurement and calculate
System workflow amount Q, system working pressure p, rotating speed n, internal system hydraulic power Ph, output mechanical power PoWith hydraulic pressure horse
Up to efficiency etamForm is made.
10. wave power generation hydraulic PTO system experimental method as claimed in claim 5, it is characterised in that：Carry out hydraulic cylinder energy
During characteristic test, including step：
S1, swivel tee valve, only will become displacement hydraulic motor entrance point flow sensor access oil circuit, opening stop valve, general
Accumulator and oil feeding reservoir access oil circuit, make flow speed control valve standard-sized sheet；
S2, the torque for changing single-acting single-rod cylinder reciprocating motion of the pistons rule, becoming displacement hydraulic motor discharge capacity V and dynamometer
T, makes wave power generation hydraulic PTO system be run under a certain operating mode, measures system workflow amount Q, the system work of the operating point
Make pressure p, rotating speed n, computing system internal hydraulic pressure power PhWith input mechanical output Pi, calculate hydraulic cylinder efficiency etac, hydraulic cylinder effect
Rate ηc=internal system hydraulic power Ph/ input mechanical output Pi；
S3, repeat S2, by each operating point to change displacement hydraulic motor discharge capacity V, spindle machine torque T and measurement and calculate
System workflow amount Q, system working pressure p, rotating speed n, internal system hydraulic power Ph, input mechanical output PiAnd hydraulic cylinder
Efficiency etacForm is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710511207.9A CN107165771B (en) | 2017-06-28 | 2017-06-28 | Comprehensive experiment platform and experiment method for wave power generation hydraulic PTO system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710511207.9A CN107165771B (en) | 2017-06-28 | 2017-06-28 | Comprehensive experiment platform and experiment method for wave power generation hydraulic PTO system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107165771A true CN107165771A (en) | 2017-09-15 |
| CN107165771B CN107165771B (en) | 2020-06-19 |
Family
ID=59827716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710511207.9A Active CN107165771B (en) | 2017-06-28 | 2017-06-28 | Comprehensive experiment platform and experiment method for wave power generation hydraulic PTO system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107165771B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108806429A (en) * | 2018-06-08 | 2018-11-13 | 天津大学 | Complete electrical wave-energy power generation experimental system |
| CN109989871A (en) * | 2019-04-08 | 2019-07-09 | 浙江大学 | Array wave-energy power generation hydraulic circuit based on the control of multi-chamber hydraulic cylinder continuous phase |
| CN111828234A (en) * | 2020-07-13 | 2020-10-27 | 北京瑞盈同创智能技术研究院有限公司 | Wave energy power generation equipment control method and device and wave energy power generation system |
| CN112014065A (en) * | 2020-08-14 | 2020-12-01 | 合肥工业大学 | Wave energy conversion semi-physical simulation test bed |
| US11722668B2 (en) | 2018-12-04 | 2023-08-08 | Huawei Technologies Co., Ltd. | Video encoder, video decoder, and corresponding method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101737240A (en) * | 2010-03-03 | 2010-06-16 | 天津大学 | Float type seawave power generation device |
| CN103925148A (en) * | 2014-04-30 | 2014-07-16 | 武汉大学 | Hydraulic transmission system for change load deviating-regulation wave power generation |
| CN104458316A (en) * | 2014-12-31 | 2015-03-25 | 武汉大学 | Overall physical model test platform for transient process of hydropower station |
| JP2016037956A (en) * | 2014-08-11 | 2016-03-22 | 渡部 富治 | Low cost pendulum type wave power generation device |
| CN105863940A (en) * | 2016-05-17 | 2016-08-17 | 中国海洋大学 | Combined wave power generation device provided with oscillating buoys as well as measurement and control system and method of device |
-
2017
- 2017-06-28 CN CN201710511207.9A patent/CN107165771B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101737240A (en) * | 2010-03-03 | 2010-06-16 | 天津大学 | Float type seawave power generation device |
| CN103925148A (en) * | 2014-04-30 | 2014-07-16 | 武汉大学 | Hydraulic transmission system for change load deviating-regulation wave power generation |
| JP2016037956A (en) * | 2014-08-11 | 2016-03-22 | 渡部 富治 | Low cost pendulum type wave power generation device |
| CN104458316A (en) * | 2014-12-31 | 2015-03-25 | 武汉大学 | Overall physical model test platform for transient process of hydropower station |
| CN105863940A (en) * | 2016-05-17 | 2016-08-17 | 中国海洋大学 | Combined wave power generation device provided with oscillating buoys as well as measurement and control system and method of device |
Non-Patent Citations (1)
| Title |
|---|
| 陈启卷等: "基于液压转换的共振波力发电装置提能系统", 《电力系统自动化》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108806429A (en) * | 2018-06-08 | 2018-11-13 | 天津大学 | Complete electrical wave-energy power generation experimental system |
| US11722668B2 (en) | 2018-12-04 | 2023-08-08 | Huawei Technologies Co., Ltd. | Video encoder, video decoder, and corresponding method |
| CN109989871A (en) * | 2019-04-08 | 2019-07-09 | 浙江大学 | Array wave-energy power generation hydraulic circuit based on the control of multi-chamber hydraulic cylinder continuous phase |
| CN111828234A (en) * | 2020-07-13 | 2020-10-27 | 北京瑞盈同创智能技术研究院有限公司 | Wave energy power generation equipment control method and device and wave energy power generation system |
| CN111828234B (en) * | 2020-07-13 | 2022-05-20 | 北京瑞盈同创智能技术研究院有限公司 | Wave energy power generation equipment control method and device and wave energy power generation system |
| CN112014065A (en) * | 2020-08-14 | 2020-12-01 | 合肥工业大学 | Wave energy conversion semi-physical simulation test bed |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107165771B (en) | 2020-06-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107165771A (en) | Wave power generation hydraulic PTO system synthesis experiment platform and its experimental method | |
| CN105697353B (en) | A kind of variable working condition Hydraulic pump fault simulation and state-detection combined test apparatus | |
| CN102221514B (en) | Joint testing device and method of rheological property of polymer solution and relative permeability of core | |
| CN103471829B (en) | A kind of test stand of multi-way valve of hydraulic excavator | |
| CN106015139B (en) | The tensile and compression testing machine hydraulic loading system of adoption rate overflow valve Differential Control | |
| CN112377487A (en) | Hydraulic comprehensive test platform | |
| CN106762890A (en) | A kind of test bed hydraulic control system of multifunction hydraulic | |
| CN104535337B (en) | Hydraulic hybrid vehicle simulation test bed | |
| CN107328897A (en) | A kind of slip casting plugging tester and method for simulating karst water burst | |
| WO2018041257A1 (en) | Hydraulic system of device for testing comprehensive performance of high-pressure gear flowmeter and testing method | |
| CN107159964B (en) | Horizontal internal broaching machine intelligence broaching unit | |
| CN104481971B (en) | Torque-type hydraulic pump and hydraulic motor power recovery test platform | |
| CN104196827A (en) | Efficiency test bed of electric-hydraulic proportional pump control motor system | |
| CN106644892A (en) | Loadable permeability test device | |
| CN106989004A (en) | A kind of electro-hydraulic pump diagnostic system and method | |
| CN104895871A (en) | Comprehensive and energy-saving testing device and method for reliability of electromagnetic valves and hydraulic cylinders | |
| CN109058234A (en) | A kind of electric proportional control valve compensation excavator hydraulic system Performance Test System and detection method | |
| CN1804576A (en) | Oil elastic modulus detector based on volume elastic modulus definition | |
| CN107975365A (en) | Simulate the experimental provision and experimental method of gas condensate reservoir straight well | |
| CN205135971U (en) | A device for miniature pump testing | |
| CN206409467U (en) | A kind of hydraulic system for being used to test hydraulic motor | |
| CN1180233C (en) | Hydraulic energy source equipment | |
| CN102635597A (en) | Health management system and method of engineering machinery hydraulic system | |
| CN207894596U (en) | A kind of Reservoir Charge-Up valve reliability test system | |
| CN102607843B (en) | Improved hydraulic oil circuit structure for marine gearbox test bench and operating method for improved hydraulic oil circuit structure |
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 |