CN202916095U - Device simulating wind electricity hydraulic pitch system operation environment - Google Patents
Device simulating wind electricity hydraulic pitch system operation environment Download PDFInfo
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- CN202916095U CN202916095U CN 201220473970 CN201220473970U CN202916095U CN 202916095 U CN202916095 U CN 202916095U CN 201220473970 CN201220473970 CN 201220473970 CN 201220473970 U CN201220473970 U CN 201220473970U CN 202916095 U CN202916095 U CN 202916095U
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Abstract
The utility model discloses a device simulating a wind electricity hydraulic pitch system operation environment, which belongs to the field of the design of a renewable energy device operation simulation device. According to the technical proposal, the device comprises a hydraulic pitch system, a hydraulic load output system, a data acquisition and command output module and a computer; the hydraulic pitch system comprises a first hydraulic source, a first proportional valve, a first hydraulic cylinder, an oil tank, a piston position sensor, a first pressure sensor, a second pressure sensor, a first flow sensor and a second flow sensor; and the hydraulic load output system comprises a second hydraulic source, a second proportional valve, a second hydraulic cylinder and a force sensor. According to the utility model, the device simulating the wind electricity hydraulic pitch system operation environment is designed to compare the feature states of the hydraulic pitch system in normal operation and fault operation, thus a convenient and effective way is provided for the exploration of common features of operation and fault of an actual wind electricity hydraulic pitch system and fault diagnosis.
Description
Technical field
The utility model belongs to renewable energy source device operation emulator design field, relates in particular to a kind of device of simulating wind-powered electricity generation hydraulic variable propeller system running environment.
Background technology
Wind-power electricity generation is the renewable energy power generation form of current on the largest scaleization business development condition.In recent years, China's wind-power electricity generation installed capacity rapid development.Catch for wind energy, the aspects such as generator stall and aerodynamic force brake, the blade pitch device of blade is extremely important.In the high wind situation, can the be against any misfortune generation of incidents of the operation maintenance of hydraulic system and failure monitoring.Therefore, the maintenance of hydraulic system and fault are got rid of economy, reliability and the security that affects wind-power electricity generation greatly, are subject to the great attention of domestic and international manufacturer and unit of operation.
The fault diagnosis of hydraulic system is mainly based on monitoring and the analytical technology of system running state.During the equipment operation, its flow, pressure, displacement signal comprise abundant running state information.When system broke down, above-mentioned signal can change, and just may find and identify fault by the monitoring analysis signal, thereby find as early as possible and identify fault, carry out accurate localization of fault, and provide fault progression trend, for the Rational Maintenance maintenance provides technical support.
The key issue of the fault diagnosis of hydraulic system comprises fault signature extraction and analysis, two aspects of fault mode classification identification.Early stage hydraulic system fault analysis and fault signature extract the main classical signals analytical approach that adopts, mechanism of production according to fault-signal in system's operational process, utilize time domain average technology, spectrum analysis and demodulation techniques etc. to extract the characteristic information of the reflection system failure, and the characteristic information when normally moving with system compares, thereby finds fault.Along with the development of signal analysis technology, new method for diagnosing faults continues to bring out, and then has widened the engineering range of application of signal analysis.These new methods are verified rapidly in operational monitoring and the fault diagnosis field of hydraulic system, so that the research in this field deepens constantly.The new method that is applied at present hydraulic fault diagnosis aspect mainly comprises Kalman filter, neural network and adaptive analysis method.Fault can be found and quantize to these methods.
Compare with other industrial hydraulic systems, wind-powered electricity generation unit hydraulic system has following characteristics:
1) operating rate and the output torque load that change.
2) become and unsettled load (being caused by fitful wind) time.
Because wind energy turbine set is in the bleak and desolate regions such as seabeach, Gobi desert usually, physical environment is abominable, and hydraulic system is installed in the high-altitude, swings with cabin and pylon, thereby on-line real time monitoring gear case vibrational state is formed larger interference, and then affect the fault signature Accuracy of Judgement.Therefore, except the signal of steady state (SS), the Fault Diagnosis Methods for Hydraulic System of wind-powered electricity generation unit also needs normal operation under the condition of transient state and non-steady state signal.
Summary of the invention
The utility model at present to the hydraulic system in the wind energy turbine set, the problem that aspect Real-Time Monitoring and fault judgement, exists, the utility model provides a kind of device of simulating wind-powered electricity generation hydraulic variable propeller system running environment.
Its technical scheme is, a kind of device of simulating wind-powered electricity generation hydraulic variable propeller system running environment is characterized in that, described device comprises hydraulic variable propeller system, hydraulic load output system, data acquisition and instruction output module and computing machine; Described hydraulic variable propeller system comprises the first hydraulic power source, the first proportioning valve, the first hydraulic cylinder, fuel tank, piston position sensor, the first pressure transducer, the second pressure transducer, first flow sensor and second quantity sensor; Described hydraulic load output system comprises the second hydraulic power source, the second proportioning valve, the second hydraulic cylinder and power sensor;
Wherein, on the piston of described the first hydraulic cylinder piston position sensor is installed;
The oil-feed of described the first hydraulic cylinder and go out on the oil return line in parallel with the first pressure transducer and the second pressure transducer respectively;
The oil-feed of described the first hydraulic cylinder and going out on the oil return line is connected with first flow sensor and second quantity sensor respectively;
The piston of the first hydraulic cylinder is connected by the power sensor with the piston of the second hydraulic cylinder;
Described piston position sensor, the first pressure transducer, the second pressure transducer, first flow sensor, second quantity sensor and power sensor are connected respectively and are connected with described data acquisition and instruction output module;
Described data acquisition and instruction output module is connected with computing machine with described the first proportioning valve, the second proportioning valve respectively;
Described the first proportioning valve is connected with described the first hydraulic power source, first flow sensor and second quantity sensor respectively;
Described the second proportioning valve respectively with described the second hydraulic cylinder be connected hydraulic power source and be connected;
Described fuel tank is between the first proportioning valve and the second proportioning valve line;
Described computing machine is connected with described data acquisition and instruction output module.
Described hydraulic variable propeller system is by adding the failure condition of loop simulation system.
The beneficial effects of the utility model are, design a kind of device of simulating wind-powered electricity generation hydraulic variable propeller system running environment, the characteristics of simulation wind-powered electricity generation unit kinematic train speed change, variable load, and the eigenstate when carrying out the normal operation of hydraulic variable propeller system with failure operation relatively, for common feature and the fault diagnosis of seeking actual wind-powered electricity generation hydraulic variable propeller system operation and fault provides a kind of convenient effective approach.
Description of drawings
Fig. 1 is that a kind of structure of simulating the device of wind-powered electricity generation hydraulic variable propeller system running environment that the utility model provides forms synoptic diagram;
Fig. 2 is a kind of inside and outside leakage failure synoptic diagram of simulation oil cylinder of simulating the device of wind-powered electricity generation hydraulic variable propeller system running environment that the utility model embodiment provides;
Fig. 3 is a kind of workflow diagram that carries out pitch-controlled system fault test and analysis of simulating the device of wind-powered electricity generation hydraulic variable propeller system running environment that the utility model provides;
Wherein, 1-the first hydraulic power source; 2-the second hydraulic power source; The 3-fuel tank; 4-the first proportioning valve; 5-the second proportioning valve; 6-first flow sensor; 7-second quantity sensor; 8-the first pressure transducer; 9-the second pressure transducer; 10-the first hydraulic cylinder; 11-power sensor; 12-the second hydraulic cylinder; The 13-piston position sensor; 14-data acquisition and instruction output module; The 15-computing machine; 16-the first gate valve; 17-the 3rd flow sensor; 18-first throttle valve; 19-the second gate valve; 20-first throttle valve; 21-the 4th flow sensor; The 22-retaining valve.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment is elaborated.Should be emphasized that following explanation only is exemplary, rather than in order to limit scope of the present utility model and application thereof.
Fig. 1 is that a kind of structure of simulating the device of wind-powered electricity generation hydraulic variable propeller system running environment that the utility model provides forms synoptic diagram.Among Fig. 1, a kind of device of simulating wind-powered electricity generation hydraulic variable propeller system running environment comprises hydraulic variable propeller system, hydraulic load output system, data acquisition and instruction output module and computing machine; Described hydraulic variable propeller system comprises the first hydraulic power source, the first proportioning valve, the first hydraulic cylinder, fuel tank, piston position sensor, the first pressure transducer, the second pressure transducer, first flow sensor and second quantity sensor; Described hydraulic load output system comprises the second hydraulic power source, the second proportioning valve, the second hydraulic cylinder and power sensor; Described piston position sensor is installed on the piston of the first hydraulic cylinder; The oil-feed of described the first hydraulic cylinder and go out on the oil return line in parallel with the first pressure transducer and the second pressure transducer respectively; The oil-feed of described the first hydraulic cylinder and going out on the oil return line is connected with first flow sensor and second quantity sensor respectively; The piston of the first hydraulic cylinder is connected by the power sensor with the piston of the second hydraulic cylinder; Described piston position sensor, the first pressure transducer, the second pressure transducer, first flow sensor, second quantity sensor and power sensor are connected respectively and are connected with described data acquisition and instruction output module; Described data acquisition and instruction output module is connected with computing machine with described the first proportioning valve, the second proportioning valve respectively; Described the first proportioning valve is connected with described the first hydraulic power source, first flow sensor and second quantity sensor respectively; Described the second proportioning valve respectively with described the second hydraulic cylinder be connected hydraulic power source and be connected; Described fuel tank is between the first proportioning valve and the second proportioning valve line; Described computing machine is connected with described data acquisition and instruction output module.
Described piston position sensor, the first pressure transducer, the second pressure transducer, first flow sensor, second quantity sensor and power sensor are used for gathering real time data; Hydraulic power source is used for providing the hydraulic oil of constant rate and pressure; Fuel tank is used for the storage liquid force feed.Described computing machine is used for each sensing data that storage data acquisition and instruction output module collect, and steering order is outputed to data acquisition and instruction output module; Described data acquisition and instruction output module are used for sending the variation output that oil cylinder power in the first proportioning valve and the second proportioning valve realization hydraulic variable propeller system oil cylinder position and the load output system is controlled in instruction.
Fig. 2 is a kind of inside and outside leakage failure synoptic diagram of simulation oil cylinder of simulating the device of wind-powered electricity generation hydraulic variable propeller system running environment that the utility model embodiment provides.Among Fig. 2, can effectively simulate the malfunction of wind power pitch-controlled system by in pitch-controlled system, adding the loop, such as inside and outside leakage failure of oil cylinder.The loop that the outside leakage failure of oil cylinder adds is comprised of the second gate valve, first throttle valve, the 4th flow sensor and retaining valve; Loop one end is connected to the A end oil-in of the first hydraulic cylinder, and the other end is connected to fuel tank.The loop that the oil cylinder internal leakage fault adds is comprised of the first gate valve, the 3rd flow sensor and first throttle valve, and the loop is connected to oil-in A end and the oil-out B end of the first hydraulic cylinder.
Fig. 3 is a kind of workflow diagram that carries out pitch-controlled system fault test and analysis of simulating the device of wind-powered electricity generation hydraulic variable propeller system running environment that the utility model provides.Among Fig. 3, specifically may further comprise the steps:
Step 301: judge in hydraulic system processing whether become the slurry system breaks down;
Step 302: the various sensors of installing in the system carry out data acquisition, and the data that collect are sent to data acquisition and instruction output module;
Step 303: the data that data acquisition and instruction output module collect the sensor that receives carry out sending to computing machine after preposition amplification and the anti-aliasing filter processing;
Step 304: the data analysis of computing machine to receiving sends order simultaneously to the variation output of oil cylinder power in oil cylinder position and the load output system in data acquisition and the instruction output module control ratio valve realization hydraulic variable propeller system; And the characteristics of failure-free data and tape jam data relatively, sum up the feature of various faults, for the fault diagnosis of carrying out actual wind-powered electricity generation hydraulic variable propeller system provides reference.
The above; it only is the better embodiment of the utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.
Claims (2)
1. a device of simulating wind-powered electricity generation hydraulic variable propeller system running environment is characterized in that, described device comprises hydraulic variable propeller system, hydraulic load output system, data acquisition and instruction output module and computing machine; Described hydraulic variable propeller system comprises the first hydraulic power source, the first proportioning valve, the first hydraulic cylinder, fuel tank, piston position sensor, the first pressure transducer, the second pressure transducer, first flow sensor and second quantity sensor; Described hydraulic load output system comprises the second hydraulic power source, the second proportioning valve, the second hydraulic cylinder and power sensor;
Wherein, on the piston of described the first hydraulic cylinder piston position sensor is installed;
The oil-feed of described the first hydraulic cylinder and go out on the oil return line in parallel with the first pressure transducer and the second pressure transducer respectively;
The oil-feed of described the first hydraulic cylinder and going out on the oil return line is connected with first flow sensor and second quantity sensor respectively;
The piston of the first hydraulic cylinder is connected by the power sensor with the piston of the second hydraulic cylinder;
Described piston position sensor, the first pressure transducer, the second pressure transducer, first flow sensor, second quantity sensor and power sensor are connected respectively and are connected with described data acquisition and instruction output module;
Described data acquisition and instruction output module is connected with computing machine with described the first proportioning valve, the second proportioning valve respectively;
Described the first proportioning valve is connected with described the first hydraulic power source, first flow sensor and second quantity sensor respectively;
Described the second proportioning valve respectively with described the second hydraulic cylinder be connected hydraulic power source and be connected;
Described fuel tank is between the first proportioning valve and the second proportioning valve line;
Described computing machine is connected with described data acquisition and instruction output module.
2. a kind of device of simulating wind-powered electricity generation hydraulic variable propeller system running environment according to claim 1 is characterized in that, described hydraulic variable propeller system is by adding the failure condition of loop simulation system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220473970 CN202916095U (en) | 2012-09-17 | 2012-09-17 | Device simulating wind electricity hydraulic pitch system operation environment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220473970 CN202916095U (en) | 2012-09-17 | 2012-09-17 | Device simulating wind electricity hydraulic pitch system operation environment |
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| CN202916095U true CN202916095U (en) | 2013-05-01 |
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| CN 201220473970 Expired - Fee Related CN202916095U (en) | 2012-09-17 | 2012-09-17 | Device simulating wind electricity hydraulic pitch system operation environment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314755A (en) * | 2014-09-23 | 2015-01-28 | 华北电力大学 | IPSO (Immune Particle Swarm Optimization)-based DFIG (Doubly-fed Induction Generator) variable pitch LADRC (Linear Active Disturbance Rejection Control) method and system |
| CN109441724A (en) * | 2018-12-26 | 2019-03-08 | 北京金风科创风电设备有限公司 | Safety throttling device and method for hydraulic pitch control system and hydraulic pitch control system |
-
2012
- 2012-09-17 CN CN 201220473970 patent/CN202916095U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314755A (en) * | 2014-09-23 | 2015-01-28 | 华北电力大学 | IPSO (Immune Particle Swarm Optimization)-based DFIG (Doubly-fed Induction Generator) variable pitch LADRC (Linear Active Disturbance Rejection Control) method and system |
| CN104314755B (en) * | 2014-09-23 | 2017-02-01 | 华北电力大学 | IPSO (Immune Particle Swarm Optimization)-based DFIG (Doubly-fed Induction Generator) variable pitch LADRC (Linear Active Disturbance Rejection Control) method and system |
| CN109441724A (en) * | 2018-12-26 | 2019-03-08 | 北京金风科创风电设备有限公司 | Safety throttling device and method for hydraulic pitch control system and hydraulic pitch control system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130501 Termination date: 20130917 |