CN103472325B - The detection platform of a kind of wave energy and marine tidal-current energy stand alone generating system - Google Patents
The detection platform of a kind of wave energy and marine tidal-current energy stand alone generating system Download PDFInfo
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Abstract
The present invention relates to the detection platform of a kind of wave energy, marine tidal-current energy stand alone generating system, be the equipment of a set of 380V/500kW, comprise electric energy quality monitoring module, load regulation module and short circuit analog module.Wave energy, tidal current energy generating system connect load regulation module and carry out load test, or connection short circuit analog module carries out short circuit experiment.Electric energy quality monitoring module comprises background computer, controller and quality of power supply on-line computing model, is all installed in monitoring cabinet, can complete human-computer exchange, Data Detection, load regulation order issue, short circuit simulation command issues and electric energy quality monitoring.The ladder being realized load by the various combination of adjustment load regulation module load branch is regulated, and detects inverter dynamic output characteristics according to load change.Short circuit analog module is short circuit cabinet, can simulate the various fault of single-phase earthing, phase fault, symmetrical short-circuit and unsymmetrical short-circuit.This detection platform can the complete test item of complete independently, has removable, that accuracy is high, real-time is good feature.
Description
Technical field
The present invention relates to the detection platform of power generation with marine energy technical field, be specifically related to the detection platform of a kind of wave energy and marine tidal-current energy stand alone generating system.
Background technology
Along with world energy sources day is becoming tight, ocean energy, as a kind of green regenerative energy sources, is subject to the most attention of coastal countries.China's ocean energy starting comparatively early, and obtains showing great attention to of party and state leaders in recent years.The developed countries such as America and Europe have built the ocean power plants such as some dissimilar wave energies, marine tidal-current energy, enter the operation phase.Although China technically develops comparatively early in power generation with marine energy and differs with world level without many, but owing to lacking coherent detection means, and not yet arrive the reasons such as large-scale application stage, the equipment manufacture relevant to power generation with marine energy technology is not yet formed at present, except small-sized ocean energy device, the ocean power generating device substantially do not produced in batches.
The real sea situation tests and analysis of ocean energy isolated power system is that ocean energy device moves towards the key link of scale industrialization application from engineering prototype.Therefore, the detection platform of wave energy and marine tidal-current energy isolated power system is a key technology and equipment be badly in need of.
Summary of the invention
For the deficiencies in the prior art; the object of this invention is to provide the detection platform of a kind of wave energy and marine tidal-current energy stand alone generating system; this detection platform both can have been carried out equipment and to have been exerted oneself the main performance such as quality, the quality of power supply; also can detect the Control protection system performance of equipment; can the complete test item of complete independently stand alone generating system; testing result has real-time, accuracy and calculates the advantages such as easy, can play good wave energy, the effect of ocean energy stand alone generating system Site Detection.
The object of the invention is to adopt following technical proposals to realize:
The invention provides the detection platform of a kind of wave energy and marine tidal-current energy stand alone generating system, its improvements are, described detection platform comprises the electric energy quality monitoring module connected successively, load regulation module and short circuit analog module; The electric energy quality monitoring module of described detection platform is connected with wave energy and tidal current energy generating system.
Further, described electric energy quality monitoring module comprises the background computer, controller and the quality of power supply on-line computing model that connect successively;
Described background computer, controller and quality of power supply on-line computing model are all installed in monitoring cabinet;
Described electric energy quality monitoring module has been used for human-computer exchange, Data Detection, load regulation order issue, short circuit simulation command issues and electric energy quality monitoring.
Further, wave energy is connected with described controller with tidal current energy generating system.
Further, described electric energy quality monitoring comprises generator quality monitoring, quality of power supply quality monitoring, and power adjustments and fault simulation detect.
Further, described load regulation module is the controllable load of resistor group, Reactor banks, Capacitor banks and thyristor controlled series compensation combination; The ladder that described load regulation module realizes load by the various combination adjusting load branch regulates, and detects the dynamic output characteristics of wave energy and tidal current energy generating system inverter according to the change of load.
Further, described resistor group, Reactor banks, Capacitor banks and thyristor valve are all connected on ac bus; Resistance in described resistor group is installed in resistor box, and the reactor in described Reactor banks is installed in reactance cabinet, and the electric capacity in described Capacitor banks is installed in capacitor box; Described thyristor valve is installed in valve group cabinet;
Described controllable load carries out switching by thyristor, response time 20ms.
Further, described resistor group is made up of resistance-isolating switch branch road and the resistance of at least one-thyristor valve branch circuit parallel connection, described resistance-isolating switch branch road and resistance-equal ground connection of thyristor valve branch road;
Described resistance-isolating switch branch road comprises isolating switch and the resistance of series connection; Described resistance-thyristor valve branch road comprises resistance and the thyristor valve of series connection; Described thyristor valve is made up of antiparallel thyristor.
Further, described Reactor banks is made up of reactor-thyristor valve branch circuit parallel connection; Described reactor-thyristor valve branch road comprises reactor and the thyristor valve of series connection; Described thyristor valve is made up of antiparallel thyristor; Described reactor-thyristor valve grounding.
Further, described Capacitor banks is made up of capacitor-thyristor valve branch circuit parallel connection; Described capacitor-thyristor valve branch road comprises capacitor and the thyristor valve of series connection; Described thyristor valve is made up of antiparallel thyristor; Described capacitor-thyristor valve grounding.
Further, described short circuit analog module adopts short circuit cabinet to realize, and comprises the single-phase short circuit switch be arranged on ac bus, two-way short circuiting switch and three-phase shortcircuit switch; Described short circuit analog module is for simulating singlephase earth fault, phase fault, symmetrical short-circuit fault and asymmetry short circuit fault.
Further, described ac bus and single-phase short circuit switch, two-way short circuiting switch and three-phase shortcircuit switch are installed in incoming line cabinet, and incoming line cabinet, monitoring cabinet, controllable load and short circuit cabinet are all installed in moving containers; Described moving containers is connected with mobile device, and moving containers comprises left and right each three sides and opens the door and a back pullout (BPO).
Further, described wave energy and tidal current energy generating system comprise the genset, rectification circuit, energy-storage travelling wave tube and the inverter that are connected successively; Described genset exports direct current through rectification circuit, by energy-storage travelling wave tube energy storage, then is reverse into three-phase alternating current by inverter, then connects controllable load and carries out load test, or connection short circuit analog module carries out short circuit experiment.
The present invention is based on the equipment of a kind of 380V/500kW that another object provides, its improvements are, described equipment is detection platform according to claim 1.
Compared with the prior art, the beneficial effect that the present invention reaches is:
The present invention is directed to the requirement of wave energy, the real sea situation test of ocean energy stand alone generating system; devise portable detection platform; can complete the functions such as Quality Detection of exerting oneself, electric energy quality monitoring and relay testing, the complete and reliable and stable work of function, operation and maintenance is convenient.This system both can have been carried out equipment and to have been exerted oneself the main performance such as quality, the quality of power supply, also can detect the control and protection system performance of equipment, can the complete test item of complete independently stand alone generating system, testing result has real-time, accuracy and calculates the advantages such as easy, can play good wave energy, the effect of ocean energy stand alone generating system Site Detection.
Accompanying drawing explanation
Fig. 1 is the detection platform structural drawing of wave energy provided by the invention and marine tidal-current energy stand alone generating system;
Fig. 2 is controllable load frame diagram provided by the invention;
Fig. 3 is electric energy quality monitoring modular structure block diagram provided by the invention;
Fig. 4 is electric energy quality monitoring module performance detection technique route map provided by the invention;
Fig. 5 is the detection platform entity structure diagram of wave energy provided by the invention and marine tidal-current energy stand alone generating system.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
The detection platform structural drawing of wave energy provided by the invention and marine tidal-current energy stand alone generating system as shown in Figure 1, this detection platform is the equipment of a set of 380V/500kW, comprise the electric energy quality monitoring module connected successively, load regulation module and the large module of short circuit analog module three; The electric energy quality monitoring module of described detection platform is connected with wave energy and tidal current energy generating system.
Wave energy and tidal current energy generating system comprise the genset, rectification circuit, energy-storage travelling wave tube and the inverter that are connected successively; Wave energy, marine tidal-current energy generator group export direct current through rectification circuit, by energy-storage travelling wave tube energy storage, then are reverse into three-phase alternating current through inverter, then connect controllable load and carry out load test, or connection short circuit analog module carries out short circuit experiment.In Fig. 1, A point is vdct point, and B point is alternating voltage test point and electric energy quality monitoring point.
One, electric energy quality monitoring module:
Electric energy quality monitoring module comprises the background computer, controller and the quality of power supply on-line computing model that connect successively, all be installed in monitoring cabinet, human-computer exchange, Data Detection can be completed, load regulation order issues, short circuit simulation command issues, electric energy quality monitoring, is the core of detection platform.Wave energy is connected with described controller with tidal current energy generating system.Electric energy quality monitoring modular structure block diagram provided by the invention as shown in Figure 3.
Electric energy quality monitoring comprises:
Generator quality monitoring: the undulatory property of exerting oneself for wave energy and marine tidal-current energy stand alone generating system and intermittence, design stand alone generating system is exerted oneself Quality Detection platform.Detection system obtains DC voltage and the DC current of each Blast Furnace Top Gas Recovery Turbine Unit (TRT), and then exerting oneself in real time of obtaining that each Blast Furnace Top Gas Recovery Turbine Unit (TRT) and whole stand alone generating system export respectively.
Quality of power supply quality monitoring: for ensureing the quality of power supply that stand alone generating system provides for load, design stand alone generating system Power Quality Detection platform.By choosing high-precision electric energy quality on-line monitoring device, complete the parameter such as harmonic wave, voltage deviation, voltage fluctuation and flicker, Voltage unbalance, frequency departure, power factor of system output voltage and electric current is detected, record analysis.
Power adjustments and fault simulation detect: for ensureing that Blast Furnace Top Gas Recovery Turbine Unit (TRT) can starting protection function quickly and accurately when the system failure, design stand alone generating system protection system detection platform.This detection platform can simulate the various faults such as single-phase earthing, phase fault, symmetrical short-circuit and unsymmetrical short-circuit, realizes the detection of the protective value to stand alone generating system.Electric energy quality monitoring module performance detection technique route map provided by the invention as shown in Figure 4.
Two, load regulation module:
Load regulation module is the controllable load of resistor group, Reactor banks, Capacitor banks and thyristor controlled series compensation combination; The ladder that described load regulation module realizes load by the various combination adjusting load branch regulates, and detects the dynamic output characteristics of wave energy and tidal current energy generating system inverter according to the change of load.Controllable load frame diagram provided by the invention as shown in Figure 2.
Resistor group, Reactor banks, Capacitor banks and thyristor valve are all connected on ac bus; Resistance in described resistor group is installed in resistor box, and the reactor in described Reactor banks is installed in reactance cabinet, and the electric capacity in described Capacitor banks is installed in capacitor box; Described thyristor valve is installed in valve group cabinet;
Controllable load carries out switching by thyristor, response time 20ms.
Resistor group is made up of resistance-isolating switch branch road and the resistance of at least one-thyristor valve branch circuit parallel connection, described resistance-isolating switch branch road and resistance-equal ground connection of thyristor valve branch road; Described resistance-isolating switch branch road comprises isolating switch and the resistance of series connection; Described resistance-thyristor valve branch road comprises resistance and the thyristor valve of series connection; Described thyristor valve is made up of antiparallel thyristor.
Reactor banks is made up of reactor-thyristor valve branch circuit parallel connection; Described reactor-thyristor valve branch road comprises reactor and the thyristor valve of series connection; Described thyristor valve is made up of antiparallel thyristor; Described reactor-thyristor valve grounding.
Capacitor banks is made up of capacitor-thyristor valve branch circuit parallel connection; Described capacitor-thyristor valve branch road comprises capacitor and the thyristor valve of series connection; Described thyristor valve is made up of antiparallel thyristor; Described capacitor-thyristor valve grounding.
Load regulation modular design
(1) parameter calculates:
Generator rating power is P
gN, applied power S
gN, power factor is
, then generator reactive power exports
(2) device parameter:
Resistance parameter: resistance is for consuming the active power of generator, and therefore resistance institute is consumable maximumly gains merit for P
gN, resistance branch capacity is according to 8421 encoding settings, and can ensure that step-length is less when resistance classification is less, is divided into 16 grades, step-length is 6.25%.Be divided into 5 branch roads, then its resistance capacity is respectively P
r1=P
gN/ 16, P
r2=P
gN/ 16, P
r3=P
gN/ 8, P
r4=P
gN/ 4, P
r5=P
gN/ 2.
Inductance parameters: it is idle that inductance is used for the perception of consumption systems, institute consumable maximum idle be 331kvar, inductive branch capacity, according to 8421 encoding settings, is divided into 4 branch roads, 15 grades, and step-length is 6.6%, then the capacity of 4 inductive branches is respectively Q
l1=Q
gN/ 15, Q
l2=2Q
gN/ 15, Q
l3=4Q
gN/ 15, Q
l4=8Q
gN/ 15.
Capacitance parameter: electric capacity is used for the capacitive reactive power in consumption systems, institute consumable maximum idle be 331kvar, capacitive branch capacity, according to 8421 encoding settings, is divided into 4 branch roads, 15 grades, and step-length is 6.6%, then the capacity of 4 capacitive branch is respectively Q
c1=Q
gN/ 15, Q
c2=2Q
gN/ 15, Q
c3=4Q
gN/ 15, Q
c4=8Q
gN/ 15.
Three, short circuit analog module:
Short circuit analog module is short circuit cabinet, comprises the single-phase short circuit switch be arranged on ac bus, two-way short circuiting switch and three-phase shortcircuit switch; The various faults such as single-phase earthing, phase fault, symmetrical short-circuit and unsymmetrical short-circuit can be simulated.Short circuit analog module need 3 380V three-phase breakers, as shown in Figure 1, close QS1 time, simulation singlephase earth fault; Close QS2, and simulation two-phase short-circuit fault, the QS3 that closes simulates three phase short circuit fault.
Generator outlet rated voltage is U
gN=0.4kV, active power is P
n=500kW, generator is considered to inverter section by overall, and generator to the equivalent short circuit impedance at inverter place can be similar to thinks 0.0051+j0.157 Ω.Consider in extreme circumstances when calculating short-circuit current, namely do not consider energy storage device energy storage, generator is exerted oneself under nominal power, all supplies short dot, then have
When there is three-phase shortcircuit near B point, its initial value is
In formula: K
g-generator impedance correction factor, expression formula is as follows:
State ac bus and single-phase short circuit switch, two-way short circuiting switch and three-phase shortcircuit switch are installed in incoming line cabinet, incoming line cabinet, monitoring cabinet, controllable load and short circuit cabinet are all installed in moving containers; Described moving containers is connected with mobile device, and moving containers comprises left and right each three sides and opens the door and a back pullout (BPO).Wave energy and tidal current energy generating system comprise the genset, rectification circuit, energy-storage travelling wave tube and the inverter that are connected successively; Described genset exports direct current through rectification circuit, by energy-storage travelling wave tube energy storage, then is reverse into three-phase alternating current by inverter, then connects controllable load and carries out load test, or connection short circuit analog module carries out short circuit experiment.The detection platform entity structure diagram of wave energy provided by the invention and marine tidal-current energy stand alone generating system as shown in Figure 5.
Detection platform provided by the invention, in order to detect the main performance of wave energy, marine tidal-current energy stand alone generating system, mainly comprises:
1) generated output quality is detected:
The undulatory property of exerting oneself for electricity generation system with intermittent detection platform by exchanging, the test of DC quantity, calculating, detect the important indicator such as the exerting oneself of generating set, efficiency, DC component.
2) quality of power supply is detected:
By choosing high-precision electric energy quality on-line monitoring device, realize detecting the parameter such as harmonic wave, voltage deviation, voltage fluctuation and flicker, Voltage unbalance, frequency departure, power factor of system output voltage and electric current, record analysis.
3) monitoring system is detected:
This protecting platform can simulate the various faults such as single-phase earthing, phase fault, symmetrical short-circuit and unsymmetrical short-circuit, realizes the detection of the protective value to stand alone generating system.
Whole Equipment device for detecting performance and Control protection system device for detecting performance constitute stand alone generating system detection platform of the present invention.According to national interconnection technology standard, Whole Equipment pick-up unit can meet the needs of the tests such as systems generate electricity efficiency, power supply quality, protective value.Apparatus control system just can carry out mutual communication with replicating machine by various interface plate and optical fiber, and device practical operation situation can show in the man-machine interface of control system.Replicating machine is built the model of electrical network and load, can simulate actual electric network produce various typical condition or, detect the main performance of grid-connection device Control protection system.Meanwhile, replicating machine part is expanded and can be detected the Control protection system performance of high-power equipment.This detection platform can the complete test item of complete independently, and has the features such as removable, accuracy is high, real-time is good.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although with reference to above-described embodiment to invention has been detailed description, those of ordinary skill in the field are to be understood that: still can modify to the specific embodiment of the present invention or equivalent replacement, and not departing from any amendment of spirit and scope of the invention or equivalent replacement, it all should be encompassed in the middle of right of the present invention.
Claims (2)
1. a detection platform for wave energy and marine tidal-current energy stand alone generating system, is characterized in that, described detection platform comprises the electric energy quality monitoring module connected successively, load regulation module and short circuit analog module; The electric energy quality monitoring module of described detection platform is connected with wave energy and tidal current energy generating system;
Described electric energy quality monitoring module comprises the background computer, controller and the quality of power supply on-line computing model that connect successively;
Described background computer, controller and quality of power supply on-line computing model are all installed in monitoring cabinet;
Described electric energy quality monitoring module has been used for human-computer exchange, Data Detection, load regulation order issue, short circuit simulation command issues and electric energy quality monitoring;
Wave energy is connected with described controller with tidal current energy generating system;
Described electric energy quality monitoring comprises generator quality monitoring, quality of power supply quality monitoring, and power adjustments and fault simulation detect;
Described load regulation module is the controllable load of resistor group, Reactor banks, Capacitor banks and thyristor controlled series compensation combination; The ladder that described load regulation module realizes load by the various combination adjusting load branch regulates, and detects the dynamic output characteristics of wave energy and tidal current energy generating system inverter according to the change of load;
Described resistor group, Reactor banks, Capacitor banks and thyristor valve are all connected on ac bus; Resistance in described resistor group is installed in resistor box, and the reactor in described Reactor banks is installed in reactance cabinet, and the electric capacity in described Capacitor banks is installed in capacitor box; Described thyristor valve is installed in valve group cabinet;
Described controllable load carries out switching by thyristor, response time 20ms;
Described resistor group is made up of resistance-isolating switch branch road and the resistance of at least one-thyristor valve branch circuit parallel connection, described resistance-isolating switch branch road and resistance-equal ground connection of thyristor valve branch road;
Described resistance-isolating switch branch road comprises isolating switch and the resistance of series connection; Described resistance-thyristor valve branch road comprises resistance and the thyristor valve of series connection; Described thyristor valve is made up of antiparallel thyristor;
Described Reactor banks is made up of reactor-thyristor valve branch circuit parallel connection; Described reactor-thyristor valve branch road comprises reactor and the thyristor valve of series connection; Described thyristor valve is made up of antiparallel thyristor; Described reactor-thyristor valve grounding;
Described Capacitor banks is made up of capacitor-thyristor valve branch circuit parallel connection; Described capacitor-thyristor valve branch road comprises capacitor and the thyristor valve of series connection; Described thyristor valve is made up of antiparallel thyristor; Described capacitor-thyristor valve grounding;
Described short circuit analog module adopts short circuit cabinet to realize, and comprises the single-phase short circuit switch be arranged on ac bus, two-way short circuiting switch and three-phase shortcircuit switch; Described short circuit analog module is for simulating singlephase earth fault, phase fault, symmetrical short-circuit fault and asymmetry short circuit fault;
Described ac bus and single-phase short circuit switch, two-way short circuiting switch and three-phase shortcircuit switch are installed in incoming line cabinet, and incoming line cabinet, monitoring cabinet, controllable load and short circuit cabinet are all installed in moving containers;
Described wave energy and tidal current energy generating system comprise the genset, rectification circuit, energy-storage travelling wave tube and the inverter that are connected successively; Described genset exports direct current through rectification circuit, by energy-storage travelling wave tube energy storage, then is reverse into three-phase alternating current by inverter, then connects controllable load and carries out load test, or connection short circuit analog module carries out short circuit experiment.
2. an equipment of 380V/500kW, is characterized in that, described equipment is detection platform according to claim 1.
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| US11852687B2 (en) * | 2021-09-20 | 2023-12-26 | Shelby Kenneth Campbell Tyne | Apparatus and associated methods for load bank and power generator control |
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| CN104215849B (en) * | 2014-09-02 | 2017-08-08 | 山东中车风电有限公司 | A kind of tidal current energy generating equipment analog testing platform and method of testing |
| CN105182104B (en) * | 2015-07-24 | 2017-12-08 | 中国海洋石油总公司 | A kind of wave energy marine tidal-current energy comprehensive test platform and working condition simulation method |
| CN105242208B (en) * | 2015-10-27 | 2018-07-27 | 国家海洋技术中心 | A kind of marine tidal-current energy power generation indoor simulation test device |
| CN108508348B (en) * | 2018-03-16 | 2023-11-03 | 广东省特种设备检测研究院珠海检测院 | Device and method for detecting ground fault protection function of control circuit |
| CN109359327B (en) * | 2018-09-01 | 2021-02-19 | 国网山东省电力公司寿光市供电公司 | Multi-purpose intelligent power distribution network simulation system and simulation method |
| CN112230094B (en) * | 2020-11-11 | 2022-11-29 | 广东电网有限责任公司 | Teaching device for simulating power quality |
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