CN203479995U - Wind turbine power generation set high voltage ride through test system - Google Patents
Wind turbine power generation set high voltage ride through test system Download PDFInfo
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- CN203479995U CN203479995U CN201320557492.5U CN201320557492U CN203479995U CN 203479995 U CN203479995 U CN 203479995U CN 201320557492 U CN201320557492 U CN 201320557492U CN 203479995 U CN203479995 U CN 203479995U
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Abstract
The utility model provides a wind turbine power generation set high voltage ride through test system. The wind turbine power generation set high voltage ride through test system comprises a power grid high-voltage generation device connected between a tested wind turbine power generation set and the power grid. The high-voltage generation device comprises an inductive resistor X1, an inductive resistor X2, a switch K1 and a switch K2, the inductive resistor X1 is connected with the switch K1 in parallel and then the inductive resistor X1 and the switch K1 are connected between the tested wind turbine power generation set and the power grid, and the connecting point of the high-voltage generation device and the tested wind turbine power generation set passes through the switch K2 and the inductive resistor X2 and then is grounded, wherein the switch K2 and the inductive resistor X2 are connected in series. During the testing process, the switch K1 is disconnected, and the switch K2 is closed. The wind turbine power generation set high voltage ride through test system can real simulate and generate practical power grid overvoltage characteristics, and the rising speed of the voltage and the voltage waveform quality of the testing system coincide with the practical power grid overvoltage characteristics very well.
Description
Technical field
The utility model relates to wind energy turbine set field tests, is specifically related to a kind of high-voltage ride through of wind power generating set test macro.
Background technology
Rapidly, the electrical network penetrance of wind-powered electricity generation is more and more higher in Wind Power Generation Industry development, and wind-powered electricity generation and electrical network influence each other and increasingly manifest.Since 2010, because wind energy turbine set/wind-powered electricity generation unit does not possess low voltage crossing (Low Voltage Ride Through, LVRT) ability, there is the extensive off-grid accident of a lot of wind-powered electricity generations, brought huge challenge to the safe and stable operation of electric system.Since 2011, most wind energy turbine set/wind-powered electricity generation units have possessed low voltage ride-through capability, yet several wind-powered electricity generation off-grid accidents since 2012 show, it is the one of the main reasons of wind-powered electricity generation unit off-grid that wind energy turbine set/wind-powered electricity generation unit does not possess high voltage crossing ability (High Voltage Ride Through, HVRT).North China's wind energy turbine set electrical network generation three-phase in 2012 short trouble in short-term for example, the wind turbine that possesses low voltage ride-through capability form merit " pass through " low voltage crossing fault not off-grid move continuously, and in line voltage rejuvenation subsequently, because the inner reactive power compensator of electric system does not possess quick self-switchover function, its during line voltage falls for system provides a large amount of reactive power supports, yet after failure removal, System Reactive Power compensation system fails to regulate in time or excision, cause the idle surplus of partial electric grid, there is superpotential short trouble in electrical network, the a large amount of successes that make " pass through " low voltage crossing fault because of electrical network in short-term high voltage fail excise, off-grid unit has even surpassed the unit quantity in low voltage crossing process.Similar accident has occurred a lot of in 2013, had a strong impact on the safe and stable operation of electric system.
Further perfect along with the continuous expansion of wind-power electricity generation installed capacity and grid-connected criterion, having HRVT ability also can become the inevitable requirement to wind energy turbine set gradually.The wind-electricity integration criterion of Germany E.ON has proposed requirement to the HVRT ability of wind-powered electricity generation unit, require when line voltage rise to rated voltage 120% time, wind-powered electricity generation unit should be able to keep for a long time not off-grid operation, and requires wind-powered electricity generation unit in high voltage situation, to absorb a certain amount of reactive power.Australian taken the lead in formulating wind-powered electricity generation unit HVRT technical manual truly, require when line voltage rise sharply to rated voltage 130% time, wind-powered electricity generation unit should maintain not off-grid of 60ms, and large fault recovery electric current is provided enough.Relevant wind energy turbine set/high-voltage ride through of wind power generating set the standard of China also starts at present.
Therefore, for ensureing the power system safety and stability operation after large-scale wind power access, need badly and carry out the aptitude tests of wind energy turbine set/high-voltage ride through of wind power generating set, the high voltage crossing proving installation that development can real simulation electrical network high voltage characteristics is the most important thing.The portable wind-powered electricity generation unit height of utility model patent < < voltage passes through the proving installation > > patent No. and is: 201220255118.5, though a kind of electrical network high voltage modeling scheme is provided, it realizes the rising of wind-powered electricity generation unit set end voltage by the saltus step of transformer secondary tapping, but the high voltage waveform that the method produces, its voltage climbing speed is too fast, and cannot simulate phase angle and quality of power supply situation of change in actual electric network superpotential process, be not suitable for the test request of wind-powered electricity generation unit high voltage capability.
Utility model content
The utility model, for the deficiencies in the prior art, provides a kind of high-voltage ride through of wind power generating set test macro:
Comprise the electrical network high-voltage generating device being serially connected with between tested wind-powered electricity generation unit and electrical network, described high-voltage generating device comprises induction reactance X1, capacitive reactance X2, K switch 1 and K switch 2, after described induction reactance X1 is in parallel with described K switch 1, access between described tested wind-powered electricity generation unit and electrical network described K switch 2 and capacitive reactance X2 ground connection that described high-voltage generating device is connected with the tie point place process of described tested wind-powered electricity generation unit;
K switch described in test process 1 disconnects, described K switch 2 closures.
In the first preferred embodiment that the utility model provides: before described high-voltage generating device drops into test, described K switch 1 closure, described K switch 2 disconnects;
While starting test, first disconnect described K switch 1, then closed described K switch 2;
While finishing test, first disconnect described K switch 2, then closed described K switch 1.
In the second preferred embodiment that the utility model provides: described induction reactance X1 adopts dry-type air-core reactor, dry-type iron-core reactor, oil immersion iron-core reactor, oil-immersed hollow reactor, clipping dry-type air-core reactor, wrapped formula dry-type air-core reactor or cement reactor, and quality factor X/R is not less than 10.
In the 3rd preferred embodiment that the utility model provides: described capacitive reactance X2 adopts mechanical opening-closing capacitor bank, thyristor switchable capacitor group or static reacance generator;
Described capacitive reactance X2 adopts wye connection or triangular form connection;
The every damping resistance of series connection, flat ripple reactance and reactive power support capacitor of comprising mutually of described capacitive reactance X2, in three-phase any one arranges disconnector K3 and K4 with the tie point place of other two-phase, described disconnector K3, K4 are closed or while disconnecting, the tie point three-phase voltage balance lifting of described high-voltage generating device and described tested wind-powered electricity generation unit, when described disconnector K3, the other disconnection of closure of K4, the tie point imbalance of three-phase voltage lifting of described high-voltage generating device and described tested wind-powered electricity generation unit.
In the 4th preferred embodiment that the utility model provides: the voltage of realizing the different amplitudes of tie point of described high-voltage generating device and described tested wind-powered electricity generation unit by different induction reactance and capacitive reactance parameter matching are set rises, induction reactance X1 makes the tie point voltage of described high-voltage generating device and described tested wind-powered electricity generation unit within the scope of 107%Un-163%Un, have the high voltage waveform of 14 kinds of different voltage amplitudes from the parameter selection of capacitive reactance X2;
Described K switch 1, K2 be for adopting electronic switch or mechanical switch, controls described K switch 1, K2 realizes the high voltage time span of the tie point of described high-voltage generating device and described tested wind-powered electricity generation unit is controlled.
In the 5th preferred embodiment that the utility model provides: described high-voltage generating device comprises PT cabinet 1, PT cabinet 2, switch cubicle 1, switch cubicle 2, reactor and capacitor;
Described reactor is induction reactance X1, described capacitor is capacitive reactance X2, described switch cubicle 2 is described K switch 1, described isolating switch CB3 is described K switch 2, described high-voltage generating device is connected with described reactor one end with switch cubicle 1 through described PT cabinet 1 with the tie point of described grid side, and described high-voltage generating device is connected with the other end of described reactor through described PT cabinet 2 with the tie point of described tested wind-powered electricity generation unit;
Described switch cubicle 1 and switch cubicle 2 are chosen SF6 gas insulation switch cabinet.
In the 6th preferred embodiment that the utility model provides: described high-voltage ride through of wind power generating set test macro comprises measuring system and on the spot control system on the spot;
Described measuring system on the spot is all connected with described high-voltage generating device with described control system on the spot;
Described measuring system on the spot measure described high-voltage generating device and grid side and wind-powered electricity generation unit side tie point voltage information and described information is uploaded to outside remote monitoring system;
Described in described remote monitoring system sends steering order to by described measuring system on the spot, control system is controlled the operation of described high-voltage generating device on the spot;
Described in described high-voltage generating device sends to status signal, on the spot after control system, described control system is on the spot real-time transmitted to described remote monitoring system by status signal.
In the 7th preferred embodiment that the utility model provides: described test macro is installed in TEU (Twenty-foot Equivalent Unit);
At internal container, from inlet wire cable side to outlet cable side, be disposed with system, switch cabinet combination, reactor combination and capacitor bank on the spot, measuring system and on the spot control system on the spot described in described system on the spot comprises; Described switch cabinet combination comprises PT cabinet 2, switch cubicle 2, switch cubicle 1 and the PT cabinet 1 being arranged in order; Described Reactor banks is combined into the combination of described induction reactance X1, and described capacitor bank is the combination of described reactance X2; Described isolating switch CB3 is arranged at the below of described capacitor bank.
In the 8th preferred embodiment that the utility model provides: described test macro disconnects described tested wind-powered electricity generation unit step-up transformer high-pressure side wiring while testing, between the described test macro series connection described tested wind-powered electricity generation unit step-up transformer of access and described grid side;
After wiring completes, all operations of described test macro all completes by described remote monitoring system.
The utility model is for the deficiencies in the prior art, and the beneficial effect of a kind of high-voltage ride through of wind power generating set test macro providing comprises:
1, a kind of high-voltage ride through of wind power generating set test macro that the utility model provides, after induction reactance X1 is in parallel with K switch 1, access between tested wind-powered electricity generation unit and electrical network, high-voltage generating device with the tie point place of tested wind-powered electricity generation unit by K switch 2 and the capacitive reactance X2 ground connection connected, test process is realized according to the disconnection of sequential and closure by gauge tap K1 and K2, the superpotential that test point produces is identical with the mechanism that actual electric network superpotential produces, speed and voltage waveform quality thereof that voltage rises are all very identical with actual electric network surge characteristic, can produce actual power network overvoltage characteristic by real simulation, can realize 380V, 690V, the high-voltage state simulation of 10KV and 35KV electric system.
2, capacitive reactance X2 can adopt triangular form connection or wye connection, the every damping resistance of series connection, flat ripple reactance and reactive power support capacitor of comprising mutually, damping resistance and flat ripple reactance can two be selected one, damping resistance can prevent system power vibration, reduces the transient process of capacitor switching immediate current and voltage; Smoothing reactor can limiting capacitance device short-circuit current and inrush phenomenon; Capacitor can provide the support of capacitive reactive power electric current, coordinates the voltage of induction reactance X1 lifting test point.And any one can arrange two disconnectores with the tie point place of other two-phase in the three-phase of capacitive reactance X2, control the closure of this disconnector and disconnect the balance lifting of test point voltage three-phase voltage or the uneven lifting that can make this high-voltage generating device.
3, different induction reactance values can obtain different voltage amplitudes in test point from induction reactance X1 and the capacitive reactance X2 acting in conjunction of capacitor value, and in embodiment, the parameter of induction reactance X1 and capacitive reactance X2 selects within the scope of voltage 107%Un-163%Un, to have the high voltage waveform of 14 kinds of different voltage amplitudes.
4, high-voltage ride through of wind power generating set test macro also comprises outside connected remote monitoring system, and all operations of test macro all completes by remote monitoring system.
5, high-voltage ride through of wind power generating set test macro can be installed in TEU (Twenty-foot Equivalent Unit), and test wiring is simple, is convenient to move, and meets the high voltage crossing demand of the wind-powered electricity generation unit that is positioned at different wind energy turbine set.
Accompanying drawing explanation
Be illustrated in figure 1 the single-phase schematic diagram of a kind of high-voltage generating device that the utility model provides;
Be illustrated in figure 2 a kind of switch motion of high-voltage generating device and the sequential chart of impedance input situation that the utility model provides;
Be illustrated in figure 3 the Basic Topological figure of capacitive reactance X2 in a kind of high-voltage generating device that the utility model provides;
Be illustrated in figure 4 the wiring schematic diagram in a kind of high-voltage generating device practical application that the utility model provides;
Be illustrated in figure 5 the schematic diagram of the embodiment of a kind of high-voltage ride through of wind power generating set test macro that the utility model provides;
Be illustrated in figure 6 a kind of high-voltage ride through of wind power generating set test macro that the utility model provides layout in container;
Be illustrated in figure 7 a kind of high-voltage ride through of wind power generating set test system and test wiring diagram that the utility model provides;
The actual measurement line voltage real-time waveform figure of embodiment when a kind of high-voltage ride through of wind power generating set test macro that being illustrated in figure 8 the utility model provides is three-phase symmetrical high voltage;
The line voltage effective value oscillogram of embodiment when a kind of high-voltage ride through of wind power generating set test macro that being illustrated in figure 9 the utility model provides is three-phase symmetrical high voltage;
The actual measurement line voltage real-time waveform figure of embodiment when a kind of high-voltage ride through of wind power generating set test macro providing for the utility model is as shown in figure 10 the asymmetric high voltage of three-phase;
The line voltage effective value oscillogram of embodiment when a kind of high-voltage ride through of wind power generating set test macro providing for the utility model is as shown in figure 11 the asymmetric high voltage of three-phase.
Embodiment
With reference to the accompanying drawings embodiment of the present utility model is described in further detail below.
The utility model provides a kind of high-voltage ride through of wind power generating set test macro, comprise high-voltage generating device, the access point of this high-voltage generating device connects grid side, test point connects tested wind-powered electricity generation unit side, simulating grid superpotential is tested the high voltage crossing ability of this tested wind-powered electricity generation unit, the single-phase schematic diagram of this high-voltage generating device as shown in Figure 1, as shown in Figure 1, this high voltage generating circuit comprises induction reactance X1, capacitive reactance X2, K switch 1 and K switch 2, induction reactance X1 is connected access point other end connecting test point with K switch 1 one end, one end connecting test point other end ground connection after capacitive reactance X2 connects with K switch 2.
In test process, K switch 1 disconnects, K switch 2 closures, and capacitive reactance X2 provides the support of capacitive reactive power electric current, the voltage drop that this capacitive reactive power electric current produces on induction reactance X1, the voltage amplitude of raising test point has reduced the impact on grid side access point voltage simultaneously.
Further, high-voltage generating device drops in test process, cut-offfing of K switch 1 and K switch 2 need be carried out in a certain order, be illustrated in figure 2 a kind of switch motion of high-voltage generating device and the sequential chart of impedance input situation that the utility model provides, as shown in Figure 2, before high-voltage generating device drops into test, K switch 1 closure, K switch 2 disconnects, and now, induction reactance X1 and capacitive reactance X2 all do not have in place in circuit; While starting test, first cut-off switch K1, makes induction reactance X1 first drop in test circuit, then Closing Switch K2, drops in test circuit capacitive reactance X2, produces the high voltage in test process, the high voltage duration, the time T in figure 2 determined by the Time dependent of K switch 2 closures; While finishing test, first cut-off switch K2, and then Closing Switch K1; Whole process does not allow K switch 1 and K2 simultaneously closed.This high-voltage generating device, can produce actual power network overvoltage characteristic by real simulation, the superpotential producing is identical with the mechanism that actual electric network superpotential produces, speed and voltage waveform quality thereof that voltage rises are all very identical with actual electric network surge characteristic, and this test macro can be realized the high-voltage state simulation of 380V, 690V, 10KV and 35KV electric system.
Induction reactance X1 rises from the voltage that capacitive reactance X2 acting in conjunction obtains different voltage amplitudes in test point, and the amplitude of voltage lifting is determined jointly by induction reactance value and capacitor value.
Induction reactance X1 can adopt dry-type air-core reactor, dry-type iron-core reactor, oil immersion iron-core reactor, oil-immersed hollow reactor, clipping dry-type air-core reactor, wrapped formula dry-type air-core reactor, cement reactor etc., for meeting the test request being incorporated into the power networks under condition, reduce the impact of wind-powered electricity generation unit active power on test point voltage magnitude, the quality factor X/R(X=ω L requiring) should be the bigger the better, generally should be not less than 10.Take 35kV test macro as example, and induction reactance X1 chooses the dry-type air-core reactor with tap, and reactor parameter is as shown in table 1 below.
Band tap reactor parameter for table 1 induction reactance X1
| Outside tap | Inner tap | Inductance value (mH) | 50Hz equivalent resistance (Ω) | Resistance value (Ω) |
| 1-2 | 5-6 | 214 | 67.50 | 0.58 |
| 1-2 | 4-6 | 195 | 61.50 | 0.55 |
| 1-2 | 4-7 | 172 | 54.10 | 0.52 |
| 1-3 | 5-6 | 120 | 37.80 | 0.37 |
| 1-3 | 4-6 | 103 | 32.50 | 0.34 |
| 1-3 | 4-7 | 82 | 25.80 | 0.31 |
| 2-3 | Without tap | 50.3 | 15.80 | 0.21 |
Capacitive reactance X2 can adopt idle generation and the compensation systems such as mechanical opening-closing capacitor bank (MSC), thyristor switchable capacitor group (TSC), static reacance generator (SVG).
The Basic Topological figure of capacitive reactance X2 as shown in Figure 3, the three-phase capacitive reactance branch road mode of connection can adopt triangular form or wye connection, in three-phase any one arranges disconnector K3 and K4 with the tie point place of other two-phase, this disconnector K3, K4 are closed or while disconnecting, the lifting of test point three-phase voltage balance, when this disconnector K3, the other disconnection of closure of K4, the lifting of test point imbalance of three-phase voltage.
Every capacitive reactance is propped up route damping resistance, flat ripple reactance and reactive power support capacitor three parts and is formed, damping resistance and flat ripple reactance can two be selected one, the A circuitry phase of take is explained the effect of various piece as example, wherein the Main Function of damping resistance R1 is to prevent system power vibration, reduces the transient process of capacitor switching immediate current and voltage; The effect of smoothing reactor L1 is mainly short-circuit current and the inrush phenomenon of limiting capacitance device, and its reactance Rate value generally≤0.5%; The effect of capacitor is to provide the support of capacitive reactive power electric current, the voltage that coordinates induction reactance X1 lifting test point, in test point simulation, produce high voltage processes, voltage lifting effect due to induction reactance X1, the terminal voltage of capacitor C1 increases, and should select the rated voltage of capacitor higher than ceiling voltage 10% left and right of test point.
By the value of different induction reactance X1 and capacitive reactance X2, can obtain in test point the line voltage ascensional range of different size, and the impact of test macro electrical network access point is reached to minimum.For more real simulating grid high voltage processes, the value of its induction reactance X1 can not be excessive, and the capacity of short circuit that should guarantee test point is at least that tested unit capacity is more than 3 times.Take 35kV electrical network as example, the capacity of short circuit of supposing electrical network 35kV bus is 200MVA, the rated capacity of test wind-powered electricity generation unit is 5MVA, its equivalent inductive reactance value should not be greater than 75.5 Ω, different induction reactance X1 are as shown in table 2 from the various combination gained high voltage parameter of different capacitive reactance X2 parameters, by different induction reactance and capacitive reactance parameter matching, the voltage that can realize different amplitudes rises, and above-mentioned induction reactance X1 and the parameter selection of capacitive reactance X2 can have the high voltage waveform of 14 kinds of different voltage amplitudes within the scope of voltage 107%Un-163%Un.The accurate control of K switch 1, K2 can accurately be controlled high voltage time span.
The different induction reactance of table 2 and capacitive reactance parameter combinations high voltage parameter list
In actual applications, this high-voltage generating device can comprise PT cabinet 1, PT cabinet 2, switch cubicle 1, switch cubicle 2, reactor and capacitor, be illustrated in figure 4 the wiring schematic diagram in this high-voltage generating device practical application, as shown in Figure 4, reactor is induction reactance X1, capacitor is capacitive reactance X2, switch cubicle 2 is K switch 1, isolating switch CB3 is K switch 2, the access point being connected with grid side is connected with reactor one end with switch cubicle 1 through PT cabinet 1, and test point is connected with the other end of reactor through PT cabinet 2.Preferably, switch cubicle 1 and 2 can be chosen SF6 gas insulation switch cabinet, and this type switch cubicle volume is little, be applicable to container and install, be applicable to long-distance transportation, cut-off reliable, institute once live part is airtight insulation processing, guarantees when test macro is charged to carry out safely local operation.
Further, be illustrated in figure 5 the schematic diagram of the embodiment of the high-voltage ride through of wind power generating set test macro that the utility model provides, as shown in Figure 5, high-voltage ride through of wind power generating set test macro can also comprise measuring system and on the spot control system on the spot, and measuring system is all connected with high-voltage generating device with control system on the spot on the spot.Measuring system is measured the information such as voltage of high-voltage generating device test point and access point and this information is uploaded to outside remote monitoring system on the spot.Remote monitoring system sends steering order to operation that control system is on the spot controlled high-voltage generating device by measuring system on the spot, and high-voltage generating device sends to status signal on the spot after control system, this on the spot control system status signal is real-time transmitted to remote monitoring system.
A kind of high-voltage ride through of wind power generating set test macro that the utility model provides can be installed in TEU (Twenty-foot Equivalent Unit), and test wiring is simple, is convenient to move, and meets the high voltage crossing demand of the wind-powered electricity generation unit that is positioned at different wind energy turbine set.System major equipment switch cabinet combination, reactor combination, the layout that capacitor bank and the on the spot system integration are installed on same container as shown in Figure 6, as shown in Figure 6, at internal container, from inlet wire cable side, to outlet cable side, be disposed with system on the spot, switch cabinet combination, reactor combination and capacitor bank, system comprises measuring system and on the spot control system on the spot on the spot, the PT cabinet 2 of switch cabinet combination for being arranged in order from left to right, switch cubicle 2, switch cubicle 1 and PT cabinet 1, Reactor banks is combined into the combination of induction reactance X1, capacitor bank is the combination of reactance X2, wherein isolating switch CB3 is arranged at the below of capacitor bank.
Be illustrated in figure 7 a kind of high-voltage ride through of wind power generating set test system and test wiring diagram that the utility model provides, as shown in Figure 7, during test, disconnect the high-pressure side wiring of wind-powered electricity generation unit step-up transformer, between this high-voltage ride through of wind power generating set test macro series connection inlet air group of motors step-up transformer and access electrical network, once wiring completes, all operations of test macro all completes by remote monitoring system.
Existing equipment access 35kV medium voltage network is that example describes the actual output performance of equipment:
(1) test macro is set as three-phase symmetrical high voltage, and high voltage amplitude setting value is 130%Un, duration 60ms.As shown in Figure 8, Fig. 9 is corresponding line voltage effective value constantly to actual measurement line voltage real-time waveform.
(2) test macro is set as the asymmetric high voltage of three-phase, and high voltage amplitude setting value is 116%Un, duration 200ms.As shown in figure 10, Figure 11 is corresponding line voltage effective value constantly to actual measurement line voltage real-time waveform.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit, although the utility model is had been described in detail with reference to above-described embodiment, those of ordinary skill in the field are to be understood that: still can modify or be equal to replacement embodiment of the present utility model, and do not depart from any modification of the utility model spirit and scope or be equal to replacement, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (9)
1. a high-voltage ride through of wind power generating set test macro, comprise the electrical network high-voltage generating device being serially connected with between tested wind-powered electricity generation unit and electrical network, it is characterized in that, described high-voltage generating device comprises induction reactance X1, capacitive reactance X2, K switch 1 and K switch 2, after described induction reactance X1 is in parallel with described K switch 1, access between described tested wind-powered electricity generation unit and electrical network described K switch 2 and capacitive reactance X2 ground connection that described high-voltage generating device is connected with the tie point place process of described tested wind-powered electricity generation unit;
K switch described in test process 1 disconnects, described K switch 2 closures.
2. test macro as claimed in claim 1, is characterized in that,
Before described high-voltage generating device drops into test, described K switch 1 closure, described K switch 2 disconnects;
While starting test, first disconnect described K switch 1, then closed described K switch 2;
While finishing test, first disconnect described K switch 2, then closed described K switch 1.
3. test macro as claimed in claim 1, it is characterized in that, described induction reactance X1 adopts dry-type air-core reactor, dry-type iron-core reactor, oil immersion iron-core reactor, oil-immersed hollow reactor, clipping dry-type air-core reactor, wrapped formula dry-type air-core reactor or cement reactor, and quality factor X/R is not less than 10.
4. test macro as claimed in claim 1, is characterized in that, described capacitive reactance X2 adopts mechanical opening-closing capacitor bank, thyristor switchable capacitor group or static reacance generator;
Described capacitive reactance X2 adopts wye connection or triangular form connection;
The every damping resistance of series connection, flat ripple reactance and reactive power support capacitor of comprising mutually of described capacitive reactance X2, in three-phase any one arranges disconnector K3 and K4 with the tie point place of other two-phase, described disconnector K3, K4 are closed or while disconnecting, the tie point three-phase voltage balance lifting of described high-voltage generating device and described tested wind-powered electricity generation unit, when described disconnector K3, the other disconnection of closure of K4, the tie point imbalance of three-phase voltage lifting of described high-voltage generating device and described tested wind-powered electricity generation unit.
5. test macro as claimed in claim 1, is characterized in that, the voltage of realizing the different amplitudes of tie point of described high-voltage generating device and described tested wind-powered electricity generation unit by different induction reactance and capacitive reactance parameter matching are set rises;
Described K switch 1, K2 be for adopting electronic switch or mechanical switch, controls described K switch 1, K2 realizes the high voltage time span of the tie point of described high-voltage generating device and described tested wind-powered electricity generation unit is controlled.
6. test macro as claimed in claim 1, is characterized in that, described high-voltage generating device comprises PT cabinet 1, PT cabinet 2, switch cubicle 1, switch cubicle 2, reactor and capacitor;
Described reactor is described induction reactance X1, described capacitor is described capacitive reactance X2, described switch cubicle 2 is described K switch 1, isolating switch CB3 is described K switch 2, described high-voltage generating device is connected with described reactor one end with switch cubicle 1 through described PT cabinet 1 with the tie point of described grid side, and described high-voltage generating device is connected with the other end of described reactor through described PT cabinet 2 with the tie point of described tested wind-powered electricity generation unit;
Described switch cubicle 1 and switch cubicle 2 are chosen SF6 gas insulation switch cabinet.
7. test macro as claimed in claim 6, is characterized in that, described high-voltage ride through of wind power generating set test macro comprises measuring system and on the spot control system on the spot;
Described measuring system on the spot is all connected with described high-voltage generating device with described control system on the spot;
Described measuring system on the spot measure described high-voltage generating device and grid side and wind-powered electricity generation unit side tie point voltage information and described information is uploaded to outside remote monitoring system;
Described in described remote monitoring system sends steering order to by described measuring system on the spot, control system is controlled the operation of described high-voltage generating device on the spot;
Described in described high-voltage generating device sends to status signal, on the spot after control system, described control system is on the spot real-time transmitted to described remote monitoring system by status signal.
8. test macro as claimed in claim 7, is characterized in that, described test macro is installed in TEU (Twenty-foot Equivalent Unit);
At internal container, from inlet wire cable side to outlet cable side, be disposed with system, switch cabinet combination, reactor combination and capacitor bank on the spot, measuring system and on the spot control system on the spot described in described system on the spot comprises; Described switch cabinet combination comprises PT cabinet 2, switch cubicle 2, switch cubicle 1 and the PT cabinet 1 being arranged in order; Described Reactor banks is combined into the combination of described induction reactance X1, and described capacitor bank is the combination of described reactance X2; Described isolating switch CB3 is arranged at the below of described capacitor bank.
9. test macro as claimed in claim 7, it is characterized in that, described test macro disconnects described tested wind-powered electricity generation unit step-up transformer high-pressure side wiring while testing, between the described test macro series connection described tested wind-powered electricity generation unit step-up transformer of access and described grid side;
After wiring completes, all operations of described test macro all completes by described remote monitoring system.
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| CN104578170A (en) * | 2015-02-09 | 2015-04-29 | 河南柏特电气设备有限公司 | High-low-voltage ride-through device of thermal power generating unit auxiliary frequency converter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104578170A (en) * | 2015-02-09 | 2015-04-29 | 河南柏特电气设备有限公司 | High-low-voltage ride-through device of thermal power generating unit auxiliary frequency converter |
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