CN102904276B - A kind of resonance descending device for new-energy grid-connected and its implementation - Google Patents
A kind of resonance descending device for new-energy grid-connected and its implementation Download PDFInfo
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Abstract
The present invention relates to a kind of resonance descending device for new-energy grid-connected and its implementation, resonance descending device comprises resonance step-up link, rectification link harmony shakes step-down link; Be connected with described resonance step-down link by direct current cables or DC link after described resonance step-up link is connected with rectification link.The present invention adopts the resonance ascending, descending pressure ring joint based on thyristor technology to replace the devices such as transformer, high-voltage large-capacity VSC device and DC/DC converter, resonance descending device technical difficulty provided by the invention is low, cost is low, is applicable to novel new-energy grid-connected mode.
Description
Technical field
The present invention relates to device and its implementation of field of power electronics, be specifically related to a kind of resonance descending device for new-energy grid-connected and its implementation.
Background technology
Current new-energy grid-connected structure, the mode changed between alternating voltage and direct voltage mainly adopts step-up/down transformer and high-voltage large-capacity VSC rectification/inverter acting in conjunction, with high-voltage large-capacity DC/DC lifting/voltage reducing link and low pressure low capacity VSC rectification/inverter acting in conjunction two kinds mode, wherein high-voltage large-capacity VSC cost is high, DC/DC device technique difficult point is large, is unfavorable for manufacturing.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of resonance descending device for new-energy grid-connected and its implementation, the present invention adopts the resonance ascending, descending pressure ring joint based on thyristor technology to replace the devices such as transformer, high-voltage large-capacity VSC device and DC/DC converter, resonance descending device technical difficulty provided by the invention is low, cost is low, is applicable to novel new-energy grid-connected mode.
The object of the invention is to adopt following technical proposals to realize:
For a resonance descending device for new-energy grid-connected, its improvements are, described resonance descending device comprises resonance step-up link, rectification link harmony shakes step-down link; Be connected with described resonance step-down link by direct current cables or DC link after described resonance step-up link is connected with rectification link.
Wherein, described resonance step-up link comprises DC power supply DC, low pressure bulky capacitor C10, high pressure small capacitances C11, thyristor T11, thyristor T13 and resonance reactor L11;
Described low pressure bulky capacitor C10, thyristor T11, resonance reactor L11 are connected successively with high pressure small capacitances C11, form low pressure bulky capacitor C10-thyristor T11-resonance reactor L11-high pressure small capacitances C11 closed-loop path;
Described DC power supply DC is connected in parallel on low pressure bulky capacitor C10 two ends;
Described thyristor T13 is connected in parallel on high pressure small capacitances C11 and resonance reactor L11 two ends, forms resonance reactor L11-thyristor T13-high pressure small capacitances C11 closed-loop path.
Wherein, described resonance step-down link comprises DC power supply DC, electric capacity C20, high pressure small capacitances C21, low pressure bulky capacitor C22, thyristor T21, thyristor T22, thyristor T23, reactor L21, reactor L22 and load resistance R2;
Described electric capacity C20, thyristor T21 are connected successively with reactor L21; Described thyristor T22, reactor L22 are connected successively with low pressure bulky capacitor C22, described high pressure small capacitances C21 is connected in parallel on thyristor T22, reactor L22 and low pressure bulky capacitor C22 branch road two ends, forms thyristor T22-reactor L22-low pressure bulky capacitor C22-high pressure small capacitances C21 closed-loop path;
Described DC power supply DC is connected in parallel on electric capacity C20 two ends;
Described thyristor T23 is connected in parallel on electric capacity C20 and thyristor T21 two ends; Thyristor T23, reactor L21 are connected successively with high pressure small capacitances C21, form high pressure small capacitances C21-thyristor T23-reactor L21 closed-loop path;
Described high pressure small capacitances C21 is connected in parallel on electric capacity C20, thyristor T21 and reactor L21 two ends respectively, forms electric capacity C20-thyristor T21-reactor L21-capacitor C21 closed-loop path;
Described load resistance R2 is connected in parallel on low pressure bulky capacitor C22 two ends.
Wherein, described rectification link comprises half-wave rectifier bridge D11, smoothing reactor L12, support capacitor C12 and sustained diode 12;
Wherein half-wave rectifier bridge D11, smoothing reactor L12 are connected successively with support capacitor C12;
Described sustained diode 12 is connected in parallel on smoothing reactor L12 and support capacitor C12 two ends.
Wherein, the new energy electric field of at least one is connected with DC bus respectively by VSC rectifier; Described DC bus is connected with rectification link after being connected with described resonance step-up link again; Described rectification link is connected with resonance step-down link by direct current cables or DC link; Resonance step-down link is connected with the VCS inverter of at least one respectively by DC bus.
The present invention is based on the implementation method of a kind of resonance descending device for new-energy grid-connected that another object provides, its improvements are, described implementation method comprises the steps:
Boosted by described resonance step-up link after A, at least one new energy electric field to be connected with DC bus respectively by VSC rectifier;
Magnitude of voltage after B, boosting is changed to positive to magnitude of voltage through rectification link;
C, described forward voltage values are transferred to after electrical network through the step-down of resonance step-down link by direct current cables or DC transmission line;
Direct voltage after D, step-down is connected with the VSC inverter of at least one respectively by DC bus, is alternating voltage by direct voltage inversion;
E, described AC voltages transmission are to electrical network.
Wherein, in described steps A, the boosting of resonance step-up link is realized by two mode of operations, comprises the steps:
I, implement first job pattern, described thyristor T13 conducting, described thyristor T11 turns off, and high pressure small capacitances C11 will vibrate along resonance reactor L11-thyristor T13 closed-loop path half period, to high pressure small capacitances C11 reverse voltage;
II, implement the second mode of operation, i.e. thyristor T11 conducting, thyristor T13 turns off, and now high pressure small capacitances will vibrate along low pressure bulky capacitor C10-thyristor T11-resonance reactor L11 closed-loop path, to high pressure small capacitances C11 positive charge.
Wherein, in described step C, the step-down of resonance step-down link is realized by three mode of operations, comprises the steps:
(1) implement first job pattern, i.e. thyristor T21 conducting, thyristor T22 and thyristor T23 turns off, and electric capacity C20 along thyristor T21-reactor L21-capacitor C21 closed-loop path vibration half period, will charge to high pressure small capacitances C21;
(2) implement second mode of operation, namely thyristor T22 closes, and thyristor T21 and thyristor T23 disconnects, and high pressure small capacitances C21, along thyristor T22-reactor L22-low pressure bulky capacitor C22 closed-loop path vibration half period, charges to low pressure bulky capacitor C22;
(3) implement the 3rd mode of operation, namely thyristor T23 closes, and thyristor T21 and thyristor T22 disconnects, and reactor L21 to vibrate half period along high pressure small capacitances C21 and thyristor T23 closed-loop path, by the energy trasfer on reactor L21 on capacitor C21.
Low pressure bulky capacitor described in the invention and high pressure small capacitances are comparatively speaking, and it is below 10kV that low pressure bulky capacitor bears voltage, more than capacitance 5000uF, and high pressure small capacitances bears more than voltage 10kV, capacitance below 1000uF.
Compared with the prior art, the beneficial effect that the present invention reaches is:
Resonance descending device for new-energy grid-connected provided by the invention, apply a main equipment, namely resonance step-up link and resonance step-down link substitute the equipment such as transformer, high-voltage large-capacity VSC device and DC/DC converter, circuit design is simple, control strategy easily realizes, reliability is high, and cost is low, and device is easy to choose and easy to manufacture.
Accompanying drawing explanation
Fig. 1 is the topology diagram of new-energy grid-connected provided by the invention;
Fig. 2 is the schematic diagram of the resonance descending device for new-energy grid-connected provided by the invention;
Fig. 3 is resonance step-up link topology diagram provided by the invention;
Fig. 4 is resonance step-down link topology diagram provided by the invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Resonance descending device for new-energy grid-connected provided by the invention, the resonance ascending, descending pressure ring joint based on thyristor technology is adopted to replace the devices such as transformer, high-voltage large-capacity VSC device and DC/DC converter, the novel new-energy grid-connected mode that this resonance descending device technical difficulty is low, cost is low.
As shown in Figure 2, this resonance descending device comprises resonance step-up link to resonance descending device schematic diagram for new-energy grid-connected provided by the invention, rectification link harmony shakes step-down link; Be connected with described resonance step-down link by direct current cables or DC link after resonance step-up link is connected with rectification link.
As shown in Figure 3, resonance step-up link comprises DC power supply DC, low pressure bulky capacitor C10, high pressure small capacitances C11, thyristor T11, thyristor T13 and resonance reactor L11 to resonance step-up link topological structure provided by the invention; Low pressure bulky capacitor C10, thyristor T11, resonance reactor L11 are connected successively with high pressure small capacitances C11, form low pressure bulky capacitor C10-thyristor T11-resonance reactor L11-high pressure small capacitances C11 closed-loop path; DC power supply DC is connected in parallel on low pressure bulky capacitor C10 two ends; Thyristor T13 is connected in parallel on high pressure small capacitances C11 and resonance reactor L11 two ends, forms resonance reactor L11-thyristor T13-high pressure small capacitances C11 closed-loop path.
As shown in Figure 4, resonance step-down link comprises DC power supply DC, electric capacity C20, high pressure small capacitances C21, low pressure bulky capacitor C22, thyristor T21, thyristor T22, thyristor T23, reactor L21, reactor L22 and load resistance R2 to resonance step-down link topological structure provided by the invention; Electric capacity C20, thyristor T21 are connected successively with reactor L21; Described thyristor T22, reactor L22 are connected successively with low pressure bulky capacitor C22, described high pressure small capacitances C21 is connected in parallel on thyristor T22, reactor L22 and low pressure bulky capacitor C22 branch road two ends, forms thyristor T22-reactor L22-low pressure bulky capacitor C22-high pressure small capacitances C21 closed-loop path; DC power supply DC is connected in parallel on electric capacity C20 two ends; Thyristor T23 is connected in parallel on electric capacity C20 and thyristor T21 two ends; Thyristor T23, reactor L21 are connected successively with high pressure small capacitances C21, form high pressure small capacitances C21-thyristor T23-reactor L21 closed-loop path; High pressure small capacitances C21 is connected in parallel on electric capacity C20, thyristor T21 and reactor L21 two ends simultaneously, forms electric capacity C20-thyristor T21-reactor L21-capacitor C21 closed-loop path; Load resistance R2 is connected in parallel on low pressure bulky capacitor C22 two ends.
Rectification link comprises half-wave rectifier bridge D11, smoothing reactor L12, support capacitor C12 and sustained diode 12; Half-wave rectifier bridge D11, smoothing reactor L12 are connected successively with support capacitor C12; Sustained diode 12 is connected in parallel on smoothing reactor L12 and support capacitor C12 two ends.
As shown in Figure 1, multiple new energy electric field is connected with DC bus respectively by VSC rectifier the topological structure of new-energy grid-connected provided by the invention; Described DC bus is connected with rectification link after being connected with described resonance step-up link again; Described rectification link is connected with resonance step-down link by direct current cables or DC link; Resonance step-down link is connected with multiple VCS inverter respectively by DC bus.
The implementation method of the resonance descending device for new-energy grid-connected provided by the invention, comprises the steps:
A, multiple small-sized new energy electric field are connected with DC bus respectively by VSC rectifier, and DC bus connects the boosting of resonance step-up link, and voltage waveform is the positive and negative wave of oscillation increased gradually;
Resonance step-up coordinates realization by two mode of operations, I, enforcement first job pattern, described thyristor T13 conducting, described thyristor T11 turns off, high pressure small capacitances C11 will along resonance reactor L11-thyristor T13 closed-loop path vibration half period, and the first mode of operation plays the effect of high pressure small capacitances C11 reverse voltage;
II, implement the second mode of operation, i.e. thyristor T11 conducting, thyristor T13 turns off, and now high pressure small capacitances will vibrate along low pressure bulky capacitor C10-thyristor T11-resonance reactor L11 closed-loop path, and the second mode of operation plays the effect of high pressure small capacitances C11 positive charge.
Under desirable operating mode, two mode of operations are respectively run is once one-period, the electric capacity C voltage rise height 2U(U that powers on is DC source DC voltage), multiple oscillation through first job pattern and second mode of operation can obtain testing high voltage, when line loss and power reach balance, circuit enters steady operational status, obtain stable high voltage, high-tension size can be regulated by the size of supply voltage U.
B, high voltage are the waveform of positive and negative vibration, and in order to voltage being become direct voltage, need to connect rectification link after boosting link, rectification link comprises half-wave rectifier bridge D11, smoothing reactor L12, support capacitor C12, sustained diode 12.Wherein half-wave rectifier bridge D11, smoothing reactor L12 are connected with support capacitor C12 order, and sustained diode 12 is connected in parallel on smoothing reactor L12 and support capacitor C12 two ends.Boosting link is connected with rectification link and can obtains galvanic current pressure, could be connected with step-down link after transmission.
Through the step-down of resonance step-down link after C, described forward voltage values are transferred to electrical network by direct current cables or DC transmission line: the step-down of resonance step-down link is realized by three mode of operations, comprises the steps:
(1) first job pattern is implemented, i.e. thyristor T21 conducting, thyristor T22 and thyristor T23 turns off, and electric capacity C20 will along thyristor T21-reactor L21-capacitor C21 closed-loop path vibration half period, and the first mode of operation plays the effect into high pressure small capacitances C21 charges;
(2) second mode of operation is implemented, namely thyristor T22 closes, thyristor T21 and thyristor T23 disconnects, and high pressure small capacitances C21 is along thyristor T22-reactor L22-low pressure bulky capacitor C22 closed-loop path vibration half period, and second mode of operation plays the effect into low pressure bulky capacitor C22 charges;
(3) the 3rd mode of operation is implemented, namely thyristor T23 closes, thyristor T21 and thyristor T22 disconnects, and reactor L21 to vibrate half period along high pressure small capacitances C21 and thyristor T23 closed-loop path, and the 3rd mode of operation plays the energy trasfer on reactor to the effect on capacitor.Low pressure bulky capacitor C22 and load R2 forms stable operation loop, and load both end voltage is low-voltage, reaches the effect of step-down.By the size regulating the capacitance of low pressure bulky capacitor just can control low-voltage.
Direct voltage after D, step-down is connected with multiple VSC inverter respectively by DC bus, is alternating voltage by direct voltage inversion;
E, described AC voltages transmission, to electrical network, are successfully completed new-energy grid-connected.
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. for a resonance descending device for new-energy grid-connected, it is characterized in that, described resonance descending device comprises resonance step-up link, rectification link harmony shakes step-down link; Be connected with described resonance step-down link by direct current cables or DC link after described resonance step-up link is connected with rectification link;
Described resonance step-up link comprises low pressure bulky capacitor C10, high pressure small capacitances C11, thyristor T11, thyristor T13 and resonance reactor L11; One end of described low pressure bulky capacitor C10 is connected with the anode of thyristor T11, and the negative electrode of described thyristor T11 is connected with one end of resonance reactor L11 and the anode of thyristor T13 respectively; The other end of described resonance reactor L11 is connected with the anode of half-wave rectifier bridge D11 in one end of high pressure small capacitances C11 and rectification link respectively, and the described other end of low pressure bulky capacitor C10, the negative electrode of thyristor T13 are all connected with direct current cables or DC link with the other end of high pressure small capacitances C11;
Described low pressure bulky capacitor C10, thyristor T11, resonance reactor L11 and high pressure small capacitances C11 form low pressure bulky capacitor C10-thyristor T11-resonance reactor L11-high pressure small capacitances C11 closed-loop path; Described thyristor T13, resonance reactor L11 and high pressure small capacitances C11 form resonance reactor L11-thyristor T13-high pressure small capacitances C11 closed-loop path;
Described rectification link comprises half-wave rectifier bridge D11, smoothing reactor L12, support capacitor C12 and sustained diode 12; Wherein the negative electrode of half-wave rectifier bridge D11 is connected with one end of smoothing reactor L12 and the negative electrode of sustained diode 12 respectively; The other end of smoothing reactor L12 is connected with one end of support capacitor C12; One end of described support capacitor C12 is connected with the anode of thyristor T21 by direct current cables or DC link; The other end of described support capacitor C12 is connected with the other end of the electric capacity C20 of resonance step-down link and the anode of thyristor T23;
Described resonance step-down link comprises electric capacity C20, high pressure small capacitances C21, low pressure bulky capacitor C22, thyristor T21, thyristor T22, thyristor T23, reactor L21, reactor L22 and load resistance R21; One end of described electric capacity C20 is connected with the anode of thyristor T21; The negative electrode of described thyristor T21 is connected with one end of reactor L21 and the negative electrode of thyristor T23 respectively; The other end of described reactor L21 is connected with the anode of thyristor T22 and one end of high pressure small capacitances C21 respectively; The negative electrode of described thyristor T22 is connected with one end of reactor L22, and the other end of described reactor L22 is connected with one end of low pressure bulky capacitor C22 and one end of load resistance R21 respectively; The other end, the other end of low pressure bulky capacitor C22 of the other end of described electric capacity C20, the anode of thyristor T23, high pressure small capacitances C21 are all connected with direct current cables or DC link with the other end of load resistance R21;
Described high pressure small capacitances C21, thyristor T22, reactor L22 and low pressure bulky capacitor C22 form thyristor T22-reactor L22-low pressure bulky capacitor C22-high pressure small capacitances C21 closed-loop path;
Described high pressure small capacitances C21, thyristor T23 and reactor L21 form high pressure small capacitances C21-thyristor T23-reactor L21 closed-loop path;
Described electric capacity C20, thyristor T21, reactor L21 and capacitor C21 form electric capacity C20-thyristor T21-reactor L21-capacitor C21 closed-loop path;
The new energy electric field of at least one is connected with DC bus respectively by VSC rectifier; Described DC bus is connected with rectification link after being connected with described resonance step-up link again; Described rectification link is connected with resonance step-down link by direct current cables or DC link; Resonance step-down link is connected with VSC rectifier by DC bus.
2., as described in claim 1 for an implementation method for the resonance descending device of new-energy grid-connected, it is characterized in that, described implementation method comprises the steps:
Boosted by resonance step-up link after A, at least one new energy electric field are connected with DC bus respectively by VSC rectifier;
Magnitude of voltage after B, boosting is changed to positive to magnitude of voltage through rectification link;
C, described forward voltage values are transferred to after electrical network through the step-down of resonance step-down link by direct current cables or DC transmission line;
Direct voltage after D, step-down is connected with the VSC inverter of at least one by DC bus, is alternating voltage by direct voltage inversion;
E, described AC voltages transmission are to electrical network;
In described steps A, the boosting of resonance step-up link is realized by two mode of operations, comprises the steps:
I, implement first job pattern, described thyristor T13 conducting, described thyristor T11 turns off, and high pressure small capacitances C11 will vibrate along resonance reactor L11-thyristor T13 closed-loop path half period, to high pressure small capacitances C11 back discharge;
II, implement the second mode of operation, i.e. thyristor T11 conducting, thyristor T13 turns off, and now high pressure small capacitances C11 will vibrate along low pressure bulky capacitor C10-thyristor T11-resonance reactor L11 closed-loop path, to high pressure small capacitances C11 positive charge;
In described step C, the step-down of resonance step-down link is realized by three mode of operations, comprises the steps:
(1) implement first job pattern, i.e. thyristor T21 conducting, thyristor T22 and thyristor T23 turns off, and electric capacity C20 along thyristor T21-reactor L21-capacitor C21 closed-loop path vibration half period, will charge to high pressure small capacitances C21;
(2) implement second mode of operation, namely thyristor T22 closes, and thyristor T21 and thyristor T23 disconnects, and high pressure small capacitances C21, along thyristor T22-reactor L22-low pressure bulky capacitor C22 closed-loop path vibration half period, charges to low pressure bulky capacitor C22;
(3) the 3rd mode of operation is implemented, namely thyristor T23 closes, thyristor T21 and thyristor T22 disconnects, and reactor L21 to vibrate half period along high pressure small capacitances C21 and thyristor T23 closed-loop path, by the energy trasfer on reactor L21 on high pressure small capacitances C21.
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| CN104638930A (en) * | 2014-12-30 | 2015-05-20 | 国家电网公司 | High-voltage large-capacity DC/DC (Direct Current) converter suitable for DC power supply |
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| US8964413B2 (en) * | 2010-04-22 | 2015-02-24 | Flextronics Ap, Llc | Two stage resonant converter enabling soft-switching in an isolated stage |
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|---|
| "High-Power, Resonant DC/DC Converter for Integration of Renewable Sources";D. Jovcic et al.;《2009 IEEE Bucharest Power Tech Conference》;20090702;第1-6页 * |
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