CN103647297B - A kind of wind light mutual complementing power generation dispersion energy storage control circuit - Google Patents
A kind of wind light mutual complementing power generation dispersion energy storage control circuit Download PDFInfo
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- CN103647297B CN103647297B CN201310675137.2A CN201310675137A CN103647297B CN 103647297 B CN103647297 B CN 103647297B CN 201310675137 A CN201310675137 A CN 201310675137A CN 103647297 B CN103647297 B CN 103647297B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
Abstract
The invention discloses a kind of wind light mutual complementing power generation dispersion energy storage control circuit, comprise the maximal power tracing unit of wind light mutual complementing input unit, inverter unit, accumulator cell charging and discharging energy management unit, working mode control circuit and digitial controller unit, by manual knob or communication interface, circuit working is set in the pattern of generating electricity by way of merging two or more grid systems or from net mode of operation, when arranging circuit working in grid-connect mode, preferentially charged a battery by charging circuit, and provide energy to electrical network, when appearance is by when the short-time shadow such as blowing-out or black clouds causes solar energy exporting change larger in short-term, continued to keep exporting the firm power of electrical network by discharge loop by storage battery, reduce the momentary fluctuation that electrical network is exported, the present invention is suitable for not only needing to work in and net state but also need to work in the wind light mutual complementing power generation experiment from net operating state or dedicated system.
Description
Technical field
The present invention relates to wind light mutual complementing to generate electricity by way of merging two or more grid systems field, particularly relate to a kind of wind light mutual complementing power generation dispersion energy storage control circuit.
Background technology
Along with the development of energy-saving and emission-reduction and low-carbon economy, advocate the application of regenerative resource and clean energy resource energetically, various wind-powered electricity generation, photovoltaic power generation apparatus have been widely used in various engineering practice.As: surface wind power station, roof photovoltaic generation, BIPV generating, family photovoltaic power generation apparatus etc.Along with the application of regenerative resource is more and more extensive, the scope that photovoltaic generation is applied in other various electric equipments is also more and more wider.
Photovoltaic and wind-electricity integration inverter are then the direct currents directly will inputted, and inversion is that electrical network delivered to by alternating current.Grid type inverter does not have secondary battery unit, and wind-powered electricity generation and photovoltaic generation have certain unsteadiness, and it depends on the size of wind-force and solar radiation quantity.When wind-force and solar radiation change, the grid-connected current of combining inverter changes, and this disturbs the stable operation of electrical network.When particularly having the transient state solar radiation changes such as blowing-out in short-term, in short-term black clouds greatly in weather, it is zero again to normal output that the output energy of wind light mutual complementing combining inverter produces from normally outputting in short-term, has had a strong impact on the stable operation of electrical network.The regenerative resource interconnection technology of research band energy storage link becomes the means addressed this problem.
Energy storage research mainly centralized to the grid-connected energy storage of regenerative resource at present, as jumbo lithium battery or sodium-sulfur battery energy storage.This centralized energy storage, because the series, parallel unit of battery pack is many, is difficult to the consistency keeping each battery cell, various energy-storage battery group due to each cell operation state difference comparatively large, the excess temperature caused and battery explosion problem are difficult to avoid completely.Therefore, be necessary that proposing a kind of technological means solves the problems referred to above in fact.
Summary of the invention
For overcoming the deficiency that above-mentioned prior art exists, the object of the present invention is to provide a kind of wind light mutual complementing power generation to disperse energy storage control circuit, it can when power supply grid be stablized, unnecessary energy can also be generated electricity by way of merging two or more grid systems while supply energy-storage battery, at wind-force and when changing greatly in the intensity of illumination short time, can to and network energy peak load shifting, be beneficial to and regulate grid-connected stability.
For reaching above-mentioned and other object, the present invention proposes a kind of wind light mutual complementing power generation dispersion energy storage control circuit, comprising:
The storage battery of decentralized configuration;
The maximal power tracing unit of wind light mutual complementing input, its input is given a dinner for a visitor from afar light Complementary input structure, by the current/voltage of test wind light mutual complementing input and output, under the control of digitial controller unit, makes the power of wind light mutual complementing input and output maximum;
Accumulator cell charging and discharging energy management unit, connects this storage battery, to complete storage battery electric energy and the conversion between electrical network electric energy and wind light mutual complementing power generation electric energy three;
Inverter unit, is converted to the output direct current of this accumulator cell charging and discharging energy management unit and generates electricity by way of merging two or more grid systems or from the alternating current needed for net work;
Mode select signal setting module, produces pattern setup control signal;
Output circuit switching controls module, selects the alternating current produced by inverter unit to be connected to electrical network still from net load;
Digitial controller unit, produce the maximal power tracing unit of this wind light mutual complementing input, this accumulator cell charging and discharging energy management unit and the control signal needed for this inverter unit, under the pattern setup control signal controlling of this mode select signal setting module, control this output circuit switching controls module switching.
Further, the maximal power tracing unit of this wind light mutual complementing input comprises the booster circuit and current transformer (CS1) and voltage transformer (VS2) that are made up of magicore inductor, transistor (S1), diode (D1); The input current that this current transformer (CS1) detects wind light mutual complementing input delivers to this digitial controller unit, the input voltage that this voltage transformer (VS2) detects wind light mutual complementing input delivers to this digitial controller unit, obtain maximum power point by the product of the output voltage and output current that compare wind light mutual complementing input, the output of this digitial controller unit during selection maximum power is as this transistor of Duty ratio control (S1).
Further, this accumulator cell charging and discharging energy management unit is two-way DC/DC circuit, comprise a magicore inductor (L2), two transistors (S2 and S3) of operating state complementation, DC energy storage electric capacity (C2) and voltage sensor (VS1), when being operated in charging modes, this magicore inductor (L2) and transistor (S2 and S3) form buck circuit, energy from photovoltaic cell is after this maximal power tracing unit, again by this buck circuit, to this charge in batteries; When being operated in discharge mode, this magicore inductor and this crystal (S2 and S3) form booster circuit, and this storage battery energy, through this booster circuit, discharges to this DC energy storage electric capacity and this inverter unit; Loop, when grid-connected work, by this accumulator cell charging and discharging loop, can maintain the stable of power output of generating electricity by way of merging two or more grid systems.
Further, this inverter unit comprises four transistors (S4, S5, S6, S7) and protection diode thereof, and it is controlled by the pulse-width signal of this digitial controller unit.
Further, manually knob or key switch carry out the operating state of setting device to this mode select signal setting module; When this manual knob or key switch connect high level signal, this control circuit works in and net state; When this manual knob or key switch connect low level signal, this control circuit works in under net operating state.
Further, this output circuit switching controls module sets the connection status of load by two groups of double-point double-throw switchs (K2 and K3), load voltage is gathered by voltage sensor (VS3), carry out control logic, when this manual knob or key switch connect high level signal, and when this load voltage is non-vanishing, enable control signal exports as " 1 ", this control circuit normally works in the state of generating electricity by way of merging two or more grid systems, and makes double-point double-throw switch (K2) switch this control circuit to export the end that gets access to grid to; When this manual knob or key switch connect low level signal, and this load voltage is when being zero, enable control signal S exports as " 0 ", and this control circuit normally works in from net operating state, and makes double-point double-throw switch (K3) switch this control circuit to export to and connect electricity consumption load end.
Further, this digitial controller unit comprises two adders (406, 407), comparator unit (408), dead zone function circuit, two pwm control signal drive circuits (401, 402), adc circuit, numeral PI_I adjuster, numeral PI_V adjuster, current transformer (CS2) and voltage transformer (VS3), when control module is selected to generate electricity by way of merging two or more grid systems pattern, this digitial controller unit produces the in-phase input end that output current reference signal receives this adder (407), this current transformer (CS2) detects the output current of this inverter unit, this output current is transported to the inverting input of this adder (407), by this digital PI_I adjuster, produce the current error signal after amplifying, this current error signal delivers to the in-phase input end of this comparator unit 408, compared with the triangular signal produced with this digitial controller unit that the inverting input of this comparator unit inputs, after dead zone function and phase place adjustment drive, this digitial controller unit exports corresponding pulse width modulating signal and controls this inverter unit by Current adjustment rule.
Further, when control module is selected from net operating state, this digitial controller unit produces the in-phase input end that reference voltage signal receives this adder (406) in this digitial controller unit, this voltage transformer (VS3) detects the output voltage of this inverter unit, this output voltage is transported to the inverting input of this adder (406), the current error signal after amplifying is produced by this digital PI_V adjuster of this digitial controller unit, this current error signal delivers to the in-phase input end of this comparator unit, compared with the triangular signal produced with this digitial controller unit that the inverting input of this comparator unit inputs, after dead zone function and phase place adjustment drive, this digitial controller unit exports corresponding pulse width modulating signal and controls this inverter unit by voltage-regulation rule.
Further, all crystals pipe is insulated gate bipolar transistor.
Compared with prior art, a kind of wind light mutual complementing power generation dispersion of the present invention energy storage control circuit, achieve a kind of wind light mutual complementing power generation dispersion energy storage control circuit with stored energy link, it can when power supply grid be stablized, unnecessary energy can also be generated electricity by way of merging two or more grid systems while supply energy-storage battery, at wind-force and when changing greatly in the intensity of illumination short time, can to and network energy peak load shifting, be beneficial to and regulate grid-connected stability.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of wind light mutual complementing power generation dispersion of the present invention energy storage control circuit;
Fig. 2 is the circuit diagram of digitial controller unit in present pre-ferred embodiments;
Fig. 3 is the functional structure block diagram of a kind of wind light mutual complementing power generation dispersion of the present invention energy storage control circuit.
Embodiment
Below by way of specific instantiation and accompanying drawings embodiments of the present invention, those skilled in the art can understand other advantage of the present invention and effect easily by content disclosed in the present specification.The present invention is also implemented by other different instantiation or is applied, and the every details in this specification also can based on different viewpoints and application, carries out various modification and change not deviating under spirit of the present invention.
Fig. 1 is the structural representation of a kind of wind light mutual complementing power generation dispersion of the present invention energy storage control circuit, and Fig. 2 is the circuit diagram of digitial controller unit in present pre-ferred embodiments.Please with reference to Fig. 1 and Fig. 2, a kind of wind light mutual complementing power generation dispersion of the present invention energy storage control circuit, comprising: the storage battery 70 of the maximal power tracing unit 10 that wind light mutual complementing inputs, accumulator cell charging and discharging energy management unit 20, inverter unit 30, digitial controller unit 40, mode select signal setting module 50, output circuit switching controls module 60 and decentralized configuration.
Wind-powered electricity generation inputs with photovoltaic module wind light mutual complementing after external rectifier, wind light mutual complementing input is connected to the maximal power tracing unit 10 of wind light mutual complementing input together, the maximal power tracing unit 10 of wind light mutual complementing input is by testing the current/voltage of wind light mutual complementing input and output, under the control of digitial controller unit 40, make the power of wind light mutual complementing input and output maximum, it comprises one by magicore inductor L1, IGBT(InsulatedGateBipolarTransistor, insulated gate bipolar transistor) (S1) and fast booster circuit and the voltage transformer VS2 recovering power diode D1 composition, current transformer CS1, the output current that current transformer (CS1) detects wind light mutual complementing input is delivered in digitial controller unit 40, and the output voltage that voltage transformer (VS2) detects photovoltaic cell is delivered in digitial controller unit 40, obtain maximum power point by the product of the output voltage and output current that compare wind light mutual complementing input, the output of the digitial controller unit 40 during selection maximum power is as Duty ratio control IGBT(S1), realize the object of photovoltaic maximal power tracing.
Accumulator cell charging and discharging energy management unit 20 is for completing storage battery electric energy and the conversion between electrical network electric energy and wind light mutual complementing power generation electric energy three, it is a two-way DC/DC circuit, it is by a magicore inductor (L2), two each and every one IGBT(S2 and S3 of operating state complementation), DC energy storage electric capacity (C2) and voltage sensor (VS1) composition, when being operated in charging modes, magicore inductor L2, IGBT(S2) and IGBT(S3) buck circuit is formed, energy from photovoltaic cell is after maximal power tracing unit 10, pass through buck circuit again, accumulators 70 charges, when being operated in discharge mode, magicore inductor L2, IGBTS2 and IGBTS3 form booster circuit, and storage battery 70 energy, through booster circuit, discharges to DC energy storage electric capacity C2 and inverter unit 30, loop, when grid-connected work, by accumulator cell charging and discharging loop, can maintain the stable of power output of generating electricity by way of merging two or more grid systems.
Inverter unit 30 to generate electricity by way of merging two or more grid systems or from alternating current needed for net work for being converted to by the output direct current of accumulator cell charging and discharging energy management unit 20; be made up of IGBT pipe S4-S7 and protection diode thereof, it is controlled by the pulse-width signal PWM of digitial controller unit 40.
Control signal needed for the maximal power tracing unit 10 that digitial controller unit 40 inputs for generation of wind light mutual complementing, accumulator cell charging and discharging energy management unit 20 and control inverter unit 30, controls output circuit switching controls module 60 switching under the pattern setup control signal controlling of mode select signal setting module 50.In present pre-ferred embodiments, digitial controller unit comprises adder 406/407, comparator 408, dead zone function circuit 409, pwm control signal drive circuit 401/402, adc circuit 403, digital PI_V adjuster 404, digital PI_I adjuster 405, current transformer (CS2), voltage transformer (VS3) and reference voltage current generating circuit.
Mode of operation is selected to be made up of mode select signal setting module 50 and output circuit switching controls module 60, jointly controls this control circuit and runs on the pattern of generating electricity by way of merging two or more grid systems or from network operation pattern.Mode select signal setting module 50 is for generation of pattern setup control signal, and it comprises a rotary switch K1, the operating state of mode select signal setting module 50 manually knob K1 setup control circuit; When K1 be threaded to connect high level 5V signal time, device works in and net state; When K1 be threaded to connect low level 0V signal time, control circuit works in from (UPS mode of operation) under net state, and certain rotary switch K1 can be also key switch, and the present invention is not as limit.
The alternating current that inverter unit 30 produces is connected to electrical network still from net load for selecting by output circuit switching controls module 60, it comprises two groups of double-point double-throw switchs, output circuit switching controls module 60 sets the connection status of load by double-point double-throw switch K2, load voltage Uf is gathered by voltage sensor (VS3), carry out logic control, K1 is only had to connect high level 5V signal, and Uf non-vanishing time, enable control signal S exports as " 1 ", device normally works in the state of generating electricity by way of merging two or more grid systems, and makes K switch 2 switching device shifter export the end that gets access to grid to; When K1 connects low level 0V signal, and when Uf is zero, enable control signal S exports as " 0 ", and device normally works in from net operating state (UPS mode of operation), and K switch 3 switching device shifter is exported to connect electricity consumption load end.
When control section is selected to generate electricity by way of merging two or more grid systems pattern, controller produces the in-phase input end ("+" terminal) of adder 407 in output current reference signal Iref to digitial controller unit 40, current transformer (CS2) detects the output current If of inverter unit, be transported to the inverting input ("-" terminal) of adder 407 in digitial controller unit 40, by the digital PI_I adjuster 405 of controlling unit, produce the current error Xin ⊿ I after amplifying, ⊿ I delivers to the in-phase input end ("+" terminal) of comparator 408, compared with the triangle carrier signal that the digitial controller unit inputted with the inverting input ("-" terminal) of comparator 408 produces, controller output signal is a series of amplitude is 3.3V or 0V, width is pulse PWM1 and the PWM2 of sinusoidal rule change, PWM1 and PWM2 is drive singal, be used for by Current adjustment rule control inverter unit 30.
When control section is selected from net mode of operation, controller produces the in-phase input end ("+" terminal) of adder 406 in output voltage reference signal Uref to digital control unit, voltage transformer (VS3) detects output voltage Uf, be transported to the inverting input ("-" terminal) of adder 406 in digitial controller unit 40, by the digital PI_V adjuster 404 of controlling unit, produce the current error Xin ⊿ U after amplifying, ⊿ ⊿ U delivers to the in-phase input end ("+" terminal) of comparator 408, compared with the triangle carrier signal that the digitial controller unit inputted with the inverting input ("-" terminal) of comparator 408 produces, controller output signal is a series of amplitude is 3.3V or 0V, width is pulse PWM1 and the PWM2 of sinusoidal rule change, PWM1 and PWM2 is drive singal, be used for controlling control inverter unit 30 by voltage-regulation rule.
Below cooperation Fig. 2 is described further the digital control unit 40 of the present invention.For single phase circuit, through over-sampling, the electric current I f of A phase inductance sends into digitial controller unit from the AD sampling channel ADC6 of digitial controller unit, and A phase output voltage Uf sends into digitial controller from the AD sampling channel ADC10 of digitial controller unit.Controlled by outer voltage and current inner loop pi regulator, through drive singal S4 and the S5 of the full comparing unit output A phase of digitial controller.If be applied to single phase system, then only need A phase drive singal, if need to be applied to three-phase system, the Setting signal sin θ phase shift 120 degree of control section with 240 degree after, B phase SPWM drive singal S6 and the S7 differing 120 degree with A phase can be obtained equally, differ C phase SPWM drive singal S8 and the S9 of 240 degree with A phase.
Fig. 3 is the functional structure block diagram of a kind of wind light mutual complementing power generation dispersion of the present invention energy storage control circuit.When system power supply is normal, control circuit uses as combining inverter, direct current is become alternating current and is transported in electrical network and goes.First be the maximal power tracing circuit (maximum power output) of wind light mutual complementing input, this is boost chopper.Storage battery is connected to DC bus by a bidirectional, dc DC converter (two-way DC/DC translation circuit), and when battery tension is too low, the direct current of input will be charged the battery by maximal power tracing unit and reversible transducer.The energy exported by after inverter (DC/AC inverter circuit), becomes alternating current after DC bus.Now, control circuit exports all receives electrical network with load, and control mode adopts the current loop control of Fig. 2 to be main.
When occurring causing solar energy exporting change larger by short-time shadow such as black clouds, being continued to keep the constant output to electrical network by discharge loop by storage battery, reducing the momentary fluctuation of electrical network.Storage battery is connected to DC bus by a bidirectional, dc DC converter (two-way DC/DC translation circuit), to give energy by after inverter (two-way DC/DC translation circuit), become alternating current by reversible transducer.Now, device exports all receives electrical network with load, and control mode also adopts the current loop control of Fig. 3 to be main.
When system blackout, device output switching, to load end, utilizes the energy of wind light generation and battery stores, and supply is for electric loading.Now, photovoltaic and storage battery are connected to DC bus by bidirectional, dc DC converter (two-way DC/DC translation circuit), after inverter (two-way DC/DC translation circuit), become alternating current.Now, control circuit exports and is all connected with load, and all depart from electrical network, control mode adopts the Voltage loop of Fig. 2 to control.
In sum, a kind of wind light mutual complementing power generation dispersion of the present invention energy storage control circuit, achieve a kind of wind light mutual complementing power generation dispersion energy storage control circuit with stored energy link, it can when power supply grid be stablized, unnecessary energy can also be generated electricity by way of merging two or more grid systems while supply energy-storage battery, at wind-force and when changing greatly in the intensity of illumination short time, can to and network energy peak load shifting, be beneficial to and regulate grid-connected stability.
Compared with prior art, tool of the present invention has the following advantages:
(1) adopt in combining inverter side the storage battery of low capacity to eliminate grid-connected current variation large in short-term, realize the adjustable gently of wind-powered electricity generation and grid-connected energy; And existing regenerative resource adopts the energy-storage battery concentrated to realize and mild (peak load shifting) of network energy, this is unfavorable for system effectiveness optimization, and centralized jumbo battery pack connection in series-parallel number is too much, easily makes battery cell operating state generation difference and cause heating, blast.
(2) there is grid-connected detection and switching over function.When voltage sensor senses is normal to mains supply, K2, K3 switch closes, and control circuit exports all receives electrical network with load, and at this moment, wind light mutual complementing power generation is except meeting load needs, and unnecessary energy can directly be surfed the Net; When voltage sensor senses is abnormal to mains supply, K2 switch disconnects, and K3 closes, and control circuit exports and is connected with load, disengaging electrical network, at this moment, is exactly single from net function of supplying power.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any those skilled in the art all without prejudice under spirit of the present invention and category, can carry out modifying to above-described embodiment and change.Therefore, the scope of the present invention, should listed by claims.
Claims (6)
1. a wind light mutual complementing power generation dispersion energy storage control circuit, is characterized in that, comprising:
The storage battery of decentralized configuration;
The maximal power tracing unit of wind light mutual complementing input, its input is given a dinner for a visitor from afar light Complementary input structure, by the current/voltage of test wind light mutual complementing input and output, under the control of digitial controller unit, makes the power of wind light mutual complementing input and output maximum;
Accumulator cell charging and discharging energy management unit, connects this storage battery, to complete storage battery electric energy and the conversion between electrical network electric energy and wind light mutual complementing power generation electric energy three;
Inverter unit, is converted to the output direct current of this accumulator cell charging and discharging energy management unit and generates electricity by way of merging two or more grid systems or from the alternating current needed for net work;
Mode select signal setting module, produces pattern setup control signal;
Output circuit switching controls module, selects the alternating current produced by inverter unit to be connected to electrical network still from net load;
Digitial controller unit, produce the maximal power tracing unit of this wind light mutual complementing input, this accumulator cell charging and discharging energy management unit and the control signal needed for this inverter unit, under the pattern setup control signal controlling of this mode select signal setting module, control this output circuit switching controls module switching;
This output circuit switching controls module sets the connection status of load by two groups of double-point double-throw switchs (K2 and K3), load voltage is gathered by voltage sensor (VS3), carry out control logic, this mode select signal setting module manually knob or key switch carrys out the operating state of setting device, when this manual knob or key switch connect high level signal, and this load voltage non-vanishing time, enable control signal exports as " 1 ", this wind light mutual complementing power generation dispersion energy storage control circuit normally works in the state of generating electricity by way of merging two or more grid systems, and make double-point double-throw switch (K2) switch this wind light mutual complementing power generation dispersion energy storage control circuit export the end that gets access to grid to, when this manual knob or key switch connect low level signal, and this load voltage is when being zero, enable control signal S exports as " 0 ", this wind light mutual complementing power generation dispersion energy storage control circuit normally works in from net operating state, and makes double-point double-throw switch (K3) switch this wind light mutual complementing power generation dispersion energy storage control circuit to export to and connect electricity consumption load end.
2. a kind of wind light mutual complementing power generation dispersion energy storage control circuit as claimed in claim 1, is characterized in that: the maximal power tracing unit of this wind light mutual complementing input comprises the booster circuit and current transformer (CS1) and voltage transformer (VS2) that are made up of magicore inductor, transistor (S1), diode (D1); The input current that this current transformer (CS1) detects wind light mutual complementing input delivers to this digitial controller unit, the input voltage that this voltage transformer (VS2) detects wind light mutual complementing input delivers to this digitial controller unit, obtain maximum power point by the product of the output voltage and output current that compare wind light mutual complementing input, the output of this digitial controller unit during selection maximum power is as this transistor of Duty ratio control (S1).
3. a kind of wind light mutual complementing power generation dispersion energy storage control circuit as claimed in claim 2, it is characterized in that: this accumulator cell charging and discharging energy management unit is two-way DC/DC circuit, comprise a magicore inductor (L2), two transistors (S2 and S3) of operating state complementation, DC energy storage electric capacity (C2) and voltage sensor (VS1), when being operated in charging modes, this magicore inductor (L2) and transistor (S2 and S3) form buck circuit, energy from photovoltaic cell is after this maximal power tracing unit, again by this buck circuit, to this charge in batteries, when being operated in discharge mode, this magicore inductor and this crystal (S2 and S3) form booster circuit, and this storage battery energy, through this booster circuit, discharges to this DC energy storage electric capacity and this inverter unit, when grid-connected work, by this accumulator cell charging and discharging energy management unit, the stable of power output of generating electricity by way of merging two or more grid systems can be maintained.
4. a kind of wind light mutual complementing power generation dispersion energy storage control circuit as claimed in claim 3; it is characterized in that: this inverter unit comprises four transistors (S4, S5, S6, S7) and protection diode thereof, and it is controlled by the pulse-width signal of this digitial controller unit.
5. a kind of wind light mutual complementing power generation dispersion energy storage control circuit as claimed in claim 1, it is characterized in that: this digitial controller unit comprises two adders (406, 407), comparator unit (408), dead zone function circuit, two pwm control signal drive circuits (401, 402), adc circuit, numeral PI_I adjuster, numeral PI_V adjuster, current transformer (CS2) and voltage transformer (VS3), when output circuit switching controls model choice generates electricity by way of merging two or more grid systems pattern, this digitial controller unit produces the in-phase input end that output current reference signal receives this adder (407), this current transformer (CS2) detects the output current of this inverter unit, this output current is transported to the inverting input of this adder (407), by this digital PI_I adjuster, produce the current error signal after amplifying, this current error signal delivers to the in-phase input end of this comparator unit 408, compared with the triangular signal produced with this digitial controller unit that the inverting input of this comparator unit inputs, after dead zone function and phase place adjustment drive, this digitial controller unit exports corresponding pulse width modulating signal and controls this inverter unit by Current adjustment rule.
6. a kind of wind light mutual complementing power generation dispersion energy storage control circuit as claimed in claim 5, it is characterized in that: when output circuit switching controls model choice is from net operating state, this digitial controller unit produces the in-phase input end that reference voltage signal receives this adder (406) in this digitial controller unit, this voltage transformer (VS3) detects the output voltage of this inverter unit, this output voltage is transported to the inverting input of this adder (406), the current error signal after amplifying is produced by this digital PI_V adjuster of this digitial controller unit, this current error signal delivers to the in-phase input end of this comparator unit, compared with the triangular signal produced with this digitial controller unit that the inverting input of this comparator unit inputs, after dead zone function and phase place adjustment drive, this digitial controller unit exports corresponding pulse width modulating signal and controls this inverter unit by voltage-regulation rule.
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| CN110336454A (en) * | 2019-08-09 | 2019-10-15 | 博士德科技(江苏)有限公司 | A kind of control method having control model priority facility and power supply |
| CN115395554B (en) * | 2022-04-22 | 2023-09-22 | 深圳市金典电子科技有限公司 | Complementary power generation system based on solar energy and commercial power and control method |
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| CN102170150A (en) * | 2010-02-26 | 2011-08-31 | 三洋电机株式会社 | Power storage system |
| CN102055368A (en) * | 2010-12-20 | 2011-05-11 | 江苏省电力公司南京供电公司 | 100-KVA micro-grid energy storage bidirectional converter |
| CN102710005A (en) * | 2012-06-04 | 2012-10-03 | 国电南瑞科技股份有限公司 | Power supply method for grid-connected and off-grid dual-purpose wind and light complement power generation system |
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