CN103647297A - Wind-solar complementary power generation distributed energy storage control circuit - Google Patents
Wind-solar complementary power generation distributed energy storage control circuit Download PDFInfo
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- CN103647297A CN103647297A CN201310675137.2A CN201310675137A CN103647297A CN 103647297 A CN103647297 A CN 103647297A CN 201310675137 A CN201310675137 A CN 201310675137A CN 103647297 A CN103647297 A CN 103647297A
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Abstract
The invention discloses a wind-solar complementary power generation distributed energy storage control circuit which comprises a maximum power tracking unit of wind-solar complementary input, an inverter unit, a storage battery charging and discharging energy management unit, a working mode control circuit and a digital controller unit. The circuit can be set to work in a grid-connected power generation mode or an off-grid work mode through a manual knob or a communication interface. When the circuit is set to work in a grid-connected mode, a storage battery is charged with priority through a charging circuit, and energy is provided for a grid. When the output change of solar energy is large caused by wind stop in a short time or short time shadow such as cloud and the like, the storage battery maintains the constant output power to the grid through a discharging loop, and the momentary fluctuation of grid output is reduced. The wind-solar complementary power generation distributed energy storage control circuit is suitable for a wind-solar complementary power generation experiment or special system which is needed to work in a grid-connected state and an off-grid work mode.
Description
Technical field
The present invention relates to the wind light mutual complementing field that generates electricity by way of merging two or more grid systems, particularly relate to a kind of wind light mutual complementing power generation and disperse energy storage control circuit.
Background technology
Along with the development of energy-saving and emission-reduction and low-carbon economy, advocate energetically the application of regenerative resource and clean energy resource, various wind-powered electricity generations, photovoltaic power generation apparatus have been widely used in various engineering practices.As: surface wind power station, roof photovoltaic generation, BIPV generating, photovoltaic power generation apparatus etc. for family.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 direct by the direct current of input, and inversion is that alternating current is delivered to electrical network.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 has disturbed the stable operation of electrical network.Particularly in weather, have blowing-out in short-term, the transient state solar radiation such as black clouds changes greatly in short-term in the situation that, it is zero again to normal output that the output energy of wind light mutual complementing combining inverter produces from normally outputing in short-term, has had a strong impact on the stable operation of electrical network.Research becomes with the regenerative resource interconnection technology of energy storage link the means that address this problem.
To the grid-connected energy storage of regenerative resource, be mainly centralized energy storage research 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 keep the consistency of each battery cell, and various energy-storage battery groups are because each cell operation state difference is larger, and the excess temperature causing and battery explosion problem are difficult to avoid completely.Therefore, being necessary to propose a kind of technological means solves the problems referred to above in fact.
Summary of the invention
The deficiency existing for overcoming above-mentioned prior art, the present invention's object is to provide a kind of wind light mutual complementing power generation to disperse energy storage control circuit, it can be when power supply grid be stablized, when supplying with energy-storage battery, unnecessary energy can also be generated electricity by way of merging two or more grid systems, in wind-force and intensity of illumination, in the short time, change when larger, 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 and disperses energy storage control circuit, comprising:
The storage battery of decentralized configuration;
The maximal power tracing unit of wind light mutual complementing input, its input light Complementary input structure of giving a dinner for a visitor from afar, 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 the conversion between storage battery electric energy and 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 to generate electricity by way of merging two or more grid systems or from the required alternating current of net work;
Mode select signal setting module, produces pattern setup control signal;
Output circuit switching controls module, selects the alternating current that inverter unit is produced to be connected to electrical network still from net load;
Digitial controller unit, produce maximal power tracing unit, this accumulator cell charging and discharging energy management unit and the required control signal of this inverter unit of this wind light mutual complementing input, 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 booster circuit and current transformer (CS1) and the voltage transformer (VS2) being comprised of magicore inductor, transistor (S1), diode (D1); This current transformer (CS1) detects the input current of wind light mutual complementing input and delivers to this digitial controller unit, this voltage transformer (VS2) detects the input voltage of wind light mutual complementing input and delivers to this digitial controller unit, by the output voltage of relatively wind light mutual complementing input and the product of output current, obtain maximum power point, the output of this digitial controller unit while selecting 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, two transistors (S2 and S3), DC energy storage electric capacity (C2) and the voltage sensor (VS1) that comprise a magicore inductor (L2), operating state complementation, when being operated in charging modes, this magicore inductor (L2) forms buck circuit with transistor (S2 and S3), the energy coming from photovoltaic cell is behind this maximal power tracing unit, by this buck circuit, give this charge in batteries again; 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, is given this DC energy storage electric capacity and the electric discharge of this inverter unit; Loop, when grid-connected work, by this accumulator cell charging and discharging loop, can maintain the stable of the 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, this mode select signal setting module carrys out the operating state of setting device by manual knob or key switch; 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 under net operating state.
Further, this output circuit switching controls module is set the connection status of load by two groups of double-point double-throw switchs (K2 and K3), by voltage sensor (VS3), gather load voltage, carry out control logic, when this manual knob or key switch connect high level signal, and this load voltage is when non-vanishing, enables control signal and is output 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 when this load voltage is zero, enable control signal S and be output as " 0 ", 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 band control 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 output current reference signal and receives the in-phase input end of 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 numeral PI_I adjuster, produce the current error signal after amplifying, this current error signal is delivered to the in-phase input end of this comparator unit 408, the triangular signal that this digitial controller unit of inputting with the inverting input of this comparator unit produces is compared, after dead band control and phase place adjustment driving, this digitial controller unit is exported corresponding pulse width modulating signal and is regulated rule to control this inverter unit by electric current.
Further, when control module is selected from net operating state, this digitial controller unit produces the in-phase input end that reference voltage signal is received 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), this numeral PI_V adjuster by this digitial controller unit produces the current error signal after amplifying, this current error signal is delivered to the in-phase input end of this comparator unit, the triangular signal that this digitial controller unit of inputting with the inverting input of this comparator unit produces is compared, after dead band control and phase place adjustment driving, this digitial controller unit is exported corresponding pulse width modulating signal and is controlled 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 of the present invention disperses energy storage control circuit, realize a kind of wind light mutual complementing power generation with stored energy link and disperseed energy storage control circuit, it can be when power supply grid be stablized, when supplying with energy-storage battery, unnecessary energy can also be generated electricity by way of merging two or more grid systems, in wind-force and intensity of illumination, in the short time, change when larger, 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 that a kind of wind light mutual complementing power generation of the present invention disperses energy storage control circuit;
Fig. 2 is the circuit diagram of digitial controller unit in preferred embodiment of the present invention;
Fig. 3 is the functional structure block diagram that a kind of wind light mutual complementing power generation of the present invention disperses energy storage control circuit.
Embodiment
Below, by specific instantiation 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 also can be implemented or be applied by other different instantiation, and the every details in this specification also can be based on different viewpoints and application, carries out various modifications and change not deviating under spirit of the present invention.
Fig. 1 is the structural representation that a kind of wind light mutual complementing power generation of the present invention disperses energy storage control circuit, and Fig. 2 is the circuit diagram of digitial controller unit in preferred embodiment of the present invention.Please with reference to Fig. 1 and Fig. 2, a kind of wind light mutual complementing power generation of the present invention disperses energy storage control circuit, comprising: the storage battery 70 of maximal power tracing unit 10, 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 the decentralized configuration of wind light mutual complementing input.
Wind-powered electricity generation is inputted 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 the current/voltage of test 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 that one by magicore inductor L1, IGBT(Insulated Gate Bipolar Transistor, insulated gate bipolar transistor) (S1) and soon recover booster circuit and the voltage transformer VS2 that power diode D1 forms, current transformer CS1, current transformer (CS1) detects the output current of wind light mutual complementing input and delivers in digitial controller unit 40, and voltage transformer (VS2) detects the output voltage of photovoltaic cell and delivers in digitial controller unit 40, output voltage by relatively wind light mutual complementing input obtains maximum power point with the product of output current, and 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 the conversion between storage battery electric energy and 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) form, when being operated in charging modes, magicore inductor L2, IGBT(S2) and IGBT(S3) form buck circuit, the energy coming from photovoltaic cell is behind maximal power tracing unit 10, pass through again buck circuit, accumulators 70 chargings, when being operated in discharge mode, magicore inductor L2, IGBTS2 and IGBTS3 form booster circuit, and storage battery 70 energy, through booster circuit, are given DC energy storage capacitor C 2 and inverter unit 30 electric discharges, loop, when grid-connected work, by accumulator cell charging and discharging loop, can maintain the stable of the power output of generating electricity by way of merging two or more grid systems.
Inverter unit 30 generates electricity by way of merging two or more grid systems or from the required alternating current of net work for the output direct current of accumulator cell charging and discharging energy management unit 20 is converted to; IGBT pipe S4-S7 and protection diode thereof, consist of, it is controlled by the pulse-width signal PWM of digitial controller unit 40.
Output circuit switching controls module 60 switchings, for generation of maximal power tracing unit 10, the required control signal of accumulator cell charging and discharging energy management unit 20 and control inverter unit 30 of wind light mutual complementing input, are controlled in digitial controller unit 40 under the pattern setup control signal controlling of mode select signal setting module 50.In preferred embodiment of the present invention, digitial controller unit comprises adder 406/407, comparator 408, dead band control 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 comprised of mode select signal setting module 50 and output circuit switching controls module 60, jointly controls that this control circuit 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, and mode select signal setting module 50 is by the operating state of manual knob K1 setup control circuit; When K1 is threaded to while connecing high level 5V signal, device works in and net state; When K1 is threaded to while connecing low level 0V signal, control circuit works under net state (UPS mode of operation), and rotary switch K1 can be also key switch certainly, and the present invention is not as limit.
Output circuit switching controls module 60 is connected to electrical network still from net load for the alternating current of selecting inverter unit 30 to produce, it comprises two groups of double-point double-throw switchs, output circuit switching controls module 60 is set the connection status of load by double-point double-throw switch K2, by voltage sensor (VS3), gather load voltage Uf, carry out logic control, only have K1 to connect high level 5V signal, and when Uf is non-vanishing, enable control signal S and be output 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 shifters export the end that gets access to grid to; When K1 connects low level 0V signal, and Uf is while being zero, enables control signal S and is output as " 0 ", and device normally works in from net operating state (UPS mode of operation), and K switch 3 switching device shifters 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 output current reference signal Iref to the in-phase input end ("+" terminal) of adder 407 in 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, the triangular carrier signal that the digitial controller unit of inputting with the inverting input ("-" terminal) of comparator 408 produces is compared, controller output signal is that a series of amplitudes are 3.3V or 0V, width is pulse PWM1 and the PWM2 that sinusoidal rule changes, PWM1 and PWM2 are for driving signal, be used for regulating rule control inverter unit 30 by electric current.
When control section is selected from net mode of operation, controller produces output voltage reference signal Uref to the in-phase input end ("+" terminal) of adder 406 in digital control unit, voltage transformer (VS3) detects output voltage U f, 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, the triangular carrier signal that the digitial controller unit of inputting with the inverting input ("-" terminal) of comparator 408 produces is compared, controller output signal is that a series of amplitudes are 3.3V or 0V, width is pulse PWM1 and the PWM2 that sinusoidal rule changes, PWM1 and PWM2 are for driving signal, be used for controlling control inverter unit 30 by voltage-regulation rule.
Below cooperation Fig. 2 is described further the present invention's digital control unit 40.Take single phase circuit as example, and 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 U f sends into digitial controller from the AD sampling channel ADC10 of digitial controller unit.By outer voltage and current inner loop pi regulator, controlled, through the full comparing unit of digitial controller, export driving signal S4 and the S5 of A phase.If be applied to single phase system, only need A to drive mutually signal, if need to be applied to three-phase system, after given signal sin θ phase shift 120 degree of control section are spent with 240, B phase SPWM driving signal S6 and the S7 that can obtain equally differing with A 120 degree, the C phase SPWM that differs 240 degree with A drives signal S8 and S9.
Fig. 3 is the functional structure block diagram that a kind of wind light mutual complementing power generation of the present invention disperses energy storage control circuit.When system power supply is normal, control circuit uses as combining inverter, direct current is become to alternating current and be transported in electrical network and go.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 charge the battery by maximal power tracing unit and reversible transducer.The energy of output by after inverter (DC/AC inverter circuit), becomes alternating current after DC bus.Now, control circuit output is all received electrical network with load, and it is main that control mode adopts the current loop control of Fig. 2.
When occurring that shade causes solar energy exporting change larger in short-term by black clouds etc., by storage battery, by discharge loop, continues the constant output of maintenance to electrical network, reduce 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), by reversible transducer give by energy by inverter (two-way DC/DC translation circuit) after, become alternating current.Now, device output is all received electrical network with load, and it is main that control mode also adopts the current loop control of Fig. 3.
When system blackout, device output switching, to load end, utilizes the energy of wind light generation and battery stores, supplies with 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 output is all connected with load, all departs from electrical network, and control mode adopts the Voltage loop of Fig. 2 to control.
In sum, a kind of wind light mutual complementing power generation of the present invention disperses energy storage control circuit, realize a kind of wind light mutual complementing power generation with stored energy link and disperseed energy storage control circuit, it can be when power supply grid be stablized, when supplying with energy-storage battery, unnecessary energy can also be generated electricity by way of merging two or more grid systems, in wind-force and intensity of illumination, in the short time, change when larger, 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) in combining inverter side, adopt the storage battery of low capacity to eliminate grid-connected current large change in short-term, realize the adjustable gently of wind-powered electricity generation and grid-connected energy; And existing regenerative resource adopts concentrated energy-storage battery to realize also 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 make 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 closure, control circuit output is all received 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 to mains supply when undesired, K2 switch disconnects, and K3 is closed, and control circuit output is connected with load, and at this moment disengaging electrical network, 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 can, under spirit of the present invention and category, modify and change above-described embodiment.Therefore, the scope of the present invention, should be as listed in claims.
Claims (9)
1. wind light mutual complementing power generation disperses an energy storage control circuit, comprising:
The storage battery of decentralized configuration;
The maximal power tracing unit of wind light mutual complementing input, its input light Complementary input structure of giving a dinner for a visitor from afar, 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 the conversion between storage battery electric energy and 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 to generate electricity by way of merging two or more grid systems or from the required alternating current of net work;
Mode select signal setting module, produces pattern setup control signal;
Output circuit switching controls module, selects the alternating current that inverter unit is produced to be connected to electrical network still from net load;
Digitial controller unit, produce maximal power tracing unit, this accumulator cell charging and discharging energy management unit and the required control signal of this inverter unit of this wind light mutual complementing input, under the pattern setup control signal controlling of this mode select signal setting module, control this output circuit switching controls module switching.
2. a kind of wind light mutual complementing power generation as claimed in claim 1 disperses energy storage control circuit, it is characterized in that: the maximal power tracing unit of this wind light mutual complementing input comprises booster circuit and current transformer (CS1) and the voltage transformer (VS2) being comprised of magicore inductor, transistor (S1), diode (D1); This current transformer (CS1) detects the input current of wind light mutual complementing input and delivers to this digitial controller unit, this voltage transformer (VS2) detects the input voltage of wind light mutual complementing input and delivers to this digitial controller unit, by the output voltage of relatively wind light mutual complementing input and the product of output current, obtain maximum power point, the output of this digitial controller unit while selecting maximum power is as this transistor of Duty ratio control (S1).
3. a kind of wind light mutual complementing power generation as claimed in claim 2 disperses energy storage control circuit, 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) forms buck circuit with transistor (S2 and S3), the energy coming from photovoltaic cell is behind this maximal power tracing unit, again by this buck circuit, give 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, is given this DC energy storage electric capacity and the electric discharge of this inverter unit, loop, when grid-connected work, by this accumulator cell charging and discharging loop, can maintain the stable of the power output of generating electricity by way of merging two or more grid systems.
4. a kind of wind light mutual complementing power generation as claimed in claim 3 disperses energy storage control circuit; 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 as claimed in claim 4 disperses energy storage control circuit, it is characterized in that: this mode select signal setting module carrys out the operating state of setting device by manual knob or key switch; 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 under net operating state.
6. a kind of wind light mutual complementing power generation as claimed in claim 5 disperses energy storage control circuit, it is characterized in that: this output circuit switching controls module is set the connection status of load by two groups of double-point double-throw switchs (K2 and K3), by voltage sensor (VS3), gather load voltage, 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 and be output as " 1 ", this 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 control circuit to export the end that gets access to grid to, when this manual knob or key switch connect low level signal, and when this load voltage is zero, enable control signal S and be output as " 0 ", 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.
7. a kind of wind light mutual complementing power generation as claimed in claim 6 disperses energy storage control circuit, it is characterized in that: this digitial controller unit comprises two adders (406, 407), comparator unit (408), dead band control 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 output current reference signal and receives the in-phase input end of 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 numeral PI_I adjuster, produce the current error signal after amplifying, this current error signal is delivered to the in-phase input end of this comparator unit 408, the triangular signal that this digitial controller unit of inputting with the inverting input of this comparator unit produces is compared, after dead band control and phase place adjustment driving, this digitial controller unit is exported corresponding pulse width modulating signal and is regulated rule to control this inverter unit by electric current.
8. a kind of wind light mutual complementing power generation as claimed in claim 7 disperses energy storage control circuit, it is characterized in that: when control module is selected from net operating state, this digitial controller unit produces the in-phase input end that reference voltage signal is received 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), this numeral PI_V adjuster by this digitial controller unit produces the current error signal after amplifying, this current error signal is delivered to the in-phase input end of this comparator unit, the triangular signal that this digitial controller unit of inputting with the inverting input of this comparator unit produces is compared, after dead band control and phase place adjustment driving, this digitial controller unit is exported corresponding pulse width modulating signal and is controlled this inverter unit by voltage-regulation rule.
9. a kind of wind light mutual complementing power generation as claimed in claim 8 disperses energy storage control circuit, it is characterized in that: all crystals pipe is insulated gate bipolar transistor.
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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 |
| CN115395554A (en) * | 2022-04-22 | 2022-11-25 | 深圳市金典电子科技有限公司 | Solar energy and commercial power complementary power generation system and control method |
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