CN105098952A - Controller for cooperative work of household solar micro grid and municipal power - Google Patents
Controller for cooperative work of household solar micro grid and municipal power Download PDFInfo
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Abstract
The invention provides a controller for cooperative work of a household solar micro grid and a municipal power. The controller is connected with a solar micro grid end, a municipal power grid end, an energy storage system, a direct current load end and an alternating current load end and is characterized by comprising a boosting control module, an inversion control module, a sampling detection module, a charging and discharging module, a reverse flow-prevention control module, a rectification module, a main control module, an input module and a display module, wherein power is supplied to a load by the solar micro grid end, the energy storage system and the municipal power grid end in a flow-through coordination manner, the allocation of output powers of the solar micro grid end, and the energy storage system and the municipal power grid end is adjusted by reasonably adjusting a control strategy so as to balance energy consumption of the load. In the controller provided by the invention, the solar micro grid is preferably used for power generation so as to provide energy to the load at maximum power, a differential part is supplemented by the energy storage system, and then the remaining power is coordinated by municipal power on the condition of still insufficiency; and moreover, reverse power flow to the municipal power from the solar micro grid during power generation cannot be generated.
Description
Technical field
The present invention relates to the technical field of novel renewable energy power generation applications, particularly a kind of home-use solar energy micro-capacitance sensor and municipal electric power collaborative work controller.
Background technology
At present, along with the outburst of energy crisis in global range, world energy sources is all faced with huge pressure and challenge.Therefore, novel renewable energy becomes a rising star, and the parent progressively obtaining people looks at, and solar energy is one of novel energy that wherein degree of concern is the highest.But meanwhile; these novel renewable energy have again a larger drawback; the work of its long-term stability is difficult to ensure when giving load energy and consuming; this just makes novel renewable energy run into huge obstacle in development, also causes novel renewable energy effect on alleviating energy crisis to be had a greatly reduced quality immediately.
Home-use solar energy micro-capacitance sensor is different from general structure micro-capacitance sensor.Home-use solar energy micro-capacitance sensor is that be characterized in that distribution comparatively disperses, and single household power is lower with ordinarily resident family for main object.Thus this kind of micro-capacitance sensor all has the requirement of its uniqueness when structural design and layout.The energy-storage system be equipped with for home-use solar energy micro-grid system is also not exclusively equal to general energy-storage system.This energy-storage system, primarily of special storage battery and special super capacitor composition, plays the effect of an energy terminal in the entire system.
The mode of current municipal electrical network electric energy and the collaborative work of solar energy micro-capacitance sensor electric energy is grid-connected in DC side, good for the quality of power supply municipal electric energy is first transformed in order to direct current energy, be reverse into alternating current through rear stage entirety again or be directly utilized as direct current, such meeting loses comparatively multi-energy in intermediate conversion links, causes total system energy conversion efficiency too low.
Therefore, be necessary to develop a kind of home-use solar energy micro-capacitance sensor and municipal electric power collaborative work controller, to solve the problem.
Summary of the invention
The object of the invention is: for the deficiency of background technology, develop a kind of home-use solar energy micro-capacitance sensor and municipal electric power collaborative work controller, powered to the load without adverse current is collaborative by solar energy micro-capacitance sensor, energy-storage system and municipal electric power, the distribution of three's power output is regulated, with balanced loaded energy ezpenditure by Reasonable adjustment control strategy.
For achieving the above object, the present invention adopts following technical scheme: a kind of home-use solar energy micro-capacitance sensor and municipal electric power collaborative work controller, with solar energy micro-capacitance sensor end, municipal administration electrical network end, energy-storage system, DC load end is connected with AC load end, it is characterized in that: comprise boosting rectifier control module, inversion control module, sample detecting module, charge-discharge modules, counterflow-preventing control module, rectification module, main control module, input module and display module, described solar energy micro-capacitance sensor end, boosting rectifier control module, inversion control module, charge-discharge modules, counterflow-preventing control module and AC load end are linked in sequence, described municipal electrical network end, counterflow-preventing control module and AC load end are linked in sequence, described sample detecting module one end is connected with main control module, the other end respectively with described municipal electrical network end, inversion control module, counterflow-preventing control module, charge-discharge modules connects, for detecting the frequency of the output voltage electric current of described solar energy micro-capacitance sensor end generating, phase place and amplitude and power, the frequency of the output voltage electric current that municipal administration electrical network end is powered, phase place and amplitude and power, the two merges the frequency of output voltage electric current after described counterflow-preventing control module, phase place and amplitude and power, and the frequency of energy-storage system output voltage electric current after charge-discharge modules process, phase place and amplitude and power, described rectification module one end is connected with described counterflow-preventing control module, and the other end is connected with described DC load end, described main control module is connected with boosting rectifier control module, inversion control module, sample detecting module, counterflow-preventing control module, charge-discharge modules, input module and display module respectively, for the treatment of with judge described in the sampled signal sent here of sample detecting module, conservative control solar energy micro-capacitance sensor, energy-storage system and municipal electric power are worked in coordination with and are powered to described DC load end and AC load end.
Home-use solar energy micro-capacitance sensor as above and municipal electric power collaborative work controller, it is characterized in that, described controller has seven kinds of powering modes: the independent powering load of (1) solar energy micro-capacitance sensor end; (2) the independent powering load of energy-storage system; (3) the independent powering load of municipal electrical network end; (4) solar energy micro-capacitance sensor end and energy-storage system associating powering load; (5) solar energy micro-capacitance sensor end and municipal electrical network end associating powering load; (6) energy-storage system and municipal electrical network end associating powering load; (7) solar energy micro-capacitance sensor end, energy-storage system and municipal electrical network end associating powering load.
Home-use solar energy micro-capacitance sensor as above and municipal electric power collaborative work controller, it is characterized in that, the 4 road signals that described main control module real-time reception sample detecting module collection comes, carry out inner equivalent regular, different power consumptions according to load select suitable powering mode, and the preferential electric energy using solar energy micro-capacitance sensor end, secondly use the electric energy of energy-storage system, finally use the electric energy of municipal electrical network end.
Home-use solar energy micro-capacitance sensor as above and municipal electric power collaborative work controller, it is characterized in that, boosting rectifier control module comprises DC/DC booster circuit and drive circuit, adopt intelligent integrated power model PM15RSH120, match with single-chip microprocessor MCU, intelligent integrated power model PM15RSH120 can realize the maximal power tracing MPPT of cell panel in solar energy micro-capacitance sensor electricity generation system, and is realized by the control algolithm of pulse width modulation (PWM).
Home-use solar energy micro-capacitance sensor as above and municipal electric power collaborative work controller, it is characterized in that, inversion control module comprises DC/AC inverter main circuit and drive circuit, adopt intelligent integrated power model PM75CL1A120, the pwm signal that DC/AC inverter circuit is used for main control module exports carries out corresponding power amplification, normally work in order to drive inverter bridge circuit, to realize the secondary direct current in solar energy micro-grid system after DC/DC to be converted into slightly higher than civil power after DC/AC inversion, frequency, the 380V three-phase alternating current that phase place is consistent or 220V single-phase alternating current, corresponding self-protection can also be carried out in abnormal cases simultaneously.
Home-use solar energy micro-capacitance sensor as above and municipal electric power collaborative work controller, it is characterized in that, charge-discharge modules comprises a two-way DC/AC variator, when sample detecting module detects that the actual power power of solar energy micro-capacitance sensor end is higher than the consumed power of load end, by the work order that main control module sends, charge-discharge modules is made to be operated in charged state, unnecessary electric energy is dumped to energy-storage system, when sample detecting module detect solar energy micro-capacitance sensor end actual power power will consumed power lower than load end time, by the work order that main control module sends, charge-discharge modules is made to be operated in discharge condition, the fault offset stored by energy-storage system out supply load uses.
Home-use solar energy micro-capacitance sensor as above and municipal electric power collaborative work controller, it is characterized in that, counterflow-preventing control module is used for the electric flux accurately controlling reverse flow, the control switch of timely cut-out electrical network end, main control module can uninterruptedly compare the data that sample detecting module acquires is returned and analyze, when sample detecting module detects that energy that solar energy electrical network end generates electricity is to the reverse flow of municipal electrical network end, or when detecting that solar energy electrical network end generated output can meet the power consumption of load completely, the DSP of main control module can send corresponding control command, the overall energy output of solar energy electrical network end electricity generation system is to a certain degree being declined, again municipal electrical network end is carried out to the detection of reverse energy flow subsequently, if still find that there is reverse flow of power, then repeat aforesaid operations voluntarily, till municipal electrical network section detects and does not have reverse energy flow.
Home-use solar energy micro-capacitance sensor as above and municipal electric power collaborative work controller, is characterized in that, main control module adopts the dsp chip TMS320F28335 of TI company.
The invention has the beneficial effects as follows: relative to prior art, tool of the present invention has the following advantages:
1) this controller is for family small-power solar energy micro-capacitance sensor electricity generation system, not only fully ensure the utilization of renewable energy solar energy, simultaneously also using energy-storage system and municipal electric power as stand-by power source, collaborative work is given, to guarantee load continuous, stablize, to work efficiently when solar power is not enough.
2) ensure that the generating of preferential use solar energy micro-capacitance sensor provides energy to load with maximum power, differential section is supplemented by energy-storage system again, and still when deficiency, remaining power is coordinated by municipal electric power again.
3) generating of solar energy micro-capacitance sensor can not to municipal electric power generation reverse power flowing.
4) MPPT maximal power tracing has been set up in the generating of solar energy micro-capacitance sensor, substantially increase solar energy micro-capacitance sensor generating efficiency, nor Harmfulness Caused by Harmonics can be produced to the quality of power supply of municipal electrical network, ensure that the clean of municipal electrical network and safety, can AC load be supplied, also can supply DC load.
5) because home-use solar energy micro-capacitance sensor floor space and space are all relatively little, convenient for installation and maintenance, have in the modern society of inch of land chi gold and greatly promote potential.
Accompanying drawing explanation
Fig. 1 is the operating diagram of collaborative work controller of the present invention.
Fig. 2 is the structure principle chart of collaborative work controller of the present invention.
Fig. 3 is the workflow diagram of collaborative work controller of the present invention.
Symbol description in accompanying drawing 2: 1-solar energy, 2-municipal administration electrical network, 3-energy-storage system, 4-boosting rectifier control module, 5-inversion control module, 6-sample detecting module, 7-charge-discharge modules, 8-counterflow-preventing control module, 9-rectification module, 10-main control module, 11-input through keyboard module, 12-LCD MODULE.
Symbol description in accompanying drawing 3: Q1:P
1>=P
5, Q2:P
2>=P
6, Q3:P
2=P
4, Q4:P
2>P
4, Q5:P
1=P
4, Q6:P
1>P
4, Q7:P
4=P
1+ P
2, Q8:P
4<P
1+ P
2, Q9:P
4=P
3, Q10:P
4=P
2abundant electric discharge, Q11:P
4=P
2partial discharge, Q12:P
4=P
2+ P
3abundant electric discharge, Q13:P
4=P
1, Q14:P
4=P
1-P
2charging, Q15:P
4=P
1+ P
3, Q16:P
4=P
1+ P
2abundant electric discharge, Q17:P
4=P
1+ P
2partial discharge, Q18:P
4=P
1+ P
2+ P
3abundant electric discharge, wherein: P
1: solar energy micro-capacitance sensor end generated output, P
2: energy-storage system electrical network end power, P
3: municipal electrical network end power, P
4: load end consumed power, P
5: solar energy micro-capacitance sensor end its own system consumed power, P
6: energy-storage system electrical network end its own system consumed power.
Embodiment
In order to understand the present invention better, illustrate content of the present invention further below in conjunction with embodiment, but content of the present invention is not only confined to the following examples.Those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values are equally within claims limited range listed by the application.
Schematic diagram of the present invention as shown in Figure 1.Home-use solar energy micro-capacitance sensor and municipal electric power collaborative work are exactly power to the load so that solar energy micro-capacitance sensor, energy-storage system and municipal electric power are collaborative, and when powering, solar energy micro-capacitance sensor has energy flow in no instance to municipal electrical network, only have when the generating of solar energy micro-capacitance sensor can not meet the power consumption of load, first supplemented by energy-storage system, still carry out coordinated regulation by municipal electrical network again during deficiency, the principal character of this supply power mode is: (1) controller can ensure that the generating of solar energy micro-capacitance sensor uses on the spot; (2) use of solar energy micro-capacitance sensor generating, can not produce any impact to the normal power supply of municipal electrical network; (3) solar energy grid generation can not provide energy to municipal electrical network, ensures that solar energy grid generation is not to the flow of power of municipal electrical network; (4) generating of solar energy micro-capacitance sensor is as preferred power supply, and energy-storage system is power supply as a supplement, and municipal electric power, as final regulation and control power supply, ensures the use that the generating of solar energy micro-capacitance sensor is efficient, preferential; (5) not only can be used for AC load, can also DC load be supplied; (6) energy-storage system is as peak regulation part, during electricity consumption ebb on daytime by excess energy unloading to energy-storage system, during peak of power consumption at night, the electric energy in energy-storage system is discharged and carry out peak regulation, it also avoid the energy dissipation of solar energy micro-capacitance sensor generating, achieve the maximum using of energy.
The home-use solar energy micro-capacitance sensor of the present invention's design and municipal electric power collaborative work controller, be not by municipal electrical network electric energy and solar energy micro-capacitance sensor electric energy grid-connected in DC side, but the control of power output is realized by the overall power output of conservative control photovoltaic array, ensure the equilibrium of solar energy micro-capacitance sensor end, stable output, and the electric energy that solar energy micro-capacitance sensor electricity provides with municipal electric power after DC/DC boost module and DC/AC inversion module is collaborative after AC is networked to power to the load, AC load can be supplied, also can be used for DC load simultaneously.
As shown in Figure 2, a kind of home-use solar energy micro-capacitance sensor and municipal electric power collaborative work controller, comprise boosting rectifier control module 4, inversion control module 5, sample detecting module 6, charge-discharge modules 7, counterflow-preventing control module 8, rectification module 9, main control module 10, input module 11 and display module 12, its concrete cut-away view as shown in Figure 2.
Boosting rectifier control module 4: the DC/DC booster circuit in boosting rectifier control module 4 and drive circuit all adopt the intelligent integrated power model PM15RSH120 of Mitsubishi, match with single-chip microcomputer (MCU), this module can realize the maximal power tracing (MPPT) of cell panel in solar energy micro-capacitance sensor electricity generation system, and realized by the control algolithm of pulse width modulation (PWM), this just makes when atmospheric environment or peripheral load variations, can both ensure that the photovoltaic array of solar energy electrical network is operated in maximum power point always, to guarantee the high efficiency that solar energy micro-capacitance sensor generates electricity.
Inversion control module 5: the DC/AC inverter main circuit in inversion control module 5 and drive circuit adopt the intelligent integrated power model PM75CL1A120 of Mitsubishi.Because its switching frequency up to 20kHz, can meet the demand of system module completely.And integrated control circuit also provides corresponding drive circuit, IGBT and be provided with the safety protective circuit of backward diode.The pwm signal that the main working tasks of DC/AC inverter circuit is main control module exports carries out corresponding power amplification; in order to drive the normal work of inverter bridge circuit; realize the secondary direct current in solar energy micro-grid system after DC/DC to be converted into slightly higher than civil power after DC/AC inversion with this; the 380V three-phase alternating current that frequency, phase place are consistent or 220V single-phase alternating current, can also carry out corresponding self-protection simultaneously in abnormal cases timely and effectively.
Sample detecting module 6: sample detecting module 6 is that optimization system algorithm, carries out comprehensive, real-time detection to each several part running status of system, and processes timely various detection sampled signal and analyze in order to sophisticated systems controls.Need the signal of sampling and detecting more in native system, comprising: the 1. amplitude of the electric current and voltage that exports after DC/AC inversion module of solar energy micro-capacitance sensor, frequency and phase-detection; 2. the amplitude of municipal electrical network output voltage electric current, frequency and phase-detection; 3. the amplitude of solar energy electrical network end and the output voltage electric current of municipal electrical network end after counterflow-preventing control module merges, frequency and phase-detection; 4. the amplitude of the electric current and voltage of energy-storage system after charge-discharge modules process, frequency and phase-detection.The major function of this sample detecting module 6 collects relevant sampling or Detection Information, and pass to main control module 10 in time, judges so that main control module 10 makes preliminary treatment in time.When native system is when normally running, for system components provides correct parameter or index, provide correct input control amount, safe, efficient, stable operation for system provide reliably with reference to prerequisite.In time there is certain fault in whole system, also can feed back some important parameter indexs in time and send into main control module, so just, main control module 10 can be helped to carry out fault location rapidly, thus make corresponding process and diagnosis, so just, greatly reduce failure rate and maintenance rate, further increase the security and stability of whole system.
Charge-discharge modules 7: the core of charge-discharge modules 7 is two-way DC/AC variators.When sample detecting module 6 detects that the actual power power of solar energy micro-capacitance sensor end is higher than the consumed power of load end, rational work order is sent by main control module 10, make charge-discharge modules 7 be operated in charged state, unnecessary electric energy is dumped to energy-storage system.When sample detecting module 6 detect solar energy micro-capacitance sensor end actual power power will consumed power lower than load end time, rational work order is sent by main control module 10, make charge-discharge modules 7 be operated in discharge condition, the fault offset stored by energy-storage system out supply load uses.
Counterflow-preventing control module 8: counterflow-preventing control module 8, for accurately controlling the electric flux of reverse flow, cuts off the control switch of electrical network end in time.Main control module 10 can uninterruptedly compare the data that sample detecting module 6 collection is returned and analyze, when sample detecting module 6 detects that the energy of solar energy grid generation is to municipal electrical network reverse flow, or when detecting that solar energy electrical network generated output can meet the power consumption of load completely, the DSP of main control module 10 can send corresponding control command, the overall energy output of solar energy electrical network electricity generation system is to a certain degree being declined, again municipal electrical network section is carried out to the detection of reverse energy flow subsequently, if still find that there is reverse flow of power, then repeat aforesaid operations voluntarily, till municipal electrical network section detects and does not have reverse energy flow.Certainly, this adjustment process needs to complete in a short period of time, and this just proposes very high requirement to the instantaneity of corresponding control algolithm.When finding municipal electrical network end cannot be made to eliminate the reverse flow of power by the generated output of adjustment solar energy micro-capacitance sensor end within the regular hour, by DSP control relay, and then control contactor makes municipal mains supply end and using electricity system and solar electric power supply system disconnect, to guarantee the fail safe of whole system.
Rectification module 9: the Main Function of rectification module 9 be by solar energy electrical network end and municipal electrical network end grid-connected after AC rectification be the direct current of different amplitude, so that the DC load supplying different amplitude uses, farthest meet the electricity consumption requirement of various model load.
Main control module 10: main control module 10 adopts DSP (TMS320F28335) chip of TI company.The task that main control module 10 primary responsibility completes is: 1. detect multichannel corresponding sampled signal, after certain algorithm process, provide and export control signal accordingly, is used for the corresponding output of control DC/AC inverter circuit; 2. complete phase-locked function, be used for guaranteeing that the alternating current after controlling inverter circuit output is for stably, the sine wave of high-quality, and with electrical network with pressing same homophase frequently; 3. the amplitude of the electric current and voltage of solar energy electrical network end and municipal electrical network end, frequency and phase place is compared, conservative control powering mode, to guarantee payload security, stable running status; 4. carry out real time communication, cooperation control when being necessary with the MCU of DC Module, make the generated output of solar energy electrical network end meet the actual requirement of system; After ⑤Dui Ge road sampled signal has carried out preliminary treatment, the security and stability of each power supply branch road will be judged in time, if when finding that a certain branch voltage, electric current or power exist abnormal, analysis to be carried out at once and judge reason, cut off corresponding part computer in time when being necessary, to guarantee normal, efficient, the stable operation of other circuit parts.
Input through keyboard module 11: the Main Function of input through keyboard module 11 is to provide a programming platform to user or engineer.When the concrete environment for use of periphery changes time, can the corresponding setup parameter of change control device, in the hope of the state making controller be operated in stability and high efficiency always.
LCD MODULE 12: the Main Function of LCD MODULE 12 is to provide one with reference to platform to user or engineer.Above display screen, the running status of whole system can be recognized intuitively, in real time, be convenient to user and carry out the parameters that controller equiment is in operation and collect and adjustment.
The main working process of home-use solar energy micro-capacitance sensor and municipal electric power collaborative work controller as shown in scheme 3.Described controller has seven kinds of powering modes:
(1) the independent powering load of solar energy electrical network end;
(2) the independent powering load of energy-storage system electrical network end;
(3) the independent powering load of municipal electrical network end;
(4) solar energy electrical network end and energy-storage system electrical network end associating powering load;
(5) solar energy electrical network end and municipal electrical network end associating powering load;
(6) energy-storage system electrical network end and municipal electrical network end associating powering load;
(7) solar energy electrical network end, energy-storage system electrical network end and municipal electrical network end associating powering load.
The home-use solar energy micro-capacitance sensor of the present invention's design and municipal electric power collaborative work controller, can realize following functions:
(1) solar energy micro-capacitance sensor, energy-storage system and municipal electric power are collaborative powers to the load; 1. when solar energy micro-capacitance sensor generated output is greater than load power demand, municipal electric power is not needed to provide any power, now, the power division of municipal electrical network is set to zero by controller, power consumption required for load all by solar energy micro-capacitance sensor generate electricity provide, unnecessary electric energy part by charge-discharge modules unloading in energy-storage system; 2., when solar energy micro-capacitance sensor generated output equals load power demand, the power consumption required for load is all generated electricity by solar energy micro-capacitance sensor and provides, and do not need municipal electric power to provide any power, charge-discharge modules does not now work; 3. when solar energy micro-capacitance sensor generated output is less than load power demand, charge-discharge modules now works in discharge condition, by the out supply load use of the energy trasfer in energy-storage system; 4. when solar energy micro-capacitance sensor generated output is less than load power demand, and when the energy in energy-storage system still can not meet whole energy ezpenditure of load with maximum power output, solar energy micro-capacitance sensor end with maximum power output to load end, energy-storage system also exports to load end with peak power output, and remaining not enough part is supplemented by municipal electric power again.
(2) whole system makes solar energy micro-capacitance sensor end, energy-storage system end and municipal electrical network end work in coordination with to carry out energy supply to load, no matter under what circumstances, the energy requirement of load all can be met, the load power down of user can't be caused because of weather or other the system failure, substantially increase the dependable with function of system, also farthest ensure that user security, lasting, stable need for electricity.
(3) quality of power supply of whole system to municipal electrical network end implements and controls without adverse current, prevents solar energy micro-capacitance sensor electricity from can flow in municipal electrical network, ensure that the clean of municipal electrical network and safety.
(4) whole system prime contains maximal power tracing part, therefore the gas-to electricity efficiency of solar energy micro-capacitance sensor also improve greatly, solar energy micro-capacitance sensor electricity can use as preferred power supply, the electric energy of energy-storage system end comes for subsequent use as secondary power, and the electric energy provided in municipal electrical network uses as the final power supply that supplements, achieve the target that the generating of solar energy micro-capacitance sensor " on the spot, efficiently, preferentially uses ".
(5) provide stable, lasting can to corresponding AC load, efficient electric energy, also can give that corresponding DC load provide stable, lasting, efficient electric energy simultaneously.
(6) input through keyboard module can carry out corresponding optimization amendment to whole system program, so that this controller can play its maximum effect in different environment.
(7) LCD MODULE can show each several part system parameters in real time, so that operating personnel can understand the running status of system components more intuitively, to break down or can artificial turning off system in necessary situation, farthest ensureing whole system and the safety by electric loading.
Application example:
The application of this invention has very wide prospect, first carries out proximate analysis of the present invention for residential households using electricity system now.General family family all can have some conventional household electrical appliance such as refrigerator, water heater, television set, and especially in hot summer, nice and cool, comfortable with the troubling great number electricity charge after air-conditioning uses often allow people be difficult to balance.Even and if this family resident is provided with solar water heater, also for manufacture hot water, further development and utilization can only can not be carried out to solar energy.This just makes the top quality energy in summer---and solar energy is wasted greatly.If but after resident is provided with home-use solar energy micro-capacitance sensor of the present invention and municipal electric power collaborative work controller, power in this controller access user, so all household electrical appliance preferentially can use solar energy micro-capacitance sensor electricity energy.Time by day, family population is less, and power load is also less, but now intensity of solar radiation is higher, and generated output is also larger, and therefore the energy output of the solar energy micro-capacitance sensor on daytime is certain to the energy ezpenditure being greater than load.At this moment because native system has set up corresponding energy-storage system, by the electric energy unloading unnecessary daytime in energy-storage system, the waste of photovoltaic energy can be avoided.During night, family population is more, and domestic electric appliance energy ezpenditure is also general comparatively large, when solar energy micro-capacitance sensor electricity is not enough to the whole power consumption meeting these household electrical appliance, so energy-storage system by the fault offset of storage on daytime out, can meet the energy ezpenditure by electric loading.If whole energy ezpenditure of load still cannot be met when jointly being powered by solar energy micro-capacitance sensor and energy-storage system, differential section is provided by municipal electrical network end again, just farthest can utilize sun the subject of knowledge and the object of knowledge generating energy so like this, and make the electricity charge spending of this resident reduce a lot.If scope expands a bit again, such as in a whole community, a large amount of photovoltaic arrays can be installed at the roof of building by infrastructure management company, the electric energy being used as this community preferentially uses power supply, so, some basic electricity equipment such as the illumination of a inside, building can run, and do not need the electric energy expending municipal electrical network, both save the electricity consumption spending of community, also save electric energy.Inside the distribution center of community, this controller is installed for another example, because different owners electricity consumption in respective family all compares dispersion, be not easy to efficiency utilization, and inside the distribution center this controller being arranged on community, just the power consumption of dispersion can be put together, just the utilance making solar energy micro-capacitance sensor generate electricity in the middle of invisible improves greatly, and infrastructure management company also can reduce and relies on the electricity consumption of municipal electrical network.This has also fully demonstrated the target of development and utilization new forms of energy in itself.
Certainly, in the present invention, the utilization of solar energy is not only confined to.At the generating input of its solar energy micro-capacitance sensor, the other forms of novel renewable energy such as corresponding wind power generation, hydroelectric power generation, tidal power generation, biomass energy sources for generating electricity can be replaced with equally.
The content be not described in detail in this specification belongs to the known prior art of professional and technical personnel in the field.
Claims (8)
1. a home-use solar energy micro-capacitance sensor and municipal electric power collaborative work controller, be connected with AC load end with solar energy micro-capacitance sensor end, municipal electrical network end, energy-storage system, DC load end, it is characterized in that: comprise boosting rectifier control module, inversion control module, sample detecting module, charge-discharge modules, counterflow-preventing control module, rectification module, main control module, input module and display module, described solar energy micro-capacitance sensor end, boosting rectifier control module, inversion control module, charge-discharge modules, counterflow-preventing control module and AC load end are linked in sequence, described municipal electrical network end, counterflow-preventing control module and AC load end are linked in sequence, described sample detecting module one end is connected with main control module, the other end respectively with described municipal electrical network end, inversion control module, counterflow-preventing control module, charge-discharge modules connects, for detecting the frequency of the output voltage electric current of described solar energy micro-capacitance sensor end generating, phase place and amplitude and power, the frequency of the output voltage electric current that municipal administration electrical network end is powered, phase place and amplitude and power, the two merges the frequency of output voltage electric current after described counterflow-preventing control module, phase place and amplitude and power, and the frequency of energy-storage system output voltage electric current after charge-discharge modules process, phase place and amplitude and power, described rectification module one end is connected with described counterflow-preventing control module, and the other end is connected with described DC load end, described main control module is connected with boosting rectifier control module, inversion control module, sample detecting module, counterflow-preventing control module, charge-discharge modules, input module and display module respectively, for the treatment of with judge described in the sampled signal sent here of sample detecting module, conservative control solar energy micro-capacitance sensor, energy-storage system and municipal electric power are worked in coordination with and are powered to described DC load end and AC load end.
2. home-use solar energy micro-capacitance sensor according to claim 1 and municipal electric power collaborative work controller, it is characterized in that, described controller has seven kinds of powering modes: the independent powering load of (1) solar energy micro-capacitance sensor end; (2) the independent powering load of energy-storage system; (3) the independent powering load of municipal electrical network end; (4) solar energy micro-capacitance sensor end and energy-storage system associating powering load; (5) solar energy micro-capacitance sensor end and municipal electrical network end associating powering load; (6) energy-storage system and municipal electrical network end associating powering load; (7) solar energy micro-capacitance sensor end, energy-storage system and municipal electrical network end associating powering load.
3. home-use solar energy micro-capacitance sensor according to claim 1 and municipal electric power collaborative work controller, it is characterized in that, the 4 road signals that described main control module real-time reception sample detecting module collection comes, carry out inner equivalent regular, different power consumptions according to load select suitable powering mode, and the preferential electric energy using solar energy micro-capacitance sensor end, secondly use the electric energy of energy-storage system, finally use the electric energy of municipal electrical network end.
4. home-use solar energy micro-capacitance sensor according to claim 1 and municipal electric power collaborative work controller, it is characterized in that, boosting rectifier control module comprises DC/DC booster circuit and drive circuit, adopt intelligent integrated power model PM15RSH120, match with single-chip microprocessor MCU, intelligent integrated power model PM15RSH120 can realize the maximal power tracing MPPT of cell panel in solar energy micro-capacitance sensor electricity generation system, and is realized by the control algolithm of pulse width modulation (PWM).
5. home-use solar energy micro-capacitance sensor according to claim 1 and municipal electric power collaborative work controller, it is characterized in that, inversion control module comprises DC/AC inverter main circuit and drive circuit, adopt intelligent integrated power model PM75CL1A120, the pwm signal that DC/AC inverter circuit is used for main control module exports carries out corresponding power amplification, normally work in order to drive inverter bridge circuit, to realize the secondary direct current in solar energy micro-grid system after DC/DC to be converted into slightly higher than civil power after DC/AC inversion, frequency, the 380V three-phase alternating current that phase place is consistent or 220V single-phase alternating current, corresponding self-protection can also be carried out in abnormal cases simultaneously.
6. home-use solar energy micro-capacitance sensor according to claim 1 and municipal electric power collaborative work controller, it is characterized in that, charge-discharge modules comprises a two-way DC/AC variator, when sample detecting module detects that the actual power power of solar energy micro-capacitance sensor end is higher than the consumed power of load end, by the work order that main control module sends, charge-discharge modules is made to be operated in charged state, unnecessary electric energy is dumped to energy-storage system, when sample detecting module detect solar energy micro-capacitance sensor end actual power power will consumed power lower than load end time, by the work order that main control module sends, charge-discharge modules is made to be operated in discharge condition, the fault offset stored by energy-storage system out supply load uses.
7. home-use solar energy micro-capacitance sensor according to claim 1 and municipal electric power collaborative work controller, it is characterized in that, counterflow-preventing control module is used for the electric flux accurately controlling reverse flow, the control switch of timely cut-out electrical network end, main control module can uninterruptedly compare the data that sample detecting module acquires is returned and analyze, when sample detecting module detects that energy that solar energy electrical network end generates electricity is to the reverse flow of municipal electrical network end, or when detecting that solar energy electrical network end generated output can meet the power consumption of load completely, the DSP of main control module can send corresponding control command, the overall energy output of solar energy electrical network end electricity generation system is to a certain degree being declined, again municipal electrical network end is carried out to the detection of reverse energy flow subsequently, if still find that there is reverse flow of power, then repeat aforesaid operations voluntarily, till municipal electrical network section detects and does not have reverse energy flow.
8. home-use solar energy micro-capacitance sensor according to claim 1 and municipal electric power collaborative work controller, is characterized in that, main control module adopts the dsp chip TMS320F28335 of TI company.
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