CN105811553A - Household fast charging device and control method thereof - Google Patents
Household fast charging device and control method thereof Download PDFInfo
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- CN105811553A CN105811553A CN201610325488.4A CN201610325488A CN105811553A CN 105811553 A CN105811553 A CN 105811553A CN 201610325488 A CN201610325488 A CN 201610325488A CN 105811553 A CN105811553 A CN 105811553A
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- 238000004146 energy storage Methods 0.000 claims abstract description 61
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- PLUBXMRUUVWRLT-UHFFFAOYSA-N Ethyl methanesulfonate Chemical compound CCOS(C)(=O)=O PLUBXMRUUVWRLT-UHFFFAOYSA-N 0.000 claims description 13
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- 238000005286 illumination Methods 0.000 claims description 4
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- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
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- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 1
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- H02J7/027—
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- H02J7/0026—
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- H02J7/0027—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
- H02J7/04—Regulation of charging current or voltage
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Abstract
The invention discloses a household fast charging device and a control method thereof. In a technical scheme of the invention, by additionally arranging an energy storage battery and a corresponding control device in a conventional family electricity system and designing a specific control strategy, the household fast charging equipment (namely, the household fast charging device) for an electrical vehicle can be realized on the premise of not increasing a family power distribution capacity. By adopting the device and the method provided by the invention, a problem that the fast charging device for the electrical vehicle cannot be mounted in a family power distribution system is solved; and through the method, user's load is effectively balanced, a function that the fast charging device serves as a backup power is realized, and an access port is also reserved in the system (the fast charging device) aiming at household distributed new energy resources, so that the access of the new energy resources such as a distributed photovoltaic system and a small-sized draught fan is facilitated. The technical scheme of the invention is also suitable for densely populated living areas and business districts, and the fast charging device can be established without additionally arranging a power distribution system in the living areas and the business districts.
Description
Technical field
The present invention relates to electric vehicle rapid charging technical field, specifically a kind of domestic quick charge device and control method thereof.
Background technology
Along with the increase of ambient pressure, every country is all trying to explore utilization of new energy resources mode.Electric automobile also obtains quick development in recent years, and charging pile as the electric energy ancillary equipment of electric automobile, is the universal key link of electric motor car.Current China has had become as the country that automobile charging pile is maximum.
Charging pile equipment is broadly divided into direct-current charging post (quick charge stake) and alternating-current charging pile (trickle charge stake), direct-current charging post adopts galvanic form to be electric vehicle battery system charging, direct-current charging post is generally adopted three-phase four-wire system (or the phase three-wire three value) power supply of 380v, novel charging pile, in order to adapt to the requirement of DC power-supply system, also explicitly indicates that in the universal standard and to support DC power-supply system.Output voltage according to charging object charging requirement by controller on-line control, it is possible to provide the user quick charge and two kinds of charging modes of standard charging.Alternating-current charging pile is output as the alternating current of the 50Hz of 220V, provides charge power supply for electric motor car.Alternating-current charging pile simple in construction, requires also less to net capacity, and employing is that trickle charge mode is charged.Direct-current charging post, in order to ensure that the charging interval is less, it is necessary to the power configuration that electrical network provides is higher, generally according to country.The universal standard according to China, the electric pressure of DC charging equipment is divided three classes: 150V-350VDC, 300V-500VDC, 450V-700VDC, being respectively directed to different types of electric automobile, current class can be divided into: the type such as 50A, 80A, 100A, 150A, 200A, 250A, 400A and 500A.The power bracket that these direct-current charging posts require is also relatively wider, from tens kilowatts to hundreds of kilowatt not etc..For tesla's electric motor car, current tesla adopts three kinds of modes to be charged: 1, adopting alternating-current charging pile mode, the 110V power supply in family is charged, and the charger of greater efficiency can ensure running car 50 kilometers in one hour；2, adopting the direct-current charging post that efficiency is higher, charging rate can double, and namely the charge volume of hour can travel 100 km；3, efficient charging station is adopted, it is possible to 480 kilometers can be travelled at a hour Rechargeable vehicle.At present, mode 2 and mode 3 are owing to needing bigger power when charging, and general family holds quantitative limitation due to distribution system of registering one's residence, and are difficult to have so big power and access, so home-use charging modes is still in mode 1.This also just determines electronic car owner it is difficult to ensure that the charge volume be in, limits the use of electric automobile to a certain extent.And, consider the fast development of electric automobile, following in the population living area than comparatively dense and shopping centre, substantial amounts of charger all can occur, simultaneously filling the feature that group is put to adapt to electric vehicle rapid charging and group, this will bring great challenge to distribution system.
General family adopts single phase power supply system, or three-phase power supply system, its distribution capacity is generally about 10kW, this capacity usually carries out technology according to family's tradition electric loading, regulation according to existing national standards " design of civil buildings specification ", ordinary residence power load is 2.5kW, 4kW；Health residential area power load is: basic model 4kW/ family, raising type 6kW/ family, advanced version 8kW/ family.For the heap(ed) capacity of some bigger residential electric power systems only at about 50kW, for such capacity and distribution system of registering one's residence, it is difficult to fast charge equipment is installed.The three-phase power supply system of traditional fast-speed direct current charging pile employing or DC power-supply system, it is desirable to distribution capacity is relatively big, is generally more than 200kW, therefore cannot install tradition quick charge stake in home-use distribution.
Summary of the invention
It is an object of the invention to provide a kind of domestic quick charge device and control method thereof, to overcome the defect (not having home-use fast charge equipment) existed in prior art.
The purpose of the present invention is achieved through the following technical solutions:
A kind of domestic quick charge device, it includes the electric energy measurement terminal registered one's residence, the chopper of registering one's residence that the outfan of electric energy measurement terminal connects, register one's residence chopper outlet connect two parts, a part comprises normal domestic use load: illuminates class load, air-conditioning class load and can turn off class load, wherein illumination class load connects, by the first chopper, chopper of registering one's residence, and air-conditioning class load connects, by the second chopper, chopper of registering one's residence, and can turn off class load and connect, by catalyst, chopper of registering one's residence；Register one's residence chopper outlet connect another part be the 3rd chopper, the 3rd chopper connect residual current operated protective device, residual current operated protective device connects the first device for measurement of electrical energy, first device for measurement of electrical energy connect energy converter；Energy converter connects energy-storage battery by the second DC converter on the one hand, connects direct-current charging post by the first DC converter on the other hand；Performance number and charge value are transmitted to EMS by electric energy measurement terminal, the first device for measurement of electrical energy, energy-storage battery, direct-current charging post respectively through the summary table power computation module P1 that registers one's residence, straight-flow system power computation module P2, energy-storage battery dump energy computing module P4, charge power computing module P5；EMS respectively to PCS control module, the control system of the first DC converter, the second DC converter control system export the first control signal PA, the second control signal PB, the 3rd control signal PC；Described EMS passes through midget relay control contactor.
Preferably, it also includes the control system of optional distributed energy, the 3rd DC converter, direct current energy measurement apparatus and the 3rd DC converter, described energy converter connects optional distributed energy after sequentially passing through direct current energy measurement apparatus, the 3rd DC converter, direct current energy measurement apparatus is by micro-origin system power computation module P3 transmission power value to EMS, and EMS exports the 4th control signal PD to the control system of the 3rd DC converter.
Preferably, described optional distributed energy includes wind energy, solar energy.
Preferably, described energy-storage battery is retired electrokinetic cell.
Preferably, described turn off class load and include heating load, washing machine and decorative lighting.
Preferably, register one's residence described between chopper and the 3rd chopper by ground connection after the 4th chopper connected and surge protector.
A kind of control method of domestic quick charge device, based on described domestic quick charge device, its rate-determining steps is:
The first step: EMS monitors power and the electricity of electric energy measurement terminal, the first device for measurement of electrical energy, energy-storage battery and direct-current charging post respectively by the summary table power computation module P1 that registers one's residence, straight-flow system power computation module P2, energy-storage battery dump energy computing module P4, charge power computing module P5；
Second step: determine whether that electric automobile is charged, without, determine whether the dump energy P4 of energy-storage battery, if dump energy is not reaching to 100%, then control the second DC converter by the control system of the second DC converter energy-storage battery is charged, be gradually increased the charge power of energy-storage battery by controlling the control system of the second DC converter；Judging whether the reading of electric energy measurement terminal is Pall and judges whether charge power is PBr simultaneously, meet these two one therein and then stop increasing charge power, PBr is the specified charge power of battery, and Pall is the full-load power registered one's residence；Judge energy-storage battery dump energy constantly, and be charged patten transformation according to the charging curve of battery simultaneously, when dump energy is 100%, stop charging；In this charging process, EMS sends PA order by controlling module to PCS, controls energy converter and carries out power conversion, and it changes power command PA=PBr；
3rd step: determine whether that electric automobile is charged, if there being charging electric vehicle, judge the charge mode that user selects: if selecting trickle charge pattern simultaneously, then control the first DC converter by the control system of the first DC converter to be charged to electric automobile, charge power is PS, controls module by PCS simultaneously and controls the power P A=PS of energy converter；If what user selected is fast mold filling formula, now first pass through the control system of the first DC converter to control the first DC converter and be charged to electric automobile, charge power is PQ, control the power P C=-PBr of the second DC converter, control the power P A=-(PBr-PQ of energy converter)；And if judge P1 > Pall, then control midget relay control contactor disconnect, by reduce load increase charging capacity.
Preferably, charging device also includes the control system of optional distributed energy, the 3rd DC converter, direct current energy measurement apparatus and the 3rd DC converter, and rate-determining steps is:
The first step: EMS monitors power and the electricity of electric energy measurement terminal, the first device for measurement of electrical energy, direct current energy measurement apparatus, energy-storage battery and direct-current charging post respectively by the summary table power computation module P1 that registers one's residence, straight-flow system power computation module P2, micro-origin system power computation module P3, energy-storage battery dump energy computing module P4, charge power computing module P5；
Second step: determine whether that electric automobile is charged, without, determine whether the dump energy P4 of energy-storage battery, if dump energy is not reaching to 100%, then control the second DC converter by the control system of the second DC converter energy-storage battery is charged, be gradually increased the charge power of energy-storage battery by controlling the control system of the second DC converter；Judging whether the reading of electric energy measurement terminal is Pall and judges whether charge power is PBr simultaneously, meet these two one therein and then stop increasing charge power, PBr is the specified charge power of battery, and Pall is the full-load power registered one's residence；Judge energy-storage battery dump energy constantly, and be charged patten transformation according to the charging curve of battery simultaneously, when dump energy is 100%, stop charging；In this charging process, EMS sends PA order by controlling module to PCS, controls energy converter and carries out power conversion, its conversion power command PA=-(P3-PBr)；
3rd step: determine whether that electric automobile is charged, if there being charging electric vehicle, judge the charge mode that user selects: if selecting trickle charge pattern simultaneously, then control the first DC converter by the control system of the first DC converter to be charged to electric automobile, charge power is PS, controls module by PCS simultaneously and controls the power P A=-(P3-PS) of energy converter；If what user selected is fast mold filling formula, now first passing through the control system of the first DC converter and control the first DC converter and be charged to electric automobile, charge power is PQ, will do following judgement and control simultaneously:
1): if P3 > PQ, then control the power P A=-(P3-PQ) of energy converter；
2): if P3 < PQ, then control the power P C=-PBr of the second DC converter, control the power P A=-(P3+PBr-PQ) of energy converter；
3): if P1 > Pall, then control midget relay control contactor and disconnect, increase charging capacity by reducing load.
Preferably, energy-storage battery is used for doing the supplementary power supply of fast mold filling formula to electric automobile, and fast mold filling formula is the charging of classification constant current mode, is divided into for three stages from small to large according to the charge volume of electric automobile: the first stage is charge volume 0～70%, large current charge, charging current is 20 amperes to 100 amperes；Second stage is charge volume 70～95%, low current charge, and charging current is 10 amperes to 20 amperes；Phase III is charge volume 95～100%, more low current charge, and charging current is less than 10 amperes；Wherein energy-storage battery participates in the charging process of first stage.
Preferably, adopt independent control mode that optional distributed energy is controlled, control mode is: system can according to the power generation situation of optional distributed energy, the reading of real-time judge household electric meter module 101, as ascending power Pup=Pall, the instruction reducing the control system of the 3rd DC converter reduces the transform power of the 3rd DC converter, and wherein ascending power Pup is drawn by summary table power computation module P1 measurement of registering one's residence.
Beneficial effects of the present invention:
Domestic quick charge device provided by the invention and control method thereof be not when increasing family's distribution capacity, it is achieved home-use electric vehicle rapid charging equipment.This invention solves the problem that domestic distribution cannot install the quick charge device of electric motor car, the method can active balance customer charge and the effect as stand-by power supply, this cover system has reserved access interface also for the optional distributed energy of family, facilitates the access of the new forms of energy such as solar energy (distributed photovoltaic), wind energy (small-sized fan).This patent of invention is equally applicable to densely populated living area and shopping centre, while not increasing the distribution system in these regions, builds fast charge equipment.
Additionally, energy-storage battery can select retired electrokinetic cell, provide a kind of approach for waste battery recycling.For general electric automobile after using 3-5, the electricity of electrokinetic cell will taper to original 50%-60%, and this battery just cannot meet the continuation of the journey needs of electric automobile.But, the echelon for electrokinetic cell utilizes, and domestic quick charge device is just met for needs, namely stores about the 50%-60% that electricity is electric automobile electricity, and charging and discharging currents is consistent with the requirement of electrokinetic cell.
Accompanying drawing explanation
Fig. 1 is single-phase quick charge device structure diagram in the embodiment of the present invention.
Fig. 2 is three-phase quick charge device structure diagram in the embodiment of the present invention.
Description of reference numerals:
null101-electric energy measurement terminal、102-registers one's residence chopper、103-the first chopper、104-the second chopper、105-catalyst、106-the 4th chopper、107-surge protector、108-the 3rd chopper、109-residual current operated protective device、110-the first device for measurement of electrical energy、111-energy converter、112-direct current energy measurement apparatus、113-the 3rd DC converter、114-the second DC converter、115-the first DC converter、The optional distributed energy of 116-、117-energy-storage battery、118-direct-current charging post、119-registers one's residence summary table power computation module P1、120-straight-flow system power computation module P2、The micro-origin system power computation module P3 of 121-、122-energy-storage battery dump energy computing module P4、123-midget relay、124-EMS、125-PCS controls module、The control system of 126-the first DC converter、The control system of 127-the second DC converter、The control system of 128-the 3rd DC converter、129-charge power computing module P5、130-the first control signal PA、131-the second control signal PB、132-the 3rd control signal PC.
Detailed description of the invention
Below in conjunction with specific embodiment, the invention will be further described.
In conjunction with Fig. 1, embodiment 1: a kind of single-phase quick charge device, it includes the electric energy measurement terminal (101) registered one's residence, the chopper of registering one's residence (102) that the outfan of electric energy measurement terminal (101) connects, electric energy measurement terminal (101) can measure bidirectional power, its major function is exactly measure the active power of all of electric loading, the power of port by wired or wireless transmission means, can be flowed to EMS (124) by this active power；The major function of chopper (102) of registering one's residence is when excessive by electric loading or when there are the malfunctions such as electric leakage; chopper (102) of registering one's residence is protected timely; this chopper of registering one's residence (102) is held quantitative limitation by distribution, will not be very big；In the solution of the present invention, it is not necessary to change the model of tradition electric energy measurement terminal (101) and chopper of registering one's residence (102).Register one's residence chopper (102) outlet connect two parts, a part comprises normal domestic use load: illuminates class load, air-conditioning class load and can turn off class load, wherein illumination class load connects, by the first chopper (103), chopper (102) of registering one's residence, air-conditioning class load connects, by the second chopper (104), chopper (102) of registering one's residence, and can turn off class load and connect, by catalyst (105), chopper (102) of registering one's residence；Register one's residence chopper (102) outlet connect another part be the 3rd chopper (108); being the protective breaker for energy-storage battery (117) and direct-current charging post (118), the 3rd chopper (108) is without configuring according to the power of direct-current charging post (118)；3rd chopper (108) connects residual current operated protective device (109), and residual current operated protective device (109) is a kind of effective safeguard procedures preventing person electric shock, electrical fire and electrical equipment from damaging；Residual current operated protective device (109) connects the first device for measurement of electrical energy (110), and the first device for measurement of electrical energy (110) is used for the power summation measuring energy-storage battery (117) and direct-current charging post (118)；First device for measurement of electrical energy (110) connects energy converter (111), energy converter (111) is also referred to as PCS, it is used between direct current and exchange and carries out energy variation, it is possible not only to control the direction of energy by control mode flexibly, the size of energy can also be controlled, control the module (125) break-make to energy converter (111) internal power switching device by PCS to be controlled, utilize the flowing size and Orientation controlling energy that PWM mode is real-time；Energy converter (111) connects energy-storage battery (117) by the second DC converter (114) on the one hand, direct-current charging post (118) is connected on the other hand by the first DC converter (115), first DC converter (115) is used for regulating the amplitude of DC voltage, the function of this module can also be completed by direct-current charging post, and therefore this module can carry out option and installment according to the function of direct-current charging post；Second DC converter (114) is used for controlling energy-storage battery (117) charge or discharge；Direct-current charging post (118), also referred to as quick charge stake, is used for being charged to electric automobile；Performance number and charge value are transmitted to EMS (124) by electric energy measurement terminal (101), the first device for measurement of electrical energy (110), energy-storage battery (117), direct-current charging post (118) respectively through the summary table power computation module P1 (119) that registers one's residence, straight-flow system power computation module P2 (120), energy-storage battery dump energy computing module P4 (122), charge power computing module P5 (129)；EMS (124) respectively to PCS control module (125), the control system (126) of the first DC converter, the second DC converter control system (127) export the first control signal PA (130), the second control signal PB (131), the 3rd control signal PC (132)；Described EMS (124) is by midget relay (123) control contactor (105).
In preferred embodiment, it also includes optional distributed energy (116), 3rd DC converter (113), the control system (128) of direct current energy measurement apparatus (112) and the 3rd DC converter, described energy converter (111) sequentially passes through direct current energy measurement apparatus (112), 3rd DC converter (113) connects optional distributed energy (116) afterwards, direct current energy measurement apparatus (112) is by micro-origin system power computation module P3 (121) transmission power value to EMS (124), EMS (124) exports the 4th control signal PD to the control system (128) of the 3rd DC converter.
In preferred embodiment, described optional distributed energy (116) includes wind energy, solar energy.
In preferred embodiment, described energy-storage battery (117) is retired electrokinetic cell.
In preferred embodiment, described turn off class load and include heating load, washing machine and decorative lighting.In power system capacity deficiency or when peak of power consumption, take the mode cut off the electricity supply to reduce load, more capacity can be provided to critical load on the one hand, electricity cost can also be reduced by electricity price between peak and valley on the other hand.
In preferred embodiment, described in register one's residence between chopper (102) and the 3rd chopper (108) by connect the 4th chopper (106) and surge protector (107) ground connection afterwards.It is used for protecting charging system safety, it is prevented that the infringement that system is caused by thunderbolt.
A kind of control method of domestic quick charge device, in conjunction with single-phase quick charge device as described in Example 1, rate-determining steps is:
The first step: EMS (124) monitors power and the electricity of electric energy measurement terminal (101), the first device for measurement of electrical energy (110), energy-storage battery (117) and direct-current charging post (118) respectively by register one's residence summary table power computation module P1 (119), straight-flow system power computation module P2 (120), energy-storage battery dump energy computing module P4 (122), charge power computing module P5 (129)；
Second step: determine whether that electric automobile is charged, without, determine whether the dump energy P4 of energy-storage battery (117), if dump energy is not reaching to 100%, then control the second DC converter (114) by the control system (127) of the second DC converter energy-storage battery (117) is charged, be gradually increased the charge power of energy-storage battery (117) by controlling the control system (127) of the second DC converter；Judging whether the reading of electric energy measurement terminal (101) is Pall and judges whether charge power is PBr simultaneously, meet these two one therein and then stop increasing charge power, PBr is the specified charge power of battery, and Pall is the full-load power registered one's residence；Constantly judge energy-storage battery (117) dump energy simultaneously, and be charged patten transformation according to the charging curve of battery, when dump energy is 100%, stop charging；In this charging process, EMS sends PA order by controlling module (125) to PCS, controls energy converter (111) and carries out power conversion, and it changes power command PA=PBr；
3rd step: determine whether that electric automobile is charged, if there being charging electric vehicle, judge the charge mode that user selects: if selecting trickle charge pattern simultaneously, then control the first DC converter (115) by the control system (126) of the first DC converter to be charged to electric automobile, charge power is PS, controls module (125) by PCS simultaneously and controls the power P A=PS of energy converter (111)；If what user selected is fast mold filling formula, now first pass through the control system (126) of the first DC converter to control the first DC converter (115) and be charged to electric automobile, charge power is PQ, control the power P C=-PBr of the second DC converter (114), control the power P A=-(PBr-PQ) of energy converter (111)；And if judge P1 > Pall, then control midget relay (123) control contactor (105) disconnect, by reduce load increase charging capacity.
In preferred embodiment, charging device also includes the control system (128) of optional distributed energy (116), the 3rd DC converter (113), direct current energy measurement apparatus (112) and the 3rd DC converter, and rate-determining steps is:
The first step: EMS (124) is by registering one's residence summary table power computation module P1 (119), straight-flow system power computation module P2(120), micro-origin system power computation module P3(121), energy-storage battery dump energy computing module P4(122), charge power computing module P5(129) power of monitoring electric energy measurement terminal (101), the first device for measurement of electrical energy (110), direct current energy measurement apparatus (112), energy-storage battery (117) and direct-current charging post (118) and electricity respectively, micro-origin system is optional distributed energy；
Second step: determine whether that electric automobile is charged, without, determine whether the dump energy P4 of energy-storage battery (117), if dump energy is not reaching to 100%, then control the second DC converter (114) by the control system (127) of the second DC converter energy-storage battery (117) is charged, be gradually increased the charge power of energy-storage battery (117) by controlling the control system (127) of the second DC converter；Judging whether the reading of electric energy measurement terminal (101) is Pall and judges whether charge power is PBr simultaneously, meet these two one therein and then stop increasing charge power, PBr is the specified charge power of battery, and Pall is the full-load power registered one's residence；Constantly judge energy-storage battery (117) dump energy simultaneously, and be charged patten transformation according to the charging curve of battery, when dump energy is 100%, stop charging；In this charging process, EMS sends PA order by controlling module (125) to PCS, controls energy converter (111) and carries out power conversion, its conversion power command PA=-(P3-PBr)；
3rd step: determine whether that electric automobile is charged, if there being charging electric vehicle, judge the charge mode that user selects: if selecting trickle charge pattern simultaneously, then control the first DC converter (115) by the control system (126) of the first DC converter to be charged to electric automobile, charge power is PS, controls module (125) by PCS simultaneously and controls the power P A=-(P3-PS of energy converter (111))；If what user selected is fast mold filling formula, now first passing through the control system (126) of the first DC converter and control the first DC converter (115) and be charged to electric automobile, charge power is PQ, will do following judgement and control simultaneously:
1): if P3 > PQ, then control the power P A=-(P3-PQ of energy converter (111))；
2): if P3 < PQ, then control the power P C=-PBr of the second DC converter (114), control the power P A=-(P3+PBr-PQ of energy converter (111))；
3): if P1 > Pall, then control midget relay (123) control contactor (105) and disconnect, increase charging capacity by reducing load.
In preferred embodiment, energy-storage battery (117) is used for doing the supplementary power supply of fast mold filling formula to electric automobile, fast mold filling formula is the charging of classification constant current mode, charge volume according to electric automobile was divided into for three stages from small to large: the first stage is charge volume 0～70%, large current charge, charging current is 20 amperes to 100 amperes；Second stage is charge volume 70～95%, low current charge, and charging current is 10 amperes to 20 amperes；Phase III is charge volume 95～100%, more low current charge, and charging current is less than 10 amperes；Wherein energy-storage battery (117) participates in the charging process of first stage.
In preferred embodiment, adopt independent control mode that optional distributed energy (116) is controlled, control mode is: system can according to the power generation situation of optional distributed energy (116), the reading of real-time judge household electric meter module 101, as ascending power Pup=Pall, the instruction reducing the control system (128) of the 3rd DC converter reduces the transform power of the 3rd DC converter (113), and wherein ascending power Pup is measured by the summary table power computation module P1 (119) that registers one's residence and draws.
In conjunction with Fig. 2 and embodiment 1, technical scheme disclosed in this invention is equally applicable when three-phase electricity is registered one's residence.
Technical scheme disclosed in this invention is equally applicable to densely populated living area and shopping centre, while not increasing the distribution system in these regions, builds fast charge equipment.
Above example is merely to illustrate technical scheme; but not limiting the scope of the invention; although having made to explain to the present invention with reference to preferred embodiment; it will be understood by those within the art that; technical scheme can be modified or equivalent replacement, without deviating from the spirit and scope of technical solution of the present invention.
Part that the present invention does not relate to is all same as the prior art maybe can adopt prior art to be realized.
Claims (10)
1. a domestic quick charge device, it includes the electric energy measurement terminal (101) registered one's residence, the chopper of registering one's residence (102) that the outfan of electric energy measurement terminal (101) connects, register one's residence chopper (102) outlet connect two parts, a part comprises normal domestic use load: illumination class load, air-conditioning class load and class load can be turned off, wherein illumination class load connects, by the first chopper (103), chopper (102) of registering one's residence, air-conditioning class load connects, by the second chopper (104), chopper (102) of registering one's residence, class load can be turned off and connect, by catalyst (105), chopper (102) of registering one's residence；Another part that the outlet of chopper (102) of it is characterized in that registering one's residence connects is the 3rd chopper (108); 3rd chopper (108) connects residual current operated protective device (109); residual current operated protective device (109) connects the first device for measurement of electrical energy (110), and the first device for measurement of electrical energy (110) connects energy converter (111)；Energy converter (111) connects energy-storage battery (117) by the second DC converter (114) on the one hand, connects direct-current charging post (118) by the first DC converter (115) on the other hand；Performance number and charge value are transmitted to EMS (124) by electric energy measurement terminal (101), the first device for measurement of electrical energy (110), energy-storage battery (117), direct-current charging post (118) respectively through the summary table power computation module P1 (119) that registers one's residence, straight-flow system power computation module P2 (120), energy-storage battery dump energy computing module P4 (122), charge power computing module P5 (129)；EMS (124) respectively to PCS control module (125), the control system (126) of the first DC converter, the second DC converter control system (127) export the first control signal PA (130), the second control signal PB (131), the 3rd control signal PC (132)；Described EMS (124) is by midget relay (123) control contactor (105).
2. a kind of domestic quick charge device according to claim 1, it is characterized in that it also includes optional distributed energy (116), 3rd DC converter (113), the control system (128) of direct current energy measurement apparatus (112) and the 3rd DC converter, described energy converter (111) sequentially passes through direct current energy measurement apparatus (112), 3rd DC converter (113) connects optional distributed energy (116) afterwards, direct current energy measurement apparatus (112) is by micro-origin system power computation module P3 (121) transmission power value to EMS (124), EMS (124) exports the 4th control signal PD to the control system (128) of the 3rd DC converter.
3. a kind of domestic quick charge device according to claim 2, it is characterised in that described optional distributed energy (116) includes wind energy, solar energy.
4. a kind of domestic quick charge device according to claim 1, it is characterised in that described energy-storage battery (117) is retired electrokinetic cell.
5. a kind of domestic quick charge device according to claim 1, it is characterised in that described turn off class load and include heating load, washing machine and decorative lighting.
6. a kind of domestic quick charge device according to claim 1, it is characterised in that described in register one's residence between chopper (102) and the 3rd chopper (108) by the 4th chopper (106) of series connection and surge protector (107) ground connection afterwards.
7. a control method for domestic quick charge device, based on the domestic quick charge device described in claim 1, it is characterised in that rate-determining steps is:
The first step: EMS (124) monitors power and the electricity of electric energy measurement terminal (101), the first device for measurement of electrical energy (110), energy-storage battery (117) and direct-current charging post (118) respectively by register one's residence summary table power computation module P1 (119), straight-flow system power computation module P2 (120), energy-storage battery dump energy computing module P4 (122), charge power computing module P5 (129)；
Second step: determine whether that electric automobile is charged, without, determine whether the dump energy P4 of energy-storage battery (117), if dump energy is not reaching to 100%, then control the second DC converter (114) by the control system (127) of the second DC converter energy-storage battery (117) is charged, be gradually increased the charge power of energy-storage battery (117) by controlling the control system (127) of the second DC converter；Judging whether the reading of electric energy measurement terminal (101) is Pall and judges whether charge power is PBr simultaneously, meet these two one therein and then stop increasing charge power, PBr is the specified charge power of battery, and Pall is the full-load power registered one's residence；Constantly judge energy-storage battery (117) dump energy simultaneously, and be charged patten transformation according to the charging curve of battery, when dump energy is 100%, stop charging；In this charging process, EMS sends PA order by controlling module (125) to PCS, controls energy converter (111) and carries out power conversion, and it changes power command PA=PBr；
3rd step: determine whether that electric automobile is charged, if there being charging electric vehicle, judge the charge mode that user selects: if selecting trickle charge pattern simultaneously, then control the first DC converter (115) by the control system (126) of the first DC converter to be charged to electric automobile, charge power is PS, controls module (125) by PCS simultaneously and controls the power P A=PS of energy converter (111)；If what user selected is fast mold filling formula, now first pass through the control system (126) of the first DC converter to control the first DC converter (115) and be charged to electric automobile, charge power is PQ, control the power P C=-PBr of the second DC converter (114), control the power P A=-(PBr-PQ) of energy converter (111)；And if judge P1 > Pall, then control midget relay (123) control contactor (105) disconnect, by reduce load increase charging capacity.
8. the control method of a kind of domestic quick charge device according to claim 7, it is characterized in that charging device also includes the control system (128) of optional distributed energy (116), the 3rd DC converter (113), direct current energy measurement apparatus (112) and the 3rd DC converter, rate-determining steps is:
The first step: EMS (124) is by registering one's residence summary table power computation module P1 (119), straight-flow system power computation module P2 (120), micro-origin system power computation module P3 (121), energy-storage battery dump energy computing module P4 (122), charge power computing module P5 (129) monitors electric energy measurement terminal (101) respectively, first device for measurement of electrical energy (110), direct current energy measurement apparatus (112), the power of energy-storage battery (117) and direct-current charging post (118) and electricity；
Second step: determine whether that electric automobile is charged, without, determine whether the dump energy P4 of energy-storage battery (117), if dump energy is not reaching to 100%, then control the second DC converter (114) by the control system (127) of the second DC converter energy-storage battery (117) is charged, be gradually increased the charge power of energy-storage battery (117) by controlling the control system (127) of the second DC converter；Judging whether the reading of electric energy measurement terminal (101) is Pall and judges whether charge power is PBr simultaneously, meet these two one therein and then stop increasing charge power, PBr is the specified charge power of battery, and Pall is the full-load power registered one's residence；Constantly judge energy-storage battery (117) dump energy simultaneously, and be charged patten transformation according to the charging curve of battery, when dump energy is 100%, stop charging；In this charging process, EMS sends PA order by controlling module (125) to PCS, controls energy converter (111) and carries out power conversion, its conversion power command PA=-(P3-PBr)；
3rd step: determine whether that electric automobile is charged, if there being charging electric vehicle, judge the charge mode that user selects: if selecting trickle charge pattern simultaneously, then control the first DC converter (115) by the control system (126) of the first DC converter to be charged to electric automobile, charge power is PS, controls module (125) by PCS simultaneously and controls the power P A=-(P3-PS) of energy converter (111)；If what user selected is fast mold filling formula, now first pass through the control system (126) of the first DC converter to control the first DC converter (115) and be charged to electric automobile, charge power is PQ, will do following judgement and control simultaneously:
1): if P3 > PQ, then control the power P A=-(P3-PQ) of energy converter (111)；
2): if P3 < PQ, then control the power P C=-PBr of the second DC converter (114), control the power P A=-(P3+PBr-PQ) of energy converter (111)；
3): if P1 > Pall, then control midget relay (123) control contactor (105) and disconnect, increase charging capacity by reducing load.
9. the control method of a kind of domestic quick charge device according to claim 7, it is characterized in that energy-storage battery (117) is used for doing the supplementary power supply of fast mold filling formula to electric automobile, fast mold filling formula is the charging of classification constant current mode, charge volume according to electric automobile was divided into for three stages from small to large: the first stage is charge volume 0～70%, large current charge, charging current is 20 amperes to 100 amperes；Second stage is charge volume 70～95%, low current charge, and charging current is 10 amperes to 20 amperes；Phase III is charge volume 95～100%, more low current charge, and charging current is less than 10 amperes；Wherein energy-storage battery (117) participates in the charging process of first stage.
10. the control method of a kind of domestic quick charge device according to claim 8, it is characterized in that adopting independent control mode that optional distributed energy (116) is controlled, control mode is: system can according to the power generation situation of optional distributed energy (116), the reading of real-time judge household electric meter module 101, as ascending power Pup=Pall, the instruction reducing the control system (128) of the 3rd DC converter reduces the transform power of the 3rd DC converter (113), wherein ascending power Pup is measured by the summary table power computation module P1 (119) that registers one's residence and draws.
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