A kind of intelligent socket and its investigating method
Technical field
The invention belongs to jack design fields, and in particular to a kind of intelligent socket for accessing and controlling for customer charge
And investigating method.
Background technology
As the improvement of people's living standards, load type increases, single Alternating Current Power Supply has been unable to meet load
Demand.To DC load or the power supply of the load comprising DC link will generally pass through one or more levels transformation of electrical energy, and converter can
Independently (such as electric automobile charging pile), to be also contained in inside load (such as frequency converter) with load.Current socket be directly from
Power grid lead, converter are often the accessory of load, increase load cost and volume.
Requirement of the user to power quality is higher and higher, and the access of a large amount of nonlinear-loads can generate power grid power quality
Adverse effect, for example harmonic current pollutes, power factor is low etc..Current socket can reflect power grid power levels to negative strictly according to the facts
Lotus may influence the normal work of load if power grid electric energy goes wrong.
Meanwhile energy crisis and environmental pollution getting worse, the following power distribution network is just towards with " distributed energy+internet "
The energy internet development being characterized replaces fossil energy into using network system as core with clean energy resourcies such as solar energy, wind energies
Source, adaptation to local conditions develop the epoch of distributed power generation.The access of user's small distributed power supply becomes urgently to be resolved hurrily with control
Problem.
Therefore, to overcome drawbacks described above, the present invention provides a kind of intelligent sockets for customer charge access and controlling
And investigating method.
Invention content
In order to solve the above-mentioned deficiency in the presence of existing socket, while becoming to meet load and the following power distribution network development
The requirement of gesture, the intelligent socket and investigating method that the present invention provides a kind of to access and control for customer charge, it is intended to solve
The problems such as energy management, the power supply of alternating current-direct current load, the access of distributed generation resource and control, also have the function of wireless charging concurrently.
Technical scheme is as follows:
A kind of intelligent socket, it is improved in that connecting including monitoring and protection module and respectively with monitoring and protection module
Power supply interface module, inverter module, DC converting module, wireless charging module and the energy-storage module connect;
The power supply interface module, for powering for the inverter module, DC converting module and wireless charging module;
The inverter module for being alternating current by DC conversion, and reaches AC port;
The DC converting module, for by the direct current that DC conversion is another grade, reaching DC port;
The wireless charging module provides stable DC for passing through wireless charging port for external charging equipment;
The energy-storage module for storing the energy, and is the inverter module, DC converting module and wireless charging module
Power supply;
The monitoring and protection module is used to monitor the input/output signal of remaining each module;When detecting abnormal signal,
Execute cut-out corresponding module and/or switching power supply module.
Preferably, the monitoring and protection module includes power supply unit, sensor, dsp chip, driving circuit and protection alarm
Circuit;
The sensor, the input and output for measuring remaining each module in addition to monitoring and protection module in intelligent socket are believed
Number, and reach the dsp chip;
The dsp chip, for detecting abnormal signal;For the input/output signal progress to remaining each module
PWM rectifications are handled, and generate pwm control signal;
The driving circuit drives for converting the pwm control signal to drive signal in remaining described each module
Switching tube full-bridge circuit export steady dc voltage;
The protection warning circuit, when abnormal signal for detecting remaining each module when dsp chip, send out therefore
Barrier alarm signal simultaneously cuts off the corresponding module to break down;And/or it is described to send out current failure alarm and control energy-storage module
Inverter module, DC converting module and wireless charging module power supply.
Preferably, the intelligent socket further includes the extension energy-storage module being connect with energy-storage module, is used for and energy-storage module
Joint power supply.
Preferably, the power supply interface module includes transformation of electrical energy circuit and filter;
The transformation of electrical energy circuit includes switching tube full-bridge circuit and inductance, and the filter includes filter capacitor;
The input anode of the switching tube full-bridge circuit is connected with filtering between being connected with the positive and negative anodes of inductance, output end
Capacitance.
Preferably, the inverter module includes inverter circuit, filter and AC port;
The inverter circuit includes switching tube full-bridge circuit, and the filter includes filter inductance and filter capacitor;
The output end of the switching tube full-bridge circuit is connected with AC port, the switching tube global seismic period and AC port
It is equipped with filter inductance and filter capacitor before.
Preferably, the DC converting module includes DC/DC conversion circuit, filter and DC port;
The DC/DC conversion circuit includes that two switching tube full-bridge circuits, resonant inductance, resonant capacitance and high frequency become
Depressor, the filter include filter capacitor;
Output end, the secondary side of the primary side connecting valve pipe full-bridge circuit of the high frequency transformer connect another switching tube
The output head anode of the input terminal of full-bridge circuit, the switching tube full-bridge circuit is connected with resonant inductance and resonant capacitance in turn,
The output end of another switching tube full-bridge circuit is connected with filter capacitor and DC port in turn.
Preferably, the wireless charging module includes radiating circuit, transmitting coil, permeability magnetic material and wireless charging port;
The DC conversion that the radiating circuit exports power supply interface module is high-frequency alternating current, using transmitting coil
It is the electronic equipment charging for being inserted into wireless charging port to generate alternating magnetic field with permeability magnetic material;
The radiating circuit includes switching tube full-bridge circuit.
Preferably, the energy-storage module includes:Voltage conversion circuit, energy storage device, outer energy storage interface;
The voltage conversion circuit includes switching tube full-bridge circuit, the voltage class for making energy storage device and power interface
The output DC voltage level of module matches;
The energy storage device is inverter module, direct current when grid power blackout for storing the energy when power grid works normally
Conversion module and wireless charging module power supply;
The outer energy storage interface, the interface as extension energy-storage module.
Preferably, the abnormal signal includes:Input and output voltage is over-pressed/under-voltage, input and output electric current is excessive/too small,
Temperature is excessively high/too low and fault-signal.
The input and output voltage is over-pressed/under-voltage to be:When more than predeterminated voltage peak, input and/or output are sent out
The signal of electric voltage over press sends out input and/or the under-voltage signal of output voltage when less than predeterminated voltage minimum;
The input and output electric current is excessive/too small to be:When more than predetermined current peak, input and/or output are sent out
The excessive signal of electric current sends out input and/or the too small signal of output current when less than predetermined current minimum;
The temperature is excessively high/too low to be:When temperature be more than preset temperature peak or minimum when, send out temperature it is excessively high or
Too low signal;
The fault-signal:Can successively actual condition occur failure, send out corresponding fault-signal.
Preferably, the input/output signal includes:The input and output direct current of each module in addition to monitoring and protection module
Voltage value and input and output electric current value.
Another object of the present invention is to propose a kind of investigating method of intelligent socket as above, it is improved in that packet
It includes:
When power grid normal power supply, by the power supply interface module of intelligent socket to inverter module, DC converting module and
Wireless charging module is powered;
When grid power blackout, energy-storage module is controlled by the monitoring and protection module of intelligent socket and is become to inverter module, direct current
Block and wireless charging module power supply are changed the mold, and sends out current failure alarm;
When the monitoring and protection module monitors of intelligent socket abnormal signal occur to remaining any one or more module, cut
The module of existing abnormal signal, be concurrently out of order alarm signal;
The inverter module provides stable alternating current to external equipment by AC port, the DC converting module and
Wireless charging module provides stable DC by DC port and wireless charging port to external equipment respectively.
Compared with prior art, beneficial effects of the present invention are:
Grid power blackout may be implemented since power supply interface module and energy-storage module is arranged simultaneously in the intelligent socket of the present invention
When, energy-storage module is switched to by the monitoring and protection module inside intelligent socket and continues as other module for power supply inside socket, therefore
The intelligent socket can be still continuing with when power failure, while the intelligent socket can be used for the power supply and storage of variety classes load
The access of energy equipment;
The intelligent socket of the present invention is by the state of remaining each module of monitoring and protection module monitors, when some or certain module
When being abnormal generation abnormal signal, then corresponding module is cut off, it can be unaffected with the normal module of effective protection intelligent socket.
The intelligent socket of the present invention handles the input/output signal of each module using PWM commutation techniques, can not only ensure
Intelligent socket exports stable DC, moreover it is possible to reduce harmonic current pollution.
Description of the drawings
Fig. 1 is the general structure schematic diagram of the intelligent socket of the present invention;
Fig. 2 is the structural schematic diagram of the power supply interface module of the intelligent socket of the present invention;
Fig. 3 is the structural schematic diagram of the inverter module of the intelligent socket of the present invention;
Fig. 4 is the structural schematic diagram of the DC converting module of the intelligent socket of the present invention;
Fig. 5 is the structural schematic diagram of the wireless charging module of the intelligent socket of the present invention;
Fig. 6 is the structural schematic diagram of the energy-storage module of the intelligent socket of the present invention;
Fig. 7 is the structural schematic diagram of the monitoring and protection module of the intelligent socket of the present invention.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, below in conjunction with drawings and examples, to this
Invention is further elaborated.
The present invention proposes a kind of intelligent socket and investigating method accessed for customer charge with control, can provide friendship
Stream interface and DC interface are powered to variety classes load, can control energy flow direction, are improved power quality, are had concurrently simultaneously
The function of wireless charging can be that electronic equipment charges;Present invention is generally directed to be the more situation of customer charge type, than
Such as family, small-sized workshop, and with the development of power distribution network and DC load, intelligent socket provided by the invention will have more extensively
Application;It is improved the effect of power quality simultaneously.
A kind of intelligent socket accessed for customer charge with control, as shown in Figure 1, being provided by the invention in dotted line frame
The embodiment of intelligent socket, by power supply interface module, inverter module, DC converting module, wireless charging module, energy-storage module and
Monitoring and protection module forms.
By a wire interconnection, energy-storage module can be used as load, consume outer net for power supply interface module and energy-storage module
The energy of offer, while can also be used as power supply and can provide clean energy resource for power grid, it is used for alleviating energy crisis, inversion mould
Block, DC converting module, wireless charging module are connected with power module and energy-storage module respectively by two busbares.Monitoring and protection
Module connects modules, the normal operation for detecting entire intelligent socket circuit by common bus.
For power supply interface module, as shown in Fig. 2, power supply interface module is by net side inductance, switching tube full-bridge circuit, output
Capacitance forms.It is chosen for IGBT for the convenient switching tube herein of mapping, may be other types switching tube depending on actual conditions.It examines
The case where considering normal domestic use, input network voltage are unidirectional voltage, can be changed to three-phase voltage as needed.Using PWM rectifications
Mode, the voltage on line side that monitoring and protection module is measured in real time, electric current and the value for exporting DC voltage are sent into monitoring and protection module
Analysis is calculated, corresponding PWM is sent out to the control terminal of switching tube full-bridge circuit, ensures output DC voltage stability and input side list
Position power rectification.The output of power supply interface module can also be connect with energy storage device, and power is realized by controlling input current
Two-way flow.
For inverter module, as shown in figure 3, inverter module is made of switching tube full-bridge circuit, output inductor capacitance.
It is chosen for IGBT for the convenient switching tube herein of mapping, may be other types switching tube depending on actual conditions.By power interface
Input voltage of the steady dc voltage of module output as inverter module, using SPWM modulation techniques, by monitoring and protection mould
Block measures the virtual value of output AC voltage in real time, is sent into monitoring and protection module and calculates analysis, defeated by changing modulation ratio control
Go out voltage.
For DC converting module as shown in figure 4, DC converting module is by switching tube full-bridge circuit 1, resonant inductance, resonance
Capacitance, high frequency transformer, switching tube full-bridge circuit 2, output capacitance composition.It is chosen for IGBT for the convenient switching tube herein of mapping
And diode, may be other types switching tube depending on actual conditions.The steady dc voltage that power supply interface module is exported
As the input voltage of DC converting module, it is high-frequency alternating current to first pass through switching tube full-bridge circuit inversion, using resonance electricity
Sense, capacitance and high frequency transformer transformation finally pass through diode full-bridge uncontrollable rectifier and export direct current, bulky capacitor is used in combination to filter,
Export constant DC voltage.Using the control strategy for determining duty ratio, frequency modulation, the output direct current that monitoring and protection module is measured in real time
The value of voltage is sent into monitoring and protection module and calculates analysis, and the frequency by changing drive signal adjusts output voltage, according to difference
Load provides different grades of DC voltage.
For wireless charging module as shown in figure 5, wireless charging module by radiating circuit, transmitting coil, permeability magnetic material and
Wireless charging port forms.The effect of radiating circuit is that the DC conversion for exporting power supply interface module is high-frequency alternating current,
It can be realized by switching tube full-bridge circuit inversion;High-frequency alternating current generates alternating magnetic field by coil and permeability magnetic material, to be placed on
The electronic equipments such as mobile phone, the laptop computer of charging platform charge.
For energy-storage module as shown in fig. 6, energy-storage module is by voltage conversion circuit, energy storage device and extends out energy storage interface group
At.Voltage conversion circuit is the voltage class for making energy storage device (such as accumulator) and the output DC voltage of power supply interface module
Grade matching.Voltage conversion circuit can be chopper circuit, can also be the DC transfer circuit of similar Fig. 4;Energy storage device can be with
Electric energy, and expansible external energy storage are provided when input AC electricity or DGs power off.
For monitoring and protection module as shown in fig. 7, monitoring and protection module is by power supply unit, sensor, communication line, DSP
Chip, driving circuit and protection warning circuit composition.Power supply unit can be made of special power-supply device, be each electrical equipment
Normal work provide electric energy;Sensor is used to measure the input/output signal of modules, and passes to DSP by communication line
Chip carries out data processing, the generation of storage and control signal, and wherein dsp chip model is chosen as TMS320F28335, has
Floating-point operation kernel is able to carry out complicated floating-point operation, can save time and the memory space of code execution, have cost
The advantages that low, small power consumption, peripheral hardware integrated level are high, data and program amount of storage are big, A/D conversions are more accurate quick, is provided simultaneously with hair
Send the function of pwm control signal;Driving circuit is made of driving chip and peripheral circuit, and the PWM that dsp chip is sent out controls letter
Number it is converted into drive signal, the switching tube for driving modules;Protect warning circuit can be in grid power blackout by energy storage mould
Block sends out current failure alarm in time when powering, and false alarm letter can also be sent out when dsp chip detects abnormal signal
Number, and circuit is cut off in time.
Based on the same inventive concept of above-mentioned intelligent socket, also propose a kind of observing and controlling of intelligent socket as above in the present embodiment
Method includes the following steps:
When power grid normal power supply, by the power supply interface module of intelligent socket to inverter module, DC converting module and
Wireless charging module is powered;
When grid power blackout, energy-storage module is controlled by the monitoring and protection module of intelligent socket and is become to inverter module, direct current
Block and wireless charging module power supply are changed the mold, and sends out current failure alarm;
When the monitoring and protection module monitors of intelligent socket abnormal signal occur to remaining any one or more module, cut
The module of existing abnormal signal, be concurrently out of order alarm signal;
Inverter module provides stable alternating current, DC converting module and wireless charging to external equipment by AC port
Module provides stable DC by DC port and wireless charging port to external equipment respectively.
Optionally, the sensor based on monitoring and protection module, detects the input/output signal of each module;
Current signal carries out data processing by dsp chip, and generates storage and pwm control signal;
Based on driving circuit, pwm control signal is converted into drive signal, drives the switching tube of each module.
The input/output signal of each module carries out data processing by dsp chip and generates storage and pwm control signal, can
To include as follows;
Based on communication line, the signal is obtained;
Data processing is carried out to the signal, if detect abnormal signal, and immediately by the abnormal signal transmission
Give protection warning circuit;
Storage and pwm control signal are generated according to data processed result.
Based on driving circuit, the pwm control signal is converted into drive signal, drives the switching tube of each module that can wrap
It includes:
Based on the drive signal, stabilization and the energy flow direction of output voltage are controlled.
Control output voltage stabilization may include:Ensure that power supply interface module output steady dc voltage, change are inverse
Become the modulation ratio control output voltage of module and adjusts the output voltage of DC converting module by changing the frequency of drive signal.
It may include being achieved by the steps of to control energy flow direction:
At that time the power supply interface module occur powering off when, send out power alarm;
Based on warning message, control energy-storage module provides energy to the power supply interface module.
Using the intelligent socket of the present embodiment technical solution, compared with existing socket, exchange interface and direct current can be provided
Interface can be used for the power supply of variety classes load, the access of energy storage device;By power electronic technique, energy flow is controlled
Direction both can take electricity from power grid or distributed generation resource, can also be powered by energy storage device when having a power failure, and be simultaneously emitted by power failure report
Alert signal, realizes the function of uninterrupted power supply;By rational control strategy (i.e. PWM commutation techniques), net side work(can be controlled
Rate factor and reduction harmonic current pollution;It has the function of wireless charging concurrently simultaneously, can be that electronic equipment charges.
It should be understood by those skilled in the art that, embodiments herein can be provided as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application
Apply the form of example.Moreover, the application can be used in one or more wherein include computer usable program code computer
The computer program production implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of product.
The application is with reference to method, the flow of equipment (system) and computer program product according to the embodiment of the present application
Figure and/or block diagram describe.It should be understood that can be realized by computer program instructions every first-class in flowchart and/or the block diagram
The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided
Instruct the processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine so that the instruction executed by computer or the processor of other programmable data processing devices is generated for real
The device for the function of being specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that instruction generation stored in the computer readable memory includes referring to
Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device so that count
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, in computer or
The instruction executed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in a box or multiple boxes.
It these are only the embodiment of the present invention, be not intended to restrict the invention, it is all in the spirit and principles in the present invention
Within, any modification, equivalent substitution, improvement and etc. done, be all contained in apply pending scope of the presently claimed invention it
It is interior.