Summary of the invention
The objective of the invention is to propose a kind of control device (being referred to as the electric energy router here) of realizing being incorporated into the power networks distributed power source management and distributed power source and load optimized coupling moving; In order to realize various distributed power sources be incorporated into the power networks management and with the optimization of load coupling, thereby set up that efficiency is higher, the supply and demand intelligent power distribution network of balance more.
The present invention realizes through following technical scheme:
A kind of electric energy router comprises control unit, wireless module, input and electric energy metrical module, switch arrays and router port, wherein,
Described router port comprises a plurality of power ports and a plurality of load port; Each port has unique port numbers; Each power port can connect the phase in a single phase poaer supply or the three phase mains; Each load port can connect the phase in a single-phase load or the threephase load, and described power port comprises civil power power source special port and a plurality of common power port, can these ports be coupled together through described switch arrays; Connected mode is: do not connect mutually between the different common power ports; Do not connect mutually between the different load ports, each common power port can link to each other with the civil power private port through switch arrays, is used to make the power supply except that civil power can realize the power supply of being incorporated into the power networks; Each power port can link to each other with load port through switch arrays; For described load port, can realize following connection: single phase poaer supply can only link to each other with single-phase load, three phase mains each mutually must with each corresponding connection of threephase load; Three phase mains can be connected with single-phase load, but can not all single-phase loads all be connected to a certain phase in the three phase mains;
Described input and electric energy metrical module are arranged on the junction of router port and switch arrays, comprise that a plurality of power supply signals detect with electric energy metrical port and a plurality of load signal to detect and the electric energy metrical port; Each power supply signal detects with electric energy metrical port and load signal detection and includes current detecting unit, voltage detection unit and energy information processing unit with the electric energy metrical port; Current detecting unit is used to detect the coupled power port or the electric current of load port; Voltage detection unit is used to detect the coupled power port or the voltage of load port; The detection signal of two unit is admitted to the energy information processing unit; Power supply signal detects the quality of power supply and the amount of power supply information that calculates coupled power supply with the energy information processing unit of electric energy metrical port according to the detection signal of input; And be transferred to control unit; Load signal detects and the energy information processing unit of electric energy metrical port calculates the usefulness electrical characteristics and the power consumption of coupled load according to the detection signal of importing, and is transferred to control unit;
Switch on the described switch arrays is controlled by control unit;
Described wireless module is connected with control unit, be used to realize the electric energy router be connected to common power port or load port each have communicating by letter between power supply and the load of radio communication function;
Described control unit; According to the quality of power supply information that detects through power supply signal with the power supply that links to each other with the common power port electric energy metrical port processing or that obtain through wireless module; And according to the electrical characteristics of using that detect through load signal with the load that links to each other with the load port electric energy metrical port processing or that obtain through wireless module; Be connected to the coupling of usefulness electrical characteristics of power supply capacity and the load that is connected to load port of the power supply of common power port; Being connected or switching between each power supply of realizing through switch arrays being complementary and the load, and in the process that power supply powers to the load through the electric energy router, carry out the electricity consumption metering.
As preferred implementation, the common power port perhaps is used to connect distributed power source, perhaps is used to connect the power supply port of battery system; Described load port perhaps is used to connect common electrical load, perhaps is used to connect the charging port of battery system; The electric energy router also comprises the ethernet module that is connected with control unit, is used to connect the information system of electric energy router and little electrical network, and communicates with the load that is equipped with ethernet module; Described electric energy router also comprises the human-computer interface module that is connected with control unit, is used to realize various man-machine interactive operation.
The distributed power source that the present invention proposes is incorporated into the power networks and distributes device rationally, in order to realize the optimization coupling operation of power supply and load.Its advantage is: 1) can more sufficiently and reasonably utilize the renewable energy resources, alleviate the peak of power consumption of civil power; 2) be convenient to distribution type renewable energy is effectively monitored and managed, improve the stability and the reliability of power distribution network operation.
Embodiment
Below in conjunction with the accompanying drawing operation principle of the present invention that elaborates.
The invention provides a kind of electric energy route device of realizing being incorporated into the power networks distributed power source management and distributed power source and load optimized coupling moving.
Referring to Fig. 1; The hardware of the electric energy router of present embodiment comprises control unit, wireless module, input and electric energy metrical module, switch arrays and router port, also comprises some wireless modules, ethernet module, human-computer interface module etc. (ethernet module wherein and human-computer interface module are not included in the essential features that realizes electric energy router of the present invention).Power port is divided into civil power private port and common power port, and the latter is used to connect the power supply port of distributed power source or battery system.Control unit is connected with electric energy metrical module, switch arrays with wireless module, ethernet module, human-computer interface module, input, the monitoring function that is used to realize energy management, transfer of data and is directed against each functional module of electric energy router.
Router port comprises a plurality of power ports and a plurality of load port; Each port has unique port numbers; Each power port can connect the phase in a single phase poaer supply or the three phase mains; Each load port can connect the phase in a single-phase load or the threephase load; Described power port comprises civil power power source special port and a plurality of common power ports that are used to be connected distributed power source and storage battery, can common power port and civil power port be coupled together through described switch arrays, to realize generating electricity by way of merging two or more grid systems of distributed energy.
Referring to Fig. 2, input and electric energy metrical module are arranged on the junction of router port and switch arrays, are used for electric current, voltage detecting and the electric energy metrical of corresponding port, but do not influence being connected of router port and switch arrays.If the electric energy router has N power port and M load port; Then input and electric energy metrical module comprise that N power supply signal detection and electric energy metrical port and M load signal detect and the electric energy metrical port; Each power supply signal detects the junction that lays respectively at pairing power port and switch arrays with the electric energy metrical port; And link to each other with control unit; Each load signal detects the junction that lays respectively at pairing load port and switch arrays with the electric energy metrical port, and links to each other with control unit.
Referring to Fig. 3; Each power supply signal detects with electric energy metrical port and load signal detection and includes current detecting unit, voltage detection unit and energy information processing unit with the electric energy metrical port; Current detecting unit is used to detect the coupled power port or the electric current of load port; Voltage detection unit is used to detect the coupled power port or the voltage of load port; The detection signal of two unit is admitted to the energy information processing unit; Power supply signal detects the quality of power supply and the amount of power supply information that calculates coupled power supply with the energy information processing unit of electric energy metrical port according to the detection signal of input; And being transferred to control unit, load signal detects and the energy information processing unit of electric energy metrical port calculates the usefulness electrical characteristics and the power consumption of coupled load according to the detection signal of importing, and is transferred to control unit; For the combining inverter of being furnished with wireless communication module (being connected to the common power port of electric energy router) and load, also can be through wireless module to the power supply information (comprising running status, output voltage, electric current, frequency, power supply quality etc.) of electric energy router transmission power supply or the operating characteristic (running status, input voltage, electric current etc.) of load.
For being applicable to single phase poaer supply and load and having the electric energy router of N power port and M load port among Fig. 2, switch arrays comprise (M*N+N-1) individual switch; Each power port all connects M switch, is used for being connected with each load port; The civil power private port also is connected with the common power port through N-1 switch, is used to realize the distributed power source power supply of being incorporated into the power networks.
Electric energy router among Fig. 4 has a three-phase mains port, a three-phase common power port, two threephase load ports and six single-phase load ports, and switch arrays comprise N/2 switch of (M-1) *.Wherein the three-phase mains port all can be connected with two threephase load ports through switch with three-phase common power port; In addition, each phase of three-phase mains port and three-phase common power port all can be connected with two single-phase load ports through switch.
Among the present invention, do not connect mutually between the different common power ports, do not connect mutually between the different load ports, each common power port can link to each other with the civil power private port through switch arrays, is used to make the power supply except that civil power can realize the power supply of being incorporated into the power networks; Each power port can link to each other with load port through switch arrays.For described load port, can realize following connection: single phase poaer supply can only link to each other with single-phase load, three phase mains each mutually must with each corresponding connection of threephase load; Three phase mains can be connected with single-phase load, but can not all single-phase loads all be connected to a certain phase in the three phase mains.
The energy management functionality that electric energy router of the present invention can be realized is following:
1) control unit is according to the power supply situation of power supply signal detection with the electric energy metrical port power supply that links to each other with the common power port that gathered or that wireless module obtained; And detect the electrical characteristics of using of the load that links to each other with load port gathered with the electric energy metrical port or wireless module obtains according to load signal; The power supply capacity of carrying out common power and load with the coupling of electrical characteristics (if the power supply or the load that link to each other with common power port or load port have ethernet port; Can also obtain the power supply power supply situation or electrical characteristics are used in load through ethernet port), realize being connected or switching between each power supply and the load through switch arrays;
2) operation of other modules in the control unit control electric energy router; Wireless module is connected with control unit, is used to realize communicating by letter between electric energy router and power supply, the load; Ethernet module is connected with control unit, is used to connect the information system of electric energy router and little electrical network; Human-computer interface module is connected with control unit, is used to realize various manual operations (parameter setting, state and data query etc.);
3) input and electric energy metrical module are arranged on the junction of router port and switch arrays; And be connected with control unit; Its effect is: (1) detect the power supply be connected to the electric energy router port power supply situation and load with electrical characteristics and be transferred to control unit, (2) are carried out electricity consumption and are measured and be transferred to control unit in load and power supply and electric energy router connection procedure;
4) switch arrays are connected with router port with control unit, are used to realize being connected or switching between power supply and the load, and being connected or disconnection between distributed power source and the civil power.
It should be noted that in actual embodiment of the present invention distributed power source and storage battery all need just can be connected to electric energy router of the present invention through inverter, and the inverter of storage battery is two-way.The power port of said here connection distributed power source and battery system power supply port and is connected the battery system charging port load mouthful all do not mention inverter; Electric energy router of the present invention has just disposed the port that connects these several kinds of power supplys, but does not dispose corresponding inverter.
Referring to the electric energy router (comprising 4 power ports and 4 load ports) of 8 ports shown in Figure 5, and being connected of various power supply and load.Civil power, photovoltaic DC-to-AC converter, wind-powered electricity generation inverter, storage battery inverter (power supply port) are connected on port one ~ 4 of mains side respectively, and illumination, air-conditioning, notebook, storage battery inverter (charging port) are connected on the port 5 ~ 8 of load-side respectively.The switch arrays of this electric energy router are shown in accompanying drawing 2, and the port one of mains side ~ 4 are connected with the port 5 ~ 8 of load-side through switch 1 ~ 16 respectively.
Referring to Fig. 6-Fig. 8, the practical implementation process that electric energy router of the present invention carries out energy management is following:
1. consider the situation of electric consumption on lighting, suppose that lighting load does not have radio communication function.
1) after the detection module of the port 5 of load-side detects load, sends new load to control unit and insert notice;
2) control unit is inquired about through wireless module, but does not receive and reply, and therefore needs to detect load characteristic through detection module, deposits this information in the load information storehouse;
3) control unit is through the electric power thus supplied of wireless communication module or detection module inquiry power supply, and judgement civil power, photovoltaic generation, wind-powered electricity generation, battery feed all can be supplied power for lighting apparatus.According to the principle of preferential sharp distributed power source, control unit is through the switch 4 of cut-off switch array, and close switch 12 is connected wind-powered electricity generation power supply and lighting load, utilizes wind-powered electricity generation to be illuminalive power-supply;
2. the consideration photo-voltaic power supply supposes that photovoltaic DC-to-AC converter is equipped with wireless communication module.
This moment, photo-voltaic power supply did not connect load, and the energy storage situation of control unit inquiry storage battery is further charged like needs, then with switch 5 closures of switch arrays, utilizes photovoltaic generation for using charge in batteries; Be full of like storage battery, then connect switch 19, photo-voltaic power supply is connected to civil power, realize being incorporated into the power networks.
3. the consideration air conditioning electricity supposes that air-conditioning is equipped with wireless communication module.
When the detection module of the port 6 of load-side detect receive air-conditioning and connect after, send load to control unit and insert notice, control unit is communicated by letter with air-conditioning through wireless module; Inquiry also receives load information; Deposit this information in the load information storehouse, through inquiry power supply power supply state, control unit judges under the present case to have only civil power to satisfy condition; Therefore on off state inconvenience still utilizes civil power to supply power for air-conditioning.
4. consider the notebook computer electricity consumption, suppose that it is equipped with wireless communication module.
After the detection module of the port 7 of load-side detects the load of receiving this port, send new load to control unit and insert notice, control unit is through the wireless module inquiry and receive load information, deposits this information in the load information storehouse.Through inquiry power supply power supply state; Control unit judgement civil power, photovoltaic generation, battery feed all can be supplied power for notebook computer; Control unit is through the switch 2 of cut-off switch array; Close switch 6 is connected photovoltaic generation power supply and notebook computer, utilizes photovoltaic generation to supply power for notebook computer.
5. consider the situation that the regenerative resource power supply ability changes.
The power supply capacity of supposing photovoltaic this moment levels off to zero (because of environment reason), and wind power system still possesses certain power supply capacity.
Because photovoltaic system has not possessed power supply capacity, photovoltaic DC-to-AC converter quits work.Control unit learns that through the detection module of port 2 photovoltaic power generation apparatus breaks off, and photovoltaic generation information is deleted from current power information storehouse.Again through inquiry power supply power supply state, learn that this moment, wind-powered electricity generation can satisfy the supply of electrical energy of notebook computer, the logical switch 6 that cuts off of control unit, close switch 9 is connected wind-powered electricity generation and notebook computer, and utilizing wind-powered electricity generation is that notebook computer is supplied power with illumination simultaneously.