CN102738887A - System and method for intelligently allocating power supply from renewable energy power and grid power - Google Patents
System and method for intelligently allocating power supply from renewable energy power and grid power Download PDFInfo
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention belongs to the field of renewable energy power generation and power supply technology, in particular relates to a system and a method for intelligently allocating power supply from renewable energy power and grid power. The method includes the following steps that: demand signals and normal operation signals of load startup or a large load are acquired through sampling; on-line electric power switch is controlled through an electric control switch and an electric power thermal switch control circuit to realize mutual switch between the grid power and the renewable energy power; and when no power is supplied from the grid power, the renewable energy power, together with an accumulator, supplies power for a load, reducing consumption of the power accumulated in the accumulator. As a result, defects in the prior art and products are overcome; under the precondition that the system and the method intelligently allocate the power supply from the renewable energy power and the grid power to a load with identical electricity consumption and can satisfy requirements of the load, the renewable energy power can be sufficiently and effectively utilized, the system size can be reduced, and investment cost can be decreased, and therefore, the system and the method can provide effective solutions and useful contributions to application of the renewable energy power system.
Description
Technical field
The invention belongs to new forms of energy power generation and power supply technique field, be specifically related to a kind of new forms of energy electric power and electric intelligent allocation electric power system of net and method.
Technical background
New forms of energy electric power is the direction of global evolution, also is an emerging industry, the development space that has broad prospects and continue, especially solar power generation and the fast development just in the world of wind power generation industry.The new forms of energy power system technology is not merely outlying areas without electricity power source is provided; One of and the main development trend of its new forms of energy power system technology; Make existing power consumer be used for substituting tradition (thermoelectricity) electric power exactly; Buy electric power consumption thereby reduce consumer networks, increase the usage ratio of new forms of energy electric power, progressively popularize the application of new forms of energy electric power.
As everyone knows, new forms of energy electric power systems such as photoelectricity, wind-powered electricity generation can be supplied power for user load, when the new forms of energy electric power system is generated electricity, by the new forms of energy power supply, when not having generating, with the power supply of original net electricity.For the electric power system of normal use new forms of energy, prior art is to carry out systems organization and assembly according to the starting power of user power utilization load on system constitutes, and the starting power that has the electric machinery load usually is 3-5 a times of operate as normal power, even more; Adopt through carrying out the inversion power supply after the storage battery electric power storage of accumulate again for the supply power mode prior art; So its powering quantity of the storage battery of accumulate will be when design; With the corresponding increase of the powering quantity of assembly 3-5 doubly above (investigation existing product and system; Usually the battery power capacity is given the loaded work piece 1 hour of 5KW power at normal power supply, if when 6.3KW power, work has only 30 minutes; And when load is carried out work for 8.6KW power; 1 minute power supply capacity of less than is just only arranged), so, be to make it satisfy the power demand that load starts when system design; Need to strengthen system configuration; So just increase the scale that system constitutes greatly, increased cost of investment, reduced investment repayment.
In order to overcome the defective of above-mentioned prior art and product; The present invention proposes a kind of new forms of energy electric power and electric intelligent allocation electric power system of net and method; Utilize new forms of energy electric power and electric power storage to merge power supply and new forms of energy electric power and the net electricity dispensing mode step by step of supplying power of staggering the time; Start required high-power electric weight with the net electrolysis load of determining, and when load normally moves, transfer new forms of energy electric power to.For this purpose; The present invention controls online power conversions through monitoring load electric power variable condition signal and through electric-controlled switch and electric power thermal conversion control circuit; Realization is given the electric power of load starting power by netting the electricity power supply, controls automatically controlled online electric power converter when normally moving the electric on-line conversion of the net of load use is become new forms of energy power supply or accumulate storage battery power supply, makes the new forms of energy power supply system can satisfy load and starts demand; Can reduce system configuration again; Improve the cost performance of system, saved investment, improved investment repayment.
Summary of the invention
In order to overcome the defective of above-mentioned prior art and product, realize the electric intelligent allocation power supply of new forms of energy electric power and net, being equal electricity consumption electric and satisfying under the precondition of its instructions for use, reduce system scale, reduce cost of investment.For this reason; A kind of new forms of energy electric power of the present invention and electric intelligent allocation electric power system of net and method; With method, system is made up of regulator control system module, MPPT and charging module, batteries, inverter module, AC/DC modular converter, electric power thermal conversion control circuit, new forms of energy electric power, user load port set, COM1 and each threshold circuit, each electric-controlled switch and ammeter 1 and ammeter 2; It is characterized in that the regulator control system module links to each other with electric power thermal conversion control circuit, COM1 and each electric-controlled switch; Regulation and control strategy by prestoring makes its break-make through corresponding control command; The allotment of realization electric power; New forms of energy electric power connects MPPT and charging module through electric-controlled switch, connects inverter module through electric-controlled switch, and MPPT links to each other with batteries with charging module; Batteries passing threshold circuit connects MPPT and also links to each other with inverter module through electric-controlled switch with charging module; Batteries also is connected with inverter module through threshold circuit, and inverter module links to each other with electric power thermal conversion control circuit and links to each other with ammeter 2 through electric-controlled switch, and the AC/DC modular converter is connected with charging module with MPPT; Electric power thermal conversion control circuit connects the AC/DC modular converter and connects the user load port set, and connects ammeter 1 through electric-controlled switch.
A kind of new forms of energy electric power according to the invention and electric intelligent allocation electric power system of net and method; Its regulator control system module be by embedded microprocessor circuit, power supply, clock, memory, I/O driving and ON-OFF control circuit, manual control with display driver circuit, COM1 and bus circuit, it is characterized in that the embedded microprocessor circuit links to each other with display driver circuit and COM1 with ON-OFF control circuit, manual control with clock, memory, I/O driving through bus circuit, the embedded microprocessor circuit also is connected with power supply.
A kind of new forms of energy electric power according to the invention and electric intelligent allocation electric power system of net and method; Its regulator control system module characteristic is that also COM1 is provided with two of the standard traffic ports of two-way communication at least; One of them uses for internal system communication connects, and another is the outside connection of system and the use of communicating by letter.
A kind of new forms of energy electric power according to the invention and electric intelligent allocation electric power system of net and method; Its electric power thermal conversion control circuit relatively is made up of with power line change-over circuit, power line port set and unit for electrical property parameters sample circuit microcontroller circuit, power supply, clock, memory, interrupt circuit, I/O drive circuit, analog to digital conversion circuit, COM1, bus circuit and electric power signal; It is characterized in that microcontroller circuit links to each other with power supply; And link to each other with clock, memory, interrupt circuit, I/O drive circuit, analog to digital conversion circuit, COM1 through bus circuit; The I/O drive circuit relatively links to each other with the power line change-over circuit with electric power signal; Electric power signal relatively is connected the power line port set with the power line change-over circuit; Analog to digital conversion circuit is connected with the unit for electrical property parameters sample circuit, and it is many to the power line input/output port that its characteristic is that also the power line port set has, according to the threshold value of built-in threshold circuit; Be communicated with the respective electrical line of force, or respective electrical line of force connected sum broken off according to the control command that microcontroller circuit sends.
A kind of new forms of energy electric power according to the invention and electric intelligent allocation electric power system of net and method; The characteristic of its user load port set is to have duplex feeding input port and multichannel loading connectivity port at least; Every road power supply input port is communicated with part or all of load connectivity port by the control command that the embedded microprocessor circuit sends; Make new forms of energy electric power rationally be the load connectivity port power supply of respective numbers, insufficient section is supplied power by net electricity and another road and is satisfied the load need for electricity.
A kind of new forms of energy electric power according to the invention and electric intelligent allocation electric power system of net and method; It is characterized in that new forms of energy electric power all is connected with the user load port set through electric power thermal conversion control circuit with the net electricity; The different threshold values that system passes through to set are when operate as normal, and new forms of energy electric power is in conducting state, and the net electricity is in the preparation power supply state; When the power of user load port set supplies power greater than new forms of energy electric power; The new forms of energy voltage of power is reduced to be set below the new forms of energy electric power threshold value, and the net piezoelectric voltage is that the new forms of energy power conversions of user load port set power supply becomes the electric power supply of net when being higher than the corresponding grid power threshold value of setting; Interrupt circuit sends interrupt request singal; Notice microcontroller circuit and embedded microprocessor circuit are when the user load port set stablize electricity consumption, by microcontroller circuit and the embedded microprocessor circuit unit for electrical property parameters according to unit for electrical property parameters sample circuit and analog to digital conversion circuit collection; Judges load port group power mode; Distinguish to start electricity consumption and steadily electricity consumption, and the electrical path of the user load port set respective load of working during multi-load, and call the control command that the regulation and control strategy that prestores sends corresponding allotment electric power.When the smooth working of user load port set; When electric power reduces; Control circuit is after the safety time-delay, and will net electric on-line conversion is the new forms of energy power supply, also can be through control power line port set and load port group; Making new forms of energy electric power is part smaller power electric, and the net electricity is the high power load power supply.
A kind of new forms of energy electric power of the present invention and net electric intelligent allocation electric power system and method are learnt the desired signal and normal run signal of load startup or heavy load through sampling; Control online power conversions through electric-controlled switch and electric power thermal conversion control circuit, realization net electricity and new forms of energy electric power are changed each other; And when the net electricity does not have electricity, utilize new forms of energy electric power and electric power storage to merge into electric, reduce the consumption of storage battery electric power storage.Thus; Overcome the defective of above-mentioned prior art and product, realized the electric intelligent allocation power supply of new forms of energy electric power and net, be equal electricity consumption electric and satisfying under the precondition of its instructions for use; Make new forms of energy electric power obtain fully effectively utilizing; Reduce system scale, reduce cost of investment, for the application of new forms of energy electric power system provides effective solution and useful contribution.
Description of drawings
Fig. 1 is new forms of energy electric power and the electric intelligent allocation electric power system principle function schematic block diagram of net;
Fig. 2 is the principle of work and power sketch map of regulator control system module;
Fig. 3 is the principle of work and power sketch map of electric power thermal conversion control circuit.
Embodiment
As examples of implementation, to a kind of new forms of energy electric power and electric intelligent allocation electric power system of net and method afford explanation, still, technology of the present invention and scheme are not limited to the content that present embodiment provides in conjunction with accompanying drawing.
Specific embodiment of the invention accompanying drawings is following; As shown in Figure 1; A kind of new forms of energy electric power and net electric intelligent allocation electric power system and method, system is made up of regulator control system module (1), MPPT and charging module (2), batteries (3), inverter module (4), AC/DC modular converter (5), electric power thermal conversion control circuit (6), new forms of energy electric power (7), user load port set (8), COM1 (12) and threshold circuit (91) and threshold circuit (92), electric-controlled switch (101), electric-controlled switch (102), electric-controlled switch (103), electric-controlled switch (104), electric-controlled switch (105) and ammeter 1 (111) and ammeter 2 (112); It is characterized in that regulator control system module (1) links to each other with electric power thermal conversion control circuit (6), COM1 (12) and electric-controlled switch (101), electric-controlled switch (102), electric-controlled switch (103), electric-controlled switch (104), electric-controlled switch (105); Regulation and control strategy by prestoring makes its break-make through corresponding control command; The allotment of realization electric power; New forms of energy electric power (7) connects MPPT and charging module (2) through electric-controlled switch (101); Connect inverter module (4) through electric-controlled switch (102); MPPT links to each other with batteries (3) with charging module (2), and batteries (3) passing threshold circuit (91) connects MPPT and also links to each other with inverter module (4) through electric-controlled switch (103) with charging module (2), and batteries (3) also is connected with inverter module (4) through threshold circuit (92); Inverter module (4) links to each other with electric power thermal conversion control circuit (6) and links to each other with ammeter 2 (112) through electric-controlled switch (104); AC/DC modular converter (5) is connected with charging module (2) with MPPT, and electric power thermal conversion control circuit (6) connects AC/DC modular converter (5) and connects user load port set (8), and connects ammeter 1 (111) through electric-controlled switch (105).
A kind of new forms of energy electric power according to the invention and electric intelligent allocation electric power system of net and method; Its regulator control system module (1) is as shown in Figure 2; Be by embedded microprocessor circuit (11), power supply (12), clock (13), memory (14), I/O drive with ON-OFF control circuit (15), manual control with display driver circuit (16), COM1 (18) and bus circuit (17), it is characterized in that embedded microprocessor circuit (11) links to each other with display driver circuit (16) and COM1 (18) with ON-OFF control circuit (15), manual control with clock (13), memory (14), I/O driving through bus circuit (17); Embedded microprocessor circuit (11) also is connected with power supply (12); Its characteristic of regulator control system module (1) is that also COM1 (18) is provided with two of the standard traffic ports of two-way communication at least; One of them uses for internal system communication connects, and another is the outside connection of system and the use of communicating by letter.
A kind of new forms of energy electric power according to the invention and electric intelligent allocation electric power system of net and method; Its electric power thermal conversion control circuit (6) is as shown in Figure 3; Relatively form by microcontroller circuit (61), power supply (62), clock (63), memory (64), interrupt circuit (65), I/O drive circuit (66), analog to digital conversion circuit (67), COM1 (68), bus circuit (69) and electric power signal with power line change-over circuit (601), power line port set (602) and unit for electrical property parameters sample circuit (603); It is characterized in that microcontroller circuit (61) links to each other with power supply (62); And link to each other with clock (63), memory (64), interrupt circuit (65), I/O drive circuit (66), analog to digital conversion circuit (67), COM1 (68) through bus circuit (69); I/O drive circuit (66) relatively links to each other with power line change-over circuit (601) with electric power signal; Electric power signal relatively is connected power line port set (602) with power line change-over circuit (601); Analog to digital conversion circuit (67) is connected with unit for electrical property parameters sample circuit (603), and it is many to the power line input/output port that its characteristic is that also power line port set (602) has, according to the threshold value of built-in threshold circuit; Be communicated with the respective electrical line of force, or respective electrical line of force connected sum broken off according to the control command that microcontroller circuit (61) sends.
A kind of new forms of energy electric power according to the invention and electric intelligent allocation electric power system of net and method; In order to make full use of new forms of energy electric power; Its user load port set (8) is provided with duplex feeding input port and multichannel loading connectivity port at least; Every road power supply input port is communicated with part or all of load connectivity port by the control command that embedded microprocessor circuit (11) sends; Make new forms of energy electric power rationally be the load connectivity port power supply of respective numbers, insufficient section is supplied power by net electricity and another road and is satisfied the load need for electricity.
A kind of new forms of energy electric power according to the invention and net electric intelligent allocation electric power system and method are learnt the desired signal and normal run signal of load startup or heavy load through sampling; Control online electric power converter through electric-controlled switch and realize that net electricity and new forms of energy electric power changes each other.For this reason; New forms of energy electric power (7) all is connected with user load port set (8) through electric power thermal conversion control circuit (6) with the net electricity; The different threshold values that system passes through to set are when operate as normal, and new forms of energy electric power (7) is in conducting state, and the net electricity is in the preparation power supply state; The power of user load port set (8) greater than new forms of energy electric power (7) when supplying power; New forms of energy electric power (7) voltage drop is low to moderate to be set below the new forms of energy electric power threshold value, and the net piezoelectric voltage is when being higher than the corresponding grid power threshold value of setting, for the new forms of energy electric power (7) of user load port set (8) power supply converts the electric power supply of net to; Interrupt circuit (65) sends interrupt request singal; Notice microcontroller circuit (61) and embedded microprocessor circuit (11) are when user load port set (8) when stablize electricity consumption, by microcontroller circuit (61) and embedded microprocessor circuit (11) unit for electrical property parameters according to unit for electrical property parameters sample circuit (603) and analog to digital conversion circuit (67) collection; Judges load port group (8) power mode; Distinguish to start electricity consumption and steadily electricity consumption, and the electrical path of user load port set (8) load of working during multi-load, and call the control command that the regulation and control strategy that prestores sends corresponding allotment electric power.When user load port set (8) smooth working; When electric power reduces; Control circuit is after the safety time-delay, and will net electric on-line conversion is new forms of energy electric power (7) power supply, also can be through control power line port set (602) and load port group (8); Make new forms of energy electric power (7) be part smaller power electric, and the net electricity is the high power load power supply.
Claims (6)
1. a new forms of energy electric power and electric intelligent allocation electric power system of net and method, system is made up of regulator control system module (1), MPPT and charging module (2), batteries (3), inverter module (4), AC/DC modular converter (5), electric power thermal conversion control circuit (6), new forms of energy electric power (7), user load port set (8), COM1 (12) and threshold circuit (91) and threshold circuit (92), electric-controlled switch (101), electric-controlled switch (102), electric-controlled switch (103), electric-controlled switch (104), electric-controlled switch (105) and ammeter 1 (111) and ammeter 2 (112); It is characterized in that regulator control system module (1) links to each other with electric power thermal conversion control circuit (6), COM1 (12) and electric-controlled switch (101), electric-controlled switch (102), electric-controlled switch (103), electric-controlled switch (104), electric-controlled switch (105); Regulation and control strategy by prestoring makes its break-make through corresponding control command; The allotment of realization electric power; New forms of energy electric power (7) connects MPPT and charging module (2) through electric-controlled switch (101); Connect inverter module (4) through electric-controlled switch (102); MPPT links to each other with batteries (3) with charging module (2), and batteries (3) passing threshold circuit (91) connects MPPT and also links to each other with inverter module (4) through electric-controlled switch (103) with charging module (2), and batteries (3) also is connected with inverter module (4) through threshold circuit (92); Inverter module (4) links to each other with electric power thermal conversion control circuit (6) and links to each other with ammeter 2 (112) through electric-controlled switch (104); AC/DC modular converter (5) is connected with charging module (2) with MPPT, and electric power thermal conversion control circuit (6) connects AC/DC modular converter (5) and connects user load port set (8), and connects ammeter 1 (111) through electric-controlled switch (105).
2. according to the said a kind of new forms of energy electric power of claim 1 and electric intelligent allocation electric power system of net and method; Its regulator control system module (1) be by embedded microprocessor circuit (11), power supply (12), clock (13), memory (14), I/O drive with ON-OFF control circuit (15), manual control with display driver circuit (16), COM1 (18) and bus circuit (17), it is characterized in that embedded microprocessor circuit (11) links to each other with display driver circuit (16) and COM1 (18) with ON-OFF control circuit (15), manual control with clock (13), memory (14), I/O driving through bus circuit (17), embedded microprocessor circuit (11) also is connected with power supply (12).
3. according to the said a kind of new forms of energy electric power of claim 1 and electric intelligent allocation electric power system of net and method; Its regulator control system module (1) characteristic is that also COM1 (18) is provided with two of the standard traffic ports of two-way communication at least; One of them uses for internal system communication connects, and another is the outside connection of system and the use of communicating by letter.
4. according to the said a kind of new forms of energy electric power of claim 1 and electric intelligent allocation electric power system of net and method; Its electric power thermal conversion control circuit (6) relatively is made up of with power line change-over circuit (601), power line port set (602) and unit for electrical property parameters sample circuit (603) microcontroller circuit (61), power supply (62), clock (63), memory (64), interrupt circuit (65), I/O drive circuit (66), analog to digital conversion circuit (67), COM1 (68), bus circuit (69) and electric power signal; It is characterized in that microcontroller circuit (61) links to each other with power supply (62); And link to each other with clock (63), memory (64), interrupt circuit (65), I/0 drive circuit (66), analog to digital conversion circuit (67), COM1 (68) through bus circuit (69); I/O drive circuit (66) relatively links to each other with power line change-over circuit (601) with electric power signal; Electric power signal relatively is connected power line port set (602) with power line change-over circuit (601); Analog to digital conversion circuit (67) is connected with unit for electrical property parameters sample circuit (603); It is many to the power line input/output port that its characteristic is that also power line port set (602) has; According to the threshold value of built-in threshold circuit, be communicated with the respective electrical line of force, or respective electrical line of force connected sum broken off according to the control command that microcontroller circuit (61) sends.
5. according to the said a kind of new forms of energy electric power of claim 1 and electric intelligent allocation electric power system of net and method; The characteristic of its user load port set (8) is to have duplex feeding input port and multichannel loading connectivity port at least; Every road power supply input port is communicated with part or all of load connectivity port by the control command that embedded microprocessor circuit (11) sends; Make new forms of energy electric power rationally be the load connectivity port power supply of respective numbers, insufficient section is supplied power by net electricity and another road and is satisfied the load need for electricity.
6. according to the said a kind of new forms of energy electric power of claim 1 and electric intelligent allocation electric power system of net and method; It is characterized in that new forms of energy electric power (7) all is connected with user load port set (8) through electric power thermal conversion control circuit (6) with the net electricity; The different threshold values that system passes through to set are when operate as normal, and new forms of energy electric power (7) is in conducting state, and power supply state is prepared in the net electric treatment; The power of user load port set (8) greater than new forms of energy electric power (7) when supplying power; New forms of energy electric power (7) voltage drop is low to moderate to be set below the new forms of energy electric power threshold value, and the net piezoelectric voltage is when being higher than the corresponding grid power threshold value of setting, for the new forms of energy electric power (7) of user load port set (8) power supply converts the electric power supply of net to; Interrupt circuit (65) sends interrupt request singal; Notice microcontroller circuit (61) and embedded microprocessor circuit (11) are when user load port set (8) when stablize electricity consumption, by microcontroller circuit (61) and embedded microprocessor circuit (11) unit for electrical property parameters according to unit for electrical property parameters sample circuit (603) and analog to digital conversion circuit (67) collection; Judges load port group (8) power mode; Distinguish to start electricity consumption and steadily electricity consumption, and the electrical path of user load port set (8) load of working during multi-load, and call the control command that the regulation and control strategy that prestores sends corresponding allotment electric power.When user load port set (8) smooth working; When electric power reduces; Control circuit is after the safety time-delay, and will net electric on-line conversion is new forms of energy electric power (7) power supply, also can be through control (602) and load port group (8); Make new forms of energy electric power (7) be part smaller power electric, and the net electricity is the high power load power supply.
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| WO2015007127A1 (en) * | 2013-07-18 | 2015-01-22 | Li Xiaozhong | Cheap electric system using energy conservation and carbon emission reduction, and method therefor |
| CN106100137A (en) * | 2016-08-16 | 2016-11-09 | 安徽众升电力科技有限公司 | A kind of power supply unit monitoring system |
| CN106160209A (en) * | 2015-03-09 | 2016-11-23 | 周锡卫 | A kind of framework of energy the Internet termination controller |
| CN106208379A (en) * | 2016-08-16 | 2016-12-07 | 安徽众升电力科技有限公司 | A kind of electricity automatic milk feeder |
| CN111130105A (en) * | 2020-01-09 | 2020-05-08 | 珠海格力电器股份有限公司 | Electric equipment control method and device based on constant limit power and control equipment |
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| CN104197576A (en) * | 2014-07-31 | 2014-12-10 | 江苏中核华纬工程设计研究有限公司 | Energy comprehensive utilization system and operation technology thereof |
| CN106160209A (en) * | 2015-03-09 | 2016-11-23 | 周锡卫 | A kind of framework of energy the Internet termination controller |
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