CN105743110A - Operating method for power control system - Google Patents
Operating method for power control system Download PDFInfo
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- CN105743110A CN105743110A CN201610128146.3A CN201610128146A CN105743110A CN 105743110 A CN105743110 A CN 105743110A CN 201610128146 A CN201610128146 A CN 201610128146A CN 105743110 A CN105743110 A CN 105743110A
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- 238000011017 operating method Methods 0.000 title abstract 2
- 238000004146 energy storage Methods 0.000 claims abstract description 74
- 230000005611 electricity Effects 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 17
- 238000001514 detection method Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 5
- 238000005457 optimization Methods 0.000 abstract 1
- 238000012806 monitoring device Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 3
- 238000011068 loading method Methods 0.000 description 3
- 230000009931 harmful effect Effects 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
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Classifications
-
- 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
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- H02J3/005—
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
Disclosed is an operating method for a power control system. The power control system comprises multiple power equipment, a power control apparatus and an energy storage apparatus, wherein each power equipment comprises a priority setting part used for setting the use priorities of the power equipment; the power control system can realize automatic optimization on electric equipment through the energy storage apparatus without lowering the power of the power equipment with priorities; and the purpose of safety, economical efficiency and practicability is fulfilled.
Description
Technical field
The present invention relates to power system, especially relate to electric control system, to prevent the excessive short circuit caused of the electric current in power system or power-off.
Background technology
Power load has illumination, boiler, heater; the polytype loads such as process units; for these, there is the loadtype of different importance rate; Utilities Electric Co. is in the peak of power consumption period; during electric load anxiety; supply of electric power would generally be cut off in subregional; so that the various power load power-off in this region disable; have a strong impact on the daily life of resident; and likely bring beyond thought harmful effect; such as ongoing work is forced to stop, it is impossible to proceeding, causes serious financial consequences.It addition, when the power cuts to limit consumption of non-electricity company, the various electric loadings in household work, and also there will be the situation of over loading simultaneously, thus causing partial short-circuit, the electrical equipment worked is brought harmful effect.
Prior art provide in a power supply network, it is possible to control to be below fixed amount by the amount of power provided, and the method distributing electric power efficiently.As disclosed in CN102341991B, entirety amount of power, by reducing the power consumption of the relatively low electrical equipment of priority, is controlled below fixed amount, thus efficiently distributing electric power, it is to avoid cause the situation of power-off or short circuit by it.But, this technical scheme actually reduces the power consumption of the electrical equipment of low priority, extends the working time of the electrical equipment of low priority and the electrical equipment of low priority long-play under nominal power, it is possible to electrical equipment can be caused to damage, affect performance.
For the defect of technique scheme, the invention provides a kind of electric control system, it is possible to when not reducing electric load, the amount of power provided by power supply controls as below specified quantitative.
Summary of the invention
As one aspect of the present invention, it is provided that the method for work of a kind of electric control system, this electric control system includes: the power equipment connected by wireless or cable via communication network portion；And power control unit, wherein, described power equipment includes: electric power test section, for measuring or obtain the power consumption of described power equipment, wherein, described power control unit includes: current detecting part, for detecting the electric current of the more than one electrical system flowing through power supply；Voltage detection department, for detecting the voltage of power supply；Power system calculation portion, calculates electric power for the detection information according to described current detecting part and described voltage detection department；Transceiver portion, for communicating with described power equipment；Upper limit setting unit, for arranging the higher limit of the electric current flowing through described current detecting part；Priority setting unit, for arranging the use priority of described power equipment；And Electric control instruction unit, for when detecting that the electric current flowing through described current detecting part equals to or more than the current value set by described upper limit setting unit, export warning notice or control instruction to described power equipment output power, it is characterized in that: described electric control system also includes energy storage device, described energy storage device can be charged by described power supply, can use separately as power supply when described energy storage device is connected with power equipment；nullThe method of work of above-mentioned electric control system，Including: (1) is if the operation of described power equipment is the operation relevant with the pattern of power consumption minimizing，Determine whether whether energy storage device is whether charging and electricity are full of，If i () energy storage device is charging or its electricity is full，Then without the inquiry relevant with whether being operable to described power equipment is sent to described power control unit，The operation of described power equipment is directly controlled according to the instruction of this operation,(ii) if energy storage device not charging and its electricity less than，Then whether will be operable to the inquiry transmission extremely described power control unit that described power equipment is relevant，Whether the electric power that described power control unit determines whether to operate described power equipment and reduces enough is charged energy storage device，If being insufficient to energy storage device is charged，Then power control unit only operates described power equipment，If enough energy storage device is charged，Then power control unit operates described power equipment and energy storage device is charged；(2) if the relevant operation of pattern that the operation of described power equipment is power consumption to be increased, then whether will be operable to the inquiry transmission extremely described power control unit that described power equipment is relevant, described power control unit judges that the electric power that this power consumption increases causes whether the electric current after changing exceeds the higher limit arranging electric current of described upper limit setting unit, if (i) without departing from higher limit, then power control unit operates described power equipment；If (ii) beyond higher limit, then power control unit first determines whether that energy storage device is in charging, if in charging, then energy storage device stops charging；Then power control unit judges to stop after charging the electric current of power supply whether beyond the higher limit of electric current, if still beyond the higher limit of electric current, then using the energy storage device supplementary power supply as power equipment；If using energy storage device as after the supplementary power supply of power equipment, the electric current of power supply still above the higher limit of electric current, then determines the mode of operation of different power equipment according to the different priorities of power equipment.
Further, in such scheme, described power equipment is divided into two groups, and first group is the power equipment being only connected with described power supply, and second group is the power equipment being connected with described power supply and described energy storage device；Described first group of power equipment be in operating process can not the equipment of power-off, described second group of power equipment is can the equipment of power-off in operating process；Electric control system also includes switching switch, and described switching switch can disconnect the connection of described second group of power equipment and power supply.
Further, in such scheme, when described energy storage device is as the stand-by power supply of second group of power equipment, described switching switches off the connection of described second group of power equipment and power supply；Power control unit determines the mode of operation of different power equipments in first group of power equipment according to the different priorities of first group of power equipment；When described energy storage device is not as stand-by power supply, described second group of power equipment is connected by described switching switch with described power supply.
Further, in such scheme, also include the second power system calculation portion, when described energy storage device is as the stand-by power supply of second group of power equipment, the total current of second group of power equipment is calculated by the second power system calculation portion, and the total current of this second group of power equipment sends power control unit to by communication module, after including the total current sum of first group of power equipment and the second group of power equipment higher limit that electric current is set less than described upper limit setting unit, described second group of power equipment is connected by switching switch with described power supply, energy storage device is not re-used as the stand-by power supply of second group of power equipment.
Further, in such scheme, described energy storage device also includes electric quantity monitoring device, this electric quantity monitoring device monitors the dump energy of energy storage device in real time, when energy storage device is when as stand-by power supply, if its dump energy is lower than warning electricity, then second group of power equipment is connected by switching switch again with power supply, and power control unit determines the mode of operation of different power equipment according to the different priorities of all power equipments.
Further, in such scheme, the priority of described first group of power equipment is higher than the priority of described second group of power equipment.
Further, in such scheme, described energy storage device also includes time supervision device and discharge monitoring device, if the electricity that described electric quantity monitoring device is monitored in special time period is full, and discharge monitoring device does not monitor this energy storage device and has the operation of electric discharge in this time period, then using the described energy storage device stand-by power supply as second group of power equipment, disconnect the connection of described second group of power equipment and power supply.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the system structure of the electric control system illustrating the present invention.
Fig. 2 is the structural representation of wherein power control unit.
Fig. 3 is the workflow diagram of electric control system of the present invention.
Detailed description of the invention
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic diagram of the system structure of the electric control system illustrating the present invention, in the first embodiment of the present invention, for being provided with current clamp on the power line at the input side place of the single-phase three-wire formula 220V panel 20 introduced, and power control unit 10 measures input current L1 and L2.The output lead of panel 20 is connected to following device: as the power equipment 5 of AC220V system；As AC110V system, the power equipment 1 that is in L1 phase and power equipment 2, what be in L2 phase is connected to energy storage device 30, power equipment 3 and power equipment 4, having switching switch 40 between energy storage device 30 and panel 20, this switching switch 40 is by cutting out or open the connection allowed hand between energy storage device, power equipment 3 and power equipment 4 and panel.Each element in FIG can each arrange radio communication device, it is achieved the intercommunication mutually between each element.As in figure 2 it is shown, power control unit includes 10:L1 current detecting part 11a and L2 current detecting part 11a11b, the electric current interior mutually for detecting L1 and L2；Voltage detection department 12, for detecting L1 phase or the voltage of L2 phase；Power system calculation portion 13, calculates electric power for the detection information according to current detecting part and voltage detection department；Transceiver portion 21, for communicating from different power equipments, energy storage device and switching switch；Upper limit setting unit 15, for arranging the higher limit of the electric current flowing through described L1 or L2 phase；Priority setting unit 16, for arranging the use priority of described power equipment；And Electric control instruction unit 17, for when detecting that the electric current flowing through described current detecting part equals to or more than the current value set by described upper limit setting unit, exporting warning notice or control instruction to described power equipment output power.For stablizing of power system, can including transformator and manostat in the present invention in energy storage device, the control unit in power equipment in the present invention can adopt the control unit shown in IHCH in CN102341991B to realize.
When Fig. 3 illustrates the operation carrying out power equipment in embodiment of the present invention, the workflow of electric control system of the present invention.nullAs shown in Figure 3，First determine whether that the operation of power equipment is the operation that power consumption reduces or increases: (1) if the relevant operation of the pattern that the operation of described power equipment is with power consumption reduces，Determine whether whether energy storage device is whether charging and electricity are full of，If i () energy storage device is charging or its electricity is full，Then without the inquiry relevant with whether being operable to described power equipment is sent to described power control unit，The operation of described power equipment is directly controlled according to the instruction of this operation,(ii) if energy storage device not charging and its electricity less than，Then whether will be operable to the inquiry transmission extremely described power control unit that described power equipment is relevant，Whether the electric power that described power control unit determines whether to operate described power equipment and reduces enough is charged energy storage device，If being insufficient to energy storage device is charged，Then power control unit only operates described power equipment，If enough energy storage device is charged，Then power control unit operates described power equipment and energy storage device is charged；(2) if the relevant operation of pattern that the operation of described power equipment is power consumption to be increased, then whether will be operable to the inquiry transmission extremely described power control unit that described power equipment is relevant, described power control unit judges that the electric power that this power consumption increases causes whether the electric current after changing exceeds the higher limit arranging electric current of described upper limit setting unit, if (i) without departing from higher limit, then power control unit operates described power equipment；If (ii) beyond higher limit, then power control unit first determines whether that energy storage device is in charging, if in charging, then energy storage device stops charging；Then power control unit judges to stop after charging the electric current of power supply whether beyond the higher limit of electric current, if still beyond the higher limit of electric current, then using the energy storage device supplementary power supply as power equipment；If using energy storage device as after the supplementary power supply of power equipment, the electric current of power supply still above the higher limit of electric current, then determines the mode of operation of different power equipment according to the different priorities of power equipment.By the technique scheme of the present invention, by the power equipment of system being divided into two groups and using energy storage device, can when system burden increases, carry out the switching of system loading, thus ensure that the electric current of power supply is less than maximum current, and the use power of power equipment need not be reduced.
In the present embodiment, described power equipment is divided into two groups, and first group is the power equipment 1,2,5 of the power equipment being only connected with described power supply, and second group is the power equipment 3,4 being connected with described power supply and described energy storage device；Owing to needing to carry out the switching of power supply in the process using energy storage device, it is preferred that described first group of power equipment be in operating process can not the equipment of power-off, described second group of power equipment is can the equipment of power-off in operating process.Owing to the supply of electric power of first group of power equipment is relatively stable, it is preferred that when priority is arranged, the priority of first group of power equipment is higher than second group of power equipment.
In the present embodiment, electric control system includes switching switch 40, and it is for disconnecting or connect the connection of described second group of power equipment and power supply.When energy storage device 30 is as the stand-by power supply of second group of power equipment, the connection of the switching switch 40 described second group of power equipment of disconnection and power supply；Power control unit 10 determines the mode of operation of different power equipments in first group of power equipment according to the different priorities of first group of power equipment；When energy storage device 30 is not as stand-by power supply, described in 40 second group of power equipment is connected by switching switch with described power supply.Further, in such scheme, also include the second power system calculation portion 50, when described energy storage device is as the stand-by power supply of second group of power equipment, the total current of second group of power equipment is calculated by the second power system calculation portion 50, and the total current of this second group of power equipment sends power control unit to by communication module, after including the total current sum of first group of power equipment and the second group of power equipment higher limit that electric current is set less than described upper limit setting unit, described second group of power equipment is connected by switching switch with described power supply, energy storage device is not re-used as the stand-by power supply of second group of power equipment.
Owing to the electricity of energy storage device is limited, in order to avoid its as a supplement power supply time electricity situation about exhausting.Preferably, energy storage device 30 can also include electric quantity monitoring device, this electric quantity monitoring device monitors the dump energy of energy storage device in real time, when energy storage device is when as stand-by power supply, if its dump energy is lower than warning electricity, then second group of power equipment is connected by switching switch 40 again with power supply, and power control unit determines the mode of operation of different power equipment according to the different priorities of all power equipments.
Being at underload situation when power system major part, therefore many time, energy storage device is likely to all be filled with electricity and is in idle condition, if energy storage device does not discharge for a long time, it is possible to affect its performance.Further, energy storage device 30 also includes time supervision device and discharge monitoring device, if the electricity that described electric quantity monitoring device is monitored in special time period is full, and discharge monitoring device does not monitor this energy storage device and has the operation of electric discharge in this time period, then using the described energy storage device stand-by power supply as second group of power equipment, disconnect the connection of described second group of power equipment and power supply.
In above-described embodiment only for exemplary expression present disclosure.It addition, those skilled in the art also can do other change in spirit of the present invention, without departing from the technique effect of the present invention.These changes done according to present invention spirit, all should be included within present invention scope required for protection.
Claims (1)
1. the method for work of an electric control system, this electric control system includes: the power equipment connected by wireless or cable via communication network portion and power control unit, wherein, described power equipment includes: electric power test section, for measuring or obtain the power consumption of described power equipment, wherein, described power control unit includes: current detecting part, for detecting the electric current of the more than one electrical system flowing through power supply；Voltage detection department, for detecting the voltage of power supply；Power system calculation portion, calculates electric power for the detection information according to described current detecting part and described voltage detection department；Transceiver portion, for communicating with described power equipment；Upper limit setting unit, for arranging the higher limit of the electric current flowing through described current detecting part；Priority setting unit, for arranging the use priority of described power equipment；And Electric control instruction unit, for when detecting that the electric current flowing through described current detecting part equals to or more than the current value set by described upper limit setting unit, exporting warning notice or control instruction to described power equipment output power,
It is characterized in that: described electric control system also includes energy storage device, described energy storage device can be charged by described power supply, can use separately as power supply when described energy storage device is connected with power equipment；
Described method of work, including:
null(1) if the operation of described power equipment is the operation relevant with the pattern of power consumption minimizing，Determine whether whether energy storage device is whether charging and electricity are full of，If i () energy storage device is charging or its electricity is full，Then without the inquiry relevant with whether being operable to described power equipment is sent to described power control unit，The operation of described power equipment is directly controlled according to the instruction of this operation,(ii) if energy storage device not charging and its electricity less than，Then whether will be operable to the inquiry transmission extremely described power control unit that described power equipment is relevant，Whether the electric power that described power control unit determines whether to operate described power equipment and reduces enough is charged energy storage device，If being insufficient to energy storage device is charged，Then power control unit only operates described power equipment，If enough energy storage device is charged，Then power control unit operates described power equipment and energy storage device is charged；(2) if the relevant operation of pattern that the operation of described power equipment is power consumption to be increased, then whether will be operable to the inquiry transmission extremely described power control unit that described power equipment is relevant, described power control unit judges that the electric power that this power consumption increases causes whether the electric current after changing exceeds the higher limit arranging electric current of described upper limit setting unit, if (i) without departing from higher limit, then power control unit operates described power equipment；If (ii) beyond higher limit, then power control unit first determines whether that energy storage device is in charging, if in charging, then energy storage device stops charging；Then power control unit judges to stop after charging the electric current of power supply whether beyond the higher limit of electric current, if still beyond the higher limit of electric current, then using the energy storage device supplementary power supply as power equipment；If using energy storage device as after the supplementary power supply of power equipment, the electric current of power supply still above the higher limit of electric current, then determines the mode of operation of different power equipment according to the different priorities of power equipment；
Described power equipment is divided into two groups, and first group is the power equipment being only connected with described power supply, and second group is the power equipment being connected with described power supply and described energy storage device；Described first group of power equipment be in operating process can not the equipment of power-off, described second group of power equipment is can the equipment of power-off in operating process；Electric control system also includes switching switch, and described switching switch can disconnect the connection of described second group of power equipment and power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610128146.3A CN105743110A (en) | 2014-10-07 | 2014-10-07 | Operating method for power control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610128146.3A CN105743110A (en) | 2014-10-07 | 2014-10-07 | Operating method for power control system |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410519198.4A Division CN104269874B (en) | 2014-10-07 | 2014-10-07 | A kind of electric control system |
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| Publication Number | Publication Date |
|---|---|
| CN105743110A true CN105743110A (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610128146.3A Withdrawn CN105743110A (en) | 2014-10-07 | 2014-10-07 | Operating method for power control system |
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| CN (1) | CN105743110A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108919004A (en) * | 2018-07-09 | 2018-11-30 | 宝鸡文理学院 | A kind of distribution power automation terminal protection Model test Method |
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| CN1639943A (en) * | 2002-03-06 | 2005-07-13 | 松下电器产业株式会社 | Setting device of distributed energy supply system |
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| CN102341991A (en) * | 2009-01-06 | 2012-02-01 | 松下电器产业株式会社 | Power control system and method and program for controlling power control system |
| CN103078355A (en) * | 2011-10-26 | 2013-05-01 | 无锡华润上华科技有限公司 | Battery discharging circuit system |
| CN103270665A (en) * | 2010-12-24 | 2013-08-28 | 日本电气株式会社 | Power control system and power control method therefor, and power gateway apparatus and power control method therefor |
| EP2738035A1 (en) * | 2012-11-28 | 2014-06-04 | Sandvik Mining and Construction Oy | A method and an arrangement for controlling power supply in an electric mining unit, and a method for controlling power supply in a mining unit, as well as a mining unit |
| CN103904735A (en) * | 2014-03-11 | 2014-07-02 | 哈尔滨工程大学 | Energy storage subsystem used for batch-type renewable energy source power generation system and control method of energy storage subsystem |
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2014
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1639943A (en) * | 2002-03-06 | 2005-07-13 | 松下电器产业株式会社 | Setting device of distributed energy supply system |
| CN200959526Y (en) * | 2006-08-15 | 2007-10-10 | 邱顶殷 | Household power supply device |
| CN102341991A (en) * | 2009-01-06 | 2012-02-01 | 松下电器产业株式会社 | Power control system and method and program for controlling power control system |
| CN103270665A (en) * | 2010-12-24 | 2013-08-28 | 日本电气株式会社 | Power control system and power control method therefor, and power gateway apparatus and power control method therefor |
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Application publication date: 20160706 |
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