CN114256965A - Energy router and control method thereof - Google Patents
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- CN114256965A CN114256965A CN202111596372.1A CN202111596372A CN114256965A CN 114256965 A CN114256965 A CN 114256965A CN 202111596372 A CN202111596372 A CN 202111596372A CN 114256965 A CN114256965 A CN 114256965A
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000005611 electricity Effects 0.000 claims abstract description 66
- 238000010248 power generation Methods 0.000 claims description 4
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000002195 synergetic effect Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 54
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000004891 communication Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
-
- 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
- H02J3/008—Circuit arrangements for AC mains or AC distribution networks involving trading of energy or energy transmission rights
-
- 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
- H02J3/02—Circuit arrangements for AC mains or AC distribution networks using a single network for simultaneous distribution of power at different frequencies; using a single network for simultaneous distribution of AC power and of DC power
-
- 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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
-
- 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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/062—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for AC powered loads
-
- 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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/08—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems requiring starting of a prime-mover
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
本发明公开一种能量路由器及其控制方法，其中，能量路由器包括：用于输入燃气电力的气电输入端口和用于输入电网电力的供电输入端口；低压交流电输出端口和高压直流电输出端口；控制器和能量转换器，所述控制器用于根据接收的供电指令，控制所述能量转换器在应急供电模式和经济供电模式之间进行切换。本发明提供的能量路由器可以使用能源管理系统访问电力和燃气价格数据，并能智能管理它们的日常能源消耗；本发明的实施能够缓解电力供应压力，促进多种能源的协同效益，提高智能电网的稳定性。
The invention discloses an energy router and a control method thereof, wherein the energy router comprises: a gas-electric input port for inputting gas power and a power supply input port for inputting grid power; a low-voltage alternating current output port and a high-voltage direct current output port; The controller and the energy converter are configured to control the energy converter to switch between the emergency power supply mode and the economical power supply mode according to the received power supply instruction. The energy router provided by the present invention can use the energy management system to access electricity and gas price data, and can intelligently manage their daily energy consumption; the implementation of the present invention can relieve the pressure of power supply, promote the synergistic benefit of multiple energy sources, and improve the efficiency of smart grids. stability.
Description
Technical Field
The invention belongs to the technical field of energy Internet, and particularly relates to an energy router and a control method thereof.
Background
The rapid growth of renewable energy sources and the access of novel high-power random loads such as electric vehicles have certain difficulties in the operation and control of power systems. To meet these challenges, the trend is toward a complementary gas-electricity integrated energy system by comprehensively utilizing the existing energy infrastructure such as electricity and natural gas from the economical and environmental viewpoints. The gas-electricity complementary comprehensive energy system is an energy network which comprises a plurality of energy coupling sources such as power supply, gas supply and the like, and can realize coordination and optimization of various energy sources such as electric power, natural gas and the like, thereby improving the operation efficiency of the whole energy system.
The energy router is a novel key power distribution device facing the global energy Internet, is a fusion power grid physical system based on a fully flexible framework, has the functions of calculation, communication, accurate control, remote coordination, autonomy, plug and play and the like, and integrates multi-port alternating current and direct current seamless hybrid power distribution and utilization devices with the functions of power quality control, energy management, communication and the like.
Currently, the energy router has no unified implementation standard, has no mature product, and is mostly in an experimental prototype stage. The existing energy router has the defects of high manufacturing difficulty, low power, low efficiency and the like, and also has the problems of high current loss, serious heating, high manufacturing cost, poor equipment compatibility and the like.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide an energy router and a control method thereof, so as to ensure the safety of user power consumption and economic power consumption.
To solve the above technical problem, the present invention provides an energy router, including:
the gas-electricity input port is used for inputting gas-electricity power and the power supply input port is used for inputting power of a power grid;
a low-voltage alternating current output port and a high-voltage direct current output port;
the controller is used for controlling the energy converter to switch between an emergency power supply mode and an economic power supply mode according to the received power supply instruction.
Further, the gas electric input port is used for inputting 380V gas electric power, and the power supply input port is used for inputting 380V power grid electric power.
Further, the low-voltage alternating current output port is specifically a 220V alternating current output port, and the high-voltage direct current output port is specifically a 750V direct current output port.
The invention also provides a control method of the energy router, which comprises the following steps:
a step S1 of providing an energy router according to any one of claims 1-3;
step S2, establishing a time-of-use electricity price function and a time-of-use gas electricity price function according to the trend graph of the daily electricity price and the gas electricity price;
and step S3, judging whether emergency power supply or economic power supply is needed according to the power consumption requirement, and correspondingly switching the power supply mode.
Further, the time-of-use electricity price function f (x) and the time-of-use electricity price function g (x) established in the step S2 are as follows:
wherein x is the power consumption time period in one day, a1、b1、c1、d1、e1、a2、b2、c2Corresponding to electricity prices and gas electricity prices for different time periods.
Further, the time-of-use electricity price function f (x) and the time-of-use gas price function g (x) are specifically:
further, when the electricity utilization time is from 8 hours to 16 hours, the gas electric power is input into the energy router through the power supply input port, and the energy router outputs the gas electric power to the corresponding output port.
Further, the step S3 specifically includes:
step S31, judging whether the received power demand is an emergency power supply instruction, if so, executing step S32, otherwise, executing step S33;
step S32, the energy router is switched to an emergency power supply mode, so that the gas power is input into the energy router through the gas-electric input port and is output to the corresponding output port;
step S33, judging the relationship between the current electricity price and the gas price according to the time-of-use electricity price function and the time-of-use gas electricity price function, if the current electricity price is larger than the gas electricity price, adopting gas for power supply, and enabling the gas electricity to be input into the energy router through the gas-electricity input port and output to the corresponding output port; otherwise, the power is supplied by the power grid, so that the power of the power grid is input into the energy router through the gas-electric input port and is output to the corresponding output port.
Further, the emergency power supply instruction is generated when the power of the power grid is interrupted.
Further, the control method further includes: and under the economic power supply mode, if the starting and stopping cost of the energy router is more than the gas power generation cost, the gas power supply is not adopted.
The implementation of the invention has the following beneficial effects: the invention provides a management scheme for the energy converter between emergency power supply and economic power supply, realizes intelligent management on the energy demand side, and promotes the synergistic benefits of various energy sources; the energy router provided by the invention can access electric power and gas price data by using an energy management system and can intelligently manage the daily energy consumption of the electric power and gas price data; the implementation of the invention can relieve the power supply pressure and improve the stability of the smart grid.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of a routing structure of an energy router according to an embodiment of the present invention.
Fig. 2 is a flowchart illustrating a control method of an energy router according to another embodiment of the present invention.
Fig. 3 is a daily power price and gas price trend chart in the embodiment of the present invention.
Fig. 4 is a graph illustrating the electricity purchase price and the gas purchase price in the example of the present invention.
Fig. 5 is a schematic flow chart of switching between the emergency power supply mode and the economic power supply mode in the embodiment of the present invention.
Detailed Description
The following description of the embodiments refers to the accompanying drawings, which are included to illustrate specific embodiments in which the invention may be practiced.
Referring to fig. 1, an embodiment of the invention provides an energy router, including:
the gas-electricity input port is used for inputting gas-electricity power and the power supply input port is used for inputting power of a power grid;
a low-voltage alternating current output port and a high-voltage direct current output port;
the controller is used for controlling the energy converter to switch between an emergency power supply mode and an economic power supply mode according to the received power supply instruction.
Specifically, in this embodiment, the input end of the energy router is power grid power and gas power, the gas-power input port is used for inputting 380V gas power, and the power supply input port is used for inputting 380V power grid power; the output end meets the load requirements of low-voltage alternating current and high-voltage direct current, the low-voltage alternating current output port is specifically a 220V alternating current output port, and the high-voltage direct current output port is specifically a 750V direct current output port.
Furthermore, the energy router also comprises an alternating current-direct current converter, an inverter, a direct current bus and an energy manager; the AC/DC converter is used for converting AC and DC, the DC bus is mainly a DC port connecting wire, and the energy manager is used for storing management information and executing control of AC/DC conversion.
Referring to fig. 2, an embodiment of the present invention provides a method for controlling an energy router, where the method includes:
step S1, providing an energy router according to the first embodiment of the present invention;
step S2, establishing a time-of-use electricity price function and a real-time gas and electricity price function according to the trend graph of the daily electricity price and the gas and electricity price;
and step S3, judging whether emergency power supply or economic power supply is needed according to the power consumption requirement, and correspondingly switching the power supply mode.
Specifically, fig. 3 is a daily trend chart of electricity prices and gas electricity prices, and it can be seen that the gas electricity prices and the electricity prices are different, thereby forming a time-of-use electricity price function f (x) and a time-of-use gas electricity price function g (x):
wherein x is the power consumption time period in one day, a1、b1、c1、d1、e1、a2、b2、c2Corresponding to electricity prices and gas electricity prices for different time periods. The economic power supply is mainly based on the relationship between the electricity price and the gas electricity price, the low-price power is correspondingly input into the input port of the energy router, for example, the electricity price is low, the power of the power grid is input into the energy router through the power supply input port; if the gas electricity price is low, the gas electricity is input into the energy router through the gas electricity input port.
As an example, the time-of-use electricity price function f (x) and the time-of-use gas price function g (x) are specifically:
it can be understood that the time-of-use electricity price function f (x) and the time-of-use gas price function g (x) are both piecewise functions, and are obtained according to the statistical data of relevant departments, such as the curve diagram of the electricity price and the gas price shown in fig. 4. It can be seen that when the electricity utilization time is from 8 hours to 16 hours, the electricity price is higher than the gas electricity price, and the energy router uses the gas to generate electricity for power utilization.
Please refer to fig. 5, this embodiment provides a switching mechanism between an emergency power supply mode and an economic power supply mode, where the emergency power supply mode can preferentially ensure the power supply requirement of the user, and the economic power supply mode can provide the most economic power for the user in real time. Generally, as described above, the grid power or the gas power is selected to supply power according to the magnitude relation between the electricity price and the gas electricity price; and once the energy router receives the emergency power supply instruction, the emergency power supply mode is switched to, so that the gas power is input into the energy router through the gas-power input port to form a link from the gas power generation to the load terminal. It will be appreciated that emergency power commands are typically generated when grid power is interrupted or emergency power is required for other reasons. Thus, step S3 specifically includes:
step S31, judging whether the received power demand is an emergency power supply instruction, if so, executing step S32, otherwise, executing step S33;
step S32, the energy router is switched to an emergency power supply mode, so that the gas power is input into the energy router through the gas-electric input port and is output to the corresponding output port;
step S33, judging the relationship between the current electricity price and the gas price according to the time-of-use electricity price function and the time-of-use gas electricity price function, if the current electricity price is larger than the gas electricity price, adopting gas for power supply, and enabling the gas electricity to be input into the energy router through the gas-electricity input port and output to the corresponding output port; otherwise, the power is supplied by the power grid, so that the power of the power grid is input into the energy router through the gas-electric input port and is output to the corresponding output port.
The economic power supply mode also considers the start-stop cost of the energy router, the service life of the gas turbine is shortened when the gas turbine is started and stopped for generating power every time, and then some start-stop costs are formed, and if the start-stop costs are larger than the gas power generation costs, the gas turbine is not used for generating power.
Compared with the prior art, the intelligent management system has the advantages that a management scheme is provided for the energy converter between emergency power supply and economic power supply, intelligent management of the energy demand side is achieved, and the synergistic benefits of multiple energy sources are promoted; the energy router provided by the invention can access electric power and gas price data by using an energy management system and can intelligently manage the daily energy consumption of the electric power and gas price data; the implementation of the invention can relieve the power supply pressure and improve the stability of the smart grid.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.
Claims (10)
1. An energy router, comprising:
the gas-electricity input port is used for inputting gas-electricity power and the power supply input port is used for inputting power of a power grid;
a low-voltage alternating current output port and a high-voltage direct current output port;
the controller is used for controlling the energy converter to switch between an emergency power supply mode and an economic power supply mode according to the received power supply instruction.
2. The energy router of claim 1, wherein the gas-electric input port is configured to input 380V of gas-electric power, and the power supply input port is configured to input 380V of grid-electric power.
3. The energy router of claim 1, wherein the low voltage ac output port is in particular a 220V ac output port and the high voltage dc output port is in particular a 750V dc output port.
4. A method for controlling an energy router, comprising:
a step S1 of providing an energy router according to any one of claims 1-3;
step S2, establishing a time-of-use electricity price function and a time-of-use gas electricity price function according to the trend graph of the daily electricity price and the gas electricity price;
and step S3, judging whether emergency power supply or economic power supply is needed according to the power consumption requirement, and correspondingly switching the power supply mode.
5. The control method according to claim 4, wherein the time-of-use electricity price function f (x) and the time-of-use gas price function g (x) established in step S2 are as follows:
wherein x is the power consumption time period in one day, a1、b1、c1、d1、e1、a2、b2、c2Corresponding to electricity prices and gas electricity prices for different time periods.
6. The control method according to claim 5, wherein the time-of-use electricity price function f (x) and the time-of-use gas price function g (x) are specifically:
7. the control method according to claim 6, wherein when the power consumption time is from 8 hours to 16 hours, the gas electric power is input to the energy router through the power supply input port, and the energy router outputs the gas electric power to the corresponding output port.
8. The control method according to claim 4, wherein the step S3 specifically includes:
step S31, judging whether the received power demand is an emergency power supply instruction, if so, executing step S32, otherwise, executing step S33;
step S32, the energy router is switched to an emergency power supply mode, so that the gas power is input into the energy router through the gas-electric input port and is output to the corresponding output port;
step S33, judging the relationship between the current electricity price and the gas price according to the time-of-use electricity price function and the time-of-use gas electricity price function, if the current electricity price is larger than the gas electricity price, adopting gas for power supply, and enabling the gas electricity to be input into the energy router through the gas-electricity input port and output to the corresponding output port; otherwise, the power is supplied by the power grid, so that the power of the power grid is input into the energy router through the gas-electric input port and is output to the corresponding output port.
9. The control method of claim 8, wherein the emergency power command is generated upon a grid power outage.
10. The control method according to claim 4, characterized by further comprising: and under the economic power supply mode, if the starting and stopping cost of the energy router is more than the gas power generation cost, the gas power supply is not adopted.
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| CN202111596372.1A CN114256965A (en) | 2021-12-24 | 2021-12-24 | Energy router and control method thereof |
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| CN202111596372.1A CN114256965A (en) | 2021-12-24 | 2021-12-24 | Energy router and control method thereof |
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| CN209233485U (en) * | 2018-10-23 | 2019-08-09 | 北京燃气能源发展有限公司 | A kind of novel micro-capacitance sensor power supply system |
| CN110276486A (en) * | 2019-06-14 | 2019-09-24 | 国网湖北省电力有限公司电力科学研究院 | A kind of integrated energy system dispatching method based on price incentive |
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2021
- 2021-12-24 CN CN202111596372.1A patent/CN114256965A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130088084A1 (en) * | 2011-10-06 | 2013-04-11 | GCCA Inc. | Networklized DC Power System |
| CN202613843U (en) * | 2012-02-24 | 2012-12-19 | 东南大学 | Alternating current and gas engine parallel connection dual-drive heat pump device |
| CN106253268A (en) * | 2016-08-11 | 2016-12-21 | 国网江西省电力公司电力科学研究院 | Based on many power supplys multi-voltage grade load domestic intelligent energy router device |
| CN209233485U (en) * | 2018-10-23 | 2019-08-09 | 北京燃气能源发展有限公司 | A kind of novel micro-capacitance sensor power supply system |
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