WO2010057947A2 - Procédé assisté par ordinateur permettant d'optimiser l'utilisation de l'énergie dans un système local - Google Patents

Procédé assisté par ordinateur permettant d'optimiser l'utilisation de l'énergie dans un système local Download PDF

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Publication number
WO2010057947A2
WO2010057947A2 PCT/EP2009/065468 EP2009065468W WO2010057947A2 WO 2010057947 A2 WO2010057947 A2 WO 2010057947A2 EP 2009065468 W EP2009065468 W EP 2009065468W WO 2010057947 A2 WO2010057947 A2 WO 2010057947A2
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Prior art keywords
energy
mobile
user
agent
sea
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PCT/EP2009/065468
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German (de)
English (en)
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WO2010057947A3 (fr
WO2010057947A8 (fr
Inventor
Habil Sahin Albayrak
Wolfram MÜNCH
Lars Walch
Thorsten Niehaus
Alois Kessler
Alois Frey
Original Assignee
EnBW Energie Baden-Württemberg AG
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Application filed by EnBW Energie Baden-Württemberg AG filed Critical EnBW Energie Baden-Württemberg AG
Priority to DK09756487.6T priority Critical patent/DK2359453T3/da
Priority to EP09756487.6A priority patent/EP2359453B1/fr
Publication of WO2010057947A2 publication Critical patent/WO2010057947A2/fr
Publication of WO2010057947A3 publication Critical patent/WO2010057947A3/fr
Publication of WO2010057947A8 publication Critical patent/WO2010057947A8/fr

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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
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30—Constructional details of charging stations
    • B60L53/305—Communication interfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60—Monitoring or controlling charging stations
    • B60L53/63—Monitoring or controlling charging stations in response to network capacity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60—Monitoring or controlling charging stations
    • B60L53/67—Controlling two or more charging stations
    • 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
    • H02J1/00—Circuit arrangements for dc mains or dc distribution networks
    • H02J1/10—Parallel operation of dc sources
    • H02J1/106—Parallel operation of dc sources for load balancing, symmetrisation, or sharing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2260/00—Operating Modes
    • B60L2260/40—Control modes
    • B60L2260/50—Control modes by future state prediction
    • B60L2260/54—Energy consumption estimation
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
    • Y04S10/126—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation the energy generation units being or involving electric vehicles [EV] or hybrid vehicles [HEV], i.e. power aggregation of EV or HEV, vehicle to grid arrangements [V2G]

Definitions

  • the invention relates to a decentralized system of energy consumers and energy sources, the use of which is monitored, controlled and optimized by means of a computer-assisted method.
  • US Pat. No. 7,373,222 B1 already discloses a system and method for facilitating dynamic energy management and optimizing the use of energy.
  • the system consists of energy consumers, such as machines, pumps, conveyor belts, etc., which in each case a so-called load controller is assigned, which monitors the energy consumption.
  • the load controllers are spatially distributed, but communicate with each other via a network and with a master controller. It records the total consumption, uses the load controller to determine which energy consumers are not active, and sets the priority of the individual energy consumers in terms of energy allocation. The total energy consumption is compared in real time with a maximum possible or optimal consumption, and if this value is exceeded, load controllers are instructed depending on the priority specifications to switch off the energy consumers assigned to them or to reduce their energy consumption.
  • the functionality of the master controller can also be taken over by a plurality of load controllers, which can work together and be controlled by intelligent software agents.
  • the system according to US 7,373,222 B1 derives its energy only from one source, the public power grid. An attempt is made to avoid the exceeding of a predetermined energy consumption, whereby an adjustment of the energy consumption in the system to the predetermined maximum value takes place solely via the control of the energy consumers, which, depending on the situation, is forced to abort. Switching certain energy consumers leads. The possibilities of using alternative energy sources, including energy storage, are not recognized.
  • the US patent specification US 7,274,975 B2 also describes systems and methods for optimizing energy consumption, but also pursues the goal of combining them with an optimized power supply.
  • the system is controlled by a so-called controller (computer and software) with the aim of minimizing energy costs.
  • controller computer and software
  • the marginal costs for the different stationary energy sources solar cells, fuel cells, energy storage or the public power grid, etc.
  • the capacities of the individual energy sources - with the exception of the public power grid - and the energy demand in the system are determined.
  • a dynamic energy allocation depending on the marginal costs and capacities of the individual energy sources to cover the specified consumption with minimal costs.
  • the possibility is envisaged to put the operation of certain energy consumers in those time intervals in which the energy costs are low.
  • V2Green also sees services for loading and unloading Discharge process so that vehicles can be used not only as an "energy buffer” but also as an energy source for the grid, but the operations can not be decentralized or made on the spot, but always close the grid operator, such as in a field trial Seattle City Light, so here, too, the old concept of a system of regional or supraregional proportions with a network operator is realized, which significantly limits the potential for smoothing the load curve, ie the optimal distribution of the total load.
  • the object of the present invention is to provide a method which enables a distributed, flexible energy management.
  • the objective is to optimize the use of energy and in particular to smooth the load curve for energy consumption in a local system. Further tasks and advantages emerge from the following remarks.
  • the object is achieved by a computer-aided method according to claim 1 for optimizing the use of energy in a system.
  • Such a preferably local system essentially contains the following components:
  • the energy controllers having means for controlling and / or switching circuits
  • one or more measuring devices to measure the energy consumption of energy consumers
  • one or more stationary sources of energy such as photovoltaic systems, wind turbines, combined heat and power plants, etc.
  • stationary energy storage devices one or more fixed docking stations for the connection of the mobile power sources to a system internal power network
  • One or more energy transmission devices which together form an intrinsic energy network, wherein at least the energy consumers, the stations and the energy controller via the system-internal energy network are in communication with each other and wherein it is the internal system energy network preferably an intrinsic power grid.
  • a power transmission device is connected to an external power network, which is preferably the public power supply.
  • the components of the system are preferably arranged inside and / or next to and / or on a building, a building complex or a group of buildings, wherein the building, the building complex or the group of buildings are preferably residential buildings and / or office buildings and / or production sites and / or a district.
  • the computer-assisted method according to the invention is characterized in that it comprises at least the following steps: a) provision of at least three agents, wherein - at least one agent (Smart Energy Agent, SEA) is executed on a computer which is an intrinsic energy network is assigned to which the energy consumers are connected,
  • SEA Smart Energy Agent
  • At least one agent (Car Agent, CA) is executed on a computer associated with a mobile energy source, - at least one agent (Station Agent, SA) is executed on a computer which supports one or more fixed docking stations for b) creating a plan for optimized energy use in the system based on at least the following information:
  • the energy consumers of the system based on the plan drawn up, with the scheme being governed directly or indirectly by an agent, the agent preferably being the SEA.
  • the decision-making processes that are necessary for the efficient use of energy in a system such as a household are thus preferably realized by a distributed multi-agent system.
  • the goal of the system is, among other things, to optimally smooth the load curves in energy consumption and / or to minimize energy costs, among other things by dynamically adding and switching mobile energy sources.
  • the anticipated electricity price at the times T G -T H or a subset thereof the price of electricity being predicted on the basis of the normal tariffs and / or special climate tariffs and / or trading of spot or derivatives products at power exchanges, and / or - the estimated fuel prices at times T G -T H or a subset thereof and the efficiencies of the stationary energy sources operating on the fuels, fuel prices being be predicted on the basis of current fuel prices, and / or
  • the environmental conditions measured at the times Ti-Tc or a subset thereof and the efficiencies of the stationary energy sources using these environmental conditions for energy production preferably being wind force and / or temperature and / or solar radiation and / or or day length, and / or
  • environmental conditions preferably being wind force and / or temperature and / or solar radiation and / or or day length and / or season and / or amount of rainfall, and / or
  • the agents or their associated computers are preferably spatially separated into three main domains: home area, station (ie docking station), and mobile energy source.
  • the home area is the sum of all system components except the stations and the mobile energy sources.
  • one or more of the mobile energy Energy sources in particular batteries, wherein one or more of the mobile energy sources are preferably parts of vehicles, in particular of electric vehicles and / or hybrid vehicles.
  • the terms “vehicle”, “car”, “electric car”, “electric vehicle” or “battery” in addition to the meaning of the words additionally or alternatively (and / or) understood any mobile energy source
  • the term “charge” and “discharge” also generally mean the supply of energy to the mobile energy source and the release of energy from the mobile energy source. the amount of energy (s) available to the mobile energy source (s).
  • the mobile energy sources can autonomously locate connection possibilities or docking stations by means of the CA, log on to and authenticate with these or the SA.
  • the current data on the mobile energy source is exchanged between the agents via interaction protocols.
  • This allows automatic and autonomous detection of the current mobile energy source, such as a vehicle battery, and their states.
  • This technical implementation makes the vehicle and the battery replaceable and the configuration can be changed dynamically. It is also possible to register several vehicles at a docking station.
  • the CAs can coordinate the loading and unloading process without a central control unit and can also locate connection facilities or docking stations in foreign environments and coordinate with the SA on the basis of protocols.
  • an up-to-date usage plan for the battery charge is created, transmitted, and compared with any plans in the home area.
  • the usage plan is based essentially on the current state of the battery and the current plans of the user.
  • the process of discharge is technically controlled by communication via interaction protocols between the agents. These protocols exchange ontologies that contain the necessary up-to-date data for battery discharge. It also synchronizes the power network circuitry on the side of the battery and on the home side.
  • the agents use a software interface on both sides to trigger a circuit.
  • Another aspect is the recognition of the user's personal plans (the home district and / or the mobile energy source), their "energy usage habits" and the determination of a prognosis for future use - Charging the battery at a time low energy costs, realized through dynamic interaction of intelligent agents
  • the agents perform partial tasks in optimizing the use of energy in the system and, through their communicative abilities, are able to cooperate with the other agents of the system and thus the energy balance, i. the use of energy to regulate autonomously.
  • the agents of the system with their tasks and capabilities are identified and their communication described. However, these are merely preferred embodiments. It is clear to the person skilled in the art that, with regard to the agents, deviating tasks or task combinations as well as capabilities or capability combinations and thus also a changed communication between the agents are also possible from the following description.
  • the exchange of information between the agents preferably takes place in the form of ontologies.
  • the data structures describe the relevant facts and aspects of the system and thus enable the communication of the components with regard to problem solving.
  • the essential Properties of the system components can be constantly monitored and checked by these data structures, which allows the targeted action and decision of the system.
  • the following are examples of useful ontologies to aid in illustration. However, it will be clear to those skilled in the art that the invention may be practiced with the aid of other structures or other types of data structures.
  • the vehicle ontology describes essential characteristics of a vehicle or a mobile energy source, including the description of the vehicle owner, user and battery (see Table 1).
  • Battery Ontology describes essential information necessary to monitor the battery (state of charge, manufacturer information etc.) (see Tables 2, 2.1, 2.1.1, 2.1.2 and 2.1.3).
  • the "user ontology” describes essential information concerning the user of the mobile energy source, which is the profile of the user of the mobile energy source, which in particular also contains information about the user's plans regarding the use of the mobile energy source (see Table 3).
  • the "session ontology” describes the necessary information required for session management and billing.
  • the data are mainly collected by the SA.
  • the data structures are modeled in such a way that their instances can be easily stored in databases (see Tables 4 and 4.1).
  • the "HomeEnergy Ontology” describes necessary information concerning the home area of the system (see Table 5).
  • the agents of the system take over the most important decision-making processes of the distributed energy management system. Their main task is to monitor situations, to anticipate the behavior of the system or the user and to optimize the system. Also, errors must be detected and communicated and corrected accordingly.
  • the CA is located on a computer in the vehicle owner's vehicle. There he supervises the charge status of the battery (or batteries) and also has additional information about the activities and plans of the vehicle user. In case of possibly alarming states of the battery (state of charge, discharge) he tries to initiate countermeasures. It communicates with the SA and always tries to give it an up-to-date picture of the state of charge of the battery, so that it can optimally discharge the battery or charge the battery accordingly.
  • the CA is thus responsible for the battery level and its communication, and it monitors other data that exists in the user profiles. For example, the driver profiles (profiles of users of the mobile energy sources) are regularly updated with the routes and the battery capacity needs.
  • the battery charge and discharge limits are always kept up to date and communicated regularly to the SA and / or the SEA.
  • the CA is able to record the charge and discharge of the mobile energy source as well as related activities. For example, if the mobile energy source is a vehicle, the CA can record distances traveled and correlate them with the amount of energy consumed by the duration of the journeys, the energy consumption and energy consumption associated therewith. cost for the future.
  • the CA also has an interface for the user / driver, which can be used to record their interests and cover their information needs.
  • the charging and discharging periods are also set by the CA and it ensures secure communication with the SA. Relevant information is preferably managed in the form of ontologies, with the CA working in particular with the following ontologies: battery, vehicle and user.
  • a computer-assisted method as mentioned above is therefore particularly advantageous if the CA can assume and / or perform at least the following functions:
  • Source include, and / or
  • EQ profile information concerning the user of the mobile energy source (EQ profile), including, in particular, the planned use of the mobile energy source and, in the event that the mobile energy source is a vehicle the planned use is preferably scheduled travel, and / or
  • the SA monitors the processes on the station. It detects when a vehicle is approaching the station and issues a possible docking operation in a handshake.
  • the docking process is preferably only possible for vehicles that hand over the appropriate authentication data in the handshake / negotiation phase.
  • the SA is therefore responsible for, among other things, the docking of mobile energy sources and the authentication of mobile energy sources and / or their CA and serves as the entry point for the communication of the CA or the user of the mobile energy source with the home area, ie the SA represents a communication bridge between CA and SEA. It also logs the charge and discharge of the battery and can answer requests for available capacity. He is able to provide information about loading and unloading logs as well as his own status and login logs. For security reasons, the docking process is associated with a handshake process between SA and CA.
  • the SA works in particular with the following ontologies: Battery, Vehicle, User and Session.
  • a broadcast signal determines whether a mobile energy source of the Station is approaching and / or a mobile power source is present near the station and / or
  • the mobile energy source is connected to the intrinsic energy network by means of a power transmission device, and / or function as a communication bridge between SEA and CA, in particular for the communication of the state of the mobile energy source and / or the amount of energy stored in the mobile energy source to the SEA, and / or
  • the SEA is located in the home area of the user. It brings together all the relevant data streams that affect the user. Via its interface, the user can view all information concerning the energy management (current settings, system state), and he can make any changes in the existing user profile and in particular the user preferences. Taking into account the changes, the SEA creates new rules and thus programs the Smart Energy Controller (SEC), ie the control of the device (energy controller), which regulates the energy flow in the internal energy network.
  • SEC Smart Energy Controller
  • the SEA manages the user's preferences and schedules and programs the SEC with the rules entered by the user. It provides access to the energy controller, performs state queries on the current circuit of the energy controller and makes rule modification.
  • the identification of the user preferably takes place via biometric methods and the SEA maintains a relationship of trust or supports secure communication with the docking station (s) and / or the mobile energy sources or the corresponding agents (SA, CA).
  • the SEA works in particular with the ontologies: User, Battery and Vehicle. It can be seen from the ontologies used which interactions between the agents preferably take place, ie who exchanges which data with whom.
  • Control of the energy flow by control and / or programming of the energy controller wherein it is preferred that the regulation of the energy flow also includes one of the following measures: a targeted power throttling and / or power increase and / or a targeted disconnection and / or or activation of individual energy consumers or groups of energy consumers and / or targeted connection or disconnection of stationary energy sources which are connected to the system-internal energy network, and / or
  • the SEC is responsible for the circuits that involve adding and removing power sources. By activating a circuit, the internal energy network can receive a certain energy source, for example a car Battery, to be added. It controls the energy distributor, ie the energy controller, and thus controls the energy consumption in the system. He is also responsible for power distribution planning. He is also able to record energy consumption to generate predictions about future energy use.
  • the SEC is also responsible for the evaluation of the current state of the system (switching of the energy controller, energy consumption, etc.) based on the rules. The SEC can create a change history of the rule changes and maintains a trust relationship with the SEA. In addition, the SEC has a monitor interface to the SEA so that it can query the circuitry of the power controller.
  • the SEC has an instruction interface for the SEA so that it can (re) program the power controller.
  • the SEC may be an intelligent agent, but this is not necessary due to the modest demands on its capabilities. He works in particular with the HomeEnergy ontology.
  • a computer-aided method as mentioned above is therefore particularly advantageous if the regulation of the energy flow is carried out by a device which has means for controlling and / or switching circuits in the internal power network (energy controller) the energy controller additionally assumes at least the following functions: recording energy consumption by the energy consumers and / or establishing and / or maintaining a secure communication connection to the SEA.
  • the agents coordinate independently. In doing so, they authenticate each other and exchange required data. Authentication is carried out by common public-key methods. In the following, preferred variants of the individual interactions will be described, taking as an example a vehicle as a mobile energy source and an apartment as a system. However, the remarks should also generally include a mobile energy source or, in general, a system.
  • the interaction of CA and SA begins with a login (login) of the CA at the SA and ends with a logout. The session is initiated after the vehicle has docked with the charging station. After the successful handshake (ie mutual authentication), the CA sends data regarding the battery (technical characteristics, condition) as well as data describing driving behavior and consumption. If the physical connection between the vehicle and docking station is disconnected, preferably the communication link is also resolved by mutual agreement.
  • the SA forwards the battery specifications and energy consumption data (driver profile) to the SEA.
  • driver profile the battery specifications and energy consumption data
  • the latter needs this data in order to schedule the discharging and charging of the battery. If the user makes updates to his profile in the apartment, these changes will also be communicated to the SA for forwarding.
  • the latter can also query the current user profile via demand (before uncoupling the vehicle) in order to inform the associated CA.
  • the SEA commissioned the SEC to reprogram the energy controller accordingly. Also, the SEA may initiate unscheduled changes, usually through the initiative of the user, and communicate these to the SEC.
  • the software components should be designed flexibly, ie a management of the software components should be made possible, by which one understands all measures of the runtime environment to ensure a smooth course of the desired functionalities. These include managing the lifecycle of software components, inserting / removing functionality, troubleshooting, monitoring (monitoring) components, and finding each other's components through automated self-directed mechanisms. These mechanisms are part of the runtime environment of the software components and serve in part as information structure for the specific functionalities specified in the transmission of energy in this document.
  • interaction protocols Preferred embodiments of such protocols are described below.
  • the finding of the agents for example finding a CA by an SA, preferably takes place in the environment of an ad hoc network connection. Therefore, the easiest and quickest way to locate an agent of the broadcast, which allows all agents who receive it, to respond to this broadcast request.
  • the initiator makes a request for a broadcast to which a peer receiving this request can respond. As soon as the initiator receives an answer, he can start to establish a session.
  • the session can be established in two different ways. Creating a session serves to maintain the agents' connection with each other and to find out if there are any problems with the communication. There are two variants of session management. In both cases, the session is initiated by the initiator.
  • the PULL mechanism is a normal ping-pong mechanism that is always repeated. At regular intervals, a ping request is always sent from the initiator to the peer. This must respond within a certain time, otherwise the session is discarded and a new search initiated.
  • the PUSH keep alive protocol which is initiated by a corresponding request from the initiator to the peer, the session depends predominantly on the timely delivery of a 'alive' message from the peer to the initiator. If this message is not delivered on time, the initiator discards the session and starts a new search.
  • Interaction protocols are provided, taking into account the current battery level, in particular protocols for discharging the battery, for adjusting the current battery status and for modifying the rule base.
  • the initiator of the protocol is preferably the SEA, which has provided the discharge of a particular battery for a certain calculated time. He must make sure that the corresponding discharge can only be made if the current state of the battery meets the requirements of the discharge. If this is not the case, the discharge can not take place via this battery, but must be done either via another energy source or the request must be recalculated and re-initiated accordingly. The difficulty with this is that the discharge should take place at a certain time, and this time or this period of time must be adhered to as far as possible. If that is not possible, you have to reschedule. Discharge requires the synchronization of two activities. On the one hand, the SEC has to check if he has the required circuit can perform.
  • the adjustment of the battery state can be realized either via a PULL scenario or via a PUSH scenario.
  • the recurring PULL scenario occurs from both SA and SEA.
  • both receive the current battery status on request.
  • the PULL scenario can be advantageous, since if the CA has not responded within the waiting time of the request, a malfunction can be assumed. This can be caused by a possible failure of the communication infrastructure or by another technical malfunction.
  • the battery state is adjusted in a regular PUSH scenario, the CA independently and autonomously transmits the current battery state to both the SA and the SEA.
  • the request for a specific battery discharge capacity may be initiated by the SEA. This constantly checks the energy needs of the user's home.
  • the energy requirement is used to calculate how much of it can be proportionally fed in by the connected mobile energy source (car batteries, etc.). For example, if the mobile energy source is a connected car battery, then a request for a particular capacity is sent to the SA, which subsequently contacts the CA.
  • the connected mobile energy source car batteries, etc.
  • the login and logout process preferably takes place as follows:
  • the communication takes place via a secure W-LAN connection, whereby the Session is initiated after the vehicle has been docked to the station.
  • the reprogramming process requires interaction between SEA and SEC, and may be initiated by the user, for example, by modifying the rule base (user preferences or other plans and rules present in the user profile).
  • the SEA requests the current rule base from the power controller (i.e., the SEC) and releases it to the user for modification. After the modification, the changed rule base is transferred to the Energy Controller.
  • the agents preferably reside on 3 different so-called "nodes", each of which is subject to a specific domain
  • Each node runs in a JVM (Java Virtual Machine), which in turn is in each case on a computer of the vehicle (Car-Node).
  • station station node
  • home node home node
  • the car node is located on a computer within the vehicle, if the mobile power source is a vehicle Car Node is located at the CA, where he / she has access to the internal software mechanisms of the vehicle, so that he or she can obtain current values from the state of charge of the battery From this node, the SA tries to contact and possibly maintain contact with a CA.
  • the home node is located in the home area of the user, where all the data related to the user is stored n merged.
  • Fig.1 representation of the total system, overview over the communication of the
  • Fig.2 Planning of energy use by the SEA
  • Fig.3 Activities of the CA, contact SA
  • Fig. 6 Energy packages that are transferred from the car to the apartment
  • Fig. 7 Energy packages that are transmitted from the grid to the battery
  • FIG. 10 Simplified diagram to illustrate the procedure of the SEA
  • Fig. 11 Battery discharge (Decharge).
  • FIG. 12 Inset: unloading scene (interaction) from FIG. 11. Describes that
  • the following embodiment uses a scenario to exemplify the sequence of operations in the distributed local system. It describes how the system behaves when discharging / charging the battery. But to embed the scenario in the overall process, the description of scenarios is necessary, which can take place independently of the actual discharge. This concerns for example the planning of the discharge by the SEA, which in the example is determined on the basis of user preferences, user history and the current energy use.
  • the planning of an optimized use of energy in the system by the SEA takes place, for example, as shown in FIG. 2.
  • the SEA uses data from different sources for planning. It is the first on the data of the user (201), whose scheduling plays a crucial role in the planning of the SEA. For example, the movement data of the user, eg a planned increased energy consumption in the home or planned extra trips with the vehicle, which make a charge of the mobile energy source necessary, are important. Furthermore, consideration is given to the energy usage history (202), which can be used to estimate the current or future behavior of the user or the current or future energy use. Thirdly, the current use of energy (203) is considered at home. From these three factors, a course of energy use, ie the estimated energy consumption can be predicted (204).
  • a capacity requirement ie a forecast of the anticipated energy requirement (205)
  • the price of electricity procurement from an external power grid is forecasted on the basis of information such as the EEX (European Energy Exchange) Day Ahead (electricity exchange), the Derivatives Market (electricity exchange) or conditions specified in contracts with energy supply companies (RUs) ( 209).
  • EEX European Energy Exchange
  • a forecast of energy production by stationary energy sources or a forecast of the availability of energy from stationary energy sources has to be prepared (210). This depends on the use of photovoltaic systems or wind turbines from the weather and the operation of a small combined heat and power plant from the fuel prices.
  • Some of the SEA activities may be independent of whether or not the mobile energy source (here: vehicle with battery) is connected to the system. For example, conclusions can already be drawn from the energy usage history. However, these should be compared with current data, such as those in the user profile (eg current schedule of the user).
  • the distributed system can only be functional if the components that can be added or removed dynamically (mobile energy sources or CA) can be found and integrated automatically. This is for example a broadcast search mechanism of the SA. Likewise, a broadcast mechanism on the side of the CA is conceivable, but only a variant will be discussed below.
  • CA mobile energy sources
  • the CA is found via a broadcast search (301) of the SA (302). Then a session is established (303) and a login / authentication process is performed (304) between a S A n d C A.
  • the CA is now connected to the distributed energy management and can wait for the battery to charge or discharge (305).
  • information is constantly exchanged between the CA and the rest of the system, especially the SA and the SEA (306). This concerns information about the battery status and the user data (data in the user profiles), which give information about the further plans of the user.
  • the basis of the flexibility of a distributed agent system is the communication between the agents. In turn, it is the basis of the cooperation between the agents.
  • agents For communication and cooperation to work, agents must always have up-to-date knowledge of their neighbors and communication partners. This includes the information, whether the partner still exists, whether he is able to communicate or answer a request. If this is not possible, a troubleshooting or alternative problem solving task should be sought which the system should process.
  • the simplest way to determine the existence of a neighbor is to build an interaction that sends small messages back and forth at regular intervals.
  • the state of regular, uninterrupted communication is referred to as session and maintenance as "Session KeepAlive" or "KeepAlive".
  • the initiator of the session can in principle be any agent.
  • the exchange of such session information thus takes place, for example, between the CA, SA and the SEA.
  • the exchange of this information concerns the use case of the distributed agent system. It ensures that the relevant information is exchanged, which is necessary to operate the distributed energy management. For example, the battery information is exchanged or any application information (data from the user profiles).
  • Interaction protocols are provided, taking into account the current battery level, in particular protocols for discharging the battery, for adjusting the current battery status and for modifying the rule base.
  • the initiator of the protocol is preferably the SEA, which has provided the discharge of a specific battery for a specific calculated time. He must make sure that the corresponding discharge can only be made if the current state of the battery meets the requirements of the discharge. If this is not the case, the discharge can not take place via this battery, but must be done either via another energy source or the request must be recalculated and re-initiated accordingly.
  • the difficulty is that the discharge should take place at a certain time, and this time or period must be kept as far as possible. If that is not possible, you have to reschedule. Discharge requires the synchronization of two activities. On the one hand, the SEC must check whether it can perform the required circuit. If this is not the case, he must send an error message which does not lead to a new time schedule or to the termination of the discharge. Once the SEC has made its circuit, a request can be sent to the SA, which ultimately initiates the discharge. During the entire interaction, the battery charge level must be checked again and again. If the battery is unable to deliver the requested power, the entire process may need to be undone (even after the SEC has successfully completed the circuit). In this case, the possibility remains of a re-planning or a final cancellation.
  • CA Car Agent
  • Forecast price for electricity procurement from external power grid 210 Forecast of energy production by stationary energy sources
  • Threshold i. ideal load profile of the system.
  • Predicted load profile of the home area e.g., an apartment
  • predicted energy consumption represented as energy packets
  • Threshold i. ideal load profile of the system
  • Predicted load profile of the home area ie predicted energy consumption (represented as energy packages). Peak loads, ie energy consumption values above the threshold value are identified (darkly highlighted energy packages - these must be shifted to other times in order to approximate the predicted load profile to the ideal load profile). 601. Threshold, ie ideal load profile of the system.
  • the identified peak loads (energy consumption values of the home area above the threshold value, represented as energy packets) are covered by the fact that energy is transferred from the mobile energy source (eg car) to the home area, ie to the internal energy grid.
  • Threshold i. ideal load profile of the system.
  • the mobile energy source e.g., battery of a car
  • energy represented as energy packets
  • Threshold i. ideal load profile of the system.
  • the load curve of the system has reached the ideal value.
  • CA sends battery status information to the SA
  • SA sends information about existing battery capacity to the SEA 910. If necessary, recreate a plan for optimized energy use in the system by the SEA
  • SEA requests a notification to the power controller when to unload the mobile power source 1103.
  • Power controller sends positive notification regarding the discharge of the mobile power source to SEA
  • SEA informs the SA that a discharge should be made.
  • SA notifies the CA that a discharge should be made.
  • CA checks the battery level (amount of available energy) 1107. CA sends battery status information to the SA
  • SA sends battery status information to the SEA
  • SEA sends request for commencement of discharge to SA 1111.
  • SEA sends request for commencement of discharge to Energy Controller
  • SA sends request to start unloading to the CA.
  • CA checks the battery level
  • CA sends battery status information to SA 1115.
  • SEA sends request to stop discharge to SA
  • SA sends request to stop the discharge to the CA.
  • CA sends positive notification regarding stop of discharge to the SA
  • CA sends battery status information to the SA
  • SA calculates the discharged capacity (ie the amount of energy removed from the battery) 1125.
  • SA sends capacity information to the SEA
  • the SEA requests the circuit to the controller 1202. Possibly the controller will test in advance if a circuit is possible
  • the controller notifies the SEA of the successfully made circuit 1205.
  • the SEA now requests the circuit on the side of the SA (so that the battery of the car can be connected)
  • the SA makes the circuit and the discharge begins
  • the SA notifies the SEA of the connection made

Abstract

L'invention concerne un système décentralisé de consommateurs d'énergie et de sources d'énergie dont l'utilisation est surveillée, commandée et optimisée au moyen d'un procédé assisté par ordinateur. Selon ce procédé, au moins trois agents sont fournis. Un agent est associé à un réseau interne d'alimentation en énergie auquel les consommateurs d'énergie sont raccordés. Un agent est associé à une source d'énergie mobile et au moins un autre agent est exécuté sur l'ordinateur d'une station de raccordement fixe destinée à des sources d'énergie mobiles et raccordée au réseau interne d'alimentation en énergie. Un plan permettant d'optimiser l'utilisation de l'énergie dans le système est établi au moins sur la base de la quantité d'énergie stockée dans la source d'énergie mobile et de la consommation d'énergie dans le système. Le flux d'énergie entre la source d'énergie mobile qui est raccordée à la station de raccordement et les consommateurs d'énergie est régulé sur la base du plan établi. L'étalissement du plan et la régulation du flux d'énergie sont réalisés par les agents mentionnés.
PCT/EP2009/065468 2008-11-21 2009-11-19 Procédé assisté par ordinateur permettant d'optimiser l'utilisation de l'énergie dans un système local WO2010057947A2 (fr)

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DK2359453T3 (da) 2014-07-14
DE102008037575A1 (de) 2010-07-29

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