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53results about How to "Improve power experience" patented technology

Intelligent perception interactive integrated service system

The invention relates to an intelligent perception interactive integrated service system. The system comprises an intelligent perception unit, an intelligent interactive terminal and an intelligent perception interactive cloud computing platform, wherein the intelligent perception unit is used for collecting the perception information of a perception object and sending the perception information to the intelligent perception interactive terminal; the intelligent interactive terminal is used for sending the perception information to the intelligent perception interactive cloud computing platform, receiving service request information input by a user from a user interface and sending the service request information to the intelligent perception interactive cloud computing platform; and the intelligent perception interactive cloud computing platform is used for obtaining electric power data information from an electric power information system and providing service response for the user according to the perception information, the service request information and the electric power data information. The intelligent perception interactive integrated service system provided by the invention has the advantages that the cloud computing platform is fully utilized to combine power grid data resource with perception data of electric equipment of the user and provide energy efficiency analysis or a power utilization scheme for the user, therefore the demands of power consumers for power utilization service is met to the largest extent and the integration of an intelligent power grid with the Internet of things and the Internet is promoted effectively, thus forming interaction between the intelligent power grid and the economic society.
Owner:CHINA ELECTRIC POWER RES INST +1

Remote upgrading method of STS prepayment meter

The invention discloses a remote upgrading method of STS prepayment meter, including the master station which can send communication frames, consisting of an encrypted STS token code; the STS prepayment meter is provided with an authentication; the master station sends upgrading file information frames; the STS prepayment meter determines whether its software programs need to be upgraded; the master station sends upgrading file data frames at different times, following the checking frames every time after sending is completed; the STS prepayment meter stores and checks the upgrading files; and finally, the STS prepayment meter upgrades the software programs of potential upgrades. This method ensures the security of the remote upgrading method of STS prepayment meter by an authentication of the STS standard token code; and achieves the functions of triggering upgrades, sending / re-sending the files and terminating upgrades by extending mature standard protocols, meeting the growing demands of remote upgrades, reducing the upgrading costs and promoting the user experience, additionally, ensuring the stability of the upgrade function through a series of check and backup mechanism.
Owner:WASION GROUP HLDG

Intelligent low-voltage shunt monitoring device

The invention discloses an intelligent low-voltage shunt monitoring device, comprising a data acquisition interface module, a hyperbolic characteristic fitting sampling compensation module, a fault analysis diagnosis and shunt state identification module, a non-contact power consumption monitoring and load prediction module, a function configuration module and a serial port communication module, wherein the data acquisition interface module acquires and stores parameters; the hyperbolic characteristic sampling compensation module performs parameter compensation correction, and then performs shunt fault detection analysis and operating condition identification diagnosis; the non-contact power consumption monitoring and load prediction module performs analysis and prediction; and main control equipment communicates with the function configuration module through the serial port communication module to read and write configuration information and perform transceiving execution on control instructions. The device disclosed by the invention is applied to an intelligent power distribution network, realizes the acquisition of low-voltage branch line loads of end users of the power distribution network and the comprehensive judgment indication of user operating conditions, effectively improves the depth and breadth of information monitoring of a power distribution network system, and improves the reliability of power supply of the power distribution network.
Owner:JIANGSU FRONTIER ELECTRIC TECH +2

Method and system for generating power distribution network black start scheme

The invention provides a method and a system for generating a power distribution network black start scheme. The method comprises the steps of determining the maximum load capability of a power distribution network start power source according to the available devices in the power distribution network and the output characteristics of the power distribution network start power source, generating corresponding network topological structures, selecting the target network topological structure according to a first constraint parameter corresponding to the power distribution network and determining a load connection state and the maximum load capacity, determining the load connected in each of a plurality of power distribution network paths in the target network topological structure according to the load connection state and the maximum load capacity, re-determining a plurality of optional power distribution network paths according to the load in each power distribution network path, searching for feasible power distribution network paths according to a second constraint parameter, and evaluating the feasible power distribution network paths according to evaluation parameters, thereby establishing a target power distribution network. Due to the technical scheme of the method for generating the power distribution network black start scheme, in case of large-area power failure of the power distribution network, power supply to partial loads can be recovered due to the self-start and the independent operation capability of the power distribution network start power source.
Owner:TSINGHUA UNIV +2

Demand response optimization scheduling method and system

The invention discloses a demand response optimization scheduling method and system. The method comprises the steps: obtaining an excitation level of a power grid for participation of a user in demandresponse for each moment based on a pre-built user behavior model and the lowest threshold of a comprehensive participation intention of all users; and based on the excitation level of the power gridto the user participation demand response and a demand response scheduling load prediction total capacity at each moment, performing optimization calculation on the minimum cost of the power grid scheduling demand response to obtain a load resource scheduling mode when the cost is minimum, wherein the user behavior model is constructed based on a relationship between a probability that the user participates in the demand response and the power grid excitation level. The uncertainty of user participation in demand response is considered, and a purpose of optimizing the operation cost of the power grid is achieved based on the relationship between the probability of user participation in demand response and excitation.
Owner:CHINA ELECTRIC POWER RES INST +2

Household host computer and load monitoring and managing method

The present invention discloses a household host computer, a load monitoring and managing system and a method thereof. The present invention can dynamically adjust a user's rated power load according to the total load state of a current user cluster through the control of a load monitoring and managing system. That means the appropriate increase in the user's assigned load, allowing the user to use the electricity above the load, which improves the power using efficiency and using experience of the user cluster.
Owner:ZHUHAI UNILINK TECH CO LTD

Charged installation device for bird dispeller and application method thereof

The invention relates to the technical field of electrical equipment, in particular to a charged installation device for a bird dispeller and an application method thereof. The installation device comprises the reflective rotary bird dispeller, an installation device body and an insulating rod, and is characterized in that the installation device body is arranged below the reflective rotary bird dispeller and comprises a herringbone clamp, sleeve wrenches, a retainer ring, a herringbone clamp ring, a sleeve and a buckle. The installation device has the beneficial effects that the reflection type bird repeller is mounted and dismounted in a charged mode, so that the problems of power failure and terrain limitation can be solved, the electricity utilization experience of a customer is not influenced, and in addition, the installation device can be mounted and dismounted at any time and is convenient to use and efficient.
Owner:DEZHOU LINGCHENG POWER SUPPLY CO OF STATE GRID SHANDONG ELECTRIC POWER CO

Distribution line fault processing method based on 5G communication modules

The invention discloses a power distribution line fault processing method based on 5G communication modules. A power distribution master station, terminal equipment, 5G network communication modules and a line tower are included, the power distribution master station, a regional terminal and a unit terminal are all provided with the 5G network communication modules, the power distribution master station is wirelessly connected with the regional terminal through the 5G network communication modules, and the regional terminal and the unit terminal are wirelessly connected through the 5G network communication module. The beneficial effects of the method are that the unit type terminal and the regional type terminal cooperate with each other through the 5G network communication module, so the accuracy of fault judgment can be improved, the time for fault isolation and non-fault area power supply recovery is shortened, and the workload of operation and maintenance personnel is reduced; the operation states of the line and the intelligent transformer area can be monitored in real time, so operation and maintenance personnel are reminded of problems and risk points existing in line operation, and the frequency of line faults is reduced; and the frequency of short-time power failure of lines is reduced, the service time of equipment is prolonged, and the power utilization experience of users is improved.
Owner:西安兴汇电力科技有限公司

Regional electricity control method and device

ActiveCN107123986ASolve the technical problems of low power consumption efficiency caused by insufficient intelligenceAvoid the disadvantages of not being able to optimize redistribution to make full use ofResourcesSystems intergating technologiesElectricityEngineering
The invention discloses a regional electricity control method and device. The method comprises steps that multiple tolerances used for controlling user electricity in a region are determined, and the tolerances comprise a standard tolerance distributed to users according to predetermined distribution rules, a dispensing tolerance higher than the standard tolerance and a derated tolerance lower than the standard tolerance; through dynamically selecting the determined tolerances of the users, electricity of the users in the region is controlled. The method is advantaged in that a technical problem of non-high electricity efficiency caused by an insufficient intelligentization level existing in a regional electricity control method in the prior art is solved, and electricity experience of the users is improved.
Owner:ZHUHAI UNITECH POWER TECH CO LTD

Electric power peak regulation method, device and equipment for electric quantity limiting area and medium

InactiveCN109784616AImprove power experienceSolve the excessive power consumption in the areaResourcesElectricityUnderclocking
The invention provides an electric power peak regulation method, device and equipment for an electric quantity limiting area and a medium. The method comprises: acquiring the total power consumption of an electric quantity limiting area in a preset period; And under the condition that the total power consumption is higher than the preset total power consumption, controlling a compressor of the variable-frequency air conditioner in the electric quantity limiting area to operate in a frequency reduction manner, so as to limit the total power consumption in the next preset period within the preset total power consumption. the problem that electricity limiting measures are easily caused due to the fact that the electricity consumption of the electricity limiting area in unit time is too high is solved, the probability of causing the electricity limiting measures is reduced, and the electricity utilization experience of electricity users is improved.
Owner:GREE ELECTRIC APPLIANCES INC

Power supply network zone positioning method and device

The invention provides a power supply network zone positioning method and device. The power supply network zone positioning method comprises steps of obtaining a zone signal field intensity value of each power supply node and a carrier beacon field intensity value during a process of communication networking, obtaining a correlation intensity value between each power supply node and other nodes according to the carrier beacon field intensity value of each power supply node, performing analysis on the zone signal field intensity value of each power supply node, determining whether the power supply node receives a signal of the current zone and / or other zones, determining a corresponding correlated intensity threshold value according to a determination result, comparing the correlated intensity value between the power supply node and a source node in the current zone with the correlated intensity threshold value and performing zone positioning on the power supply node according to a comparison result. The power supply network zone positioning method and device are manpower-resource-saving and easy in an execution process and can perform accurate positioning on each zone in the powersupply network, makes the electric power department to perform management on the power supply zone and improves electricity usage experience of residences.
Owner:SHENZHEN FRIENDCOM TECH DEV

Air-conditioner controlling method, device and system and computer storage medium

InactiveCN110553356AImprove the intelligence of electricity consumptionImprove flexible control capabilitiesMechanical apparatusData switching networksCurrent electricResource utilization
The invention discloses an air-conditioner controlling method, device and system and a computer storage medium and belongs to the technical field of intelligent household electrical appliance. The method comprises the steps that a current power adjusting instruction sent by a power server is received, and the power adjusting instruction is generated by the power server according to monitored powergrid load information; According to the corresponding relation between the saved electric energy peak value level and an air-conditioner working mode, the current air-conditioner working mode corresponding to the current electric energy peak value level carried in the current power adjusting instruction is determined; and an air-conditioner signed with the power server is controlled to operate according to the current air-conditioner working mode. In this way, the working mode of the air-conditioner can be controlled according to the power grid load information, thus, the influence of the air-conditioner to the power grid load of the location is reduced, the flexibility regulation ability of a power grid is improved while power utilization intelligence of the air-conditioner is improved,and the reasonable level of electric energy resource utilization is further improved.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD

In-situ feeder fault processing method and system

The invention discloses a local feeder line fault processing method and system, and belongs to the field of power distribution transmission. According to the in-situ feeder fault processing method, after the fault is detected, the in-station switch of the distribution line is triggered to trip, so that all section switches on the corresponding target line are controlled to be switched off; and then the in-station switch is switched on again, and the states of the section switches are controlled according to the positions of the section switches in the target line and based on the detected electric energy data on the two sides of each section switch on the basis of preset logic, so that fault points are isolated, power supply of non-fault sections is recovered, and normal power supply of the non-fault sections is ensured. According to the technical scheme, the in-station switch only needs to trip once, secondary tripping is not needed, the time for recovering power supply of a non-fault line is shortened, secondary power failure of the whole line is not needed, and the power utilization experience of a user is improved.
Owner:SHANGHAI HOLYSTAR INFORMATION TECH

Application method of credit points in shared-power-supply business

InactiveCN107798553AConvenient and fast electricity serviceGood electricity habitsMarketingInformation technology support systemElectricityCredit system
The invention discloses an application method of credit points in shared-power-supply business. A shared-power-supply mobile-phone client on a power service channel is logged in, and identity authentication is carried out; a credit level of an authenticated user in a social credit system is acquired through an internet and the mobile-phone client, and electricity-use behaviors of the authenticateduser in a power system are combined to calculate the credit points according to certain calculation rules and standards; the credit points are automatically recorded and stored by the power system, and are displayed on a unified account of the customer to enable the customer to query the credit points or use the credit points for consumption or guaranteeing; and according to behaviors of the authenticated user and certain calculation rules and standards, the credit points are adjusted in an electricity-use process of the authenticated user or a process of using the credit points by the authenticated user for consumption or guaranteeing. According to the method, a set of safe, convenient, quick, accurate, real-time and transparent temporary electricity-use consumption modes are establishedfor shared power supplies, the credit points are introduced into temporary electricity-use consumption behaviors, electricity-use services are conveniently and quickly provided for the user, good electricity-use habits of the customer are developed at the same time, and value experience of the customer is enhanced.
Owner:STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST +2

Method for processing faults of super-long 10-kV feeder line based on intermediate circuit breaker

The invention relates to a method for processing faults of an ultra-long 10-kV feeder line based on an intermediate circuit breaker. The method is applied to a main line of an ultra-long power distribution line and is characterized in that an outlet circuit breaker CB is arranged at the head end of the main line; a sectional circuit breaker FD1, a sectional circuit breaker FD2, a sectional circuitbreaker FD3 and a sectional circuit breaker FD4 are sequentially arranged on the main circuit from the position close to the outlet circuit breaker CB to the position far away from the outlet circuitbreaker CB; and a middle circuit breaker CB1 is arranged between the sectional circuit breaker FD2 and the sectional circuit breaker FD3. ;According to the invention, the intermediate circuit breakerCB1 is additionally arranged between the FD2 and the FD3, and the intermediate circuit breaker CB1 has the functions of input protection and secondary reclosing, so the function of an outlet circuitbreaker CB in a station is realized, and a short-time power failure of a front section of the line is not caused when a rear section of the line fails and through cooperation of the protection and reclosing functions of the intermediate circuit breaker CB1 and a voltage time type section switch, fault positioning and isolation of the rear section of the line and power restoration of the non-faultsection are realized, so the power utilization experience of a user at the front section and the power supply reliability of the line are improved.
Owner:YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST

Distribution system and power system

The embodiment of the invention provides a distribution system and a power system. The distribution system comprises a three-phase transformer, a single-phase transformer and a flexible compensation device, wherein the three-phase primary side of the three-phase transformer is electrically connected with three high-voltage phase lines of a high-voltage bus respectively for outputting three-phase electric energy corresponding to phase voltage of the three high-voltage phase lines; the primary side of the single-phase transformer is electrically connected with the first high-voltage phase line and the second high-voltage phase line of the high-voltage bus for outputting single-phase electric energy corresponding to line voltage of the above two high-voltage phase lines; and one port of the flexible compensation device is electrically connected with the secondary side of the single-phase transformer, and the other port is electrically connected with the secondary side, capable of outputting electric energy corresponding to the phase voltage of the third high-voltage phase line, in the three-phase transformer. The distribution system and the power system have the advantages that the line loss is small; the power supply quality is high; the power supply reliability is high; power consumption demands by rural residents can be met; and the power consumption experience of the rural residents can be improved.
Owner:成都交达电气有限公司

Electric energy processing method and device, unit energy system and energy system

InactiveCN107508301AImprove power experienceSolve technical problems that cannot realize the transaction of electric energySingle network parallel feeding arrangementsAc network load balancingAutomotive engineeringElectric energy
The invention discloses an electric energy processing method and device, a unit energy system and an energy system. The electric energy processing method comprises steps of obtaining an electric energy state in the unit energy system, determining whether to trigger a preset strategy at least according to an electric energy condition and controlling the unit energy system to input or output electric energy at least according to a preset strategy control unit under a condition that a preset strategy is determined to be triggered. The unit energy system comprises at least one electricity storage device, at least one electricity generating device and at least one electricity usage device. The unit energy system is connected to an external power grid system and can perform electric energy exchange with the power grid system; and the preset strategy is used for indicating the unit energy system to input electric energy from the power grid system or output electric energy toward the power grid system. The electric energy processing method and device, the unit energy system and the energy system solve a technical problem that the prior art cannot realize electric energy transaction.
Owner:GREE ELECTRIC APPLIANCES INC

User-side distributed energy storage device

The invention discloses a user-side distributed energy storage device, which comprises a mobile device, an energy storage box and a fire extinguishing system, and is characterized in that the energy storage box is mounted on the mobile device, and the fire extinguishing system is mounted on the energy storage box; the energy storage box comprises a box body, a plurality of battery modules, a plurality of battery supports, a battery management system, a first bidirectional inverter, a second bidirectional inverter and a monitoring system. The plurality of battery supports are distributed and mounted in the box body; the battery modules are mounted on the battery supports, and the plurality of battery modules are connected with the battery management system; and the box body is provided witha power grid side power interface and a user side power interface. Through the energy storage box, timely regulation and control of power grid power utilization are realized, and the power utilization experience of a user is improved; by arranging a heating device and a heat dissipation device, the environment in the energy storage box is kept in a constant-temperature state, and the service lifeof the battery module is prolonged; and through the fault detection device, the fault type is detected more accurately, the device is simple, and the detection range is wide.
Owner:STATE GRID ZHEJIANG ELECTRIC POWER CO LTD JIAXING POWER SUPPLY CO

Thermal management control system and control method for battery pack of hybrid electric vehicle

The invention discloses a thermal management control system and method for a battery pack of a hybrid electric vehicle. The control system comprises an engine cooling control module, an air conditioner refrigerant control module and a battery pack thermal management control module. The engine cooling control module comprises an engine waterway assembly, an engine water temperature sensor, a one-way valve and a heat exchanger which are sequentially connected in series; the air conditioner refrigerant control module comprises an air conditioner system assembly, an electronic expansion valve and a refrigerant plate heat exchanger which are sequentially connected in series; and the battery pack thermal management control module comprises a battery pack internal waterway assembly, an electronic water pump, a two-position three-way electromagnetic valve, a refrigerant plate heat exchanger and a heat exchanger which are sequentially connected in series. According to the control system, four thermal management control modes of pre-cooling at medium and low temperature, high-efficiency heat exchange cooling at high temperature, heating at extremely low temperature and energy balance of the battery cell are designed, so that the battery pack can be freely switched between an energy-saving mode and a high-efficiency mode along with changes of an external environment, a whole vehicle load and the temperature of the battery cell, and invalid energy consumption of the battery pack is reduced.
Owner:JIANGLING MOTORS

Automatic detection electric energy meter based on Internet of Things

The invention relates to the technical field of power supply, in particular to an automatic detection electric energy meter based on the Internet of Things. The automatic detection electric energy meter comprises a shell; a carrier communication module positioned in the shell and movably connected with the shell; a relay fixedly connected to the interior of the shell; a display device fixedly connected to the surface of the shell; an anti-disassembly device located at the opening of the shell and connected to the interior of the shell in a sliding mode; a PCB fixedly connected to the interior of the shell and used for transmitting signals generated by all the devices; and a relay device movably connected with the interior of the shell and used for reconnecting the disconnected relay. According to the invention, through the use of the relay device, a user can turn on the switch of the relay through the relay device, so that the user can immediately use power, the power utilization experience of the user can be improved, the power utilization demand of the user can be ensured, and the service quality of providing power for the user is improved.
Owner:ZHEJIANG WELLSUN INTELLIGENT TECH CO LTD

Smart home control system

The invention discloses a smart home control system. The system comprises an intelligent gateway, a plurality of intelligent sockets and a plurality of infrared controllers; the intelligent sockets are used for acquiring power utilization information of power utilization equipment connected to the intelligent sockets; the infrared controllers are used for acquiring indoor temperature and humidity parameters and a human body infrared sensing result; the intelligent gateway is used for acquiring outdoor temperature and humidity and outdoor illumination intensity; the intelligent gateway is also used for receiving the power utilization information, the indoor temperature and humidity parameters and the human body infrared sensing result, generating a control instruction by fusing the outdoor temperature and humidity and the outdoor illumination intensity by adopting a clustering algorithm, transmitting the control instruction to the intelligent sockets; and the intelligent sockets transmit the control instruction to the infrared controllers, so that the infrared controllers control household electrical appliances. The smart home control system is established by acquiring the power consumption information and the situation awareness result, so that the power consumption cost is reduced and the power consumption experience of a user is improved.
Owner:GUANGDONG POWER GRID CO LTD +1

Non-perception user load interactive adjustment system

The invention discloses a non-perception user load interaction adjustment system, which comprises a user load acquisition device, a power grid terminal, an adjustment module and an energy storage device, wherein the user load acquisition device is installed on a line of a user ammeter side, is used for acquiring an electrical load of a user and is connected with the power grid terminal, the powergrid terminal is used for controlling the adjustment module to adjust the power transmitted to the user according to the power load of the user, the adjustment module controls the energy storage device to store energy on the power grid side or discharge electricity on the user side according to the received instruction, the energy storage device comprises a moving device, an energy storage box anda fire extinguishing system, and the energy storage box is installed on the moving device. According to the invention, user electricity load information is acquired through a user load acquisition device, so that a power grid is enabled to master the user electricity situation at the first time, the user load can be further adjusted in advance, and the user loss can be reduced; and through a fault detection device, the fault type is detected accurately, the device is simple, and the detection range is wide.
Owner:STATE GRID ZHEJIANG ELECTRIC POWER CO LTD JIAXING POWER SUPPLY CO

Method and system for generating power distribution network black-start scheme

The invention provides a method and a system for generating a power distribution network black-start scheme. The method comprises a power supply determination step of determining a target black-start power supply according to output characteristics of available black-start power supplies in a power distribution network and the capacities of the available black-start power supplies, a path determination step of determining a plurality of power distribution network paths according to the available power supplies in the power distribution network, a path searching step of searching a feasible power distribution network path from the plurality of power distribution network paths according to the load capacity and constrained parameter of the target black-start power supply, and an establishing step of assessing the power distribution network path according to an assessment parameter, and determining and establishing a target power distribution network according to a assessment result. By the technical scheme, after a large area of the power distribution network is power-off, power supply of partial loads can be recovered through the automatic starting and independent running capability of the starting power supply of the power distribution network.
Owner:TSINGHUA UNIV +2

Intelligent perception interactive integrated service system

The invention relates to an intelligent perception interactive integrated service system. The system comprises an intelligent perception unit, an intelligent interactive terminal and an intelligent perception interactive cloud computing platform, wherein the intelligent perception unit is used for collecting the perception information of a perception object and sending the perception information to the intelligent perception interactive terminal; the intelligent interactive terminal is used for sending the perception information to the intelligent perception interactive cloud computing platform, receiving service request information input by a user from a user interface and sending the service request information to the intelligent perception interactive cloud computing platform; and the intelligent perception interactive cloud computing platform is used for obtaining electric power data information from an electric power information system and providing service response for the user according to the perception information, the service request information and the electric power data information. The intelligent perception interactive integrated service system provided by the invention has the advantages that the cloud computing platform is fully utilized to combine power grid data resource with perception data of electric equipment of the user and provide energy efficiency analysis or a power utilization scheme for the user, therefore the demands of power consumers for power utilization service is met to the largest extent and the integration of an intelligent power grid with the Internet of things and the Internet is promoted effectively, thus forming interaction between the intelligent power grid and the economic society.
Owner:CHINA ELECTRIC POWER RES INST +1

Method and system for pushing power failure information

The invention discloses a method and a system for pushing power failure information. The method comprises a first step of acquiring relevant location information of a user; a second step of dividing a grid line coverage area into a set of a plurality of triangular atom regions, and obtaining three vertex coordinates of each atom region; a third step of performing cross product calculation according to the relevant location information of the user and the three vertex coordinates of each atom region, determining a relation between the total cross product and the area of each atom region, when the total cross product is greater than the area of one certain atom region, determining the relevant location of the user to be outside the certain atom region, and when the total cross product is equal to the area of one certain atom region, determining the relevant location of the user to be at the edge or inside the certain atom region; and a fourth step of when power failure occurs to one certain atom region, pushing power failure information to the user whose relevant location of the user is at the edge or inside the region.
Owner:STATE GRID CORP OF CHINA +1

Grid-connected AC/DC hybrid microgrid system capacity optimal configuration method in consideration of flexible loads

The invention discloses a grid-connected AC / DC hybrid microgrid system capacity optimal configuration method in consideration of flexible loads, and belongs to the field of DC hybrid microgrid systemdesign and planning. The method comprises establishing an AC / DC hybrid microgrid system model; executing an AC / DC hybrid microgrid energy management strategy in consideration of flexible loads so as to maximize the operating cost of the AC / DC hybrid microgrid, and allocating the dispatching resources of the AC / DC-side flexible loads and a large power grid so as to maximize the operating income, and dispatching the AC / DC-side flexible loads by using an AC / DC-side flexible load dispatching method; and establishing a the capacity optimal configuration scheme of the AC / DC hybrid microgrid with a comprehensive goal of optimizing the net income and the user satisfaction of the AC / DC hybrid microgrid and with evaluation indexes including a comprehensive constraint condition, a converter loss loadpower shortage rate, and power supply reliability. The flexible loads can flexibly and actively participate in the microgrid operation control, effectively reduce thes battery capacity required for power balance, and effectively increases the microgrid operation net income.
Owner:YANSHAN UNIV

Main and distribution network linkage power failure analysis method and system

ActiveCN111030103AImprove power experienceHigh efficiency in analysis and decision-makingAc network circuit arrangementsFeeder linePower usage
The invention discloses a main and distribution network linkage power failure analysis method and system. The method comprises the steps of obtaining a main network maintenance plan and a distributionnetwork maintenance plan; analyzing the number of first distribution network feeders which are influenced by the main network maintenance plan and need to be powered off and the number of second distribution network feeders which are influenced by the distribution network maintenance plan and need to be powered off; analyzing the number of partial feeders capable of transferring power supply in the first distribution network feeder number; and calculating a difference value between the first distribution network feeder number and the partial feeder line number, calculating a ratio of the second distribution network feeder number to the difference value, and judging whether the main distribution network adopts linkage power failure overhaul or not according to the ratio. By obtaining the main network maintenance plan and the distribution network maintenance plan, whether the main and distribution networks need linkage power failure maintenance can be automatically judged, the analysisand decision efficiency is high, the main and distribution network maintenance can be arranged as a whole, the comprehensive power failure management level is improved, the power failure time is reduced, the power consumption experience a user is improved, and the power consumption business environment is optimized.
Owner:GUANGDONG POWER GRID CO LTD +1
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