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32 results about "IPFC" patented technology
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IPFC stands for Internet Protocol over Fibre Channel. It governs a set of standards created in January 2006 for address resolution (ARP) and transmitting IPv4 and IPv6 network packets over a Fibre Channel (FC) network. IPFC makes up part of the FC-4 protocol-mapping layer of a Fibre Channel system.
Multi-protocol fusion system and IP communication and FC-AE-1553 communication method between nodes
ActiveCN106790104AAchieve organic unityDetermined in real timeData switching networksNon real timeMulti protocol
The invention relates to a multi-protocol fusion system and an IP communication and FC-AE-1553 communication method between nodes. The multi-protocol fusion system comprises an FC-MPIC node supporting FC-AE-1553 and IP, an FC switch, an FC-EG gateway and an Ethernet node. The FC-MPIC node is connected to the FC switch; the FC-MPIC node comprises an NC / IPFC node and an NT / IPFC node; the NC / IPFC node supports an FC-AE-1553 network controller and an IPFC function at the same time, and the NT / IPFC node supports an FC-AE-1553 network terminal and the IPFC function at the same time; the FC switch performs signal forwarding based on an address mapping table; the FC-EG gateway is used for accessing the Ethernet node to the FC network; and the Ethernet node is connected to the Ethernet. The multi-protocol fusion system realizes the organic unification of an IP non-real-time network and an FC-AE-1553 real-time network.
Owner:TECH & ENG CENT FOR SPACE UTILIZATION CHINESE ACAD OF SCI
FC-EG gateway and communication conversion method between optical fiber channel and Ethernet
ActiveCN106789609ARealize converged communicationNetwork connections8b/10b encodingHeterogeneous network
The invention relates to an FC-EG gateway and a communication conversion method between an optical fiber channel and the Ethernet. The FC-EG gateway comprises an Ethernet universal interface module, an FC universal interface module and a protocol conversion module. The Ethernet universal interface module is used for packaging and analyzing an Ethernet frame header and realizing the conversion of a physical layer and a data link layer; the FC universal interface module is used for performing photovoltaic conversion, electro-optical conversion, 8B / 10B encoding and decoding, and packaging and analyzing of a universal frame header; and the protocol conversion module is used for converting an IPFC sequence and an IP message. The invention further discloses a communication conversion method between the optical fiber channel and the Ethernet by utilizing the FC-EG gateway. By means of the design of the FC-EG gateway, heterogeneous network IP fusion communication based on the Ethernet and the optical fiber channel is realized, so that the IP message in the ordinary Ethernet can access the FC network through the FC-EG gateway.
Owner:TECH & ENG CENT FOR SPACE UTILIZATION CHINESE ACAD OF SCI
Variable-frequency air conditioner, power circuit of outdoor unit of variable-frequency air conditioner and PFC (power factor correction) control method
InactiveCN104953854ALow costReduce current rippleEfficient power electronics conversionAc-ac conversionCapacitanceLoop control
Owner:GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1
Prevention and control method considering control mode of IPFC
ActiveCN111697588AAchieve common meritOptimize power flow distributionFlexible AC transmissionSingle network parallel feeding arrangementsControl powerControl engineering
The invention discloses a prevention and control method considering the control mode of an IPFC. Various control modes of the IPFC are considered, and power system power flow calculation including a main control mode and an auxiliary control mode is performed by utilizing the power flow calculation iteration format under each control mode of the IPFC; a multi-objective optimization function integrating practicability and safety is constructed, and operation constraints of the power system and the IPFC are provided; and prevention and control power flow optimization of the power system is realized based on a particle swarm optimization algorithm. According to the invention, the static control potential of the IPFC can be fully mined, the optimization of power flow distribution during steady-state operation of the system is realized, and the practicability and the static safety level of the system are significantly improved.
Owner:SOUTHEAST UNIV +3
Low-voltage power distribution network multi-end combined power supplying structure based on IPFC
InactiveCN106961106ACompensation for resistive voltage dropCompensation for reactive power requirementsFlexible AC transmissionPolyphase network asymmetry elimination/reductionLow voltageTransfer switch
The invention discloses a low-voltage power distribution network multi-end combined power supplying structure based on an IPFC. The structure comprises a first power supplying feeder line and a second power supplying feeder line. A double-power-supply automatic transfer switch ATS is connected between the first power supplying feeder line and the second power supplying feeder line. The first power supplying feeder line is serially connected with a coupling transformer. The second power supplying feeder line is parallelly connected with a coupling transformer. The interline power flow controller (IPFC) is connected between the two coupling transformers. The interline power flow controller (IPFC) is parallelly connected with the double-power-supply automatic transfer switch (ATS). The low-voltage power distribution network multi-end combined power supplying structure settles problems such as reactive power flow control shortage, low-voltage parallel power supplying reverse power operation and electromagnetic circulation in traditional power transmission line compensation control.
Owner:ELECTRIC POWER SCI RES INST OF GUIZHOU POWER GRID CO LTD
IPFC topology and its steady-state modeling method for power flow control of parallel double-circuit transmission lines
InactiveCN109256777APower flow control is stable and effectiveGuaranteed safe operationAc networks with different sources same frequencyEffective powerControl objective
The invention provides an IPFC topology and its steady-state modeling method for power flow control of parallel double-circuit transmission lines, the topology comprises a plurality of voltage sourceconverters, Using IPFC cross-topology connection method, A line active pow command value P (i) ref1 ( / i) and a reactive power command value Q (i) ref1 ( / i) are adopt as control targets in a parallel double-circuit main control line, In the parallel double-circuit auxiliary control line, the active power command value P (i) ref2 ( / i) is adopted as the control objective, which realizes the flexiblecontrol of the main control line power flow and the active power of the auxiliary control line. When IPFC equipment controls line power flows, the reactive power of auxiliary control line is uncontrollable, which easily causes the circulating current problem of parallel double-circuit auxiliary control line. The topology structure provided by the invention adopts the cross topology connection method of the IPFC, The decoupling of the DC side between the parallel double-circuit main control line and the parallel double-circuit auxiliary control line can effectively avoid the circulating currentproblem of the auxiliary control line in the traditional IPFC topology, realize the stable and effective power flow control of the parallel double-circuit line, and ensure the safe and effective operation of the power network.
Owner:SOUTHEAST UNIV +2
Multifunctional power flow controller suitable for multiple channels and double loops
ActiveCN111934324AReduce the number of layoutsReduce layoutSingle network parallel feeding arrangementsAc networks with different sources same frequencyTransformerBack-to-back connection
The invention provides a multifunctional power flow controller suitable for multiple channels and double loops. The multifunctional power flow controller comprises an MMC1, an MMC2, four controllableswitches S1-S4, eight transformers T1-T8 and a control circuit, wherein the MMC1 and the MMC2 are connected back to back, and the control circuit is used for controlling actions of the MMC1, the MMC2and the controllable switches S1-S4. The alternating current end of the MMC1 is electrically connected with transformers T2 and T3 arranged on the first double-circuit line through a controllable switch S1 and a transformer T1, and is electrically connected with a bus through a controllable switch S2 and a transformer T7; and the alternating current end of the MMC 2 is electrically connected withtransformers T5 and T6 arranged on the second double-circuit line through a controllable switch S4 and a transformer T4, and is electrically connected with the bus through a controllable switch S3 anda transformer T8. When the controller is used, the UPFC or IPFC working mode can be correspondingly switched according to the power grid power flow control requirement, multiple purposes are achievedthrough one device, and therefore the arrangement number and cost of power grid power flow control equipment are reduced.
Owner:STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST +4
IPFC-containing power system power flow optimization control method
InactiveCN112018777AImprove solution efficiencySolve the lack of precisionAc networks with different sources same frequencyControl engineeringPower grid
The invention provides an IPFC-containing power system power flow optimization control method, which comprises the following steps (1) determining an IPFC equivalent power injection model based on anIPFC-containing power grid structure; (2) giving an IPFC-containing power system OPF model, carrying out OPF calculation, and establishing a training set and a test set; (3) establishing a data-drivenoptimal power flow model based on an SELM framework; (4) training the established data-driven optimal power flow model based on the SELM framework in three stages; and (5) during engineering application, directly substituting the active power and the reactive power of the load of the IPFC-containing power system into the SELM framework-based data-driven optimal power flow model trained in the step (4) as input data, and calculating and obtaining an OPF result. According to the invention, the method can effectively improve the solving efficiency while guaranteeing the OPF calculation precision, facilitates the power flow optimization control of an IPFC-containing power system, just needs to adjust a small number of parameters during online application, and is high in engineering application value.
Owner:STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST +4
Inter-line power flow controller multi-target coordination control method based on fuzzy logic
ActiveCN112202167AUnlock the Potential of Coordinated ControlAchieve effective controlFlexible AC transmissionArtificial lifeParticle swarm algorithmOperations research
The invention discloses an inter-line power flow controller multi-target coordination control method based on fuzzy logic. The method comprises the steps: building an IPFC multi-target coordination control system based on conventional control, and formulating a corresponding coordination control strategy; aiming at the defect that a traditional controller is poor in adaptive function under different working conditions, designing a multi-target fuzzy logic controller and a coordination strategy based on fuzzy self-adaptive control; and optimizing the parameter factors of the IPFC fuzzy controller by combining a particle swarm algorithm and the optimization sample of the traditional controller established in the step S1 so as to mine the coordination control potential of the IPFC under different operation conditions of the system. According to the invention, a multi-objective coordination control method is combined with a particle swarm optimization algorithm and a traditional controlleroptimization sample, a multi-objective fuzzy logic controller is designed, effective control over different objectives is achieved, a corresponding coordination control strategy is formulated according to the interaction influence between the objectives, and the coordination control potential of the IPFC under different operation working conditions of the system is mined.
Owner:STATE GRID JIANGSU ECONOMIC RES INST +3
Hybrid protocol switching network routing implementation method and device and network switching equipment
The invention provides a hybrid protocol switching network routing implementation method and device and network switching equipment, and the method is applied to the network switching equipment and comprises the steps: receiving to-be-forwarded data; determining a corresponding forwarding mode according to the data type of the to-be-forwarded data, and forwarding the data; wherein the data type of the to-be-forwarded data comprises FC-AE-1553 data of an avionics environment of a fiber channel, IPFC data and Ethernet data. The hybrid protocol switching network routing implementation method provided by the invention is used for solving the problem of simultaneous transmission of different protocols.
Owner:BEIJING TASSON SCI & TECH CO LTD
IPFC-containing power system power flow optimization method based on MISOCP
ActiveCN112398132AEase of embossingRealize convex processingDesign optimisation/simulationSpecial data processing applicationsMATLABGlobal optimal
The invention discloses an IPFC-containing power system power flow optimization method based on MISOCP. The method comprises the following steps: S1, carrying out mathematical deformation and variablesubstitution of an IPFC conventional injection model, and building an IPFC model; S2, carrying out IPFC equality constraint convexity processing; S3, carrying out IPFC inequality constraint convexityprocessing; S4, adding a convex IPFC constraint into a linearized power flow optimization model; S5, carrying out MATLAB / GUROBI optimization calculation; and S6, according to an optimization result,obtaining an amplitude and a phase angle of an output voltage of the converter through reverse derivation. According to the IPFC-containing power system power flow optimization method based on the MISOCP, by utilizing mathematical deformation, approximate processing and binary expansion technologies, the convexity processing of an IPFC model is realized, a highly non-convex nonlinear optimizationproblem is converted into the MISOCP model, the model is high in solving speed, and a solution has global optimality. The method can accurately, efficiently and quickly complete the calculation of thepower flow optimization of the power system, is higher in practical value, and can provide theoretical and technical support for the online optimization and regulation of comprehensive FACTS.
Owner:STATE GRID JIANGSU ECONOMIC RES INST +3
Inter-line power flow controller oscillation suppression method by considering new energy fluctuation
ActiveCN111934329AWide adaptabilityPower oscillations reduction/preventionAc networks with different sources same frequencyMulti machine systemNew energy
The invention discloses an inter-line power flow controller oscillation suppression method by considering new energy fluctuation, relates to the fluctuation of renewable energy, provides an IPFC additional controller based on inherent frequency offset, quantifies the interaction effect between targets, and selects the superposition position of the additional controller. By compensating the synchronous torque coefficient of the specific oscillation mode, the inherent frequency of the mode is influenced, and the condition of forced oscillation generation is destroyed. Furthermore, an IPFC controller is improved into a multi-channel additional controller, a wide-adaptability forced oscillation suppression method considering new energy fluctuation is obtained on the premise of identifying andpositioning oscillation signals and determining disturbance source influence factors, and technical help is provided for the IPFC to deal with complex power oscillation under multiple disturbances ina multi-machine system.
Owner:STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST +4
IPFC model taking injection power as variable and load flow calculation method thereof
ActiveCN112398133ASimple calculationReduce computing timeAc networks with different sources same frequencyState variablePower grid
The invention discloses an IPFC model taking injection power as a variable and a load flow calculation method thereof. The method specifically comprises the steps: directly taking the injection poweras the variable, enabling the injection power to be equivalent to the influence of IPFC on a controlled line, enabling the model not to relate to an injection voltage variable of an IPFC converter through mathematical deformation, and building a novel IPFC model. On the basis, the IPFC injection power is directly used as a state variable of the IPFC in the load flow calculation process, an IPFC load flow calculation iterative update equation with line power as a control target is constructed, and a target difference value and a system state quantity are controlled according to each iteration.The IPFC model provided by the invention has the advantages of simple modeling, good model convergence and high convergence precision. According to the load flow calculation method of the IPFC model,load flow calculation of a large power grid containing the IPFC can be rapidly and accurately achieved, and an application value and a control potential of the IPFC in an actual power grid can be mined.
Owner:STATE GRID JIANGSU ECONOMIC RES INST +3
Prevention and control method of IPFC-containing power system taking wind power scene into consideration
PendingCN113241793AMake full use of the stability adjustment functionImprove economyGeneration forecast in ac networkSingle network parallel feeding arrangementsMarkov chainSimulation
The invention discloses a prevention and control method for an I-PFC-containing power system taking a wind power scene into consideration. The method specifically comprises the following step: establishing a prevention and control optimization model for the IPFC-containing power system taking the wind power scene into consideration. The Markov chain model is adopted for generating the wind power scene, and the method is simple in process, high in calculation speed and suitable for prediction of a short time scale; prevention and control ensure that power flow does not exceed a limit after an anticipated accident (N-1 fault) occurs, and related power flow calculation is N-1 power flow calculation containing IPFC; and a main problem is solved by adopting a particle swarm algorithm, and whether the algorithm is converged or not is judged. According to the method, introduction of various scenes and probability scenes of wind power access is considered, so the model gives full play to the stability adjustment function of the IPFC in a limit scene; and meanwhile, the economical efficiency of the system during normal operation can be considered, so the method has high adaptability to complex and changeable operation scenes of the power system and has engineering practical significance.
Owner:STATE GRID JIANGSU ECONOMIC RES INST +3
IPFC planning configuration method considering adjustment capability of multiple flexible devices
PendingCN114254953AImprove operational efficiencyIncrease profitResourcesSystems intergating technologiesInterior point methodControl engineering
The invention discloses an IPFC planning configuration method considering multi-flexible equipment adjustment capability, and the method fully considers the multi-flexible equipment adjustment capability, and builds a multi-target optimization model of IPFC planning configuration with the minimum IPFC investment and the maximum available power transmission capability of a system as optimization targets; and solving the provided multi-target optimization model based on a multi-target algorithm nested by a multi-target particle swarm algorithm and an interior point method, solving the available power transmission capacity of an IPFC-containing system by adopting the interior point method in an inner layer of the algorithm, and calculating a Pareto solution set of IPFC planning configuration by adopting the multi-target particle swarm algorithm in an outer layer. The model can fully consider the mutual supporting effect of the existing flexible equipment of the system, the corresponding solving algorithm can accurately and efficiently complete optimization calculation, the practical value is large, and theoretical and technical support can be provided for planning configuration and demonstration application of the IPFC.
Owner:JIANGSU ELECTRIC POWER CO +3
Oscillation suppression method and system, readable storage medium and computing equipment
PendingCN114050569AOscillation suppressionFlicker reduction in ac networkPower oscillations reduction/preventionConstant powerControl theory
Owner:STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST +2
Method and system for improving reactive support capability, storage medium and computing equipment
PendingCN114024312AImprove reactive power support capacityUnleash reactive support potentialFlexible AC transmissionReactive power adjustment/elimination/compensationLoop controlControl engineering
The invention discloses a method and system for improving reactive power support capability, a storage medium and computing equipment. As for an IPFC converter for improving the reactive power support capability, when a main control line connected with the IPFC converter fails, the dynamic amplitude limiting values of active current and reactive current are obtained according to the actually measured active current and reactive current; and the active current and the reactive current output by outer loop control are subjected to amplitude limiting through the dynamic amplitude limiting values, so that the reactive output of the IPFC converter is improved, and the reactive support potential of the IPFC converter is released.
Owner:STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST +2
ipfc topology and its steady-state modeling method for power flow control of parallel double-circuit lines
InactiveCN109256777BPower flow control is stable and effectiveGuaranteed safe operationAc networks with different sources same frequencyConvertersControl objective
The present invention proposes a novel line-to-line power flow controller topology and its steady-state modeling method suitable for power flow control of parallel double-circuit lines. The line active power command value is adopted in the parallel double-circuit main control line P ref1 and reactive power command value Q ref1 As the control target, the active power command value of the line is adopted in the parallel double-circuit auxiliary control line P ref2 As the control target, the flexible control of the power flow of the main control line and the active power of the auxiliary control line is realized. When the IPFC equipment controls the power flow of the line, the reactive power of the auxiliary control line is uncontrollable, which may easily cause the circulation problem of the parallel double-circuit auxiliary control line. The topology proposed by the present invention uses the IPFC cross topology connection method to decouple the DC side between the parallel double-circuit main control line and the parallel double-circuit auxiliary control line, which can effectively avoid the circulation problem of the auxiliary control line in the traditional IPFC topology , realize stable and effective power flow control of parallel double-circuit lines, and ensure safe and effective operation of the power grid.
Owner:SOUTHEAST UNIV +2
Communication conversion method between fc-eg gateway, fiber channel and ethernet
The invention relates to an FC-EG gateway and a communication conversion method between an optical fiber channel and the Ethernet. The FC-EG gateway comprises an Ethernet universal interface module, an FC universal interface module and a protocol conversion module. The Ethernet universal interface module is used for packaging and analyzing an Ethernet frame header and realizing the conversion of a physical layer and a data link layer; the FC universal interface module is used for performing photovoltaic conversion, electro-optical conversion, 8B / 10B encoding and decoding, and packaging and analyzing of a universal frame header; and the protocol conversion module is used for converting an IPFC sequence and an IP message. The invention further discloses a communication conversion method between the optical fiber channel and the Ethernet by utilizing the FC-EG gateway. By means of the design of the FC-EG gateway, heterogeneous network IP fusion communication based on the Ethernet and the optical fiber channel is realized, so that the IP message in the ordinary Ethernet can access the FC network through the FC-EG gateway.
Owner:TECH & ENG CENT FOR SPACE UTILIZATION CHINESE ACAD OF SCI
Method and device for evaluating installation scheme of inter-line power flow controller, and electronic equipment
PendingCN113642818AQuick planningEffective planningResourcesSystems intergating technologiesControl engineeringPower grid
The invention discloses a method and device for evaluating an installation scheme of an inter-line power flow controller, and electronic equipment, and the method comprises the steps: calculating the power flow distribution of a regional power grid in a normal operation mode, and judging a key section which can be installed and a line with a heavier load of the section; determining a main control line and an auxiliary control line for each key section line; establishing an upper-layer power regulation and control optimization model and a lower-layer benefit optimization model; and according to a system operation boundary condition, substituting the capacity of each end designed by the IPFC into the upper and lower layer models for solving, and obtaining an optimal installation scheme. According to the method and device, an IPFC installation scheme evaluation problem is converted into a hierarchical model optimization solution problem, calculation is simpler and faster, and reference can be provided for planning and construction of a power transmission network.
Owner:CEEC JIANGSU ELECTRIC POWER DESIGN INST
Robust control method and system for suppressing low-frequency oscillation, medium and computing equipment
PendingCN114024311AGuaranteed robustnessSuppress low frequency oscillationFlicker reduction in ac networkPower oscillations reduction/preventionConstant powerControl engineering
The invention discloses a robust control method and system for suppressing low-frequency oscillation, a medium and computing equipment. According to the method and system, the frequency difference of a main control line causing low-frequency oscillation is obtained;robust control is carried out on the frequency difference, so that the robustness of the system can be guaranteed; active power obtained through the robust control is added into outer-loop constant power control so as to perform oscillation suppression; and therefore, the suppression of low-frequency oscillation caused by an IPFC converter to the main control line connected with the IPFC converter is realized.
Owner:STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST +2
Site selection and constant volume method for inter-line power flow controller
InactiveCN110277786ALow costPrecise and effective controlAc networks with different sources same frequencyControl lineEngineering
The invention discloses a site selection and constant volume method for an inter-line power flow controller, and the method comprises the following steps: defining a system static safety margin comprehensive evaluation index, and comprehensively evaluating the operation state of each line after N-1 different fault occur to obtain an IPFC site selection adaptability index; performing IPFC step-by-step site selection; determining a line with the worst adaptability index as an IPFC main control line, scanning buses at the two ends of the main control line, and taking a line with the optimal fitness index in the lines connected with the two buses as an auxiliary control line; on the basis of site selection research, carrying out the IPFC optimization constant volume research, and performing the optimization selection on the capacity of each converter of the IPFC through an intelligent algorithm. According to the invention, the cost of the inter-line power flow controller can be reduced, the power flow of the power system can be accurately and effectively controlled, and the line overload phenomenon is avoided.
Owner:SOUTHEAST UNIV +3
Inter-line power flow controller site selection method and device and electronic equipment
PendingCN113644656ASolving Power Transfer ProblemsSolve the problem of cumbersome calculationsAc networks with different sources same frequencyComplex mathematical operationsPower gridControl theory
The invention discloses an inter-line power flow controller site selection method and device and electronic equipment, and the method comprises the steps: calculating the power flow distribution of a power grid in a normal operation mode, and judging a key section and a heavy-load line; aiming at the N-1 operation mode of the key section line, a line power flow and a bus voltage change rate matrix at two ends of the line are calculated, and the change rate matrix is normalized; and meanwhile, a hybrid direct current access receiving end power grid scheme optimization model is constructed in combination with the power transmission line distance, an IPFC access power grid site selection optimization model is solved, and an optimal installation branch is obtained. According to the method, an IPFC site selection optimization problem is converted into a single function network access optimization problem, the calculation is simpler and faster, and reference can be provided for planning and construction of a power transmission network.
Owner:CEEC JIANGSU ELECTRIC POWER DESIGN INST
Power system power flow optimization method considering double-circuit IPFC control characteristics
PendingCN114389270AControl characteristics take into accountGuarantee the same trendElectric power transfer ac networkSingle network parallel feeding arrangementsControl engineeringPower grid
The invention discloses a power system power flow optimization method considering double-circuit IPFC control characteristics, the power flow optimization method comprises an optimization model and a solving method of the optimization model, and constraint conditions of the optimization model comprise IPFC operation constraint, system operation constraint and equality constraint and inequality constraint of the double-circuit IPFC control characteristics. The objective function of the optimization model considers the economical efficiency and the static safety of the power grid at the same time, the constraint condition also considers the related constraint of the control characteristics of the double-circuit IPFC besides the conventional operation constraint, and the optimization model is relatively comprehensive and rigorous; the considered control characteristic of the IPFC is different from that in the existing research, the injection voltage of the IPFC before and after the fault is kept unchanged, but the power flow of the power transmission section where the IPFC is located before and after the fault is kept unchanged as much as possible; the considered control characteristics of the IPFC are more suitable for engineering practice, and the control characteristics of the IPFC are accurately considered.
Owner:SOUTHEAST UNIV
A method for power flow optimization of power system with ipfc based on misocp
ActiveCN112398132BEase of embossingRealize convex processingDesign optimisation/simulationSpecial data processing applicationsMATLABGlobal optimal
Owner:STATE GRID JIANGSU ECONOMIC RES INST +3
Method for calculating power flow of power system containing IPFC through MATLAB and BPA combined simulation
ActiveCN111064197AEasy and accurate calculationAc networks with different sources same frequencyInformation transmissionControl engineering
The invention discloses a method for calculating the power flow of a power system containing IPFC through MATLAB and BPA combined simulation, and belongs to the technical field of power system operation analysis and simulation. The specific process of the method is as follows: IPFC (Intelligent Power Factor Correction) solution calculation is carried out in MATLAB (Matrix Laboratory); power grid power flow calculation is carried out in a BPA; interaction of two kinds of simulation software is carried out through a data exchange interface compiled in MATLAB; the data exchange interface reads input information from a PFO file; the input information is transmitted to an IPFC calculation program in the MATLAB to execute the solution calculation of the IPFC; and after calculation is completed,the IPFC calculation program transmits the output information to the data exchange interface, writes the output information into a corresponding position in a DAT file of the BPA through the data exchange interface, and then calls a power flow calculation program of the BPA by using the data exchange interface to perform power flow calculation on the DAT file to generate a new PFO file. Accordingto the method, the power flow calculation of a large power grid containing an IPFC can be conveniently and accurately realized, and great convenience is brought to the evaluation of the application value and the control potential of the IPFC in an actual power grid.
Owner:SOUTHEAST UNIV +3
Multi-protocol fusion system, ip communication between nodes and fc-ae-1553 communication method
ActiveCN106790104BAchieve organic unityDetermined in real timeData switching networksNon real timeMulti protocol
The invention relates to a multi-protocol fusion system and an IP communication and FC-AE-1553 communication method between nodes. The multi-protocol fusion system comprises an FC-MPIC node supporting FC-AE-1553 and IP, an FC switch, an FC-EG gateway and an Ethernet node. The FC-MPIC node is connected to the FC switch; the FC-MPIC node comprises an NC / IPFC node and an NT / IPFC node; the NC / IPFC node supports an FC-AE-1553 network controller and an IPFC function at the same time, and the NT / IPFC node supports an FC-AE-1553 network terminal and the IPFC function at the same time; the FC switch performs signal forwarding based on an address mapping table; the FC-EG gateway is used for accessing the Ethernet node to the FC network; and the Ethernet node is connected to the Ethernet. The multi-protocol fusion system realizes the organic unification of an IP non-real-time network and an FC-AE-1553 real-time network.
Owner:TECH & ENG CENT FOR SPACE UTILIZATION CHINESE ACAD OF SCI
An Oscillation Suppression Method for Line Power Flow Controllers Considering New Energy Fluctuations
ActiveCN111934329BWide adaptabilityPower oscillations reduction/preventionAc networks with different sources same frequencyMulti machine systemNew energy
The invention discloses an inter-line power flow controller oscillation suppression method by considering new energy fluctuation, relates to the fluctuation of renewable energy, provides an IPFC additional controller based on inherent frequency offset, quantifies the interaction effect between targets, and selects the superposition position of the additional controller. By compensating the synchronous torque coefficient of the specific oscillation mode, the inherent frequency of the mode is influenced, and the condition of forced oscillation generation is destroyed. Furthermore, an IPFC controller is improved into a multi-channel additional controller, a wide-adaptability forced oscillation suppression method considering new energy fluctuation is obtained on the premise of identifying andpositioning oscillation signals and determining disturbance source influence factors, and technical help is provided for the IPFC to deal with complex power oscillation under multiple disturbances ina multi-machine system.
Owner:STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST +4
A Multi-objective Coordinated Control Method for Interline Power Flow Controller Based on Fuzzy Logic
ActiveCN112202167BUnlock the Potential of Coordinated ControlAchieve effective controlFlexible AC transmissionArtificial lifeControl systemControl engineering
The invention discloses a multi-objective coordinated control method of an inter-line power flow controller based on fuzzy logic. The control method includes: establishing an IPFC multi-objective coordinated control system based on conventional control, formulating a corresponding coordinated control strategy; Due to the poor adaptive function under working conditions, a multi-objective fuzzy logic controller and a coordination strategy based on fuzzy adaptive control were designed. Combined with the particle swarm algorithm and the optimization samples of the traditional controller built by S1, the parameter factors of the IPFC fuzzy controller were analyzed. Carry out optimization and tap the coordinated control potential of IPFC under different operating conditions of the system. The multi-objective coordinated control method of the present invention combines the particle swarm optimization algorithm and the traditional controller optimization samples to design a multi-objective fuzzy logic controller to achieve effective control of different objectives, and formulate corresponding coordinated control strategies for the interaction between the objectives. Coordinated control potential of IPFC under different operating conditions of the system.
Owner:STATE GRID JIANGSU ECONOMIC RES INST +3
A method to improve the convergence of ipfc power injection model in power flow calculation
InactiveCN109149584BImprove work efficiencyFast convergenceAc networks with different sources same frequencyPower gridEngineering
The invention discloses a method for improving convergence of IPFC power injection model in power flow calculation, In the power flow calculation of power system with IPFC, PI control is introduced tosolve part of the power of IPFC injection system, and when the iterative error is reduced to a certain value but the power flow still does not reach the convergence condition, the parameters of PI controller are reset to reduce the iterative step length, so as to overcome the problem of convergence degradation caused by overshoot. The invention realizes that the convergence of the power flow calculation of the power network is greatly improved when the IPFC adopts the power injection model, and the work efficiency of the operation analyst can be improved.
Owner:SOUTHEAST UNIV +2
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