摘要:
The method of determining back-feed paths is capable of efficiently solving multi-layer restoration problems by minimizing a fitness function using an iterative genetic algorithm. The method optimizes back-feeding of out-of-service areas by minimizing power loss, switching, unserved loads and voltage/current violations. The efficiency of the algorithm is further increased through the use of a reactive Tabu search to prevent duplicate candidate systems.
摘要:
A method and system restores power in a power distribution network. The network includes a plurality of power sources, a plurality of loading zones, a plurality of switching devices interconnected between the plurality of power sources and the plurality of loading zones, and an intelligent electronic device associated with each of the plurality of switching devices to control the switching devices. A base network state is defined and a power restoration logic is created for the base network state. A simulation is run for the power restoration logic and then the power restoration logic is transmitted to a power restoration controller which thereafter monitors and controls the intelligent electronic devices.
摘要:
A power outage restoration system manages a power network including a plurality of switching devices. The power outage restoration system includes an outage management system having a network model of said power network. A plurality of local restoration controllers are in communication with the outage management system and each said local restoration controller includes a trimmed network model correlating to a respective area of responsibility.
摘要:
The method of determining back-feed paths is capable of efficiently solving multi-layer restoration problems by minimizing a fitness function using an iterative genetic algorithm. The method optimizes back-feeding of out-of-service areas by minimizing power loss, switching, unserved loads and voltage/current violations. The efficiency of the algorithm is further increased through the use of a reactive Tabu search to prevent duplicate candidate systems.
摘要:
A method for generating switching plans to restore power to out-of-service areas after fault isolation through back feeding. A chromosome architecture is defined to create chromosomes representing candidate post-restoration systems. The chromosomes are evaluated are repeatedly genetically altered until an acceptable solution is identified. The solution identifies a plurality of switching operations that back feed power to the out-of-service areas in the most optimal manner.
摘要:
Methodologies adjust a component failure rate for electric power network reliability analysis. A component may include subcomponents and the failure of each subcomponent may be feature dependent. Features are measurable or observable inputs, which can affect the life of one or more subcomponents. The failure rate of a particular component may be obtained according to its real conditions. The methodologies can be used to do condition-based reliability analysis for electric power networks, in order to obtain a maintenance/replacement/operation strategy.
摘要:
A cool hydrogen-propelled cyclone quench box comprises: a mixing chamber (7) arranged at the center of a lower support plate (11); swirl tubes (6) arranged above the lower support plate (11) and outside the mixing chamber (7), the tubes being in tangential communication with the body of the mixing chamber (7) along a horizontal direction; a gas-liquid downcomer (5) perpendicularly arranged outside each swirl tube (6), the bottom portions of the downcomers and the outer walls of the swirl tubes (6) being in tangential communication along a perpendicular direction, and the top portions of the gas-liquid downcomers (5) being connected to fluid inlets (4) arranged on an upper support plate (3). The bottom end of a cool hydrogen branch pipe (8) is arranged outside each swirl tube (6), and is tangentially connected to the swirl tube (6) along a horizontal direction. By means of a flange (2) arranged on the upper support plate (3), the top ends of the cool hydrogen branch pipes (8) connect to a cool hydrogen pipe (1) arranged outside the upper support plate (3). Upper-level cyclone blades (12) are installed within the mixing chamber (7). The bottom ends of the blades (12) are perpendicularly arranged on the upper-level blade support plate (13). Lower-level cyclone blades (9) are installed at the mixing chamber (7) outlet; the bottom ends of the blades (9) are perpendicularly arranged on the lower-level blade support plate (10).
摘要:
Among other things, one or more techniques and/or systems are provided for maintaining a distributed electrical power network model associated with a power grid. A global power network model, comprising a global logical representation of the power grid, may be maintained at a network control center configured to manage one or more substations associated with the power grid. The network control center may host grid management applications that may utilize the global power network model. A local power network model, comprising a local logical representation of a power grid territory within the power grid monitored by a substation, may be maintained at the substation. The substation may host one or more local grid management applications that may utilize the local power network model. The global power network model and the local power network model may be synchronized in response to events occurring within the power grid.
摘要:
A method and system restores power in a power distribution network. The network includes a plurality of power sources, a plurality of loading zones, a plurality of switching devices interconnected between the plurality of power sources and the plurality of loading zones, and an intelligent electronic device associated with each of the plurality of switching devices to control the switching devices. A base network state is defined and a power restoration logic is created for the base network state. A simulation is run for the power restoration logic and then the power restoration logic is transmitted to a power restoration controller which thereafter monitors and controls the intelligent electronic devices.
摘要:
A substation intelligence system (104) includes a substation computer (105) which is operatively connected to a plurality of field devices (102) through an input/output subsystem (204). Data indicative of the devices is stored in a substation database (208). Advanced monitoring and/or diagnostics (107) use information from the database to perform various monitoring and/or diagnostic functions.