Fault situation processing arrangement of a load distribution system of a local electric power transmission network
AssigneeWäRtsilä Finland Oy
InventorsAri Saikkonen, Tom Kaas
Life of this patent
Estimating the term…
Abstract
A processing arrangement for the fault situation of a local electric power transmission grid comprises a generator-specific element arranged to monitor the fault situation of a data communication bus and the statuses of the switches of the electric power transmission network and to compare the status data concerning the same switch. In case of a fault situation the generators change into droop control only if there are no other possibilities to continue with the normal adjustment of the generator.
Claims11
A fault situation processing arrangement of a load distribution system of a local electric power transmission network comprising:
- a fault situation processing element designed to be installed into each generator of the electric power transmission network, each generator of the network being connectable to other generators via two connection routes equipped with different switches, the power transmission network being a line or a loop and the generators having consecutive identifiers, and the generators being connected to each other via a data communication bus,
- wherein the processing element is arranged to:
- monitor a fault situation of the data communication bus and statuses of the switches of the electric power transmission network,
- compare the status data concerning the same switch,
- change into droop control if the status data of at least one switch does not correspond in the comparison and when there is no fault situation in the data communication bus, or if there are data communication faults in connection with adjacent generators or in connection with the first and last generator of the network,
- replace the status data of the switch with the status provided by the adjacent generator concerning the same switch when there are no data communication faults in connection with the adjacent generators or in connection with the first and last generator of the network, and the status data of the switch does not correspond in the comparison.
A method of processing a fault situation of the load distribution system of a local electric power transmission network, wherein the method is designed to be carried out in each generator of the electric power transmission network, each generator of the network being connectable to other generators via two connection routes having equipped with different switches, the power transmission network being a line or a loop and the generators having consecutive identifiers, the generators being in connection with each other via a data communication bus, and the method comprising the steps of:
- monitoring a fault situation of the data communication bus and the statuses of the switches of the electric power transmission network,
- comparing the status data concerning the same switch,
- changing into droop control if the status data of at least one switch does not correspond in the comparison and when there is no fault situation in the data communication bus, or if there are data communication faults in connection with adjacent generators or in connection with the first and last generator of the network,
- replacing the status data of the switch with the status provided by the adjacent generator concerning the same switch when there are no data communication faults in connection with the adjacent generators or in connection with the first and last generator of the network, and the status data of the switch does not correspond in the comparison.
Dependencies are inferred from the claim text.