Methods of synchronizing a plurality of generators
AssigneeConverteam UK Ltd
InventorEric Anthony Lewis
Life of this patent
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Abstract
A method of synchronizing a plurality of generators connected together in parallel to a supply network. A common synchronization signal can be generated having a frequency versus time pattern that is the same as the frequency versus time pattern of the supply network during normal operating conditions. The common synchronization signal is then supplied to each of the generators to control the level of power that is supplied to the supply network by the generators.
Claims23
A method of synchronizing a plurality of generators connected together in parallel to a supply network, the method comprising the steps of:
- generating a first common synchronization signal having a frequency versus time pattern that is the same as the frequency versus time pattern of the supply network during normal operating conditions of the supply network;
- and
- supplying a second common synchronization signal to each of the generators during a fault condition of the supply network to synchronize the generators during the fault condition.
An arrangement comprising a plurality of generators connected together in parallel to a supply network, and a controller adapted to:
- (a) generate a first common synchronization signal having a frequency versus time pattern that is the same as the frequency versus time pattern of the supply network during normal operating conditions of the supply network, and
- (b) supply a second common synchronization signal to each of the generators during a fault condition of the supply network to synchronize the generators during the fault condition.
A plurality of wind turbines, each wind turbine comprising a generator having a stator and a rotor, a power converter, and a turbine assembly including at least one blade for rotating the rotor of the generator, wherein the generators are connected together in parallel to a supply network and are synchronized according to a method comprising the steps of:
- generating a first common synchronization signal having a frequency versus time pattern that is the same as the frequency versus time pattern of the supply network during normal operating conditions of the supply network;
- and
- supplying a second common synchronization signal to each of the generators during a fault condition of the supply network to synchronize the generators during the fault condition.
A method of synchronizing a plurality of generators connected together in parallel to a supply network, the method comprising the step of:
- supplying a common synchronization signal to each of the generators during a fault condition of the supply network to synchronize the generators during the fault condition, the common synchronization signal having a frequency versus time pattern that is the same as the frequency versus time pattern of the supply network that existed during previous normal operating conditions of the supply network.
A method of synchronizing a plurality of generators connected together in parallel to a supply network, the method comprising the step of:
- supplying a common synchronization signal to each of the generators during a fault condition of the supply network to synchronize the generators during the fault condition, the common synchronization signal having a frequency versus time pattern with a decreasing frequency.
Dependencies are inferred from the claim text.