Communication enabled fast-acting imbalance reserve
| DWPI Title: Electrical power transmission network has controller that communicates signal within communication latency to secondary generation sources and automatically maintains updated operational state of power transmission network in balance |
| Abstract: A system and method for control of dispatchable resources on an electrical power distribution grid is disclosed. The disclosed method provides improved response to power imbalance based on a communications signal independent of system frequency. The communication signal provides a feed-forward control of dispatchable power resources. A communications network is employed to generate a signal to dispatchable resources that a power imbalance has occurred. Due to fast response power transmission network interfaces associated with the dispatchable resources, the respective resources respond in significantly less time than feedback controlled conventional generators which depend on line frequency sensing. The rapid response mitigates the impact of power imbalances and enables greater penetrations of converter-interfaced power generation units such as renewable energy sources to be connected to the grid. |
| Use: Electrical power transmission network. |
| Advantage: Ensures quick respone of resources due to their fast-acting grid interfaces. Reduces power system fluctuations and instability to mitigate impact of power imbalances, while enabling higher penetrations of converter interfaced units such as renewable energy sources to connect to grid. Dispatches imbalance reserves on power transmission grid using communications instead of sensing and reacting to changes in grid frequency. |
| Novelty: The electrical power transmission network () has a controller () in data communication with each sensor module (). The controller receives sensed operating parameters of a primary generation source () and secondary generation sources (). The controller communicates a signal within a communication latency to the secondary generation sources and automatically maintains an updated operational state of the power transmission network in balance by re-dispatching one secondary generation source when an imbalance is detected between a power generation capacity and a connected load resulting in a frequency nadir. The communication latency is less than the time to the frequency nadir. |
| Filed: 10/10/2017 |
| Application Number: US15729334A |
| Tech ID: SD 14192.0 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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