PMU Supported Frequency-Based Corrective Control of Future Power Systems (URSES)

Uncertainty Reduction in Smart Energy Systems (URSES) project
Dr. ir. M.S.E.E. Popov

Electrical power systems occasionally operate close to their stability limits. In future, the increase in generation from remote renewable sources (PV and windgenerators) will intensify stability problems and accordingly, will increase the uncertainty of system reliability. Unexpected disturbances and inadequate system monitoring can cause catastrophic failures, leading to blackouts, as seen worldwide. Existing measurement and control schemes cannot cope with these problems. A common reason for the occurrence of blackouts is lack of coordinated control when the system is affected by large disturbances.

In order to prevent large-scale blackouts, extensive research into new applications and radical changes in the complexity of Information and Communication Technology (ICT) is needed. In future, it is expected many fossil-fuel power stations to be replaced by bulk renewables. This raises some questions: What will be the frequency response of the future network after a large disturbance? Will traditional preventive control actions be effective enough? How can they be improved? If not, will new options involving flexible real-time corrective control of conventional and renewable generation provide better solutions?

In this project, the main idea is to create a wide-area intelligent system, that empowers future power grids by providing extensive synchronised information in real-time, assessing system vulnerability quickly, and performing timely corrective control actions based on system considerations. The focus of this project will be on the design of a new closed-loop corrective control scheme; elimination of system frequency instability, cascading outages and catastrophic blackouts in existing and future electricity networks."

• Read more about URSES on the NWO Website.

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