http://iet.metastore.ingenta.com
1887

Hydroelectric power stations and plants

More general concepts than this:

More specific concepts than this:

1-2 of 2 results

Filter by subject:

< Any subject

  • Electrical and electronic engineering [2]
  • Power systems and applications [2]
  • Generating stations and plants [2]
  • Hydroelectric power stations and plants [2]
  • Pumped storage stations and plants [2]
  • Computer and control engineering [2]
  • Power networks and systems [1]
  • Power systems [1]
  • Power system control [1]
  • Power transmission, distribution and supply [1]
  • See more See less

Filter by content type:

Filter by publication date:

Filter by author:

< Any author

Capability-coordinated frequency control scheme of a virtual power plant with renewable energy sources
Author(s): Jinho Kim, Eduard Muljadi, Vahan Gevorgian, Manish Mohanpurkar, Yusheng Luo, Rob Hovsapian, Vladimir Koritarov
Source: IET Generation, Transmission & Distribution, Volume 13, Issue 16, August 2019, p. 3642 - 3648
Type: Article
+ Show details - Hide details

Growing trends in the deployment of inverter-based renewable energy will decrease the inertia and frequency control capability of electric power systems by replacing conventional power plants; thus, the frequency of future power systems might be dynamic. This study proposes a capability-coordinated frequency control (CCFC) scheme of a virtual power plant (VPP) including adjustable-speed pumped storage hydropower (AS-PSH), a wind power plant (WPP), and an energy storage system to support the frequency nadir and reduce the steady-state error of system frequency. The CCFC scheme is based on a hierarchical-control structure in which a CCFC organises the output of local frequency control units. To support the frequency nadir, the CCFC dispatches weighted frequency errors that are proportional to the available headroom of the units; thus, the errors are forwarded separately with a system frequency error to the primary control loop of each unit and thereby arrest the frequency nadir at a higher value than a system without the CCFC. To reduce the steady-state error of the system frequency, the CCFC determines a partial active power command by additionally feeding an integrator of the CCFC with a modified frequency error that depends on the unit with the largest control.

Add to favourites
Export citations
Modelling and simulation of ternary pumped storage hydropower for power system studies
Author(s): Zerui Dong, Jin Tan, Antoine St-Hilaire, Eduard Muljadi, David Corbus, Robert Nelms, Mark Jacobson
Source:
Type: Article
+ Show details - Hide details

As the deployment of wind and solar energy increases in the USA, energy storage (ES) will play an important role in future electric power grids to help manage the variability from high penetration levels of renewable generation, ES can provide promising power/energy demand to coordinate with renewables generation, as a virtual power plant (VPP). There is an industry need for the capability in power system studies to model ternary pumped storage hydropower (T-PSH), a pumped storage technology that offers increased system benefits. This study presents a comprehensive vendor-neutral dynamic model of T-PSH in GE's commercial software positive sequence load flow. A new governor model is developed with detailed gate valve modelling and a shared-penstock function. Specifically, this model is designed to simulate the seamless transition among three operation modes: generation mode, pumping mode, and hydraulic short-circuit mode. The developed T-PSH model has been tested and validated on a 10-bus test system. A comparison study of T-PSH to conventional pumped storage hydropower has also been conducted on the Western interconnection system.

Add to favourites
Export citations
Items per page 20 | 50 | 100
Print this page
This is a required field
Please enter a valid email address