Energy management of distribution-level integrated electric-gas systems with fast frequency reserve
US11909218B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Jul 17, 2023 |
| Grant date | Feb 20, 2024 |
| Priority date | — |
| Expiry date | Jul 17, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J2203/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In this disclosure, the energy management problem of the D-IEGS with FFR is analyzed, so as to enhance the frequency stability of the main grid. The post-disturbance frequency response behaviors of both the main grid and the D-IEGS are precisely depicted, where the dead zones, limiting ranges and time constant of the governors are considered. The frequency regulation units of the D-IEGS include GTs and P2G units, whose impacts of providing frequency regulation service on the gas networks are quantified. Considering the time-scale similarity of the frequency dynamics and the dynamics of the GDN, the gas flow dynamics model is adopted. The frequency response dynamics of the GTs and P2G units, and the gas flow dynamics of the GDN, a variable-step difference scheme and a binary variable reduction method are devised.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.