| Full text | |
| Author(s): |
Total Authors: 4
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| Affiliation: | [1] Univ Campinas UNICAMP, BR-13083852 Campinas, SP - Brazil
[2] Rensselaer Polytech Inst, Troy, NY 12180 - USA
Total Affiliations: 2
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| Document type: | Journal article |
| Source: | Electric Power Systems Research; v. 180, MAR 2020. |
| Web of Science Citations: | 0 |
| Abstract | |
With the increase of wind and solar power plants connected to the grid, frequency stability has become a concern for transmission system operators. The large penetration of these sources reduces the inertia of the system, which naturally reacts to active power perturbations. In this scenario, a method capable of estimating the inertia constant, as perceived by a particular bus, is of practical importance. This paper presents a novel methodology to automatically assess the power system inertial constant using an autoregressive moving average exogenous input (ARMAX) model and demonstrate it using power system disturbance responses measured by a Wide-Area Measurement System (WAMS). The proposed approach can be divided into three parts: (i) Time window selection, which includes the identification of the start of the disturbance as well as the inertial response; (ii) A low-order ARMAX model method to estimate the constant of inertia as perceived by a particular bus; (iii) Accuracy evaluation. The proposed method is evaluated considering simulated signals corrupted with noise and outliers as well as real measurements from the New York transmission system. (AU) | |
| FAPESP's process: | 19/10033-0 - Development of data-driven metodology for improvement of pperation of EPS with high penetration of wind/solar generation |
| Grantee: | Daniel Dotta |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 16/08645-9 - Interdisciplinary research activities in electric smart grids |
| Grantee: | João Bosco Ribeiro do Val |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 18/07375-3 - Power system operation with high penetration of low inertia generation |
| Grantee: | Daniel Dotta |
| Support Opportunities: | Scholarships abroad - Research |