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| Content Provider | IET Digital Library |
|---|---|
| Author | Wang, Luping Xie, Xiaorong Dong, Xiaoliang Liu, Ying Shen, Hongming |
| Abstract | Short-term frequency stability (STFS) is becoming a great concern for a regional receiving-end power system such as the East China Power Grid (ECPG) mainly for two reasons: (i) the increasing percentage of power injected from multi-infeed (ultra-) high-voltage DCs (HVDCs) with the skyrocketed capacities; (ii) the replacement of traditional generation by the continuously growing inertia-less renewables. However, the existing emergency control is not adaptive enough to maintain STFS under varying operation conditions. In this study, a real-time optimised control is proposed to solve the issue more efficiently. It combines emergency power boosting (EPB) of HVDC and emergency demand response (EDR) in a coordinated way. The optimal control problem is formulated based on the online-updated models that reflect the current state of the system and the dynamic responses of multiple types of generators. By converting the non-linear constraint into a linear matrix inequality, the allocation of EPB and EDR can be optimised in a real-time and coordinated way. The performance of the proposed control and its advantages over the existing one are verified by simulation studies on the model of ECPG with low, normal and high penetrations of renewables. |
| Starting Page | 1462 |
| Ending Page | 1469 |
| Page Count | 8 |
| ISSN | 17521416 |
| Volume Number | 12 |
| e-ISSN | 17521424 |
| Issue Number | Issue 13, Oct (2018) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-rpg/12/13 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-rpg.2017.0884 |
| Journal | IET Renewable Power Generation |
| Publisher Date | 2018-04-16 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Algebra Control of Electric Power System D.C. Transmission Demand Side Management Dynamic Response Dynamic Responses East China Power Grid ECPG Emergency Control Emergency Demand Response Emergency Power Boosting Frequency Control Frequency Stability HVDC Power Transmission Inertia-less Renewables Linear Matrix Inequalities Linear Matrix Inequality Multiinfeed High-voltage DCs Multiinfeed HVDCs Nonlinear Constraint Online-updated Model Optimal Control Optimisation Optimisation Technique Power Grid Power System Control Power System Economics Power System Managemen Power System Operation Power Transmission Control Real-time Optimised Control Regional Receiving-end Power System Short-term Frequency Stability Control STFS |
| Content Type | Text |
| Resource Type | Article |
| Subject | Renewable Energy, Sustainability and the Environment |
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