A Control Strategy for Variable Speed Condenser Based on Doubly-Fed Machine

Jian Zhang; Wenfeng Li; Huadong Sun; Wei Wei; Zhiqiang Li; Zhichen Geng

doi:10.1049/ses2.70029

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A Control Strategy for Variable Speed Condenser Based on Doubly-Fed Machine

更新时间：2026-06-24

- A Control Strategy for Variable Speed Condenser Based on Doubly-Fed Machine
- IET Smart Energy Systems Vol. 2, Issue 2, (2026)
- 作者机构：
  
  1. School of Electrical and Automation Engineering, Hefei University of Technology (HFUT),Hefei,China
  2. China Electric Power Research Institute,Beijing,China
  3. Contribution: Methodology, Software, Writing - original draft, Writing - review & editing, Conceptualization
  4. Contribution: Supervision, Conceptualization, Project administration, Formal analysis
  5. Contribution: Conceptualization, Project administration, Resources
  6. Contribution: Investigation, Data curation, Software, Visualization
  7. Contribution: Conceptualization, Methodology
  8. Contribution: Writing - original draft, Writing - review & editing, Validation
- 作者简介：
- 基金信息：
- DOI：10.1049/ses2.70029
  CLC：
- Published：2026
- 稿件说明：
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Jian Zhang, Wenfeng Li, Huadong Sun, et al. A Control Strategy for Variable Speed Condenser Based on Doubly-Fed Machine[J]. IET Smart Energy Systems, 2026, 2(2).
DOI：

Jian Zhang, Wenfeng Li, Huadong Sun, et al. A Control Strategy for Variable Speed Condenser Based on Doubly-Fed Machine[J]. IET Smart Energy Systems, 2026, 2(2). DOI： 10.1049/ses2.70029.

摘要

Abstract

The lack of active power support capability in power systems with large-scale renewable energy integration has become a significant constraint on stability. This paper proposes a variable speed condenser (VSC) control strategy based on a doubly fed machine. The rotating rotor shaft can provide inertia support for the system and participate in primary frequency regulation of wind farms or PV stations by adjusting the rotor speed. The stator of the VSC is directly connected to the grid. During short-circuit faults

the principle of flux linkage conservation can provide short-circuit current support for the system

suppressing transient overvoltage phenomena. Meanwhile

the fully controlled power electronic converter can provide rapid voltage regulation capability for the system. Simulation and field test results indicate that the VSC can provide stable inertia support

short-circuit current support

primary frequency regulation and rapid voltage regulation. It can be installed in PV stations and wind farms to enhance the grid-connection performance of renewable energy power plants.

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