Phase-domain model of twelve-phase synchronous machine for EMTP-type simulation

• Published in: International journal of electrical power & energy systems Vol. 143; p. 108459
• Main Authors: Gao, Shilin, Tan, Zhendong, Song, Yankan, Chen, Ying, Shen, Chen, Yu, Zhitong
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.12.2022
• Subjects: CC-PD; Constant conductance model; Electromagnetic transient simulation; EMTP; Integrated power system; Phase-domain model; Twelve-phase synchronous machine; Constant conductance model; Electromagnetic transient simulation; EMTP; PD; Integrated power system; Twelve-phase synchronous machine; CC-PD; Phase-domain model
• ISSN: 0142-0615; 1879-3517
• DOI: 10.1016/j.ijepes.2022.108459

The twelve-phase synchronous machines are widely used for the power supply of integrated power systems on board. This paper formulates two phase-domain (PD)-type models of twelve-phase synchronous machines for the simulation of nodal analysis-based electromagnetic transients programs (i.e., EMTP-type simulation). The PD model for the twelve-phase machine is first formulated, which avoids the interface error in the qd0 model. It is well-suitable for the implementation in EMTP-type simulators. To further improve the simulation efficiency of a power system with twelve-phase machines, a constant conductance PD (CC-PD) model is proposed, avoiding the re-factorization of the network conductance matrix at every time-step. Test results demonstrate the accuracy and efficiency of the two proposed PD-type models for the EMTP-type solution. •The PD and CC-PD models for the twelve-phase machine are formulated.•It fills the gap in EMT simulation for power systems with 12-phase machines.•The CC-PD model can be adopted in real-time EMT simulations for power systems.