Enhanced power generation from two-winding single-phase SEIG using LMDT-based decoupled voltage and frequency control

Kalla, Ujjwal Kumar ; Singh, Bhim ; Murthy, S. Sreenivasa (2015) Enhanced power generation from two-winding single-phase SEIG using LMDT-based decoupled voltage and frequency control IEEE Transactions on Industrial Electronics, 62 (11). pp. 6934-6943. ISSN 0278-0046

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Official URL: http://ieeexplore.ieee.org/document/7110598/

Related URL: http://dx.doi.org/10.1109/TIE.2015.2435698

Abstract

This paper proposes a leaky minimal disturbance theory (LMDT)-based decoupled control of voltage and frequency for two-winding single-phase self-excited induction generators (SEIGs) for enhanced power generation and power quality improvement. Single-phase two-winding SEIGs are normally designed with 33% derated capacity in comparison to three-phase SEIGs of the same frame size. Using single-point operation performed by the proposed decoupled voltage and frequency controller (DVFC), the two-winding single-phase machine can generate enhanced power output, nearly 33% higher than its normal capacity. It is equal to the power generated by a three-phase machine with the same frame size. The DVFC consists of a voltage source converter (VSC) and a closed-loop controlled dump load. A single-phase VSC is used for harmonics and fundamental reactive power compensation for system voltage control and harmonics mitigation. The control of VSC is achieved using an LMDT-based control algorithm. The minimal disturbance theory-based control algorithm is used for potentially fast convergence and fast dynamic response, whereas the leakage factor is added for improving the steady-state performance of the system. The LMDT control-based VSC-battery energy storage system scheme is also implemented for the voltage and frequency control of a single-phase SEIG. Both schemes are implemented in real time using a digital signal processor.

Item Type:Article
Source:Copyright of this article belongs to Institute of Electrical and Electronics Engineers.
Keywords:Voltage and Frequency Control; Single Phase SEIG; Power Quality Improvement
ID Code:106394
Deposited On:07 Aug 2017 12:26
Last Modified:07 Aug 2017 12:26

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