Abstract
Value based services are the new emerging area in Indian Electricity Market. Technically, such value added services in the electricity market are known as Ancillary Services. Voltage Control Ancillary Service (VCAS) deals with local level voltage control problem of power sector. According to IEEE standards 1159:1995, 1250:2011, only ±5% voltage variation is allowed with almost 0 deviations in frequency (±0.03% maximum variation limit) to interconnect any new generating plant with a grid. The utilization of squirrel cage induction generators (SCIG) as wind operated micro grid may be in a fix without adequate availability of reactive power. Besides SCIG, load changes also cause voltage varying problems and so, this paper investigates how load change can be coped up with fast acting reactive power compensator for such arrangements. To demonstrate this real time Simulink models for fixed capacitor and STATCOM are developed using MATLAB software. The SCIG starting and load change conditions are tested with fixed capacitor, six and 12 pulse STATCOM as reactive power compensators. The SCIG performances in terms of rotor speed, voltage, and frequency control characteristics during starting of the machine as well as at the time of load perturbation are compared.
Author contribution: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
Research funding: None declared.
Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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