Enhanced operational performance of Siirtoverkkomalli using Static Compensators and BESS equipment
Datta, Ujjwal (2016)
2016
Master's Degree Programme in Electrical Engineering
Tieto- ja sähkötekniikan tiedekunta - Faculty of Computing and Electrical Engineering
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Hyväksymispäivämäärä
2016-08-17
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:tty-201608034369
https://urn.fi/URN:NBN:fi:tty-201608034369
Tiivistelmä
This thesis reports on an investigation of the impact of static var compensators (SVC) and static compensators (STATCOM) on the voltage and frequency stability of practical transmission system. It also explores an application of a battery energy storage system (BESS) which serves the purpose of stabilizing an otherwise unstable power transmission network.
A mismatch of energy production and consumption at a given area results in power exports over long distances, sometimes across borders. Power exporting and system stability are some of the major concerns in the transport of electrical energy. It has been acknowledged that FACTS devices are a possible way forward to ensure high throughputs of power with enhanced stability. FACTS equipment has lived up-to its promise in cases where system stability has been a concern. BESS application in power transmission is a new area of study which is just commencing to be explored.
The thesis assesses the impact of the SVC and STATCOM on Siirtoverkkomalli and Nordic-32 in an equivalent form. It includes a comparative study of both FACTS devices under unstable network conditions. Preliminary assessments have indicated that, BESS are very effective means for providing frequency and voltage support during load variations. In this thesis, BESS is applied in Siirtoverkkomalli to assess whether or not BESS can be effective to stabilize an otherwise unstable network.
It has been found that using both the SVC and STATCOM in a transmission system significantly improves stability. The comparison shows that the STATCOM is very effective, outperforming the better known SVC. On the other hand, when a BESS is applied in Siirtoverkkomalli, it shows that it has great potential in stabilizing an otherwise unstable system. Hence, a BESS can perform multiple functions, it provides stability support, similar to the SVC or STATCOM, but it can provide frequency support during load changing periods.
A mismatch of energy production and consumption at a given area results in power exports over long distances, sometimes across borders. Power exporting and system stability are some of the major concerns in the transport of electrical energy. It has been acknowledged that FACTS devices are a possible way forward to ensure high throughputs of power with enhanced stability. FACTS equipment has lived up-to its promise in cases where system stability has been a concern. BESS application in power transmission is a new area of study which is just commencing to be explored.
The thesis assesses the impact of the SVC and STATCOM on Siirtoverkkomalli and Nordic-32 in an equivalent form. It includes a comparative study of both FACTS devices under unstable network conditions. Preliminary assessments have indicated that, BESS are very effective means for providing frequency and voltage support during load variations. In this thesis, BESS is applied in Siirtoverkkomalli to assess whether or not BESS can be effective to stabilize an otherwise unstable network.
It has been found that using both the SVC and STATCOM in a transmission system significantly improves stability. The comparison shows that the STATCOM is very effective, outperforming the better known SVC. On the other hand, when a BESS is applied in Siirtoverkkomalli, it shows that it has great potential in stabilizing an otherwise unstable system. Hence, a BESS can perform multiple functions, it provides stability support, similar to the SVC or STATCOM, but it can provide frequency support during load changing periods.