Power system voltage control with central regulator

V okviru magistrske naloge so bili obravnavani načini za regulacijo napetosti v elektroenergetskem omrežju. Poleg klasičnih rešitev za regulacijo napetosti (sinhronski generatorji, energetski transformatorji, kondenzatorji, tuljave …) se v elektroenergetskih omrežjih pojavljajo potrebe po kompenzacijskih napravah in regulacijskih shemah, ki omogočajo hitrejšo in koordinirano regulacijo napetosti. V nalogi so podrobneje raziskane klasične mehansko preklopne kompenzacijske naprave in naprave FACTS, ki omogočajo hitro regulacijo napetostnega nivoja. Glavni cilj magistrske naloge je razvoj algoritma avtomatskega centralnega napetostnega regulatorja, ki bo avtomatsko zagotavljal ustrezen napetostni nivo. Za testiranje izdelanega algoritma avtomatskega centralnega napetostnega regulatorja smo zgradili model elektroenergetskega sistema, ki smo ga poskušali čimbolj približati dejanskemu elektroenergetskemu sistemu Slovenije, in analizirali njegovo napetostno problematiko. Dobljeni simulacijski rezultati so pokazali učinkovitost in prednosti regulacije napetosti z avtomatskim centralnim napetostnim regulatorjem v kombinaciji s FACTS napravami.This master thesis discusses different approaches for power system voltage control. Next to classic solutions for voltage control (synchronous generators, power transformers, capacitors, coils, etc.) nowadays, faster and coordinated use of compensation devices are additionally needed. In this thesis, classic mechanical switching compensating devices and FACTS devices, which enable rapid voltage level control, were discussed in detail. The main goal of this thesis is to develop an algorithm of an automatic central voltage controller, which will automatically control and provide an adequate voltage level. To test the developed algorithm, an electrical power system model was built. This model closely describes Slovenian electrical power system in order to analyse its voltage level problems. Obtained simulation results show efficient and advantageous use of the automatic central voltage controller in combination with FACTS devices