On 12 October, NPC Ukrenergo and NNEGC Energoatom with the active support of international consultants completed testing of excitation systems at power units of nuclear power plants. Test results represent the last data required to fulfil a number of actions listed in the Catalogue of Measures of the Agreement on the Conditions for a Future Synchronous Interconnection of the IPS of Ukraine and the ENTSO-Е’s power system of Continental Europe (the Agreement). The test results will be used to build a common mathematical model of the synchronous operation of Ukrainian and European power systems. Successful modelling is one of the key preconditions for island mode testing of the IPS of Ukraine in isolation from the power systems of Russia and Belarus.
Tests at Units 1 and 3 of South-Ukraine NPP conducted on 9 and 12 October, respectively, concluded the series of tests planned for this year. This August, similar tests took place at Rivne NPP Unit 2 and Zaporizhia NPP Unit 1. In January—April last year, generator excitation and load frequency control systems underwent tests at 11 power units of 8 Ukrainian TPPs, CHPPs, and HPPs. The test outputs were accepted by ENTSO-E as satisfactory and are used by the Consortium for further modelling.
“Testing and further modelling are supported by USAID and USEA, which helped Ukrenergo engage international consultants who already have the necessary experience in synchronizing the power systems of other countries with ENTSO-E. We have already accomplished the lion’s share of technical measures, which were our “homework” to prepare the Ukrainian power system for transfer to the isolated mode and further synchronization. In particular, last year all necessary tests of excitation and load frequency control systems were completed at power units of thermal power plants, combined heat and power plants, and hydropower plants. This year, similar tests were conducted at NPP power units. For further synchronization, it is also very important that all participants in the energy sector do their “homework” on the implementation of the Catalogue of Measures on time,” said Volodymyr Kudrytskyi, Chairman of the Management Board of NPC Ukrenergo.
The company’s CEO also stressed that another key precondition for the integration of the Ukrainian power system into the European network is the Ukrenergo certification as an independent system operator according to the ISO model (Independent System Operator). To render such certification possible, the Verkhovna Rada should adopt necessary amendments to the Law “On Electricity Market”.
It will be recalled that building a common mathematical model of Ukrainian and European power systems is part of the Catalogue of Measures of the Agreement and is performed under the Service Contract signed by Ukrenergo in September 2019 with the Consortium of ENTSO-E System Operators (EMC, MAVIR, PSE, SEPS, 50Hertz, and Transelectrica).
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