Zhanat Issabekov

Dr. Zhanat Issabekov


Research Focus & Metrics

Academic Career Length

2Years (2025-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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2 October 2025 in Energies
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Journal Article
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ANAleksandr Novozhilov
Aleksandr Novozhilov
ZIZhanat Issabekov
Zhanat Issabekov
TNTimofei Novozhilov
Timofei Novozhilov
BIBibigul Beissembayevna Issabekova
Bibigul Beissembayevna Issabekova
LTLyazzat Tyulyugenova
Lyazzat Tyulyugenova
In this paper, a method to improve the protection of a four-core power cable of a salt-producing floating platform equipped with an automatic breaker with an independent tripping mechanism is suggested. The use of this automatic breaker in combination with a suggested protection device ensures reliable protection of not only the power cables of the platform against all faults but also the personnel of the platform and animals on the reservoir banks against electric shock in the event of a single-phase ground fault in reservoir water. This would be possible due to a voltage sensor made in the form of a metal ring on the power cable and a relay; one terminal of the relay winding is connected to the voltage sensor by a single-core control cable, and the other to the neutral of a power source on the platform. The typically open contacts of this relay are connected to an electric circuit which includes a power source and a coil for an independent tripping mechanism of the automatic breaker. This design ensures reliable operation of the suggested protection device in the event of a single-phase ground fault in the power cable of the platform when underwater cable insulation is damaged.

2 January 2026 in Electricity
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Journal Article
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ANAleksandr Novozhilov
Aleksandr Novozhilov
ZIZhanat Issabekov
Zhanat Issabekov
TNTimofei Novozhilov
Timofei Novozhilov
BIBibigul Beissembayevna Issabekova
Bibigul Beissembayevna Issabekova
LTLyazzat Tyulyugenova
Lyazzat Tyulyugenova
Electrical energy in urban and industrial power supply networks is mainly transmitted through 6–10-kV cable networks with an isolated neutral, where most lines are made as bunches of cables. Up to 75–90% of electrical faults in these cable networks belong to single-phase ground faults (SGFs), which can cause more severe accidents accompanied by significant economic damage. Widely known simple and directional protections against SGFs are relatively selective and, hence, often incapable of properly responding to SGFs in a network with such lines and detecting a cable with SGFs in the bunch of a damaged line. These disadvantages can be eliminated by using new, simple, and inexpensive, absolutely selective protections capable of detecting a cable with SGFs in a damaged line. We suggest the techniques and devices based on zero-sequence current transformers and ring measuring converters for building up such protection systems. The methods for calculating zero-sequence currents in cables of a bunched cable line, depending on the SGF point and the currents in the responding elements, are developed, as well as a procedure for determining a damaged cable and methods for estimating the responding element thresholds and the length of the protection dead zone.

25 May 2026 in Eng
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Journal Article
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LYLaura Yesmakhanova
Laura Yesmakhanova
ZIZhanat Issabekov
Zhanat Issabekov
BIBibigul Beissembayevna Issabekova
Bibigul Beissembayevna Issabekova
BOBatyrbek Ordabayev
Batyrbek Ordabayev
AZAssemgul Zhantlessova
Assemgul Zhantlessova
OTOlzhas Manarbekovich Talipov
Olzhas Manarbekovich Talipov
An IoT-based technique is suggested for detecting single-phase earth faults (SEFs) in 6–35 kV cable networks with an isolated neutral. Unlike existing methods based on measuring zero-sequence currents with traditional current transformers, the suggested technique uses a passive magnetically controlled contact (reed switch) placed in the magnetic field of a cable. This enables recording fault currents of 0.5–2.0 A without external power supply and ensures galvanic isolation. The novelty of this technique is the combination of a reed switch current sensor with an IoT platform: instantaneous values of current are measured by the duration of the closed state of the contacts, then the data are transmitted via a radio channel (LoRa 433 MHz, LoRaWAN, or NB-IoT) to a cloud-based SCADA/EMS system for remote monitoring. The amplitude of the current is calculated from the pickup and resetting currents, as well as the duration of the closed state of the contacts; no high-frequency ADC is required. During experimental tests of a prototype with a KEM-5 reed switch and a TZL-10 current transformer, the difference between the calculated and actual protection operation current was no more than 10–5%. Oscillograms confirmed the correct operation of the device when starting, under load, and during an artificial SEF with a current of 1.6 A. The device response time is a fraction of the industrial frequency period, which significantly reduces the emergency mode duration. The suggested system enables decreasing the system average interruption duration index (SAIDI) and the system average interruption frequency index (SAIFI) by selectively disconnecting a damaged section and preventing cascading faults. The use of two independent channels (current transformer and reed switch) increases the reliability of SEF detection and reduces the risk of false operation. Thus, the developed IoT-based technique improves the reliability, safety, and cost-effectiveness of cable network operation.

1 April 2026 in Eng
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Journal Article
Open access
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LYLaura Yesmakhanova
Laura Yesmakhanova
AZAssemgul Zhantlessova
Assemgul Zhantlessova
BIBibigul Beissembayevna Issabekova
Bibigul Beissembayevna Issabekova
ZIZhanat Issabekov
Zhanat Issabekov
DADauren Akhmetbaev
Dauren Akhmetbaev
Mikhail V YaroslavtsevMikhail V Yaroslavtsev
Mikhail V Yaroslavtsev
The growing number of electricity consumers and unstable generation by renewable energy sources (RESs) decrease the efficiency of traditional techniques for modeling large power systems. The diakoptics method is based on structuring a system into subsystems and enables reducing the amount of computation by 2.9 times. However, its classical implementations require successive (iterative) expansion of a scheme, which increases computational time for scaling. This method decomposes a complex system into interacting subsystems with different generation and load characteristics. Generalized parameters are independently calculated for each subsystem and then integrated into the total solution. This significantly reduces the amount of computation, simplifies simulation, optimizes control with allowance for local characteristics, and analyzes intersystem connections to minimize losses and improve stability. This paper suggests not just another Kron calculation but a modification of the diakoptics method, which enables avoiding multiple step-by-step redesigns of a grid by generating generalized parameters based on the complete graph of a system, which significantly reduces computational costs when analyzing large power systems. The method simultaneously considers the entire grid topology. This eliminates successive iterations: if a classical approach requires 13 iterations for a network with 11 nodes and 21 branches, the suggested method performs computation in a single computational cycle. The results show high computational efficiency and practical applicability of the method for large power systems. The suggested approach opens up possibilities for reliability analysis, including redundancy assessment and identification of vulnerable elements, which contributes to an increase in the power system stability under conditions of RES integration.

30 June 2025 in Bulletin of Toraighyrov University. Physics & Mathematics series
Verified
Journal Article
Closed access
ZIZhanat Issabekov
Zhanat Issabekov
BIBibigul Beissembayevna Issabekova
Bibigul Beissembayevna Issabekova
ГБГ. С. Балгабаева
Г. С. Балгабаева
ААА. Т. Абенова
А. Т. Абенова
В статье рассмотрено одно из видов интерактивных технологий - геймификация. Геймификация, или использование игровых элементов и механик в неигровых контекстах, получила широкое применение в онлайн обучении. Исследование охватывает разнообразные методы интерактивных технологий: создание квестов, поп-квизов, системы достижений, уровней и наград. Почему необходимо использовать геймификации на уроках особенно в онлайн обучении. Применение геймификации позволяет сделать скучный, неинтересный процесс обучения увлекательным и интересным, похожим на игру. Здесь также задействована эмоциональная составляющая для усиления целевого поведения, вовлечения и лучшего усваивания учебного материала. Возрастающий интерес к геймификации как из основных инструментов при онлайн обучении побудил многих преподавателей использовать элементы геймификации, превращая процесс обучения в творческий процесс. В настоящее время можно сказать, что геймификация становится важным инструментом для повышения эффективности онлайн обучения, делая его более увлекательным, интерактивным и мотивирующим для обучающихся, открывая новые горизонты для эффективного усвоения знаний в онлайн среде. Основываясь на данных о повышении мотивации, улучшении учебных результатов и увеличении вовлеченности студентов, делается вывод о значительной пользе использования геймификации в образовательном процессе. Ключевые слова: геймификация, онлайн обучение, процесс обучения, мотивация, игра.

30 December 2025 in Bulletin of Toraighyrov University. Energetics series
Verified
Journal Article
Closed access
ZIZhanat Issabekov
Zhanat Issabekov
BIBibigul Beissembayevna Issabekova
Bibigul Beissembayevna Issabekova
AZAssemgul Zhantlessova
Assemgul Zhantlessova
ЛЕЛ. Н. Есмаханова
Л. Н. Есмаханова
ASAigerim Bekenkyzy Sagyndyk
Aigerim Bekenkyzy Sagyndyk
В современном мире проблема потерь электроэнергии приобретает всё большую значимость на фоне стремительного роста энергопотребления и внедрения современных технологий. Потери электроэнергии не только приводят к увеличению финансовых затрат, но и оказывают негативное влияние на устойчивость электросетей и экологическую обстановку. Наиболее остро эта проблема стоит в условиях перехода к цифровой экономике, где автоматизация технологических процессов и использование полупроводниковой электроники увеличивают нагрузку на энергосистему, создавая дополнительные потери из-за несинусоидальности напряжения. В данной статье рассматриваются основные виды потерь электроэнергии, причины их возникновения и последствия, а также приводится анализ современных методов их снижения. Особое внимание уделяется проблеме высших гармонических составляющих напряжения и их влиянию на электросети. Исследование направлено на поиск решений для оптимизации энергопотребления, что в дальнейшем способствует реализации государственной политики энергосбережения и повышения энергоэффективности. Сокращение потерь электроэнергии способствует не только повышению стабильности и надёжности электросетей, но и играет важную роль в достижении целей устойчивого развития, а также позволяет минимизировать воздействие на окружающую среду, замедлить рост тарифов на электроэнергию и снизить нагрузку на конечных потребителей. Ключевые слова: потери электроэнергии, технические потери, коммерческие потери, энергоэффективность, тарифы на электроэнергию, качество электроэнергии.