Frequency Control of Power System with Renewable Power Sources by HVDC Interconnection Line and Battery  Considering Energy Balancing

Onuka, Shoyu; Umemura, Atsushi; Takahashi, Rion; Tamura, Junji; Sakahara, Atsushi; Tosaka, Fumihito; Nakamoto, Ryosuke

doi:10.4236/jpee.2020.84002

Cited by 10 publications

(3 citation statements)

References 13 publications

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“…After the AC circuit breaker has operated. Only the DC component of the fault current remains zero [11,12]. erefore, in order to simplify the analysis process, the MMC DC side bipolar short-circuit fault is usually divided into two processes for analysis before the converter is blocked and after the converter is blocked.…”

Section: Methodsmentioning

confidence: 99%

Application Analysis of MMC-HVDC AC Tie Line Transmission in New Energy Power Generation

Sun

Dang

Jia-yi

2022

Journal of Control Science and Engineering

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In order to solve the problem of new energy power generation, the author proposes an application analysis method based on MMC-HVDC AC tie line transmission in new energy power generation. This method analyzes the research status of the operation, protection, and control of HVDC flexible transmission systems in various countries and summarizes the advantages of flexible HVDC transmission systems compared with traditional DC, the research focus of the system protection control is explored from the research methods and research ideas. Experimental results show that: the dynamic response of the average value of the capacitor voltage when the two control systems are subjected to external disturbances, the disturbance is set as the DC side voltage rise, and the amplitude is 5%. Conclusion. MMC-HVDC is beneficial to improve the stability and reliability of system operation.

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Section: Methodsmentioning

confidence: 99%

Application Analysis of MMC-HVDC AC Tie Line Transmission in New Energy Power Generation

Sun

Dang

Jia-yi

2022

Journal of Control Science and Engineering

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“…Bao et al put forward the idea of adapting power output to power demand [1]. Onuka et al proposed a virtual inertial control system to reduce power system frequency fuctuations caused by renewable energy (RE) output fuctuations [2]. Jaiganesh et al argued that the appropriate choice of renewable energy could greatly reduce the demand for fossil fuels, thereby increasing the sustainability of the electricity supply [3].…”

Section: Introductionmentioning

confidence: 99%

Application of Multimedia Quality Evaluation Relying on Intelligent Robot Numerical Control Technology in New Energy Power Generation System

Sun

Dang

2023

Journal of Robotics

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New energy (NE) power generation technology has become an important means to solve the problems of global energy demand and environmental governance due to its sustainability and cleanliness. However, restricted by climate and other factors, the instability of its power generation capacity has a serious impact on the voltage multimedia quality evaluation of small microgrids, which even causes damage to important equipment. This paper proposed a multimedia quality evaluation method in the new energy power generation system relying on intelligent robot numerical control technology. According to the state characteristics of different units, the expanded representation models of conventional units, wind turbines, and photovoltaic units were established, respectively. Based on intelligent robot numerical control technology, a multimedia quality monitoring model of the new energy power generation system in random production simulation was established. The planned outage condition of the unit, which was ignored by the current stochastic simulation method, has been fully considered to ensure the rationality of the simulation of intelligent robot numerical control technology. The intelligent robot numerical control technology was used to explore the expected production power change of the unit and to improve the calculation speed and accuracy. In this paper, an appropriate wind and solar power generation model was constructed based on the output characteristics of wind and solar. Secondly, the influence of random faults between units on the subsequent loading rate was studied through probability calculation. The start-stop factors of conventional units were comprehensively analyzed. Then, the expected value of unit start-stop times was obtained. The average relative error of the expected value of the power shortage of the new energy electricity generation system (EGS) was 2.45%, and the error was lower than 2.98%. In the intelligent robot numerical control technology in this paper, the planned outage condition of the unit was considered, which showed the correctness and superiority of the multimedia quality evaluation of the proposed model.

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“…Visual display is mainly to display the conclusions obtained by assisting decision-making in a way that is convenient for users to understand, which includes the display of LC, high-dimensional, multi-source, and real-time changing information in the time and space dimensions. In this way, managers can more intuitively and accurately understand the meaning expressed by the conclusion in the process of SLI, and understand the operation state of the PS [19].…”

Section: Figure 1 Source-load Interactive Platformmentioning

confidence: 99%

Key Problems of Source-load Interaction in New Energy Power System Based on Multi-objective Optimization

2022

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In the face of the current global shortage of fossil energy, the greenhouse effect seriously affects the development of the world economy and people's health, countries are actively seeking new energy(NE) to replace fossil energy, in order to achieve sustainable economic development and curb the continuous warming of the global climate, which will dominate the future development. At the same time, the breakthrough of modern technology in comprehensive energy technology makes the urban power grid gradually change to electricity-based, and includes water, heat, gas and other multi-energy supply forms. The increase in the installed scale of renewable energy(RE) has brought many problems to the operation and scheduling of the power system(PS). The NEPS(NEPS) actively and fully accepts RE, and its power supply side contains a large number of intermittent and random fluctuations of RE power. The existing optimal dispatch strategies for PSs including RE that consider emissions do not fully consider source-load interaction(SLI), and ignore the deep peak regulation of units and the joint dispatch of user loads under the new situation. To this end, this paper analyzes the user-side characteristics of wind, solar and thermal power generation(PG) units through the multi-objective optimization(MOO) model of the cost of the NEPS, and simulates five dispatching scenarios on the source-load interactive platform. The PS is optimally dispatched to reduce the economic cost of the unit.

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Frequency Control of Power System with Renewable Power Sources by HVDC Interconnection Line and Battery Considering Energy Balancing

Cited by 10 publications

References 13 publications

Application Analysis of MMC-HVDC AC Tie Line Transmission in New Energy Power Generation

Application Analysis of MMC-HVDC AC Tie Line Transmission in New Energy Power Generation

Application of Multimedia Quality Evaluation Relying on Intelligent Robot Numerical Control Technology in New Energy Power Generation System

Key Problems of Source-load Interaction in New Energy Power System Based on Multi-objective Optimization

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