Smoothing the Power Output of a Wind Turbine Group with a Compensation Strategy of Power Variation

This paper proposes a new scheme to reduce the output power variation range of a wind turbine group without an energy storage system. This proposal is based on the active power compensation principle for each wind turbine. In this research, the wind turbine operates in the active power control mode. The reference active power is calculated in such a way that it compensates for the difference between the average output power and the actual output power. To verify and evaluate the proposed method, we simulated a group of two 1.5MW-wind turbines in the Simulink environment of MATLAB. Simulation results were compared to the ones of a wind turbine group without any smoothing scheme and the ones of the same group with the Exponential Moving Average method. From this comparison, we can conclude that with the proposed method, the actual output power of the wind turbine group becomes smoother than that of the wind turbine group without any smoothing scheme. Moreover, the performance of the wind turbine group with the proposed method is better than that of the wind turbine group with the Exponential Moving Average method.

Efektifitas Pengelolaan Perpustakaan

The aim of the effectivenes of library mnajemen is to foster a culture of literacy, icrease the capacity of residents and the environment, as a fun and child-friendly learning park, maintain the continuity of learning by presentinga variety of reading books of accommodating various reading strategies. While the method used to callect observasional data. The ttechnique of sorting and analizing data in this activity uses quantitative research method were collected, grouped then presented in the form of quantitative, description. The data/resuts obtained (actual output) are divided by the target value.

Dynamic Programming in Data Driven Model Predictive Control

In this short note, one data driven model predictive control is studied to design the optimal control sequence. The idea of data driven means the actual output value in cost function for model predictive control is identi_ed through input-output observed data in case of unknown but bounded noise and martingale di_erence sequence. After substituting the identi_ed actual output in cost function, the total cost function in model predictive control is reformulated as the other standard form, so that dynamic programming can be applied directly. As dynamic programming is only used in optimization theory, so to extend its advantage in control theory, dynamic programming algorithm is proposed to construct the optimal control sequence. Furthermore, stability analysis for data drive model predictive control is also given based on dynamic programming strategy. Generally, the goal of this short note is to bridge the dynamic programming, system identi_cation and model predictive control. Finally, one simulation example is used to prove the e_ciency of our proposed theory

Review of the Skill Development Initiatives and its Effect on the Indian Economy

Skill can be related to the work performed by the people. If a unit of work is performed by an unskilled person, the actual output would not match the expected output. Thus, skills and competencies play an important role in a person’s life. The projection of the skills and competencies helps him to achieve the employability status. The person has to sustain his employability by the process of continuous enhancement of his skills by way of various trainings and workshops. So, skills are essential for the development of a person and the country’s economy. This paper deals with the study of the current skill gap scenario prevailing in India and various schemes and programmes propelled by the Government of India to bridge the gap. The paper also discusses the National Policy on Skill Development and Entrepreneurship 2015.

INFLUENCE OF OVERSIZE YIELD FOR THE PRODUCTIVITY OF LOADERS

Industrial observations were carried out to determine the actual output of oversized mines at underground mines (excluding nonmetallic ones) of the Norilsk Nickel. The research methodology provided for measuring the actual output of oversized after borehole breaking of ore massifs of chambers at the underground mines "Oktyabrsky", "Taimyrsky", "Komso-molsky", "Zapolyarny" and "Mayak" of the ZF Norilsk Nickel. A decrease in the productivity of loading and transport vehicles for the shipment of rock mass from the chambers through a re-duction factor associated with the percentage of oversized cargo is determined.

Digital technology in the context of social science teaching at secondary schools

The goal of the study is to contribute to the problem in hand regarding the insufficiently developed digital competencies of teachers of social scientific subjects within the secondary education. The solution to it is based on a precondition that if the teachers will not be digitally competent they will not be able to develop the digital competence of students. This fact can negatively affect their ability to find employment at the labour market of the 21st century, preparedness to further professional education and ability to participate at the lifelong learning. The text at issue solves the problem of digital technology integration into teaching of social sciences, emphasizes multidisciplinary approach to the humanities, social and technological sciences, presents the need of development of teachers´ technical thinking relating to social scientific subjects and specifies common features and differences of the pedagogical and technological sciences. The study is the actual output of the project TAČR (PID: TL 01000192, in the period 02/2018 – 02/2021). It is based on the sub-chapter ”Integration of the digital technology into teaching of social sciences” that will be embodied in the currently prepared monograph “Development of teachers´ digital competencies relating to social scientific subjects at vocational schools”.

An Empirical Analysis of The Impact of Islamic Banking on Real Output in Indonesia

The role and contribution of Islamic finance on economic growth in Indonesia has increased gradually and steadily. This is because the Islamic economy's universal and comprehensively basic principle is the primary foundation of Islamic banking. This research aimed to analyze the role of Islamic Banking on Indonesia's real sector during 2007.01 – 2016.04. This study used the Vector Error Correction Model (VECM) as a tool to analyze secondary data. The result showed that in Indonesia, sharia deposit positively and significantly influenced actual output in the short term. In addition, in the long-term, sharia financing positively and significantly influenced actual output. Moreover, Granger Causality Test proved the occurrence of one-way causality between actual output and inflation. Thus, Islamic banking can encourage actual output in Indonesia. The results of this study become a consideration for stakeholders and policymakers to pay more attention to strategies and policies that support economic growth in Indonesia.Abstrak: Perkembangan keuangan syariah di Indonesia semakin meningkat setiap tahunnya. Prinsip-prinsip dasar ekonomi syariah yang universal dan komprehensif merupakan landasan utama perbankan syariah. Tujuan penelitian ini untuk menginvestigasi peran perbankan syariah terhadap sektor riil di Indonesia selama periode 2007.01 – 2016.04. Penelitian ini menggunakan Vector Error Correction Model (VECM) sebagai alat untuk menganalisis data sekunder. Hasil penelitian menemukan bahwa dalam jangka pendek deposito syariah berpengaruh positif dan signifikan terhadap output rill. Selain itu, dalam jangka panjang pembiayaan syariah berpengaruh positif dan signifikan terhadap output riil di Indonesia. Lebih lanjut, Uji Kausalitas Granger membuktikan terjadinya kausalitas satu arah antara output riil dan inflasi. Dengan demikian, perbankan syariah mampu mendorong output riil di Indonesia. Hasil penelitian ini menjadi bahan pertimbangan bagi para pemangku kepentingan dan pengambil kebijakan untuk lebih memperhatikan strategi dan kebijakan yang mendukung pertumbuhan ekonomi di Indonesia.

Fuzzy control strategy of pure electric vehicle based on driving intention recognition

The main reason that currently hinders the commercialization of electric vehicles is a bottleneck in battery, motor and electronic control technology, however, an In-depth study of electronic control technology is one of the most effective means to break through this bottleneck at present. The purpose of this paper is to solve the problem that the pure electric vehicle is difficult to meet the driver’s acceleration intention in the urban road cycle acceleration work condition and the brake energy recovery process does not consider the battery state of charge during the deceleration work condition. Proposed a control strategy that can meet the requirements of road cycle conditions and driver’s driving intentions and take account of the vehicle operating status. Use a fuzzy control algorithm to develop a fuzzy controller that taking the motor demand speed change rate and battery state of charge as input, the motor demand torque compensation coefficient as output. The experimental results show that the modified control strategy can improve the actual output power, the actual output torque of the motor and actual driving force of the wheel under the premise of maintaining economy; it also improved the acceleration performance and climbing performance of pure electric vehicles, and can recycle braking energy efficiently. The experimental results show that the secondary development control strategy can meet the requirements of the cycle work condition CYC_ECE_EUDC for the speed and driving force and the driver’s driving intention under the premise of not sacrificing economics.

Evaluating User Experience of a Multimedia Storyteller Panorama Tour: The Story of the Markham Car Collection

A storyteller panorama tour, The Story of the Markam Car Collection, was developed as an example for museums and cultural institutions concerning the use of panoramas combined with multimedia to tell stories of specific large objects (antique cars). It was designed for multiple platforms to involve and engage audiences via large curved screens while allowing for access via portable devices. Understanding users’ requirements is essential when designing and developing virtual museum tours. Measuring digital productions’ usability is an ongoing challenge that affects the improvement of user experience and the actual output. A variety of techniques and approaches are available to test digital productions’ usability and the related user experience. It is possible to measure and evaluate the production’s usefulness, including users’ engagement and understanding. However, the best method for assessing museum-related digital productions varies depending on aims, capacity, audience, and local context. In this paper, we demonstrate the strategy we employed to evaluate the particular storyteller panorama tour’s usability, user experience, engagement, and resulting audience understanding. The results of the evaluations showed that storyteller panorama tours could be an effective, attractive, and engaging storyteller method for cultural institutions. However, the findings also indicated that the users’ age, gender, and computer-related experience influence the use and enjoyment levels. We share our experiences and offer an example of how to evaluate a storyteller panorama tour. We believe that the presented evaluation strategy would be applicable to other museum-related projects, as well.