List of Articles تجدید پذیر

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  1 - Investigating the structure and evolution of the innovation network of catching-up countries in the field of solar energy using patent citations analysis
  Mahboubeh Nourizadeh Tahereh Saheb Shaghayegh Sahraee Ali Maleki
  10.52547/jstpi.24265.18.72.52
  Over the past three decades, research has focused on how and under what conditions latecomers have been able to become major producers of new technologies, such as renewable energy, and make technological catch-up in this area. This is emphasized for developing countrie More

  Over the past three decades, research has focused on how and under what conditions latecomers have been able to become major producers of new technologies, such as renewable energy, and make technological catch-up in this area. This is emphasized for developing countries because, on the one hand, the greatest growth in energy demand in the coming years will be in these countries, and on the other hand, it is a green window of opportunity for other developing countries to learn and work towards catching-up in these areas. In this research, from the perspective of global innovation networks, the technological approach was investigated by analyzing the structure and evolution of the solar energy innovation network using patent citation analysis. For this purpose, patents in this field were extracted and cleared from the Derwent Innovation over a period 1980-2017. Then, a citation network was formed and the topological structure and country-level indicator were examined using social network analysis methods. The results showed that countries that were able to gradually increase their absorption capacity by joining the global innovation network and moving in the path of technology of leading countries by increasing citations to their patents, could able to be producers of knowledge and granted high quality patents which have been increasingly cited by other countries. These countries found a special place in the network as intermediaries for the diffusion of technology and succeeded in technological catch-up. Manuscript profile
• Open Access Article
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  2 - Distributed renewable generation sources with uncertainty
  Mehdi  Dastkhan Ali Dost  Rostamizadeh
  Today, most of the electrical energy needed by countries is provided by using fossil fuels. Due to the fact that fossil energies are non-renewable and will bring environmental pollution, it is necessary to use renewable sources to provide electricity. In many studies co More

  Today, most of the electrical energy needed by countries is provided by using fossil fuels. Due to the fact that fossil energies are non-renewable and will bring environmental pollution, it is necessary to use renewable sources to provide electricity. In many studies conducted so far in this field, the random behavior of the load and new energy sources have not been taken into account, which makes the results obtained with this assumption not have enough accuracy, and due to the lack of careful examination, usually in these designs, the values The obtained are more than the required amount, which causes the cost of the system to increase. It shows the simulation results of the created index. It should be noted that Monte Carlo simulations do not produce definitive results, but the results that these simulations provide are associated with probability distributions. This proposed method uses this feature to overcome one of the basic shortcomings of the models described in previous papers (most of these papers only dealt with the effects of PHEVs without considering the probability of such effects occurring). The research carried out in this paper analyzes the performance of power devices under the high penetration of PHEVs and photovoltaic electricity and presents new methods to facilitate the integration of these two technologies in current networks. Manuscript profile