Risk Assessment for Distribution Systems Using an Improved PEM-Based Method Considering Wind and Photovoltaic Power Distribution

Gong, Qingjie; Lei, Jiazhi; Qiao, Huijie; Qiu, Jingjing

doi:10.3390/su9040491

Cited by 9 publications

(4 citation statements)

References 34 publications

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“…The first paper [14] addresses the risk assessment of power distribution systems by considering four major predefined risk indices. As stated by the authors, the intermittency and variability of the distributed generators of a distribution system are the primary sources of risk.…”

Section: Contributionsmentioning

confidence: 99%

Advances in Multiple Criteria Decision Making for Sustainability: Modeling and Applications

Shen

Tzeng

2018

Sustainability

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Abstract:With the surging complexity of real-world problems in important domains such as sustainability, there is a need to leverage advanced modern computational methods or intelligent techniques to support decisions or policy-making. In this Special Issue, 15 selected and formally peer-reviewed papers contribute their novelty and findings, by applying various advanced decision methods or computational techniques to resolve different sustainability problems. Despite the innovations of the proposed models, most of the selected papers involve domain expert's opinions and knowledge with in-depth discussions. These case studies enrich the practical contributions of this Special Issue.

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Section: Contributionsmentioning

confidence: 99%

Advances in Multiple Criteria Decision Making for Sustainability: Modeling and Applications

Shen

Tzeng

2018

Sustainability

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“…A majority of current PV at military bases are grid-tied, and the majority of the power generated leaves DOD facilities through power purchase agreements. Although, the U.S. military has looked at the impact of improving sustainability with PV [105,106] as well as PV sources for military microgrids [107] and forward operating bases [108], it is still not commonly used as shown in this review. PV is well documented to increase security in a distributed network [109,110], which can be using a security by design [111] method with PV as a power source.…”

Section: Policymentioning

confidence: 99%

U.S. strategic solar photovoltaic-powered microgrid deployment for enhanced national security

Prehoda

Schelly

Pearce

2017

Renewable and Sustainable Energy Reviews

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The U.S. electrical grid, the largest and most complex man-made system in the world, is highly vulnerable to three types of external threats: 1) natural disasters, 2) intentional physical attacks, and 3) cyber-attacks. The technical community has recommended hardening the grid to make it more resilient to attack by using distributed generation and microgrids. Solar photovoltaic (PV) systems are an ideal distributed generation technology to provide power for such microgrids. However, both the deployment velocity and the policy of how to implement such technical solutions have been given far less attention than would be normally considered adequate for a national security risk. To address this threat, this paper reviews the technical and economic viability of utilizing defense contracting for the beginning of a national transition to distributed generation in the U.S. First, the technical scale of electrical demand and the solar PV system necessary is analyzed in detail to meet the first level of strategic importance: the U.S. military. The results found that about 17GW of PV would be needed to fortify the U.S. military domestically. The current domestic geographic deployment of microgrid installations in the critical U.S. defense infrastructure were reviewed and compared to historical grid failures and existing and planned PV installations to mitigate that risk. The results showed a minimal number of military bases have introduced solar PV systems, leaving large parts of the Department of Defense electrical infrastructure vulnerable to attack. To rectify this situation, the technical skills of the top 20 U.S. defense contractors is reviewed and analyzed for a potential contracting transition to grid fortification. Overall the results indicate that a fortified U.S. military grid made up of PV-powered microgrids is technically feasible, within current contractors skill sets and economically viable. Policy recommendations are made to accelerate U.S. military grid fortification.

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“…Traditionally, stochastic methods are used to assess risk in power systems [18]. Such methods have been used recently to determine the risk of disturbances within grids with connected PV sources [19][20][21][22][23][24]. Stochastic methods are suitable due to the stochastic variability of PV generation, which is caused by the unpredictability of weather conditions leading to variable solar irradiance.…”

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confidence: 99%

“…Severity degrees are commonly used to calculate the risks associated with the operation of PV sources in power systems [19,20,22,23]. We also use this concept in the article.…”

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confidence: 99%

Evaluating the Risk of Exceeding the Normal Operating Conditions of a Low-Voltage Distribution Network due to Photovoltaic Generation

2022

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Connecting photovoltaic micro-installations to a low-voltage network changes the operating conditions of the network. As a result, in certain situations, the permissible operating limits may be periodically exceeded. The risk of exceeding the normal operating conditions of the network depends on multiple factors, including the installed capacity of the photovoltaic sources. In this article, we use a time-series method to determine the annual risks of exceeding the bus voltage limits, the rated current of the lines and transformer, and the acceptable limit of the negative sequence component of bus voltage, as well as the risk of a reverse flow occurring, and the risk of energy losses increasing. We calculate these risks for different levels of penetration of the photovoltaic sources, different divisions of the rated power of the photovoltaic sources between individual phases, and different consumer load profiles. We perform calculations on a CIGRE test network using OpenDSS and statistical meteorological data for the Katowice (Poland) weather station. The results obtained indicate that connecting photovoltaic micro-installations to a low-voltage network has the greatest impact on the risk of reverse flow occurring and the risk of energy losses increasing. In addition, the risk of overvoltage and branch overload increases substantially. The method we present allows one to determine the value of the hosting capacity of a given low-voltage network, ensuring that the assumed risk of exceeding the normal operating conditions of the network is retained.

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Risk Assessment for Distribution Systems Using an Improved PEM-Based Method Considering Wind and Photovoltaic Power Distribution

Cited by 9 publications

References 34 publications

Advances in Multiple Criteria Decision Making for Sustainability: Modeling and Applications

Advances in Multiple Criteria Decision Making for Sustainability: Modeling and Applications

U.S. strategic solar photovoltaic-powered microgrid deployment for enhanced national security

Evaluating the Risk of Exceeding the Normal Operating Conditions of a Low-Voltage Distribution Network due to Photovoltaic Generation

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