Research on Adaptability Evaluation Contents and Indexes for Large Power Grid Construction

2014 ◽  
Vol 986-987 ◽  
pp. 453-458
Author(s):  
Yan Wei Chen ◽  
Lian Guang Liu
Keyword(s):  
Electricity Market ◽  
Technology Development ◽  
Power Grid ◽  
Great Influence ◽  
Theory And Practice ◽  
Energy Structure ◽  
Evaluation Theory ◽  
Large Power ◽  
Evaluation Indexes ◽  
Grid Construction

With the deepening of the electricity market reform and the development of community economy, as well as the increasing of grid scale, researching and establishing the adaptability evaluation theory and method of power grid construction not only is a realistic demand, but also has great influence on improving the evaluation theory system of power grid planning. In this paper, the adaptability evaluation content for large power grid construction consists of the adaptability of the national economy, the energy structure adaptability, grid structure adaptability and the adaptability of technology development. The paper also discusses the constructing theory and practice basis of the evaluation contents, in addition, the evaluation indexes of adaptability are presented in the paper.

Bilateral bidding strategy in joint day-ahead energy and reserve electricity markets considering techno-economic-environmental measures

2021 ◽  
pp. 0958305X2110148
Author(s):  
Mojtaba Shivaie ◽  
Mohammad Kiani-Moghaddam ◽  
Philip D Weinsier
Keyword(s):  
Electricity Market ◽  
Large Scale ◽  
Search Algorithm ◽  
Power Grid ◽  
Mathematical Formulation ◽  
Test System ◽  
Bidding Strategy ◽  
Level Problem ◽  
Optimal Bidding ◽  
Environmental Measures

In this study, a new bilateral equilibrium model was developed for the optimal bidding strategy of both price-taker generation companies (GenCos) and distribution companies (DisCos) that participate in a joint day-ahead energy and reserve electricity market. This model, from a new perspective, simultaneously takes into account such techno-economic-environmental measures as market power, security constraints, and environmental and loss considerations. The mathematical formulation of this new model, therefore, falls into a nonlinear, two-level optimization problem. The upper-level problem maximizes the quadratic profit functions of the GenCos and DisCos under incomplete information and passes the obtained optimal bidding strategies to the lower-level problem that clears a joint day-ahead energy and reserve electricity market. A locational marginal pricing mechanism was also considered for settling the electricity market. To solve this newly developed model, a competent multi-computational-stage, multi-dimensional, multiple-homogeneous enhanced melody search algorithm (MMM-EMSA), referred to as a symphony orchestra search algorithm (SOSA), was employed. Case studies using the IEEE 118-bus test system—a part of the American electrical power grid in the Midwestern U.S.—are provided in this paper in order to illustrate the effectiveness and capability of the model on a large-scale power grid. According to the simulation results, several conclusions can be drawn when comparing the unilateral bidding strategy: the competition among GenCos and DisCos facilitates; the improved performance of the electricity market; mitigation of the polluting atmospheric emission levels; and, the increase in total profits of the GenCos and DisCos.

Community Studies as Formative Evaluations for Citizens

1989 ◽  
Vol 11 (2) ◽  
pp. 14-16
Author(s):  
Marion Dobbert
Keyword(s):  
Rural Community ◽  
Rural Areas ◽  
Theory And Practice ◽  
Community Studies ◽  
Evaluation Theory ◽  
Road Signs ◽  
Ghost Towns ◽  
General Store ◽  
Rural Depopulation

Evaluation has been defined by Blaine Worthen and J. R. Sanders (1973, Educational Evaluation: Theory and Practice. Worthington, Ohio: C.A. Jones Publishing Company, p. 19) as making a "determination of the worth of a thing." The thought of evaluating a community is one that, at first hearing, is likely to give any anthropologist a cold chill. But actually, communities are evaluated all the time; the evolutionary socioeconomic processes of a region continually, although impersonally, evaluate communities. In the process, some are selected to live and others to die and become ghost towns (or future archaeological discoveries). My region, Minnesota, Wisconsin and the Dakotas, is filled with towns that have been evaluated by this process. While they are not ghost towns, they have been reduced to two road signs announcing their names, a tavern, and a deserted general store. This type of evaluation is occurring through the rural areas of the world. It results in rural depopulation and the demise of rural community forms which have been highly valued historically. We might call this process a summative evaluation of a community—a very final one with little chance of successful appeal.

Kaupapa Māori Theory-based Evaluation

2012 ◽  
Vol 12 (1) ◽  
pp. 6-18 ◽  
Author(s):  
Sandy Kerr
Keyword(s):  
New Zealand ◽  
Theory And Practice ◽  
Evaluation Theory ◽  
Kaupapa Māori ◽  
Evaluation Approaches

In an environment where Māori approaches to evaluation are developing quickly, with ever-widening influence, this article is an attempt to capture the theoretical roots of Kaupapa1 Māori evaluation approaches. From a range of Kaupapa Māori theorists, six principles are drawn and their relevance to evaluation theory and practice is discussed. These principles are then mapped to major movements in evaluation theory, illustrating how Kaupapa Māori theory-based evaluation, arising as a unique praxis within the context of Aotearoa2 New Zealand, has strong alignment with international developments.

An Organisational Evaluation Capability Hierarchy Model for Self-diagnosis1

2005 ◽  
Vol 4 (1-2) ◽  
pp. 27-32 ◽  
Author(s):  
Colin A Sharp
Keyword(s):  
Project Management ◽  
Financial Management ◽  
Theory And Practice ◽  
Evaluation Theory ◽  
Information Systems Management ◽  
Capability Maturity ◽  
Wide Range ◽  
Hierarchy Model ◽  
Management Project

The use of Capability Maturity Models in financial management, project management, people management and information systems management in a wide variety of organisations indicates the potential for an Organisational Evaluation Capability Hierarchy to guide the self-diagnosis of organisations in building their evaluation maturity. This paper is about the theory behind this growing trend in organisational governance and organisational diagnosis, and explores its relevance to evaluation theory and practice. This theoretical analysis may have long-term practical benefits for evaluation practitioners, as is being developed in the fields of project management, financial management, and people management in a wide range of organisations.

Navigating Theory and Practice Through Evaluation Fieldwork

2016 ◽  
Vol 38 (4) ◽  
pp. 493-506 ◽  
Author(s):  
Jill Anne Chouinard ◽  
Ayesha S. Boyce ◽  
Juanita Hicks ◽  
Jennie Jones ◽  
Justin Long ◽  
...  
Keyword(s):  
Thematic Analysis ◽  
Theory And Practice ◽  
Cultural Dynamics ◽  
Group Discussions ◽  
Evaluation Theory ◽  
Evaluation Practice ◽  
Reflective Journals ◽  
The Social ◽  
The World ◽  
The Relationship

To explore the relationship between theory and practice in evaluation, we focus on the perspectives and experiences of student evaluators, as they move from the classroom to an engagement with the social, political, and cultural dynamics of evaluation in the field. Through reflective journals, postcourse interviews, and facilitated group discussions, we involve students in critical thinking around the relationship between evaluation theory and practice, which for many was unexpectedly tumultuous and contextually dynamic and complex. In our exploration, we are guided by the following questions: How do novice practitioners navigate between the world of the classroom and the world of practice? What informs their evaluation practice? More specifically, how can we understand the relationship between theory and practice in evaluation? A thematic analysis leads to three interconnected themes. We conclude with implications for thinking about the relationship between theory and practice in evaluation.

Overview and Prospects of Black Start

2014 ◽  
Vol 533 ◽  
pp. 401-408
Author(s):  
Zi Ying Chen ◽  
Jia Lin Hu ◽  
Jia Yao Li ◽  
Wei Xun Long
Keyword(s):  
Electric Vehicle ◽  
Distributed Generation ◽  
Power Grid ◽  
Rapid Development ◽  
Research Development ◽  
Power Sources ◽  
Technical Problems ◽  
Grid Construction ◽  
Microgrid Control ◽  
Operation Characteristics

With the rapid development of power grid, black start has been an indispensable part of power grid construction, and the gradually mature microgrid technology will play an important role in solving power system problems. Otherwise, plug-in electric vehicle will become an important load in future power grid. The black start concept, research status, black start scheme development and its verification are stated in detail; distributed generation and microgrid are introduced; the strategy about taking microgrid as black start power sources is proposed; and key technical problems existing on the combination of black start, microgrid and plug-in electric vehicle are explored according to the microgrid control and operation characteristics. On the basis of summarizing black start and microgrid research development and achievements in the globe, this paper discusses prospects of black start and provides new views and suggestions for its further research.

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