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DISSERTATION
Master's work subject:
«Automatic project of management technological
processes in power supply systems»
Scientific supervisor: associate prof. Shlepnyov Sergey Vladimirovich
Actuality of work
Many enterprises of different branches of industry links its development with the introduction of modern automated systems of management technological process.
Market relations, defining modern trends of the country’s economy , require the creation and the development of an enterprise, providing the qualitative goods to achieve the minimum of its cost.
Transition is realized on automated management technological process in electrotechnical branches of the country comparatively quickly and with high efficiency.
This promotes:
- broad introduction of new market mechanism;
- raised attention to factor quality of electric powers;
- increase of labour productivity engineer-designer’s and constructor’s: significant increasing of speed, accuracy and quality of labour-consuming calculation, reduction of labour losses;
- significant growth of the microprocessor technology uses and use of automatic and automated systems of different levels.
Purpose and problems of the work
The Purpose of the work is the software development for a computer designed to control technological process on an enterprise in electrotechnical branches of the country.
Following problems are solved the work:
1. The creation of the database for calculation.
2. Analysis of the ways and the designing of the voltage regulation in electrical circuits.
3. The Analysis of the ways to reduce the losses of electrical power in energy installations and the design for of electrical energy economy.
4. The building of dayly graphics loads of an enterprise according to the seasons of the year.
5. The programme estimation of possible decisions, that will help to minimize the electric power losses in the network.
6. The building of desksides scheme of electrical circuits.
Theoretical analysis
The reduction of active electric power losses, conditioned by the circuit reactive power, that is a real working technology of electrical energy economy in Ukraine. The efficient economic regulation of reactive power is required also for maintenance of the conditions of electric power quality to provid normal voltage level on the border of balance accesories of electric circuts, and to reduce the accident rates in main electrical equipments in power system and the consumers of the electric powers.
The economical effect of reactive power compensation is concluded in the reduction of electric power losses an electrical circuit and the reduction of the cost of its building due to increase of the reception capacity.
There is a problem as to the correct and most economical choice of the type, place of the accomodation and the state of working sources of the reactive power. The variant, providing the most economical effect, is called optimum, but the produced for its search for calculation – is called optimised.
The state of the question
For the designing of SCAD, that can the solve tasks program C++ Builder company Borland and application MS Añcess package of the applied programs MS Office are used.
Program MS Añcess is used for making necessary database and to store the information with the possibility to make change it. The Database describes the certain amount of real object and processes, the information about the graphs of the considered enterprise, using hardware and the account of electric power.
C++ Builder - a visual object-oriented program of high level, due to which is more suitable and simple for a user.
There is a possibility to create applied programs and interact with the other applications. In this instance, the application of C++ Builder reads and uses the information from database, created in the application of MS Añcess.
Algorithm of the decision is written in programming language C++.
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