Засіб автоматизації контролю параметрів електроенергетичних систем

Abstract

Modern technologies for the development of ship power plants are characterized, first of all, by indicators of resource-efficient energy consumption. The relevance of improving these indicators determines the emergence of new automated precision methods and means of monitoring the main characteristics of transporting, generating, and distributing electrical devices. The amount of electric current flowing through the conductive elements of the device is one of these characteristics. At the same time, the analysis of existing control devices for electrical energy values ​​showed the following. The capabilities of most of the sensors used do not allow for effective monitoring of electric power systems. Common problems for all types of instruments for monitoring electromagnetic parameters are the problems of sensitivity, speed and stability of the sensing element, which determine the reliability of the measurement results. To search for ways to improve the means of measuring electric current in powerful ship power plants, the designs of the most common means of this class were considered. In this situation, it seemed expedient to develop a new circuit solution for the current sensor. The design of the device was positioned as such, in which parts made of materials with similar physical and mechanical characteristics are used, there is no need to correct the geometry of all sensor elements, and at the same time a high level of sensitivity and speed of operation of known types of devices are preserved. The main difference of the proposed device lies in the fact that the cladded light guide is rigidly connected two bimorph optically transparent components connected to the corresponding electrodes.

Thus, the combination of opto-ferroelectric elements in the developed sensor will provide: - more adequate conversion of current parameters into a change in the information signal; - compensation of the influence of destabilizing factors on the measuring channel of the sensor; - simplicity and reliability of the sensor circuitry; - no need for constant correction of the geometry of the sensor elements; - improving the quality of functioning through the use of materials with a close coefficient of elasticity and thermal propagation. The use of the proposed sensor will make it possible to adequately and reliably estimate the parameters of the current in the ship's electric power systems.