Principles and solutions for creating power and measurement equipment for plasma actuator research

Abstract

Promising directions of development of aviation technology require use of non-traditional methods of influence on aerodynamic flow. One of such methods is use of plasma actuators. Both theoretical researches and experimental tests demonstrate possibility of expansion of range of laminar flow, increase of angle of attack without flow breakdown and set of other phenomena. Theoretical methods of modeling of this complex system have received significant development. At the same time it is necessary to note both variety of factors in modeling process, and large amount of resources which are required for modeling process. No less significant amount of resources is required for experimental researches in this direction, taking into account both variety of phenomena which will manifest themselves in these processes, and significant difference in characteristic time intervals, inherent in processes which require research. To ensure a controlled and stable barrier plasma discharge, both an appropriate high-potential difference generation device with the ability to control the potential and frequency are required, as well as special measuring equipment capable of operating under these conditions. It is also necessary to take into account the limited technical and financial capabilities in the modern environment. Therefore, the task of creating a controlled high-voltage power supply system for barrier discharge research is relevant.

The article describes the design of a regulated high-voltage alternating voltage source, with frequency control and the ability to measure the output current and voltage. The schemes and their description, design features are given. A series of experiments were conducted to determine the operability of all its elements and modules. The design has shown its operability and can be used in a series of laboratory studies on the control of plasma actuators.