A precision system for thermostabilization with increased power

• Date: 2018
• Main Author: Kosyak, I. V.
• Format: Article
• Language: Ukrainian
• Published: Інститут проблем реєстрації інформації НАН України 2018
• Subjects: thermostabilisation; proportional-integral-derivative control; highly efficient temperature controller; Peltier module
• Online Access: http://drsp.ipri.kiev.ua/article/view/142898
• Journal Title: Data Recording, Storage & Processing

An analysis of principles construction of temperature stabilization and an experimental research on temperature stabilization system have been carried out. The features of design and construction of systems for automatic temperature control have been considered. A realization of highly efficient temperature controller is proposed. The principles of construction of temperature stabilization systems using Peltier thermoelectric modules are investigated. A highly effective thermal stabilization system for Peltier modules with output power >50 W without the use of expensive controllers has been developed. It is shown that the created thermostabilization system ensures stability of temperature maintenance 0,01 °С. The highly effective system of thermal stabilization optimally combines the basic specifications: high temperature stability, high energy efficiency, low current ripple TEM and low cost. The urgency of the development is due to the fact that the known temperature controllers, which provide high accuracy of the maintenance of the set temperature level in the established modes and good quality of transient processes, have a complicated technical implementation with the use of either programmable controllers or computer control. Their disadvantage is a high cost and low accuracy of temperature stabilization in the range of 0,01–0,1 С. Regulators with a simple technical implementation and low price support the accuracy of stabilizing the temperature of 0,1 С in the established modes with significant error and do not provide stability of the stabilization system in conditions of change in wide limits of the temperature of the surrounding environment. The highly stable temperature regulator proposed in the article with a relatively simple technical implementation solves this contradiction. The controller uses a one-circuit automatic temperature control system. The control loop contains a proportional-integral-differential (PID) regulator, which, in conditions of disturbing effects on the stability of maintaining the desired temperature of the object, provides the necessary change in the control signal at the input of the control circuit.