AUTONOMOUS POWER SUPPLY OF THE LOCAL SYSTEM FOR CONTROL OF THE FUNCTIONING OF A SEGMENT OF A LONG OBJECT (PIPELINE) AND ITS EXTERNAL LIGHTING ON THE RENEWABLE BASIS
Ключевые слова:monitoring, oil pipeline, hydrate plugs, sensor networks, lighting, storage, maximum power, solar panel
For the safe operation of gas and oil pipelines in the territory of the Republic of Kazakhstan, in view of the high percentage of paraffin in the extracted oil, the monitoring of the condition of individual sections of the oil pipeline becomes urgent, as well as continuously monitoring the parameters of the transported oil. Such technological objects are of an extended nature, systems for monitoring their functioning must measure, store and transmit over a radio network up to twenty-five important parameters, such as oil temperature, amount of moisture, etc. Remote control systems are highly energy-intensive, and the replacement of batteries in wireless sensor networks containing a large number of these off-grid monitoring systems is time-consuming. In order to increase the battery life of wireless control systems, one option is to design a platform that can store energy from renewable energy sources. When collecting energy from a solar panel, it is possible to carry out the energy storage process in such a way that the maximum power from the panel is generated. This is done by applying algorithms that find the maximum power point of the solar panel. Methods for optimizing the collection of solar energy for powering wireless sensor systems were considered in this work. The algorithm for finding the maximum power point is performed by decrementing the discharge time of the inductive element and comparing the output power of the solar panel before and after these changes. The time stops decreasing if the solar panel's power output is at its maximum. Rebalancing the load current of the solar panel is done periodically by time shifting.