Solar power plant. Scheme, description

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ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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Photovoltaic installations. Solar power plant. Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / Alternative energy sources

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Mobile solar power plants of the EMS series

Power supply:

temporary headquarters and field hospitals of the Ministry of Emergency Situations;
posts and block posts of the Ministry of Internal Affairs, the border service, the Russian army and other special departments;
temporary base camps for fishermen, hunters, tourists, climbers, geologists, prospectors, builders;
stationary objects of mobile and space communications, stationary and mobile radio stations, professional and amateur video cameras, means of visual and technical control, television and radio receivers, laptop computers, lighting equipment and other devices with an operating voltage of 1,5 to 12 V.

Figure 2.2 shows a solar mobile power station of the EMS-140 type, and figure 2.3 shows an autonomous solar power station with a sun tracking system.

Photovoltaic installations. solar power plant
Fig.2.2. Solar mobile power plant EMS-140

Photovoltaic installations. solar power plant
Fig.2.3. Autonomous solar power plant with a solar tracking system

As backup power: for uninterrupted operation systems when centralized and local electrical networks are turned off.

Charging: Accumulators with a rated operating voltage of 6 and 12 V.; all types of mobile radiotelephones, satellite phones through car adapters included in their package.

Mobile solar power plants are manufactured in several modifications and differ in output power, the design of the solar panels used and the battery capacity.

All power stations are completed with a daylight lamp, switching devices and connecting cords. The body of the control unit and the battery container are made of plastic, and the bags-cases and covers are made of durable material, which makes it convenient to transport and store mobile solar power plants.

Stationary power plant with a solar battery with a capacity of 1 kW

Solar modules of the KM series can be connected in series and in parallel. With the help of these connections, such technical parameters of the total solar battery (current strength, output voltage, power) are created that, when it is operated at different latitudes, correspond to the parameters required by the consumer.

The minimum power of solar panels for 12 Volt batteries is 15; thirty; 30 watts.

The maximum power of a solar battery is limited only by the area on which it is installed.

The buffer batteries are maintenance-free lead batteries with a capacity of 100,200 or more Ampere hours. These batteries are charged by powerful charging and protection devices.

These products provide a total charging current of up to 12 Amps (6 Amps for each channel from two solar panels). At the same time, the processes of recharging and deep discharge of the battery are controlled in automatic mode, which significantly increases its service life.

The principle of operation of solar power plants is based on:

direct conversion of solar energy into electrical energy;
accumulation and storage of this electrical energy in a buffer battery;
providing power to consumers in the required form through a voltage converter, current converter and switching devices.

Stationary solar power plants of the ESS series are designed to provide electricity to:

stationary, temporary or mobile facilities located in isolation from centralized electrical networks;
backup power for uninterrupted operation systems in case of disconnection of centralized or local electrical networks.

Products of the ESS series are not mass-produced, but are designed, manufactured and installed by specialists for an individual customer and specific technical and operational requirements.

As converters of solar energy into electrical energy in power plants of the ESS series, solar modules of the KM series are used, manufactured using a unique technology of three-stage amorphous silicon. Operational characteristics, namely resistance to external mechanical influences (impact, bending) allows using them (in addition to solar-to-electrical energy converters) as a roofing material.

Author: Magomedov A.M.

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