Master student Lachkova M.I., Ph.D.Dyakov I.A.

Tambov State Technical University, Russia

POWER SYSTEM "SMART HOME"

"Smart Home" - it is a set of technologies and systems that help to make our lives comfortable, safe and of course, to save on costs through optimization of energy.

To ensure correct operation of the complex requires a good power supply system, which plays a role in the foundation of the house.

Power System performs the following functions: it provides trouble-free operation of all home devices; extends the life of the equipments; reduces energy costs (unplugging unused appliances, or switch off the appliance when the power supply is overloaded) [1]; voltage change in the lighting system (can be programmed to different intensities of light which will be automatically changed depending on the time of day, the weather, the presence or absence of people in the room, etc.); notify the owner, with SMS-messages on a phone, about what is happening in the house (i. e., overheating, short-circuit or failure of the equipment) [2].

Figure 1 - The "Smart House" scheme the power supply system [2]

The power system is located in the special power supplies, which are evenly distributed over the network, which provides a balanced electrical load [3].

Power supplies are protected against short-circuit, and when power failure in the electrical greed - all the equipments in the system saves your settings.

In case of brief power outage "smart home" system smoothes out fluctuations in power supply voltage, and prolonged absence of power - switch off all equipment, security and communication systems [3].

For stable operation of the "smart home" systems needed to power all the devices was fed without interruption, i. e. the operation of equipment in the moments of commutation should be not disrupted.

Uinterruptedpowersupply

Accumulator batteries

Diesel or gasoline generator

voltage switch converters or current converters

rechargers

Figure 2 - Structure of the uninterruptible power system "Smart Home"

Let us consider in detail, all the components of an uninterruptible power supply structure.

Batteries - storage device and save the electricity. It is allow you to convert the unstable current and voltageof the generating device to a constant and stable [4]. The main indicator of the battery - it's capacitance, measured in ampere-hours (Ah). Number of batteries is determined by calculation on the project-specific power home.

Batteries can be connected in series - to increase the output voltage, or in parallel - for the operation at the same voltage, but with increased current output [4].

Petrol or diesel generators turned on automatically when disconnected centralized power on and off when it starts. More, the batteries to protect from dropping in voltage.

Current converters function as inverters. From batteries, they receive a direct current voltage of 6, 12, 24, etc. (V) and invert it into alternating current voltage of 220 volts and 50 Hz - the necessary parameters for household appliances.

Chargers are selected based on the capacity of the batteries required to power "smart home".

Manage the power system can be remotely by installing the appropriate software beforehand, via SMS messages, and monitor the state of the system is possible through special applications [1].

Everyone wants his house to be comfortable and safe for life. This can be achieved only with the help of reliable and high quality power supply system because any electrical equipment is very sensitive to power quality, and the negative consequences can be as minor failures and serious damage to the equipment.

The power supply system of "smart home" allows to eliminating disturbances in the supply of electricity, such as:

- Voltage dips that lead to outages and equipment overload;

- Deviations and fluctuations that significantly affect the efficiency of power supply units;

- Lightning pulses, which can damage the device.

Thus, it becomes possible to provide consumers with the necessary quality of electricity.

The power supply system of "smart home" can save on utility bills up to 35% [1].

References:

1. Dom-automation: [Electronic resource]. СПб.,2007 – 2016. URL:http://dom-automation.ru. (Date of use:30.09.2016).

2. ELITETECHNOLOGY: [Electronic resource]. М.,2016. URL:http://elite-teh.ru/sistema-umnyj-dom/sistema-upravleniya-elektropitaniem-umnogo-doma/.(Date of use: 7.10.2016).

3. Vira-Artstroy:[Electronic resource]. М.,2016. URL:http://www.eremont.ru/umidom/upravlenie_elektropitaniem_v_umnom_dome/. (Date of use: 7.10.2016).

4. Encyclopedia of master: [Electronic resource]. М.,2016. URL:http://muzhik-v-dome.ru/elektrichestvo-i-osveshhenie/avtonomnoe-i-rezervnoe-elektrosnabzhenie-doma/. (Date of use: 7.10.2016).

5. MTK:[Electronic resource]. М.,2016. URL:http://www.mtk-gr.ru/katalog/istochniki-besperebojnogo-pitanija/akkumuljatornaja-batareja-leoch-djm-12120. (Date of use: 2.10.2016).