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LED Lights & PCB

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OUR USP

Established Technology developed by DESI TEAM

Our Designed systems has over 30% more efficiency than all other conventional systems running on AC distribution

In Systems Provided by Other All India Companies

Total Power Loss is Power Loss A+ Power Loss B+ Power Loss C

In Systems Provided by DESI

Total Power Loss is B Only

TECHNICAL OVERVIEW

  • Power : To be produced using Solar PV System ( Panels to be purchased from ISO certified manufacturer only )
  • Power Distribution : DC Power to be distributed on cables mounted over poles / underground.
  • Power Distribution Management : The entire Power Distribution system is based on Remote Controlled Smart Grid on DC.
  • Efficiency : The system adds upto 15% more efficiency.
  1. Solar Panel cleaning is easier & accessible
  2. In case of existing infrastructure, retrofits & wiring can be used.
  3. Lower operative & maintenance cost
  1. No Theft of Power
  2. No Tampering of the Supply Distribution
  3. More Efficient & Cost Effective
  4. Auto Dimming on DC set up reduces Battery Costs

Technical Paper & Advantages of Central Solar Lights to other Technologies

  • Input Power : To be produced using Solar PV System or Mains grid in case of bad weather
  • Power Distribution : Mid Range DC which will be safe from shocks & deliver similar Power on existing /new wire using 50Hz AC
  • Power Distribution Management : Centrally controlled DC Smart Grid with a feed from Solar/Battery/ Mains in order of priority
  • Weather monitor system : Provides continous lighting in bad weather by taking power management decisions based on Generation, Load, Grid availability etc.
  • LED Lights : Complete / Retrofit LED lights with dimming support system
  • Efficiency : The system consumes 45-55% power in comparison to Inverter based system. Detailed calculations against test results are under.
  • Long Distance Power Management : Which provides exactly same intensity output for nearest & farthest installed light
Calculation of Power Consumption for 230V AC & Mid DC Voltage
S No. Parameters for study Using 50Hz Inverter 220 v AC High Voltage DC (96v) Max
A. Basic requirements planned working 12 Hr per day
1 20W Street light, 5Nos Y
Dimming Not Possible for 230V AC		 Y
(Dimming 50%, 8Hr)
2 60W street Light, 5Nos Y Y
(Dimming 50%, 8Hr)
3 Retrofit Bulbs 9W, 3Nos Y Y
(Dimming 50%, 8Hr)
4 3W Garden Light, 5 No Y Y w/o dimming
5 Power Required W-Hr (20*5+60*5+09*3+03*5) * 12 Hrs = 5304 W-Hr (20*5*+60*5+09*3+03*5)*(4+8*.5) Hrs = 3536 W-Hr
B. Efficiencies & Performance of different Technologies
1 Solar to Battery Efficiency PWM, 70% MPPT, >98%
2 Battery 48V 48V
3 Output Voltage 230V, 50Hz 96V, DC
4 Output Voltage conversion, Protection circuits efficiency 85% 97%
5 No Load Power Consumption ~25.0W ~1.5W
6 Loop losses in 1 Km due to current 2% 2-1% on the same thickness of wire due to DC & dimming of power.
7 Conversion efficiency for different type of LED load ~ 85% ~ 95%
Calculation of Power Consumption for 230V AC & Mid DC Voltage
S No. Parameters for study Using 50Hz Inverter 220 v AC High Voltage DC (96v) Max
C. Power Requirements to Run Specified Load
1 Power consumed to run system without Load for 24Hrs. (B.5)*24 25*24 = 600 W-Hr 1.5*24=36W-Hr
2 Input Power required to deliver Load due to efficiency (A.5/B.4) 5304 / .85 =6240 3536/.97 =3645
3 Total Losses in transmission (C.2%B.6) 6240*2% =125 3645*2% =73
4 Losses at the end for LED power conversion = (A.5*(100-B.7)%) 5304*15% =795 3536*5% =176
5 Total Power required due to actual load (C.1+C.2+C.3+C.4) 600+6240+125+795 =7760W-Hr 36+3645+73+176 =3930W-Hr
D. System Configuration
1 Solar Panel requirement with 5% Losses on Battery storage, Panel to battery conversion factor due to PWM/ MPPT & 4.5WHr/W i.e. C.5*105%/(4.5*B.1) (7760*1.05)/(4.5*0.7) = 2586W (3930*1.05)/(4.5*0.96) = 955W
2 12V Battery Ah required with 60% DoD C.5/(12*0.6) 7760/(12*0.6)= 1077Ah 3930/(12*0.6) = 545 Ah
E. Conclusions
1 Load running All Loads as per specification will Work at constant Intensity All Loads as per specification with Auto Dimming , Auto dusk to dawn & Power Management etc.
2 Limitations All Kind of loads All Kind of Load except inductive which is 50Hz based
3 Panel & Battery required 2586W & 1077Ah 955W & 545Ah