Abstract: With the development of the photovoltaic industry, the working efficiency of PV panel becomes better, benefited from the development of the electronic and internet, kaizen invests in R & D resources for developing a new solution, making installation simple and reliable. The new product learns experience from last generation product, and the feedback from end-users all over the world. This article will introduce KE 100-PV series solar water pump inverter

Keywords: KE100—PV, Photovoltaic, MPPT, PV water pump

INTRODUCTION

Received the feedback information from the solar market and end-users, we get the following suggestions:

Reduce the PV panel quantity.

  • Because the general solar inverter need high DC input voltage.

Support single phase pump.

  • For the civil water pump, many motors are single-phase, but the solar inverter in the market don’t support single phase, only support 3-phase.

Support AC/PV channels input together.

  • In the night, there isn’t PV input energy, the pump will stop. Some project needs to keep the pump working always.

Easy commissioning.

  • The last generation product, need to modify some parameters to be suitable for different pump, new inverter can work automatically.

Support remote control.

  • People can use mobile APP of website to monitor the running status, and control the system start of stop.
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In order meet the requirement from end-users, and solve the disadvantages of solar inverter in the market, kaizen developed a new product KE 100-PV. It solves all the problems the users mentioned.

PHOTOVOLTAIC

Photovoltaic (PV) is the name of a method of converting solar energy into current electricity using semiconducting materials that exhibit the photovoltaic effect. A photovoltaic system employs solar panels composed of a number of solar cells to supply usable solar power. The process is the both physical and chemical in nature, as the first step involves the photoelectric effect from which a second electrochemical process take place involving crystallized atoms being ionized in a series, generating an electric current.

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TWO SOLUTIONS OF KE100-PV

There are two solutions for different power rating pump, for the pump less than 2.2kW, the solution is as the figure 2, for the bigger power rating pump, the solution is as the figure 3. For little power rating pump <2.2kW, when we configure the solar panels, the PV power is enough, but the PV output voltage is not enough, so it needs to buy more solar panel to increase the PV voltage.
KE 100-PV supply the boost modular, support low PV voltage input and high DC voltage output, can reduce the PV quantity.

The auto-switch modular can detect the PV output voltage, and send the signal to KE100-PV, inverter will control the contactor to turn on/off the AC input.

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The auto-switch modular can detect the PV output voltage, and send the signal to KE100-PV, inverter will control the contactor to turn on/off the AC input.

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CONCLUSION

Because the KE100-PV integrates so many features, such as reduce the PV input voltage, switch power input channel between DC and AC, high IP class IP54, and so on, the end users don’t need to maintain the solar inverter any more after setting the parameters in the first time.

After sunset the light will be weak, KE100-PV can detect the PV voltage is less than the setting point, it will change the power input channel from PV to AC grid automatically. If only PV channel input, KE100-PV will hibernate in the weak sun light and wake up automatically in the morning.

APPLICATION IN SITE

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  • PLii Jt0 : 2.2kW / 1 |?hase 220V / 50Hz / 0.3A / 2750r|?nJ
  • Inverter : KE 100-2R2G-SS25-PV-AS
  • Se›Iar tuaneI : POLY 300W/PC 9 PCS (? in sei-ies)
  • AC |?‹?wer : single-p›hase 220V AG, ñ0Hz.
  • Pump : 1.5kW / 1phase 220V / 50Hz / 6.5A / 2975rpm
  • Inverter : KE 100-1R5G-SS2-PV
  • Solar panel : Mono 270W/PC 8PCS
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  • Pum : 4KW/380V/9.SA
  • Inverter : KE100-FR5G-4-PV
  • Solar Panel : 18*300W/gcs Save 60% cost for the farmer
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  • Pump : 37kW/380V/74A & 4KW/080V/9.5A
  • Inverter : KE100-037G-4-PV & KE100-004G-4-PV
  • Panel : 180”300W/pcs Used for 1 year Save 60% cost
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