What it does
Most solar farms have fixed solar panels that are inefficient with a low capacity factor. They require large land areas which are undesirable for small countries. Senslar solves problems with its smart 3-DOF movement and modular design that can float on water.
Your inspiration
"2016 Electricity Generation Mix in Malaysia comprises of 43.5% gas, 42.5% coal... and solar energy is less than 0.3%," my lecturer explained. I was staggered. I discussed with Adha, in our robotics class, and he suggested to design an automated solar PV system. As we walked home, we passed by the UNITEN's lake and suddenly the idea of the automated solar PV system on WATER came across. This idea would be the best solution to the inefficiency of the current solar PV system and the land scarcity issue as Malaysia is a small country. I gathered my friends and started brainstorming before joining a mini design competition. We got 2nd place.
How it works
1) Modular platforms with a detachable solar panel. The number of platforms can be increased by demand due to its modular concept. The platforms can be easily assembled using a slot locking system. 2) The Brain platform houses the main controller of the whole system and all the electrical and electronic components. 3) The single anchoring pole acts as the rotational point and structural support for the floating platforms. The diameter of the anchoring pole needs to be increased when the number of platform increases. The anchoring pole allows platforms to slide vertically along the single structure while still maintaining the electrical connection. 4) A stepper motor for each platform is used to tilt the solar panels. It has 45° tilting angle for each side (both sides will be 90° degree). 5) Two paddles with motors at the bottom of two platforms allow 360° rotation either in clockwise or counterclockwise direction.
Design process
Our design process consists of the following steps in chronological order: Discussion, Literature Review, Sketching, 3D model, Structural analysis simulation using CAE software, Design of electrical circuits, Electrical components selection, Fabrication using a 3D printer, Integration and installation of electrical components, Code programming, Performing test and lastly Refining, fixing and improving the model. The most critical step was the literature review. We have investigated many designs and patents to ensure that our design is novel, attractive and non-repetitive. The first tested model was the small orange colored platform (watch our video). We later improved our design by adding many features such as the tilting, vertical motions, a customized electrical connector, anchoring pole, etc. for our current proof-of-concept model (15 cm x 15 cm platform size). For future prototype (2.5 m x 2.5 m), we have refined the design. Each member was responsible for a specific task. Nonetheless, whenever one of us encountered a problem, we solved it together. Some of the difficult problems that we have managed to solve are; tangled wires issues during the rotational movement, wiring connection between solar panels and the brain, the stability of the anchoring pole and many more.
How it is different
This is the first design of a floating solar PV system with 3 degrees of freedom (DOF) motion built with a modular concept and detachable components. The 3-DOF motion and modular concept are not offered by any designs or patents that we have studied. Using our algorithm, we have fully optimized the rotation and tilting motions so that Senslar will move less to track the sun' position and to maximize power generation. The passive vertical motion (sliding along the anchor pole) allows Senslar to overcome small waves, avoiding any external torque or strong vibration issues. The platforms can be easily assembled using the slot locking system. Each corner of the platform has a male/female connector. Senslar can be modified based on customers’ requirement and budget, effortlessly due to its modular design. An advanced solar PV panel can be easily installed without having to replace the floating platforms. The modular design offers easy maintenance and repair work.
Future plans
The proof-of-concept model was a successful one. We have started a company, the SENSLAR TECH. Currently, we are building the actual prototype. However, our resource is limited as the estimated amount required for the development cost is USD40,000 (9 platforms). We are actively looking for partners or investors through competitions and meetings to support this project. By the end of 2018, we will complete the construction and testing of the prototype. In 5 years time, we plan to install Senslar on a few lakes in Malaysia. In the next 10 years, we aim to be one of the leading power supply companies in Malaysia.
Awards
We completed the proof-of-concept model just in 4 months and participated in the 30th International Innovation, Invention & Technology Exhibition (ITEX18) in Malaysia. We got a silver medal. Though not getting a gold medal because our product was just a small model, we have learned a lot to improve our product.
Share this page on