Maximum Power Tracking Solar Controller Model MPPT 20

Maximum Power Tracking Solar Controller Model MPPT 20

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 5 unit

Supply Capability:: 150 unit/month

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1. Structure of MPPT Maximum Power Tracking Solar Controller Model MPPT 15/ MPPT 30

The controller is an indispensable part of solar system, this MPPT Maximum power tracking solar controller is remarkable, because it can adjust with intelligence the working voltage of solar panels, so that the solar panels can reach the maximum power spot of the V-A characteristics curve during the work. Compared with the common solar controller, this MPPt Maximum power tracking solar controller can increase the use ratio of the solar panels power by 10-30%.

2. Main Features of MPPT Maximum Power Tracking Solar Controller Model MPPT 20

· Protection against overcharging of the accumulator

· Protection against over discharging of the accumulator

· Protection against reverse discharging of the accumulator to solar panels

· Overload protection and short circuit protection

3. MPPT Maximum Power Tracking Solar Controller Model MPPT 20 Images

4. MPPT Maximum Power Tracking Solar Controller Model MPPT 20 Specification

Type	MPPT20-12/25	MPPT20-24/50
Nominal Voltage	DC：12V	DC：24V
Voltage scope available for Max. solar power tracking	12-25V	24-50V
Max. open circuit voltage for solar energy	25V	50V
Max. charging current	20A（referring charging current from accumulator）
Max. discharging current	20A	20A
No load losses	≤8mA	≤40mA
Off voltage after full charging	14V	28V
Off voltage when undervoltage	10.5V	21V
Starting recovery voltage	12.6V	25.2V
Efficiency	95%～97%

5. FAQ

We have organized several common questions for our clients, which may help you sincerely:

a) How about your capacity?

We can produce 300,000 set inverter per year currently, 60,000 set solar energy charge controllers. And the product is sold towards domestic and Europe, Australia and Africa etc.

b) How to guarantee the quality of the products?

The company presses the ISO9000 quality management system control product quantity strictly, the export production all passes the relevant national company check (CE, ROHS), and get high evaluation of the customer.

c) How long can we receive the product after signing Sales Confirmation?

Generally speaking, if there is enough quantity of finished products which can meet the clients’ requirement, we can manage the delivery within three to five working days according to the instruction of the payment terms in the Sales Confirmation; if the products need some time to get ready, we will arrange the delivery as soon as possible after the manufacture.

Q:How does a PWM solar controller differ from an MPPT solar controller?: Solar power systems utilize both PWM (Pulse Width Modulation) and MPPT (Maximum Power Point Tracking) solar controllers to regulate battery charging from PV panels. However, their functionality and efficiency differ significantly. A PWM solar controller is a commonly used and basic type of solar charge controller. It controls charging by rapidly switching the PV panel's output voltage between the battery and panel voltages. This creates a pulsating charging current that gradually decreases as the battery reaches full capacity. PWM controllers are simpler and less expensive compared to MPPT controllers. In contrast, an MPPT solar controller is a more advanced and efficient type of solar charge controller. Its main function is to maximize power output from PV panels by tracking the maximum power point of the panel's voltage-current curve. By continuously adjusting the PV panel's output voltage to match the battery's optimal charging voltage, an MPPT controller ensures maximum power extraction, resulting in higher charging efficiency. MPPT controllers are particularly useful when the PV panel's voltage is much higher than the battery's voltage, as they can step down the voltage without wasting excess energy as heat. To summarize, the main difference between PWM and MPPT solar controllers lies in their charging mechanisms and efficiency. While PWM controllers use a basic switching method, MPPT controllers utilize sophisticated electronics to track and extract maximum power from PV panels. As a result, MPPT controllers are generally more expensive but offer higher charging efficiency and better utilization of available solar power.

Q:Can a solar controller be used with a generator or other backup power sources?: Utilizing a solar controller with a generator or alternative backup power sources enables the regulation of electricity flow from solar panels to the battery bank. This guarantees efficient battery charging and safeguards against overcharging or battery damage. The solar controller remains useful when employing a generator or other backup power sources, managing the electricity flow from solar panels to the battery bank. This seamless integration between solar and backup power sources optimizes battery charging and safeguards against potential damage. Incorporating a solar controller with a generator or alternative backup power sources enhances the overall efficiency and reliability of the energy system. The solar controller ensures effective battery charging, regardless of the power source utilized, and maximizes the utilization of renewable energy from solar panels.

Q:How does a solar controller prevent damage to the solar panels from lightning strikes?: The prevention of damage to solar panels from lightning strikes is facilitated by a solar controller, which implements various protective measures. Primarily, it incorporates a surge protector within its structure, capable of diverting excessive voltage caused by lightning strikes away from the panels. This surge protector acts as a barrier, effectively preventing direct contact between the high voltage and the panels. Moreover, grounding mechanisms are often included in solar controllers. These mechanisms establish a secure pathway for lightning-induced currents, directing them safely into the ground. By offering an alternative route for electrical energy, the solar controller ensures that the panels are shielded from the potentially harmful consequences of lightning strikes. In addition, advanced solar controllers frequently employ monitoring and detection systems. These systems employ sensors to identify alterations in atmospheric conditions, such as the accumulation of static electricity or the presence of lightning activity. Upon detecting a potential lightning strike, the solar controller can automatically disconnect the panels from the power source and ground them, effectively isolating them from the electrical surge. Ultimately, a solar controller serves as an indispensable protective device for solar panels during lightning strikes. By utilizing surge protectors, grounding systems, and detection mechanisms, it effectively reduces the risk of panel damage by redirecting excessive voltage, creating a safe pathway for currents, and disconnecting the panels whenever necessary.

Q:What is the role of a solar controller in preventing battery memory effect?: The role of a solar controller in preventing battery memory effect is to regulate and optimize the charging process of the battery. It ensures that the battery is not overcharged or discharged excessively, which helps to prevent the memory effect. By maintaining the battery at the optimal charge level, the solar controller helps to extend the battery lifespan and maximize its performance.

Q:How does a solar controller handle battery temperature monitoring and protection?: A solar controller handles battery temperature monitoring and protection by constantly monitoring the temperature of the battery. This is typically done by using a built-in temperature sensor or by connecting an external temperature sensor to the controller. The controller measures the temperature of the battery and compares it to a predefined temperature range. If the temperature falls outside of this range, the controller takes appropriate actions to protect the battery. If the temperature exceeds the upper limit, the controller may reduce the charging current or completely disconnect the solar panels from the battery to prevent overcharging and potential damage. This is important because high temperatures can lead to accelerated battery aging and reduced battery life. On the other hand, if the temperature drops below the lower limit, the controller may adjust the charging voltage to prevent undercharging. Cold temperatures can significantly affect the battery's performance and capacity, so it is crucial to ensure proper charging in such conditions. In addition to these protective measures, some advanced solar controllers may also offer temperature compensation. They adjust the charging parameters based on the battery temperature to optimize charging efficiency and prolong battery life. This compensation is particularly valuable as it helps to counteract the temperature-related variations in battery chemistry and performance. Overall, through continuous temperature monitoring and appropriate protective actions, a solar controller ensures that the battery operates within a safe temperature range, maximizing its lifespan and optimizing its performance.

Q:Can a solar controller be used with solar panels that are mounted on a boat?: Yes, a solar controller can definitely be used with solar panels that are mounted on a boat. In fact, using a solar controller is highly recommended in such cases to efficiently regulate the charging process and protect the battery bank on the boat. A solar controller helps prevent overcharging, which can damage the batteries, by monitoring the voltage and current coming from the solar panels. It also helps optimize the charging process by ensuring that the batteries receive the appropriate charge based on their state of charge. Therefore, using a solar controller with solar panels on a boat is not only possible but also highly beneficial for the overall performance and lifespan of the battery system.

Q:How does a solar controller handle voltage drops in the system?: A solar controller handles voltage drops in the system by regulating the flow of current from the solar panels to the battery bank. It ensures that the voltage level remains stable and adjusts the charging parameters accordingly to prevent overcharging or undercharging of the batteries. Additionally, some advanced solar controllers may include a feature called Maximum Power Point Tracking (MPPT) that optimizes the solar panel output by converting excess voltage into additional current, compensating for any voltage drops in the system.

Q:How does a solar controller regulate the charging of batteries?: A solar controller regulates the charging of batteries by monitoring the voltage and current levels generated by the solar panels and adjusting the charging process accordingly. It ensures that the batteries are not overcharged, which can lead to damage, and prevents undercharging, which can affect their performance. The solar controller controls the flow of power from the solar panels to the batteries, optimizing the charging process based on the battery's state of charge and the available solar energy.

Q:Can a solar controller be used with solar-powered data centers?: Yes, a solar controller can be used with solar-powered data centers. A solar controller is a device that manages and regulates the charging and discharging of batteries in a solar power system. It ensures that the solar panels are operating efficiently and the batteries are maintained at optimal levels. In the context of solar-powered data centers, a solar controller can be used to control and optimize the flow of solar energy to power the data center's operations while also managing battery backup systems.

Q:What is the role of a solar controller in preventing damage to the solar panels from birds or animals?: The role of a solar controller in preventing damage to solar panels from birds or animals is primarily to deter them from landing or nesting on the panels. Solar controllers typically use various deterrent mechanisms to achieve this. One common method is the use of ultrasonic sound waves that are inaudible to humans but are unpleasant to birds and animals. These sound waves create a hostile environment around the solar panels, making them less attractive to birds or animals seeking a perch or nesting spot. The solar controller emits these sound waves periodically, effectively keeping the area around the panels clear. Another approach used by solar controllers is the implementation of visual deterrents, such as reflective surfaces or moving objects. Birds and animals are often scared away by shiny or reflective surfaces, as they perceive them as potential predators or threats. Incorporating these visual deterrents into the solar controller's design helps to discourage birds and animals from approaching the panels. Furthermore, solar controllers may also utilize physical barriers or netting to block access to the panels. This prevents birds or animals from landing directly on the panels or damaging them with their claws or beaks. These physical barriers are designed to be lightweight and durable, ensuring they do not interfere with the solar panels' performance while effectively protecting them from potential damage. In summary, the role of a solar controller in preventing damage to solar panels from birds or animals is to create an environment that is unattractive and inhospitable to these creatures. By employing deterrent mechanisms such as ultrasonic sound waves, visual deterrents, and physical barriers, solar controllers help maintain the integrity and functionality of the solar panels by keeping birds and animals at bay.

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