How solar controllers work

1, using a single-chip computer and special software to achieve intelligent control;

2. Accurate discharge control using battery discharge rate characteristics correction. The discharge end voltage is a control point corrected by the discharge rate curve, which eliminates the inaccuracy of the simple voltage control overdischarge and conforms to the inherent characteristics of the battery, that is, different discharge rates have different final voltages.

3, with overcharge, over discharge, electronic short circuit, overload protection, unique anti-reverse protection and other automatic control; the above protection does not damage any parts, do not burn insurance;

4. The series PWM charging main circuit is adopted, so that the voltage loss of the charging circuit is reduced by nearly half compared with the charging circuit using the diode, the charging efficiency is 3%-6% higher than the non-PWM, and the power consumption time is increased; the over-discharge recovery is improved. Charging, normal direct charging, floating charge automatic control mode makes the system have a longer service life; at the same time, it has high-precision temperature compensation;

5. The intuitive LED lighting tube indicates the current battery status, allowing the user to understand the usage status;

6. All control uses industrial grade chips (only for industrial grade controllers with I), which can run freely in cold, high temperature and humid environments. At the same time, the crystal timing control is used, and the timing control is accurate.

7. The potentiometer adjustment control set point is canceled, and the E-side memory is used to record each working control point, so that the setting is digitized, and the error of the control point is reduced due to the potentiometer vibration deviation, temperature drift, etc., and the reliability is reliable. Sex factor

8, using digital LED display and settings, one-button operation can complete all settings, the use of extremely convenient and intuitive role is to control the working state of the entire system, and the battery has overcharge protection, over-discharge protection. In places with large temperature differences, qualified controllers should also have temperature compensation. Other additional functions such as light control switches and time control switches should be optional for the controller;

Battery

The function of the battery is to store the electrical energy emitted by the solar panel when it is exposed to light and release it when needed. Solar battery is ‘battery’Solar energyApplications in photovoltaic power generation. The solar cells widely used in China are mainly: lead-acid maintenance-free batteries and gel batteries. These two types of batteries are suitable for reliable solar power because of their inherent "free" maintenance characteristics and less environmental pollution. The system, especially the unattended workstation.

Inverter

The direct output of solar energy is generally 12VDC, 24VDC, 48VDC. In order to supply electric energy to 220 VAC appliances, it is necessary to convert DC power generated by domestic solar power into AC power, so a DC-AC inverter is required. The working principle of photovoltaic power generation Photovoltaic power generation is a technology that directly converts light energy into electrical energy by utilizing the photovoltaic effect of the semiconductor interface. The key component of this technology is the solar cell. The solar cells are packaged and protected in series to form a large-area solar cell module, and then combined with a power controller and other components to form a photovoltaic power generation device. The advantage of photovoltaic power generation is that it is less restricted by geographical area, because the sun shines on the earth; the photovoltaic system also has the advantages of safe and reliable, no noise, low pollution, no need to consume fuel and erecting transmission lines to generate electricity on site and short construction period.

Photovoltaic power generation uses solar cells to convert solar energy directly into electrical energy based on the principle of photovoltaic effect. Whether it is independent use or grid-connected power generation, photovoltaic power generation system is mainly composed of three parts: solar panels (components), controllers and inverters. They are mainly composed of electronic components and do not involve mechanical components. Therefore, photovoltaic power generation equipment Extremely refined, reliable, stable, long life, easy installation and maintenance. In theory, photovoltaic power generation technology can be used in any occasion where power is required, from spacecraft, down to household power, to megawatt power stations, small to toys, and photovoltaic power everywhere. The most basic components of solar photovoltaic power generation are solar cells (sheets), such as monocrystalline silicon, polycrystalline silicon, amorphous silicon and thin film batteries. Single crystal and polycrystalline batteries are used the most, and amorphous batteries are used in some small systems and calculator auxiliary power supplies.


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