ВЧ-движение 
Вода является источником жизни и необходима для выживания человека и здоровья. Для большинства из нас, стакан свежего, Чистая вода находится всего в нескольких метрах.. Поскольку экономически развитые районы обычно имеют передовую инфраструктуру и технологии, которые могут обеспечить чистую и достаточную водопроводную воду, ensuring that people can easily obtain the required domestic water, improving the quality of life and reducing water-related health problems.
Yet nearly 1 billion people in the world still lack access to safe, чистая питьевая вода. In many developing areas, annual precipitation is very low, or infrastructure is underdeveloped, surface runoff is polluted, and clean water sources are lacking. The nearest water source may be several kilometers away, or the only water source available nearby may be contaminated.
People in some areas have to spend a lot of time and energy to obtain drinking water, and may need to travel long distances to water sources, or rely on limited wells or rivers, which may lead to unsanitary drinking water and increase the risk of water source contamination. These unclean water sources can cause diarrhea, dehydration, dysentery and death. About 47,000 people die from water-related illnesses every week, 90% of whom are children under the age of five.
Water scarcity also disproportionately affects socioeconomically disadvantaged groups, exacerbating inequality.
Solar power drive pumps the underground water
Methods to solve water shortages include long-distance water transportation, water purification projects, groundwater extraction, rainwater collection, и т. д.. From a cost and efficiency perspective, extracting groundwater is undoubtedly the most economical and effective way.
Most of the world’s fresh water is buried under 100 meters. Во многих областях, people are accustomed to obtaining groundwater from wells or hand pumps. Однако, these methods are inefficient and the water flow is very small, making it difficult to meet the domestic water needs of multiple families, not to mention agricultural irrigation. And when the groundwater level is relatively low, it is basically impossible to obtain groundwater manually. В это время, high-lift head water pumps are more commonly used to extract groundwater.
In areas with stable electricity, there is no problem in using water pumps to obtain groundwater. But in areas with water shortages, there is often a shortage of electricity.
Globally, there are still millions of water pumps running on diesel engines, and hundreds of millions of water pumps running on grids powered by fossil fuels. Many power grids are unstable, resulting in premature motor failure or a short window of available power for use with water pumps. How to obtain groundwater with water pumps when there is no electricity, or when residents cannot afford electricity and fuel costs?
Among various clean, low-cost, low-investment energy sources, solar energy is undoubtedly the most widely recognized one. В последние годы, in order to reduce carbon emissions and reduce pollution, various industries have been trying various new energy solutions to reduce or replace the consumption of fossil energy. В то же время, due to the support of energy policies, the improvement of industry technology and the maturity of applications, the proportion of renewable energy and solar energy in the energy structure will continue to increase.
Using solar energy to drive water pumps to obtain groundwater has been widely used in many areas. The advantages of this method include emergency use during power outages, use in areas without power grid coverage, and low investment. В то же время, in areas which with less precipitation and water shortages, that are also with high sunlight intensity and long hours have abundant solar energy resources.
Disadvantages of Traditional Solar Pumps
But traditional solar water pumps also have many shortcomings. In the absence of electricity:
1. On cloudy days, the solar power is insufficient. When it is lower than the starting power, the water pump cannot be used;
2. Cannot be used when it rains or at night;
3. If used with a battery, it needs to be charged before use, и срок службы батареи короткий;
4. If the battery is used while charging, the actual available battery capacity will be only half.
Although the traditional solar water pumps use BLDC motors, which improves efficiency to a certain extent, the utilization rate of solar energy is very low. The controller of a traditional solar water pump is directly input from solar panels and does not have an MPPT module. The function of MPPT is maximum power point tracking to stabilize the output voltage. Поэтому, утром, evening and cloudy days, the voltage of solar energy is low and cannot drive the water pump. During these times of the day, even if there is sunlight, groundwater is not available.
On rainy days and at night, the water pump cannot operate without sunlight. If the battery is configured to drive the water pump to operate when there is no sunlight, the solar energy needs to be connected to the battery first and then power the water pump. In this way, the battery is always in a charging or discharging state, the battery life is relatively short, and it cannot be discharged while charging. If a management system is added to the battery and it is used while charging, the battery capacity needs to be divided into two parts, and the actual discharged capacity is only half.
When water is needed, the water pump may not be able to operate. These problems have caused a lot of inconvenience to users.
E-Hybrid Tech High-efficiency Solar Water Drive Solution for Pump
For more efficient solar water pump solutions, HF Motion is a pioneer in this area. HF Motion not only provides efficient solar drive solutions for water pumps, but also provides BLDC motors to make water pumps energy-efficient, controllable, and intelligent.
HF Motion’s E-Hybrid solar technology can be widely used in various civil and industrial power supplies, and water pumps are one of the larger areas. Its specific technical feature is that solar energy and batteries are input in parallel and complement each other in real time. This technology module can be integrated into the water pump controller together with MPPT, which facilitates installation and saves costs. In different usage scenarios, the following operating modes can be achieved:
The above three operating modes basically cover all application scenarios. In any scenario, the water pump can obtain rated power output without affecting the user’s access to water resources. MPPT modules improve the efficiency of solar energy input and extend the available period of solar energy. The battery charging and discharging periods are separated, and the power for water pump does not need to go through the battery, extending the battery life. The battery is in standby mode and is always fully charged for use at night or on rainy days.
HF Motion provides a complete range of E-Hybrid solar water pump drive solutions and products, including the following options:
- E-Hybrid tech power supply, it can turn the traditional water pumps into high-efficiency solar pumps;
- The BLDC motor controller integrates E-Hybrid tech and can be used with solar pumps to replace the original motor controller;
- The BLDC motor controller integrates E-Hybrid tech and solar pump as a complete system, for a better experience.
HF Motion was founded to make green energy more popular, not only to people with strong consumption ability, but also to help those who need light to brighten their lives. As far as they are concerned, what our technology brings is the guarantee of survival and life. It is a timely help, not the icing on the cake.
HF Motion is committed to becoming a leader in the cross-application field of motor control and solar power. Since its establishment, it has been fulfilling the above mission to bring new energy into the homes of ordinary people, making it affordable, easy to use and worry-free. Making the relationship between humans and the environment more friendly, and life more comfortable.