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Solar controller is used for solar energy system

cindy / 2015-01-13
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 Sometimes referred to as a solar power system, a solar energy system is a collective term for the various types of equipment necessary to harness and make use of solar energy. Solar energy systems today can be created by purchasing individual pieces of equipment, or by acquiring complete kits that contain everything that is needed to establish a viable solar energy storage and retrieval system. While purchasing these systems is still somewhat expensive, the costs associated with securing and installing a power system of this kind are much cheaper than even a decade ago.


Solar energy systems are usually centered around two specific pieces of equipment: the solar panels and the battery. Panels are mounted in a position where they will have direct exposure to sunlight for the majority of the day. The energy that is captured by the these panels is stored in the battery or batteries, making it possible to utilize the energy any time of the day or night. It is important to note that solar panels continue to collect energy, even when the weather is cloudy.


To aid in the function of the panels, most solar energy systems also come with what is known as a mount. Essentially, the mount is a framework for the panels, and can be adjusted to maximize energy collection in different seasons. Some mounts are equipped for manual repositioning, while more recent models include power driven hydraulics.


Controllers are also a common part of solar energy systems today. The controller helps to manage the flow of power from the batteries into the electrical wiring of the building. As part of its basic function, the device ensures that the circuits are not overloaded and the power flow is sufficient to meet the needs of the building occupants. Many controllers also include an inverter, which can detect when an overload is building and take steps to automatically shut down the system.


A meter is also an essential component in most solar energy systems. Meters help to monitor the current percentage of stored energy in the batteries. This function can help homeowners to adjust their usage to match the amount of stored energy. A feature of this type can be especially important during months of the year when more power is needed for heating and cooling purposes.

As more people develop an interest in alternative energy production, the popularity of solar energy systems has increased significantly.


This has made it possible for many of the individual components to be available in various retail settings, using plans available in books and online to create a simple solar power system. It is also possible to work with solar energy contractors to design a viable system for a home or other building, or even custom order a system from one of several solar energy companies.


A temperature controller is a device that controls the outputs of a heating or cooling system. This control is achieved by linking temperature sensors installed in the heated area or system to the controller. The data captured by the sensors is compared to a user preset reference; if the temperature in the system should deviate from it, the controller either activates or deactivates the heat or cooling source accordingly. There are three main categories of temperature controller operation: on/off control, proportional control, and PID control. Each fulfills the same basic function of controlling the temperature but offer differing levels of sophistication and functionality.


Heating and cooling systems typically consist of three basic components: a thermal source, a control mechanism, and one or more sensors. Depending on the complexity of the system and the level of precision required in the control of temperatures, the control and sensor mechanisms may be no more complex than a bimetal switch. Extended, intricate production systems may, on the other hand, feature sophisticated computerized controls which drive several heat sources based on the data received from numerous sensors. To achieve this range of control intervention, thermal dependent systems use one of three basic types of temperature controller.


The first temperature controller category is the on/off unit. This is the simplest of all controllers and offers a single level of control. With this type of controller, the heat source runs at full power and is either switched off or on depending on the system temperature. A feature known as on-off differential is built into this type of controller which prevents relays, contactors, or valves from being damaged by “chattering” if the temperature changes occur too rapidly. This feature allows the system temperature to exceed the set point by a certain margin before the controller switches prevent rapid on/off cycling.


The second temperature controller type is one which is capable of proportional temperature adjustment. This controller reduces the power at which the heater runs as it nears the reference set point. This avoids system temperatures from exceeding the set point as is the case with the on/off type of controller. If the temperature does stray too far from the set point due to environmental issues, the controller then functions as an on/off unit either keeping the heater power full on or switched off.


The third type is the proportional with integral and derivative (PID) controller. This kind of controller functions in the same way as standard proportional units but includes two extra, time-dependent adjustments. These adjustments are typically marked as "reset" and "rate" on the device and allow extremely stable temperature control in applications where the system load requirements change frequently. This variant, however, requires fine tuning of all adjustment parameters to function correctly.

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