HXS10 Controls Solar-Thermal Actuation Systems

Yokogawa has developed the HXS10 controller to control the actuation systems of solar-thermal and photovoltaic power-generation systems. The HXS10 helps to maximise power-generating efficiency by controlling the angles of heliostats and solar panels so that they stay pointed at the sun as it moves across the sky. Based on the facility location, date and time, the HXS10 calculates the position of the sun through a high-resolution (64-bit) solar-position algorithm and operates motors or hydraulic actuators to adjust the angle of the heliostats and solar panels so they stay pointed toward the sun.

The HXS10 is designed specifically for the control of solar-tracking systems and, compared to general-purpose controllers such as PLCs, is said to generate lower initial costs and require less engineering time. It is made from environmentally resistant and durable components, and can withstand temperatures ranging from -20 to 70C, making it suitable for the control of solar-power-generating facilities installed in deserts and other harsh locations.

The HXS10 has a communication function that allows it to be monitored by a host system in a central control room. To eliminate communication traffic overload and create a more secure and stable communication environment, each of HXS10's communications can be routed to the host system via another HXS10 unit. Target markets include heavy-machinery companies that manufacture solar-thermal and photovoltaic power systems; as well as application control of solar-tracking actuation systems.

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