초록 ▼

A photovoltaic system controller particularly adapted for utilization with a photovoltaic power system including a photovoltaic array, system battery, load and, optionally, an auxiliary generator. The controller utilizes a microprocessor to monitor various parameters of the system and to perform sys

A photovoltaic system controller particularly adapted for utilization with a photovoltaic power system including a photovoltaic array, system battery, load and, optionally, an auxiliary generator. The controller utilizes a microprocessor to monitor various parameters of the system and to perform system control functions. The microprocessor is provided with a plurality of setpoints corresponding to desired system parameters for utilization as reference points for the conducting of control functions. The setpoints are adapted to be easily field adjustable to cover a wide range of parameters. The controller is particularly suited for adaption to an entire spectrum of system designs merely by replacing the programmable memory component of the controller. The controller derives its power from a tap off the system battery and is designed to withstand the harsh environment associated with remote site locations. All of the control functions are temperature compensated. The controller is provided with timing control means which allows the controller to be inactive between operating cycles so as to reduce power requirements.

대표청구항 ▼

A photovoltaic system controller for utilization with a photovoltaic power system including at least a photovoltaic array, a system battery adapted to be charged by said array and a load adapted to be powered by said battery, said controller comprising a microprocessor having an erasable programmabl

A photovoltaic system controller for utilization with a photovoltaic power system including at least a photovoltaic array, a system battery adapted to be charged by said array and a load adapted to be powered by said battery, said controller comprising a microprocessor having an erasable programmable memory, said microprocessor having means to receive input data from said array, said battery and said load, said microprocessor having means to evaluate said input data in relation to at least one predetermined setpoint, said microprocessor in response to said evaluation being adapted to disconnect said battery from said array or to disconnect said load from said battery, said setpoint being adapted to be adjusted to a second setpoint by adjustment means, said erasable programmable memory being adapted to be changed whereby said evaluation performed by said microprocessor is also changed.