外文翻譯--太陽能發(fā)電技術——光伏發(fā)電系統(tǒng)控制器(完整版)
【正文】 circuit, to prevent the reverse leakage in the night. Because do not need to send the most heat dissipation, not to install the radiator series controller Small volume price cheap series controller, a bypass controller has greater load operation ability, is usually not requiredSpecial than order controllerMore order controller on the basis of the storage battery charging status, automatic setting different charging current. When the battery is in a state of underfill, allowing all square current flow into the battery. Controller when the battery is close to full of consume some square power output, in order to reduce the current flow into the battery. When battery long close to full, gradually stop trickle charging. This way of charging can extend the service life of the battery. More order controllers need to be fortable when ventilation. Usually, this set a relay switch controller, prevent the reverse leakage of the night. pulse controllerPulse controller with chopping way to work, the core ponent of pulse charging pulse controller for battery is a charging voltage modulation charging pulse generator. Start charging pulse controller with wide pulse charging, as the charging voltage rise, charging pulse width Narrows gradually, the average charging current decreases. When the charging voltage reaches in the electricity at ordinary times, charging pulse width goes to zero, rechargeable electric terminated. Pulse controller charging method is reasonable, high efficiency.3 controller performance characteristics put electricity protectionTo avoid excessive battery discharge, is another important power of the pv system controller. If do not pay attention to, the photovoltaic system load can run out of battery power can easily. General photovoltaic system controller has deep cycle battery protection function of excessive discharge. Controller to prevent the battery discharge measures include: (1) is reached in the charge for electricity at ordinary times, disconnect the load. (2) of a semaphore or buzzer alarm, shows that the battery voltage is too low. (3) through to a backup power supply automatically. When the battery is in a state of low charged, start the backup power supply, such as diesel generator to the battery charging. When when the battery is filled, a continuous controller disconnect backup power, photovoltaic system restart it electric storage pool charging operati
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