초록 ▼

A load site voltage regulation control system. The load site receives electrical power from a utility over transmission lines. The load site also receives electrical power from a local generator unit operating with an inverter. The local generator unit and inverter arc coupled to the load by an EMI

A load site voltage regulation control system. The load site receives electrical power from a utility over transmission lines. The load site also receives electrical power from a local generator unit operating with an inverter. The local generator unit and inverter arc coupled to the load by an EMI filter and a transformer. Voltage at the load is controlled by adjusting the inverter voltage using an inverter voltage command. The inverter voltage command is based on load voltage, inverter voltage, EMI filter voltage, utility supplied current, and inverter current. In one embodiment, the inverter voltage is adjusted to minimize utility supplied reactive and real power and to actively dampen EMI filter voltage, with the inverter voltage command being developed though a multi-loop PPI control system.

대표청구항 ▼

[ What is claimed is:] [1.]1. A method for regulating the voltage at a load site, the load site receiving power signals from a distant power source and having a load site source and a load, the load site source having a maximum power producing capability including a maximum real and reactive power p

[ What is claimed is:] [1.]1. A method for regulating the voltage at a load site, the load site receiving power signals from a distant power source and having a load site source and a load, the load site source having a maximum power producing capability including a maximum real and reactive power producing capability, and the load having a real and a reactive power requirement, the method comprising the steps of:dynamically monitoring the real power required by the load;allowing the load site source to provide a predetermined portion of the real power required by the load up to the maximum real power producing capability of the load site source; andallowing the distance power source to provide any remaining real power required by the load.