Abstract

Energy conservation has been the trend around the world. In allusion to the status of the rough management of air-conditionings in substations in Shanghai, an automatic control strategy for energy conservation of air-conditionings is confirmed, after analyzing the distribution of brands of air-conditioning equipments. Then, an automatic control system based on the strategy has been established, which can centrally control the air-conditionings and fans of one or multiple brands to save energy automatically. In this system, “manual control mode” has been designed in view of human nature in the field. After the period of setting time, “manual control mode” will turn to “automatic control mode” automatically. The actual results show that the energy consumption can reduce at least 25 percent, when the control system has been put into operation.

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