Abstract
Under the regulatory effect of the load we understand the change in the active and reactive capacities of the electric load due to changes in the parameters of the power system, voltage and frequency of the network preventing this disturbance. In practical calculations, the regulatory effect of the load is often neglected. With a significant distance of the load from the power system and the electrically branched network, the static characteristics of the load can have a significant impact on the parameters of the mode. This article proposes to evaluate the influence of the regulatory effect of the load on the voltage level of the network taking into account the value of short-circuit power. In the study, the electric network of the industrial object under study was modeled in the specialized KATRAN software complex and the regulatory effect of the load in question was determined. An algorithm for determining the effect of the power short-circuit power of the power system on the voltage on the buses of the power substation has been compiled. The parameters of the static stability of power consumers are determined taking into account the regulatory effect of the load. The work shows that an increase in the resistance of communication with the power system reduces the current power of the short circuit of the power system, which leads to a greater influence of the regulatory effect of the load on the level of the supply voltage. In the case of branched networks electrically remote from power supplies, this leads to the need for a detailed consideration of the regulatory effect of the load. Also, increasing the distance of the electrical load from the power system affects the stability indicators of electrical machines. In the work, the regulatory effect in various load nodes of the object was calculated, the influence of the frequency regulation of the main electric drives of the pumping station on the regulatory effect of the load was studied and the influence of the regulatory effect of the load on the level of the supply voltage was determined.
Keywords
Load regulating effect, voltage, short circuit power, short-circuit current, power system, cable, resistance, network, load, static stability, power receiver.
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