Teoria completa Electric Power Systems

Name: Teoria completa Electric Power Systems
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Author: M1000

Revisionato il 28/06/2026

di M1000

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Rielaborazione personale dei contenuti teorici trattati durante il corso tenuto dal professore Bovo. The Electric Power System course is focused on the calculation of the symmetrical and …

Esame electric power systems

Facoltà Ingegneria

Dal corso del Prof. Bovo Cristian

Università Università degli Studi di Pavia

A.A. 2021-2022

97 pagine

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LOAD DURATION CURVE

Power systems need energy but also power. About the power we know that there is a constraints regarding the balance condition. The total power produced has to be to the total power required by the load.

This implies that, when we use an generation pattern includes also the non programmable energy sources, we have a problem about this conditions, because the non programmable renewable energy resources, photovoltaic and wind power plants, are characterized by a strong volatility. The output (the power produced by this unit) also depends on the real time conditions of the weather (wind speed, sunny day).

The power injected by the system are no constant, more over is not possible to control these power injected, the consequence of this situation is that we have a strong variation of the power injected in the systems in the real time, that depends of the penetration of this sources in the systems. Also possible to manage this situation?

Generally the traditional units, that are very flexible, that you can possible to control the output of the units to be used to manage this situation. The traditional units charge in the real time their output to compensate the variations of the power produced by the non programmable energy sources.

One of the possible solution of this point regards the possibility to integrate the non programmable renewable en. sources with the storage systems. The st. systems can be help the syst. to control the power injected by this sources into the systems.

Any reduction of the power to produce by the windness of the pv power plant can be compensated by the possibility to control the power injected or withdrawn by the storage system into the network. Because this systems can be managed in real time to arrange the power production or the power required on the systems. This systems are able to change very fastly, the not only the power, the value of the power, also the sign of the power.

LOAD DURATION CURVE

Power systems need energy but also power. About the power we know that there is a constraints regarding the balance conditions. The total power production has to be to the total power required by the load.

This implies that, when we use an a generation pattern includes also the non programmable energy sources, we have a problem about this conditions, because the non programmable renewable energy resources, photovoltaic and wind power plants, are controled by a strong volatility. The raoutput (the power produced by this unit) it depends on the real time conditions of the weather (wind speed, sunny day)...

These power produced by the system are not constant, more are is not possible to control thiss power injected, the consequences of this situation is that we have a strong variation of the power injected in the systems in the real time, that depends of the penetration of this sources on the systems.

Also possible to manage this situation? generally the traditional units, have very flexible, that we can possible to control the output of the units to be used to manage this situations.

The traditional units change in the real time their output to compensated the variation of the power produced by the non-programmable energy sources.

One of the possible solution of this point regards the possibility to integrated the non programmable renewable en. source with the storage systems. The st. systems can be help the sys. to control the power injected by this into the systems.

Any adirition of the power to produce by the windeed of the PV power plant can be compensated by the possibility to control the power injected or.we drove by the storage system in the network because this syst can be managed in nea time controling the power production or the power required on the systems. This systems are able to change very fast, the not only the power, the value of the power, also the sign of the power.

TRANSMISSION NETWORK

The electric pow. system we have different layers.

1) one layer is from generation systems

2) transmit.

is controlled by extreme high value of voltage systems (400 kV ÷ 230 kV); is meshed network and transformers.

The HV systems is connected to the extreme high high volt.

HV systems are connected by the MV systems.

MV systems and LV systems → they formed the distribution network.

The interconnection between this different voltage levels is obtained using the transformer.

TS and DN their characteristics are very different in many point of view, in particular TS is meshed network.

TS has a particular structure: for example, if we have this structure:

Because, if we have, in next operation the fault of this line, the load disconnected the station of MILANO, the other station the load disconnected to the load station is anyway supplied.

This port is generate customer. The number of the load supplied by each station is very high, and this load is given by the combination of the loads of many customers that are connected to the distribution network at this locally supplied at this station.

It is important to guarantee the continuity of the service because if the one of this station is not supplied by th

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