| Abstract: |
| Based on the large-scale penetration of electric vehicles (EV) into the building cluster, a multi-objective optimal
strategy considering the coordinated dispatch of EV is proposed, for improving the safe and economical operation
problems of distribution network. The system power loss and node voltage excursion can be effectively reduced, by
taking measures of time-of-use (TOU) price mechanism bonded with the reactive compensation of energy storage
devices. Firstly, the coordinate charging/discharging load model for EV has been established, to obtain a narrowed
gap between load peak and valley. Next, a multi-objective optimization model of the distribution grid is also
defined, and the active power loss and node voltage fluctuation are chosen to be the objective function. For
improving the efficiency of optimization process, an advanced genetic algorithm associated with elite preservation
policy is used. Finally, reactive compensation capacity supplied by capacitor banks is dynamically determined
according to the varying building loads. The proposed strategy is demonstrated on the IEEE 33-node test case, and
the simulation results show that the power supply pressure can be obviously relieved by introducing the
coordinated charging/discharging behavior of EV; in the meantime, via reasonable planning of the compensation
capacitor, the remarkably lower active power loss and voltage excursion can be realized, ensuring the safe and
economical operation of the distribution system. |
| Key words: Distribution network, Electric vehicles, Multi-objective optimization, Coordinated dispatch, Advancedgenetic algorithm |
| DOI：10.1186/s41601-020-0154-0 |
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| Fund: |
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