Abstract

With the deepening of market-oriented reform of power system, the investment planning of power grid is affected by many factors. According to the actual business process of power grid investment planning, on the basis of traditional power grid planning ideas, the introduction of system dynamics analysis tools will establish a feedback relationship model for many factors related to power grid investment planning, such as economy, security, demand side resource (DR), transmission and distribution price, and carry out simulation calculation, which can provide a reference for making reasonable policy recommendations for power grid investment. The results show that grid companies can adjust their investment plans by themselves in order to meet the grid reliability and under the incentive of the government's transmission and distribution price policy. the adjustment of transmission and distribution price has the inherent characteristics of decreasing volatility, which can be more obvious when reducing the reliability requirements.

Highlights

  • The main task of traditional power grid planning is to determine the optimal system construction scheme according to the results of spatial load forecasting in planning period and the basic conditions of the existing network, so as to minimize the construction and operation costs of the transmission system on the premise of meeting the load growth and safe and reliable power supply

  • According to the causal feedback relationship between various decision factors shown in Figure 1, the system dynamics stack flow diagram model of power grid investment planning is constructed, as shown in fig

  • First of all, according to the existing capacity to meet the load demand, determine the future expansion plan to meet the requirements of power grid capacity adequacy; second, according to the vertical market power in the power market, the government departments formulate corresponding control and incentive policies for the reasonable income of power grid enterprises, which are reflected in the adjustment of transmission and distribution price, and the power grid enterprises weigh the price and marginal expansion Cost, and determine their corresponding willingness to invest

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Summary

Introduction

The main task of traditional power grid planning is to determine the optimal system construction scheme according to the results of spatial load forecasting in planning period and the basic conditions of the existing network, so as to minimize the construction and operation costs of the transmission system on the premise of meeting the load growth and safe and reliable power supply. The relevant research of power grid planning focuses on the security of power grid planning, considering the background of carbon emission reduction, smart grid and so on[3,4]. There are few temperatures on the research of power grid investment planning by using system dynamics in China. Zhou Lisha's viewpoint of system dynamics in power grid project management is discussed in the article of "Research on system dynamics simulation of smart grid project management model"[6]. Construction of system dynamics simulation model for power grid investment planning

Causality diagram of grid investment planning
Stack flow diagram of grid investment planning system
Basic parameter setting
Scenario simulation
Conclusion
Full Text
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