Optimal Dispatch of CHP in Network with Heat Pump and Electric Storage

Cogeneration system like combined heat and power (CHP) is gaining popularity because it can reuse the waste heat to produce useable thermal energy, also it increases the overall flexibility of the system and increases coordination between heat and electricity systems. Using a heat pump (HP) helps achieve significant system benefits such as HP can efficiently provide heat energy for consumers, which reduces the operational costs of central heat supply from combined heat and power (CHP) units. In this paper, a framework is developed to evaluate the economic benefits of integrating HP into a CHP system with Energy Storage System (ESS). Case studies based on the IEEE 24-bus system demonstrate that by investing in HP and ESS, the operational costs of CHP systems can be effectively reduced in both the electric and heating sectors. In this paper three cases are considered. DC Optimal Power Flow (DCOPF) on IEEE 24 bus system having CHP, Heat Pump and Energy Storage System (ESS) is performed and it is considered as base case. Case I is considered by excluding ESS and Case II is considered by excluding CHP. Locational Marginal Prices (LMPs) are calculated for each case and the results are then compared. Also, the impacts on Heat price are observed.