This chapter will describe the electrical system in a cogeneration plant. The general set-up will be described in this section. The various generator types are described in the paper. The system interconnection and aspects of control and stability, active power control, and reactive power are also described.

Chapter Contents:

• 4.1 Cogeneration plant electrical system overview
• 4.1.1 Cogeneration plant electrical system
• 4.1.2 Grid connection technologies
• 4.2 Types of generators
• 4.2.1 The synchronous generator
• 4.2.1.1 Construction and types
• 4.2.1.2 Reactive power control
• 4.2.2 The asynchronous generator
• 4.2.2.1 Typical use in cogeneration
• 4.2.2.2 Construction
• 4.2.2.3 Reactive power control
• 4.2.3 The power-converter system
• 4.2.3.1 Typical use in cogeneration
• 4.2.3.2 Construction
• 4.2.3.3 Reactive power control
• 4.2.4 Summary of electrical power conversion
• 4.3 Network stability considerations
• 4.3.1 The challenge of the future
• 4.3.2 The role of inertia in a power system
• 4.3.3 The role of a cogeneration unit in island operation
• 4.4 Cogeneration unit active power control
• 4.4.1 General overview
• 4.4.2 Active power control strategies
• 4.4.3 Traditional droop control
• 4.4.4 Fixed output control
• 4.4.5 Fixed output control with frequency bias
• 4.4.6 Isochronous control
• 4.4.7 Conclusion on active power control strategies
• 4.5 Cogeneration unit reactive power control strategies
• 4.5.1 General overview
• 4.5.2 Reactive power control strategies
• 4.5.3 Voltage droop control
• 4.5.4 Power factor control
• 4.5.5 Constant reactive power control
• 4.5.6 Conclusion on reactive power control strategies
• Acronyms
• References

Inspec keywords: reactive power control; power system interconnection; power system stability; cogeneration

Other keywords: electrical engineering aspects; reactive power control; cogeneration plant; system interconnection

Subjects: Stability in control theory; Power system management, operation and economics; Power and energy control; Power system control; Thermal power stations and plants; Control of electric power systems